Technical Library

Seismic Data, Processing, Technology, Well Data Reports and Industry and Trade Publication Features, from the Experts at TGS

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South Halfway 3D. An example of a challenging onshore acquisition and subsequent processing and a unique way of performing a pre-stack elastic inversion on a difficult dataset

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October 18, 2022
Author: Marianne Rauch*, TGS, Doug Brost, TGS, Hassan Odhwani, TGS, Aravind Nangarla, TGS, Adriana Gordon, Qeye Labs
The 3D survey, South Halfway was acquired in December 2019 in Wonowan, BC, Canada. The size of the survey is 94 km2 and covers a bog and river valley.

Deconvolution of upgoing and downgoing wavefields: A data example from the NOAKA OBNexperiment

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October 18, 2022
Author: Tim Seher*, Hassan Masoomzadeh, Yong Ren, Simon Baldock and Bin Wang (TGS)
Ocean bottom node surveys are popular tools for both seismic exploration and monitoring due to the possibility for superior imaging and velocity model.

Vz denoise and P/Z matching in 3D curvelet domain

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October 18, 2022
Author: Yong Ren*, Chenhao Yang, Tim Seher, Matt Hawke and Eddie Cho (TGS)
Ocean bottom node (OBN) seismic data processing commonly uses the combination of hydrophone (P) and vertical geophone (Z) components to separate upgoing.

Monument Butte 3D – Reprocessing case study in Uinta Basin

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October 18, 2022
Author: Mitch Preston, Xinxiang Li, TGS; Seth Berman*, Phillip Keith, Ovintiv; Christopher Egger, Josef Heim, Nebojsa Pralica, David Brookes, James Beck, TGS
A 3D land seismic survey was processed using amplitude and azimuth-friendly workflow. The sequence includes multiple iterations of surface consistent.

DAS noise attenuation using wavelet stack

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October 18, 2022
Author: Zhou Yu*, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, TGS, Houston, USA. Weihong Fei, Chevron
Dense spatial sampling (~1m) and low signal-to-noise ratio (SNR) are typical features of distributed acoustic sensing (DAS) data. We have developed a.

High resolution sequence stratigraphy of the Mexican Gulf of Mexico based on interpretation of well and seismic data

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October 18, 2022
Author: Cian O’Reilly*, Elisabeth Royce-Rogers (TGS)
Prolific source rocks, an abundance of trap types and stacked reservoirs and seals combine to make the Gulf of Mexico (GOM) a hydrocarbon super-basin. The.

Noise analysis and ML denoising of DAS VSP data acquired from ESP lifted wells

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October 18, 2022
Author: Ge Zhan*, Yao Zhao, Cheng Cheng, and Josef Heim, TGS; Weihong Fei, Mike Craven, Scott Baker, and Gilles Hennenfent, Chevron
3D DAS VSP data were acquired in two active wells equipped with Electrical Submersible Pumps (ESPs) from the Big Foot field in the deep water, Gulf of.

Sub-L1 Norm Regularized Inversion Deblending in Local 3D FK Domain for Ocean BottomNode Data

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October 18, 2022
Author: Jun Sun*, Zhaojun Liu, Manhong Guo, Graeme Stock, Bin Wang (TGS)
Inversion deblending in a sparse transformed domain is an important approach to obtain high quality deblended data for simultaneous source acquisition..

Full-waveform inversion and FWI imaging for land data

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October 18, 2022
Author: James Sheng, Cristina Reta-Tang*, Faqi Liu, TGS; Alfredo Vázquez Cantú, Alejandro Cabrales Vargas, Pemex
Velocity model building and imaging for land surveys are particularly challenging due to the complexities of the near surface model and strong noise. In.

Long offset ocean bottom node FWI and multi-azimuth tomography for high-resolution VMB

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November 24, 2020
Author: Adriana Citlali Ramirez, Simon Baldock, Dhiman Mondal, Jan Gromotka, Mattew Hart
Filed Under: SEG
Efficient acquisition of large-scale, azimuth-rich ocean bottom node (OBN) data, with long offsets and high fold is now a reality. Such data provide an.

Imaging the complex geology of the Faroe Shetland Basin, West of Shetlands

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November 24, 2020
Author: Matthew Hart, Guy Hilburn, Sandeep Bhamber, Jason Twigg, Rachel Ward, Steve Drewell, Simon Baldock
Filed Under: SEG
The Faroe Shetland Basin area located to the West of the Shetland Islands is typified by complex structural features with highly variable velocities,.

Deblending of OBN ultralong-offset simultaneous source acquisition

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November 24, 2020
Author: Yi Xuan, Raheel Malik, ZhigangZhang, Manhong Guo, Yi Huang
Filed Under: SEG
Ocean Bottom Node (OBN) data can be acquired using blended acquisition or simultaneous shooting that allows temporal overlap among different sources. A.

Vz Noise Attenuation Using Dual-Tree Complex Wavelet Transform

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November 11, 2020
Author: Yong Ren, Chenhao Yang, Tomislav Degel, Zhaojun Liu
Filed Under: SEG
In ocean bottom seismic data, vertical components are frequently contaminated by converted shear waves due to the scattering in the shallow seabed. Proper.

Ultralong Offset OBN- Path to better subsalt image

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November 11, 2020
Author: Hao Xing, Yang He, Yi Huang, Jianshun Sheng
Filed Under: SEG
Ocean Bottom Node (OBN) acquisition provides ultralong offset and full-azimuth (FAZ) illumination for better model building and imaging. A blended-source,.

Structure enhanced Least-squares migration by deep learning based structural preconditioning

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November 11, 2020
Author: Cheng Cheng, Yang He, Jian Mao, Bin Wang
Filed Under: SEG
Iterative data-domain least-squares migration can overcome acquisition limitations and recover the reflectivity for desired amplitudes and resolutions..

Structure constrained least-squares migration of total reflection and its applications

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November 11, 2020
Author: Cheng Cheng, Yang He, Jian Mao, Bin Wang
Filed Under: SEG
Least-squares imaging of primary reflection can overcome acquisition limitations and recover the reflectivity for desired amplitudes and resolutions (Wang.

Shear wave noise attenuation and wavefield separation in curvelet domain

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November 11, 2020
Author: Chenhao Yang, Yi Huang, Zhaojun Liu, Jianming Sheng, Eric Camarda
Filed Under: SEG
One of the advantages of ocean bottom seismic data is combining hydrophone and vertical geophone data for ghost reflection attenuation. However, when the.

Noise strikes, but signal wins in Full Waveform Inversion

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November 11, 2020
Author: Yi Huang, Jian Mao, Hao Xing and Chris Chiang
Filed Under: SEG
Due to inherent benefits such as ultra-long offset, full azimuth (FAZ) illumination and low-frequency availability, a large multi-client sparse-node.

Multi-Channel dynamic matching full-waveform inversion

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November 10, 2020
Author: Jian Mao, James Sheng, Yi Huang, Feng Hao, and Faqi Liu
Filed Under: SEG
We propose a multi-channel dynamic matching full-waveform inversion (DMFWI) for a high-resolution velocity-model update, which focuses on solving.

Analysis and application of data-driven approaches for internal-multiple elimination

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November 10, 2020
Author: Chao Ma, Manhong Guo, Zhaojun Liu and James Sheng
Filed Under: SEG
Imaging artifacts caused by strong internal multiples can interfere with primary images, affecting structural interpretation and amplitude analysis. In.

An effective Q-compensation method for Fourier finite-difference wave-equation migration in tilted transversely isotropic media

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November 10, 2020
Author: Chen Tang, Jianming Sheng, Jian Mao, Yang He and Bin Wang
Filed Under: SEG
When a seismic wave propagates in the subsurface of the earth, its energy can be attenuated. This has a negative influence on both the amplitude and the.

ARLAS White Paper

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April 13, 2020
Author: Cenyen Ong, Sribharath Kainkaryam, Sathiya Namasivayam, Arvind Sharma
Filed Under: AI/ML
The primary objective of the Analytics Ready LAS (ARLAS) project is to produce complete well logs that will provide insight for different types of.

Replacing conventional brittleness indices determination with new attributes employing true hydrofracturing

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February 20, 2020
Author: Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
Filed Under: SEG

Addressing artifacts in PP-PS registration prior to performing joint impedance inversion

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January 21, 2020
Author: Chopra, Satinder Sharma, Ritesh Kumar Howell, Jim
Filed Under: The Leading Edge

Application of Image-domain LSRTM for Illumination Study and Optimal Survey Design

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September 19, 2019
Author: Zhuoquan Yuan, Yang He, Jean Ji, Vijay Singh, and Senren Liu
Filed Under: SEG

A case study: Enhanced 3D interpolation combined with 3D structural modeling from 2D seismic data

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September 16, 2019
Author: Taejong Kim, Tefera Eshete, Xuening Ma, Kenny Lambert, Ken Pavloske
Filed Under: SEG

FWI Salt Model Update Trials with Sparse Nodes

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September 16, 2019
Author: Yi Huang, Jian Mao, Chong Zeng, James Sheng
Filed Under: SEG

Ground roll removal using adaptive reflection mask function in Curvelet domain

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September 15, 2019
Author: Chenhao Yang, Zhaojun Liu, Jianming Sheng, Bin Wang
Filed Under: SEG

Fourier finite-difference wave-equation migration in tilted transversely isotropic media with an improved solution for coefficient estimation

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September 15, 2019
Author: Chen Tang, Yang He, Jian Mao, Jianming Sheng
Filed Under: SEG

Impact of adequate QC steps on seismic reservoir characterization

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September 15, 2019
Author: Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
Filed Under: SEG

Challenges and uncertainty in the seismic reservoir characterization of Bone Spring and Wolfcamp formations in the Delaware Basin using rock physics

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September 15, 2019
Author: Ritesh Kumar Sharma, Satinder Chopra, James Keay, Larry Lines
Filed Under: SEG

A robust workflow for performing joint impedance inversion with applications from North American Basins

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September 15, 2019
Author: Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
Filed Under: SEG

SaltSeg: A β-variational autoencoder constrained encoder-decoder architecture for accurate geologic interpretation

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September 15, 2019
Author: Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
Filed Under: SEG

Interpolation of regularly sampled prestack seismic data with self-supervised learning

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September 15, 2019
Author: Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
Filed Under: SEG

A practical data-driven method for applying amplitude inverse Q that preserves amplitude variations with offset

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September 15, 2019
Author: N. Ratnett, S. Baldock, H. Masoomzadeh
Filed Under: SEG

Shallow land PSDM velocity model building for unconventional plays

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September 15, 2019
Author: Perz, Mike Bruins, Candace Heim, Josef
Filed Under: SEG

Deblending of simultaneous and flip-flop shooting of sparse node long offset seismic for refraction FWI

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September 15, 2019
Author: Pal, Himadri Masoomzadeh, Hassan Roende, Henrik Liu, Zhaojun Bate, Duncan Mason, Chuck
Filed Under: SEG

Seismic data denoising with mathematical morphological filters

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September 15, 2019
Author: Liu, Z. Wheaton, D. Wang, B.
Filed Under: SEG

Benefits of tilted orthorhombic imaging on a FAZ dataset in the central Gulf of Mexico

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September 15, 2019
Author: Li Li, Dhananjay Tiwari, Xinyi Sun, Zhiqiang Guo
Filed Under: SEG

Towards smaller source volumes –an example from the Gulf of Mexico

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September 15, 2019
Author: Langhammer, Jan Bate, Duncan Roende, Henrik Ha, Roy
Filed Under: SEG

Phase only reflection full-waveform inversion for high resolution model update

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September 15, 2019
Author: Jian Mao, James Sheng, Guy Hilburn
Filed Under: SEG

Resolving Celtic Sea imaging anomalies through a multistage FWI and tomography workflow

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September 15, 2019
Author: Hilburn, Guy Hart, Matt Mao, Jian

Addressing some artifacts in the PP-PS registration prior to performing joint impedance inversion

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September 15, 2019
Author: Chopra, Satinder Sharma, Ritesh Kumar

Unsupervised machine learning facies classification in the Delaware Basin and its comparison with supervised Bayesian facies classification

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September 15, 2019
Author: Chopra, Satinder Marfurt, Kurt J. Sharma, Ritesh Kumar
Filed Under: SEG

Efforts at effective seismic reservoir characterization of Bone Spring and wolfcamp formations in the Delaware Basin

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September 15, 2019
Author: Chopra, Satinder Sharma, Ritesh Kumar Keay, James
Filed Under: SEG

A practical least-squares Kirchhoff Q migration workflow and its application to Celtic Sea imaging

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September 15, 2019
Author: Cheng Cheng*, Yang He, Zhaojun Liu, Bin Wang
Filed Under: SEG

Deblending of long-offset OBN data for velocity model building by sparse inversion of hyperboloidal components

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September 15, 2019
Author: Masoonzadeh, Hassan Baldock, Simon Liu, Zhaojun Roende, Henrik Mason, Chuck Pal, Himadri
Filed Under: SEG

Resolving Celtic Sea seismic anomalies

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August 3, 2019
Author: Hilburn, Guy Mao, Jian
Filed Under: Hart Energy

FWI Salt Model Update with Sparse Nodes: A Feasibility Test on OGO FAN Survey

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June 3, 2019
Author: Y. Huang, J. Mao*, J. Sheng
Filed Under: EAGE

Sub-Basalt Imaging in the Norwegian Sea Using Common-Offset RTM Tomography and Least Squares Reverse Time Migration

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June 3, 2019
Author: S. Baldock, T. Kim, T. Feng, Z. Guo, H. Bondeson, B. Kjølhamar
Filed Under: EAGE

Imaging Paleocene and Jurassic Prospects Within the Porcupine Basin, Ireland

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June 3, 2019
Author: M. Hart, E. Cho, S. Bhamber, A. Hulks, S. O’Keefe
Filed Under: EAGE

A Method for Applying Amplitude Inverse Q that Preserves Amplitude Variations with Offset

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June 3, 2019
Author: N. Ratnett, S. Baldock, H. Masoomzadeh

Mathematical Morphological Filters and Applications in Seismic Data Denoising

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June 3, 2019
Author: Z. Liu, D. Wheaton, V. Tyagi, B. Wang*
Filed Under: EAGE

Elastic Parameters Estimation Using Reservoir-Oriented Joint Migration Inversion for Norwegian Sea Field Data

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June 3, 2019
Author: A. Garg*, H. Masoomzadeh, S. Baldock, D.J. Verschuur
Filed Under: EAGE

Amplitude Preserved Least-squares RTM Gathers

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June 3, 2019
Author: Y. He, F. Hao, S. Dong, B. Wang*
Filed Under: EAGE

Deblending, Demultiple and High-Resolution Velocity Model Building Workflow Across the Senja Ridge

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June 3, 2019
Author: S. Stokes*, D. Manns, M. Romanenko, B. Kjølhamar, R. Myklebust, E. Henden
Filed Under: EAGE

High-Resolution Multistage FWI and Image-Guided Tomography to Resolve Ultraslow Gas Anomalies

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June 3, 2019
Author: Hilburn, Guy Mao, Jian
Filed Under: EAGE

Considerations for a Model Building Paradigm Shift in Gulf of Mexico

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June 3, 2019
Author: H. Roende, J. Sheng, Z. Liu, D. Bate
Filed Under: EAGE

Integration of Multibeam Bathymetry and Backscatter Data with 2-D Seismic Data

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May 2, 2019
Author: Chopra, Satinder Sharma, Ritesh Kumar Howell, Jim
Filed Under: AAPG Explorer

Multispectral, multiazimuth, and multioffset coherence attribute applications

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May 1, 2019
Author: Chopra, Satinder Marfurt, Kurt

A case study: Geologically guided tomography to improve image below the Aptian unconformity, offshore Gambia

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April 22, 2019
Author: Kim, Taejong

High-resolution tomographic inversion with image-guided preconditioning and offset dependent picking

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April 22, 2019
Author: Hilburn, Guy

Creating a 3D Image from 2D Data, a Case Study from Hera Subbasin, Offshore Indonesia

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April 11, 2019
Author: Notiyal, Subodh

Imaging beneath Basalts in the Norwegian Sea Using RTM Tomography and Least Squares RTM

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April 4, 2019
Author: Baldock, S., T. Kim, T. Feng, Z. Guo, C. Zeng, H. Bondeson, B. Kjollhamar, M. Hart
Filed Under: PESGB Filed Under: EAGE

Hybrid Tomography and Full Waveform Inversion Velocity Model Updating for Shallow Velocity Anomalies

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April 4, 2019
Author: Hilburn, G., J. Mao, J. Sheng, S. Baldock, M. Hart
Filed Under: PESGB Filed Under: EAGE

Imaging Paleocene and Jurassic Prospects within the Porcupine Basin, Ireland: A Case Study

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April 4, 2019
Author: Hart, M. S. Bamber, A. Hulks, S. O'Keefe, E. Cho, S. Baldock
Filed Under: PESGB Filed Under: EAGE

A FWI Velocity Model Building Workflow across the Senja Ridge in the Norwegian Barents Sea

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April 4, 2019
Author: Stokes, S., D., Manns, M. Romanenko, B. Kjolhamar, R. Myklebust, E. Henden
Filed Under: PESGB Filed Under: EAGE

Suprasalt model building using full-waveform inversion

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March 22, 2019
Author: TGS
The application of full-waveform inversion (FWI) to bring high resolution to the velocity model is becoming a standard approach in the velocity.

Suprasalt model building using full-waveform inversion

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March 4, 2019
Author: Tiwari, D., J. Mao, J. Sheng
Filed Under: The Leading Edge

Red Sea 2D Deep Tow Acquisition and Broadband Processing to Image Complex Subsalt Structures

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November 19, 2018
Author: Salem, A., W. Conway, E. T. Serra, B. Sayers, A. Checconi
Filed Under: SEG

MSGBC: Where is the next success?

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October 25, 2018
Author: TGS
Filed Under: GEO ExPro

Salt tectonic styles in the spreading basin: Yucatan, Offshore Mexico

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October 14, 2018
Author: TGS
The TGS Gigante project is comprised of 188,497 km of 2D seismic data acquired in 2016 and primarily covering the offshore Mexican side of the Gulf of.

Towards AVO Compliant Least-squares RTM Gathers

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August 28, 2018
Author: He,Yang Hao,Feng Dong, Shuqian Wang, Bin
Filed Under: SEG

Hybrid Approach for Least Squares Migration

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August 28, 2018
Author: Wang,Bin Zeng,Chong Dong,Shuqian
Filed Under: SEG

Refraction and reflection FWI for high-resolution velocity modeling in Mississippi Canyon

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August 28, 2018
Author: Tiwari, D., J. Mao, X. Ma

Deblending continuous records by sparse inversion of energetic and coherent surfaces

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August 28, 2018
Author: Masoomzadeh,Hassan Baldock,Simon Liu, Zhaojun
Filed Under: SEG

Geologically guided tomography to improve image below the Aptianunconformity, offshore Gambia

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August 28, 2018
Author: Kim, T., B. Soelistijo, G. Hilburn, P. Bhowmik, D. Armentrout, Z. Guo A. Nangarla
Filed Under: SEG

Orthorhombic model building using 5D regularized full azimuth land data

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August 28, 2018
Author: Gao,Wei Guo,Zhiqiang Ma,Xuening Rodriguez,Gary
Filed Under: SEG

SCOOP and STACK inversion case studies

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August 28, 2018
Author: Chopra, Satinder Sharma, Ritesh Kumar Keay, James
Filed Under: SEG

Seismic facies classification using some unsupervised machine learning methods

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August 28, 2018
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: SEG

Salt tectonic styles in the spreading basin: Yucatan, Offshore Mexico

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August 28, 2018
Author: Bhowmik,Purnima Hernandez,Rodolfo Rothe,Katarina
Filed Under: SEG

Quantitative Interpretation Efforts in Seismic Reservoir Characterization of Utica-Point Pleasant Shale

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July 23, 2018
Author: Chopra, Satinder Sharma, Ritesh Kumar Keay, James
Filed Under: URTeC

Coherence attribute applications on seismic data in various guises

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July 23, 2018
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: URTeC

Considerations in Azimuthal Processing and Velocity Inversion for Unconventional Plays

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July 23, 2018
Author: Perz, Mike Keller, William Kriechbaum, Victor
Filed Under: URTeC

Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building

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July 23, 2018
Author: Hilburn, G.,Pendharkar, Keller, W., Mott, R., Peinado, J., Jumper, A., Kriechbaum, V.

Deblending of Large 3D Surveys Acquired with Triple Sources in NW Europe

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June 11, 2018
Author: Baldock, Simon Masoomzadeh,Hassan Ratnett,Neil Liu,Zhaojun O’Keefe,Sorche Travis,Tom Drewell, Steve
Filed Under: EAGE

Technological Advancements in Broadband Processing – A Reprocessing Case History from the Barents Sea

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June 11, 2018
Author: Cox,Peter Bhamber,Sandeep Ditty, Chris
Filed Under: EAGE

Triple Source in Seismic Exploration – Experiences Offshore Norway

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June 11, 2018
Author: J. Langhammer, H. Bondeson, B. Kjølhamar, S. Baldock, H. Masoomzadeh, N. Ratnett
Filed Under: EAGE

Unfolding Marine Multiazimuth Data from the Gulf of Mexico

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June 11, 2018
Author: Roende, Henrik Hilburn, Guy Bate, Duncan
Filed Under: EAGE

Image Guided Full Waveform Inversion (IGFWI) Modelling of Shallow Channel Features in the Moray Firth

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June 11, 2018
Author: Salem, Azza Hart,Matt Baldock,Simon Gromotka,Jan Chen, Jing Sheng, James
Filed Under: EAGE

Exploring the Norwegian Atlantic Margin: Møre and Vøring Basins

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June 1, 2018
Author: BENT KJØLHAMAR, JAN LANGHAMMER, NICK WOODBURN, REIDUN MYKLEBUST and SIMON BALDOCK
Filed Under: GEO ExPro
By the end of 2018 TGS will have acquired a total of 45,000 km2 of high resolution 3D seismic across the Møre and Vøring Basins in the Norwegian Sea. This.

FWI Velocity Model Building Experiences

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February 22, 2018
Author: Hart, Matt J. Sheng,James Baldock,Simon Mao, Jian
Filed Under: EAGE

Liberia, A Fresh Approach

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October 1, 2017
Author: BEN SAYERS and ALEX BIRCH-HAWKINS, RUFUS TARNUE, GERRARD SPEAR, LAUREN MAYHEW,
Filed Under: GEO ExPro
Recent exploration in Liberia has not provided the commercial success we all want, with the most recent well, Mesurado-1 (drilled by ExxonMobil in Block.

A hybrid crossgather curvelet domain multiple elimination method and its application

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September 15, 2017
Author: Yongbo Zhai, Zhaojun Liu, James Sheng, Bin Wang, Josef Heim
Filed Under: SEG

Correlation of azimuthal velocity anisotropy and seismic inversion attributes to Austin Chalk production: a south central Texas case study

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September 15, 2017
Author: William Keller, Rene´ Mott, Austin Jumper, Heloise Lynn, Walt Lynn, Mike Perz

Enhanced Structure and Subsalt Imaging of the Perdido Fold Belt Offshore Mexico

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September 15, 2017
Author: Tefera Eshete, Katarina Rothe
Filed Under: SEG

The development and applicability of structurally conformable 2D to 3D interpolation

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September 15, 2017
Author: Sorche O’Keefe, Neil Ratnett, Nick Woodburn, Camilla Pedersen, Willl Bradbury, Manhong Guo, Wilfred Whiteside
Filed Under: SEG

4D Non Local regularization of 3D seismic data using block adaptive POCS

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September 15, 2017
Author: Satyakee Sen, James Sheng, Zhaojun Liu Bin Wang,
Filed Under: SEG

Shallow high-amplitude seismic anomalies characterization in the Hoop Fault Complex, Barents Sea

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September 15, 2017
Author: Satinder Chopra, Ritesh Sharma, Graziella Kirtland Grech, Bent Erlend Kjølhamar
Filed Under: SEG

Seismic reservoir characterization of Utica-Point Pleasant shale with efforts at quantitative interpretation– a case study

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September 15, 2017
Author: Satinder Chopra, Ritesh Kumar Sharma, Hossein Nemati, James Keay
Filed Under: SEG

Coherence attribute applications on seismic data in various guises

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September 15, 2017
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: SEG

High-resolution image-guided tomography and Q-tomography solution for improved depth imaging for an OBC survey

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September 15, 2017
Author: Robert Shank, Sandip Chattopadhyay, Gary Rodriguez, Tefera Eshete, Guy Hilburn, Yang He, Connie VanSchuyver
Filed Under: SEG

Integration of geomechanical and mineralogical data for fracability evaluation in Utica shale play

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September 15, 2017
Author: Ritesh Kumar Sharma, Satinder Chopra, James Keay, Hossein Nemati, Larry Lines
Filed Under: SEG

A novel workflow for predicting TOC in a Utica play

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September 15, 2017
Author: Ritesh Kumar Sharma, Satinder Chopra, Larry Lines
Filed Under: SEG

An innovative way of computing reliable density from impedance inversion methods

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September 15, 2017
Author: Ritesh Kumar Sharma, Satinder Chopra, Larry Lines
Filed Under: SEG

SDRs or presalt synrift graben? – Insight from an integrated case study of presalt reflectors in Campos Basin, offshore Brazil

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September 15, 2017
Author: Quincy Zhang, Gary Rodriguez, Hao Xun, Duncan Bate, James Keay, Michael R. Hudec, Jonathan Watson
Filed Under: SEG

Chasing anisotropy in the Austin Chalk and Eagle Ford shale formations: azimuthal processing challenges and considerations

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September 15, 2017
Author: Peng Cheng, Mike Perz, Femi Ogunsuyi, Frank Meng, Xinxiang Li
Filed Under: SEG

Target-oriented parameters for curvature of the Falher F tight sandstone of Alberta, Canada

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September 15, 2017
Author: Lee Hunt, Bahaa Beshry, Satinder Chopra, Cole Webster
Filed Under: SEG

Improved salt and subsalt model with common offset RTM tomography: A case history in deep water, Gulf of Mexico

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September 15, 2017
Author: Jianshun Sheng, Seung Yoo, Cristina Reta-Tang, Gary Rodriguez
Filed Under: SEG

Integrated Multiple Attenuation Across the Shelf Edge – a Colombian Caribbean Case Study

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September 15, 2017
Author: E.J. Wiarda, Walter Conway, P. Pappano, Cheng Zhan, Dan Wheaton, S. Nistala, Raheel Malik, and Simon Baldock
Filed Under: SEG

Fracture detection and reservoir characterization through high resolution orthorhombic tomography for unconventional plays

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September 10, 2017
Author: Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, and Victor Kreichbaum

Salt interpretation for velocity model building using long offset multi-WAZ data – improving the subsalt image in Gulf of Mexico

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September 2, 2017
Author: Chaikin, D., H. Roende, J. Kegel

Joint multiple predictions in SRME with combined Orthogonal WAZ surveys

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September 1, 2017
Author: Nangarla, A., S. Laha, N. Hokanson, M. Guo, S. Baldock
Filed Under: SEG

Production Forecasting in the Scoop/Stack Play

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September 1, 2017
Author: Ted Mirenda and James Keay
Oklahoma is one of the most mature oil- and gas-producing states, yet the industry continues to innovate and make headlines with new investment.

A guide to least-squares reverse time migration for subsalt imaging:Challenges and solutions

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August 1, 2017
Author: Wang,Bin Zeng,Chong Dong,Shuqian
Filed Under: SEG

Characterization of Shallow High Amplitude Seismic Anomalies in the Hoop Fault Complex, Barents Sea

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June 15, 2017
Author: Satinder Chopra, Ritesh Sharma, Graziella Kirtland Grech, Bent Erlend Kjølhamar

Imaging of Multiples and its Application on Single Sensor Data

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June 14, 2017
Author: Jian Mao, Simon N. Baldock, James Sheng
Filed Under: EAGE

Multidomain Denoise - A Robust and Efficient Method of Suppressing Incoherent Noise

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June 14, 2017
Author: Hassan Masoomzadeh, Neil Ratnett, Tom Travis, and Azza Salem
Filed Under: EAGE

A Robust Multistage Full Waveform Inversion and Its Application

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June 13, 2017
Author: Jian Mao, James Sheng, Matt Hart, Taejong Kim
Filed Under: EAGE

Continuous Coverage of Recent High Resolution Seismic and Magnetic Data gives New Insight into the Early Development of the Gulf of Mexico

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June 13, 2017
Author: Ian Deighton, Felicia Winter
Filed Under: EAGE

FWI with Scaled-Sobolev Preconditioning Applied to Short-Offset Vibroseis Field Data

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June 13, 2017
Author: Consolvo, B.P., M.A.H. Zuberi, R.G. Pratt, P.W. Cary
Filed Under: EAGE

Dual WAZ Processing and Orthorhombic Imaging - A Case Study in Mississippi Canyon, Gulf of Mexico

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June 12, 2017
Author: Zhiqiang Guo, Yang He, Guy Hilburn, Dhananjay Tiwari, Gary Rodriguez
Filed Under: EAGE

Reduction of depth uncertainties using common offset RTM (COR) Gathers

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June 12, 2017
Author: Senren Liu, Gary Rodriguez, Feng Hao
Filed Under: SEG

Broadband Imaging in the Barents Sea - Impact of 3D Survey Design and Data Processing on Jurassic Lead Quality

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June 12, 2017
Author: Salem, A., M. Romanenko, B. Kjolhamar
Filed Under: EAGE

Improved Q Estimation and Application in the Time Domain with Broadband Seismic Data from the North Sea

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June 12, 2017
Author: Hardwick, A.J., D. Woods, H. Masoomzadeh, R. Clark

Evolution of deghostingprocess for single sensor streamer data from 2D to 3D

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May 28, 2017
Author: Zhigang Zhang, Hassan Masoomzadeh, Bin Wang

A presalt graben system near the COB imaged by high quality 3D seismic data in Campos Basin, Offshore Brazil

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May 28, 2017
Author: Quincy Zhang, Michael R. Hudec, Gary Rodriguez

Volumetric fault image enhancement—Some applications

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May 28, 2017
Author: Satinder Chopra, Kurt J. Marfurt

Uncertainty in orthorhombic model building: Analysis, mitigation, and validation

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February 1, 2017
Author: Guy Hilburn, Yang He, and Bin Wang
Filed Under: The Leading Edge

High-resolution model building with multistage full-waveform inversion for narrow-azimuth acquisition data

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December 1, 2016
Author: Jian Mao, James Sheng, Matt Hart, Taejong Kim
Filed Under: The Leading Edge

Seismic reservoir characterization of Duvernay shale with quantitative interpretation and induced seismicity considerations

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September 15, 2016
Author: Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
Filed Under: SEG

Understanding the seismic disorder attribute and its applications

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September 15, 2016
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: SEG

Using buried receivers for multicomponent, time-lapse heavy oil imaging

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September 15, 2016
Author: Peter Vermeulen, Guoping Li, Hugo Alvarez, Peter Cary, Gary James
Filed Under: SEG

Characterizing a Cardium waterflood via 3C3D land surface seismic: the Washout Creek experience

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September 15, 2016
Author: Mike Perz, Xinxiang Li, Mohammad Nemati, Ritesh Kumar Sharma, Satinder Chopra, Peter Cary, Wendy Ohlhauser, Kimberly Pike, Brian Creaser
Filed Under: SEG

Broadband processing of 3D towed streamer data: a critical analysis of 2D and 3D plane wave decomposition

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September 15, 2016
Author: Hassan Masoomzadeh, Anthony Hardwick
Filed Under: SEG

Reducing subsalt velocity uncertainties using common offset RTM gathers (COR)

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September 15, 2016
Author: Gary Rodriguez, Senren Liu
Filed Under: SEG

Understanding the structure, extent and potential source rocks of the syn-rift in Madagascar

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September 15, 2016
Author: Felicia Winter, Erika Tibocha, Honorata Rutkowska, Alex Birch-Hawkins, Roel Dirkx

Identification of sweet spots in shale reservoir formations

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September 1, 2016
Author: Chopra, Satinder Sharma, Ritesh Kumar
Filed Under: First Break

Clari-Fi™ Broadband Processed 2D Seismic in Portugal and the Mid-North Sea High

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September 1, 2016
Author: SINDRE JANSEN, WILL BRADBURY and BENT ERLEND KJØLHAMAR
Filed Under: GEO ExPro
Clari-Fi™ is a broadband processing package which includes denoising, deghosting, designature and inverse-Q. A multi-domain denoising process attenuates.

Volumetric Fault Enhancement Applications

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August 15, 2016
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: AAPG Explorer

Adaptive Windowed Deghosting - Applications to FAZ Acquisition

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June 1, 2016
Author: Zhigang Zhang, Zhaohong Wu, Bin Wang, Jean Ji
Filed Under: EAGE

Insights into the Tectonic Evolution andProspectivity of Madagascar Offshore Basins

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June 1, 2016
Author: Roel Dirkx, Felicia Winter, S. Musa, Richard Cooke, Ben Sayers, Jennifer Halliday, Erika Tibocha
Filed Under: EAGE

Adaptive Least-squares RTM for Subsalt Imaging

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June 1, 2016
Author: Chong Zeng, Shuqian Dong, Bin Wang, Zhigang Zhang
Filed Under: EAGE

Demultiple of High Resolution P-cable Data in theNorwegian Barents Sea - An Iterative Approach

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May 30, 2016
Author: Anthony J. Hardwick, Sindre Jansen, Bent Erlend Kjølhamar
Filed Under: EAGE

Building more robust low-frequency models for seismic impedance inversion

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May 28, 2016
Author: Amit Kumar Ray, Satinder Chopra
Filed Under: First Break

Adaptive least-squares RTM with applications to subsalt imaging

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March 5, 2016
Author: Chong Zeng, Shuqian Dong, Bin Wang
Filed Under: The Leading Edge

New insight into Gulf of Mexico Well Success

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October 1, 2015
Author: TGS
By analyzing the reasons for success and failure of a given well, we can learn more about the hydrocarbon system in which the well was drilled and improve.

Deepwater Kwanza Basin. A Prospective Pre-Salt Province?

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October 1, 2015
Author: Cian O’Reilly, Dario Chisari, James Clarke, Sadiqah Musa, Dr. Jennifer Halliday, Ian Deighton, Erika Tibocha and Paul Chandler
Filed Under: GEO ExPro
TGS acquired a high resolution multi-client 3D seismic survey over Blocks 35, 36 and 37 in the Kwanza Basin offshore Angola. A 3D Kirchhoff and Reverse.

The Seismic Wow Factor- A precursor To Unlocking Offshore Mexico

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October 1, 2015
Author: Brad Torry
Filed Under: Hart Energy
Volatile hydrocarbon prices are driving major changes in the industry. Companies are establishing new economic baselines and new criteria for evaluating.

Time variant de-ghosting and its applications in WAZ data

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September 10, 2015
Author: Zhigang Zhang, Zhaohong Wu, Bin Wang, Jean Ji
Filed Under: SEG

Joint PP/PS tomography with Dynamic Warping

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September 10, 2015
Author: Yang He, Guy Hilburn, Francis Sherrill
Filed Under: SEG

Enhancing interpretability of seismic data with spectral decomposition phase components

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September 10, 2015
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: SEG

Choice of mother wavelets in CWT spectral decomposition

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September 10, 2015
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: SEG

Reducing uncertainty in characterization of Vaca Mureta shale with post-stack seismic data

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September 10, 2015
Author: Ritesh Kumar Sharma, Satinder Chopra, Luis Vernengo, Eduardo Jorge Trinchero, Claudio Sylwan
Filed Under: SEG

Identification of thin sweet spots in the Duvernay Formation of north central Alberta

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September 10, 2015
Author: Chopra, Satinder Sharma, Ritesh Kumar
Filed Under: SEG

Estimation of density from seismic data without long offsets – a novel approach.

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September 10, 2015
Author: Chopra, Satinder Sharma, Ritesh Kumar
Filed Under: SEG

Shallow water surface related multiple elimination: a case study from North Sea

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September 10, 2015
Author: Raheel Malik, Simon Baldock, Becky Miller, Satyakee Sen, Zhaojun Liu
Filed Under: SEG

Directional designature without near-field hydrophone recordings

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September 10, 2015
Author: Peter Scholtz, Hassan Masoomzadeh, Roy Camp
Filed Under: SEG

Unbiased surface-consistent scalar estimation by crosscorrelation

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September 10, 2015
Author: Nirupama Nagarajappa, Peter Cary
Filed Under: SEG

High resolution velocity model building over the Hoop Fault Complex.

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September 10, 2015
Author: Matt J. Hart, O.A. Adewumi, Carl Lang, Guy Hilburn, Gary Rodriguez
Filed Under: SEG

Prestack and poststack wave-equation based demultiple: a case study of its impact on subsalt interpretation

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September 10, 2015
Author: Gregg Barker, August Lau, Jian Mao, Dhananjay Tiwari, Satyakee Sen
Filed Under: SEG

High resolution tilted-orthorhombic tomographic inversion to improve velocity modeling and imaging: a case study of its impact on subsalt

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September 10, 2015
Author: Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
Filed Under: SEG

Adaptive least-squares RTM and application to Freedom WAZ subsalt imaging

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September 10, 2015
Author: Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
Filed Under: SEG

Deblending of continuously recorded OBN data by subtraction integrated with a median filter

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September 10, 2015
Author: Cheng Zhan, Raheel Malik, Jim Specht, Zhaojun Liu, Davide Teixeira
Filed Under: SEG

Accounting for sea surface variation in deghosting – a novel approach applied to a 3D dataset offshore west Africa

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September 10, 2015
Author: Anthony Hardwick, Patrick Charron, Hassan Masoomzadeh, Adeola Aiyepeku, Peter Cox, Sampad Laha
Filed Under: SEG

More robust methods of low-frequency model building for seismic impedance inversion

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September 10, 2015
Author: Amit Kumar Ray, Satinder Chopra
Filed Under: SEG

Gulf of Mexico: Post Well Analysis

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September 1, 2015
Author: Alessio Checconi, Peter Conn, David Little, Edward Smith, James Stockley, Erika Tibocha;
Filed Under: GEO ExPro
 In order to assess the four key risk factors for exploration – reservoir, trap, seal, and charge (source and migration) – an interdisciplinary approach.

Shallow Water Multiple Elimination (SWME) onBroadband Data

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June 2, 2015
Author: Yongbo Zhai, Satyakee Sen, Zhaojun Liu, James Sheng, Bin Wang, Chong Zhan, Neil Hokanson, Sampad Laha, Lingxiao Zhang
Filed Under: EAGE

Broadband Processing of Variable-depthStreamer Data

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June 2, 2015
Author: Hassan Masoomzadeh, Anthony Hardwick, Simon Baldock
Filed Under: EAGE

Offset Dependent Picking and Image GuidedTomographic Modelling of Velocity Variationsover the Hoop Fault Complex

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June 2, 2015
Author: Matt J. Hart, O.A. Adewumi, Carl Lang, Guy Hilburn
Filed Under: EAGE

5D Interpolation adds value at the drill bit for a Texas 3D

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June 2, 2015
Author: K. Rene’ Mott, William Keller, Mike Perz
Filed Under: SEG

Triple-Source Simultaneous Shooting (TS3), AFuture for Higher Density Seismic?

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June 2, 2015
Author: Jan Langhammer, Pete Bennion
Filed Under: EAGE

Broadband Processing of P-Cable Data in theBarents Sea

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June 2, 2015
Author: Neil D. Ratnett, Peter Cox, Gboyega Adeloye, Tom Travis
Filed Under: EAGE

The Hoop Area: New testing ground for geophysical technologies

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May 1, 2015
Author: Bent Kjølhamar
Filed Under: GEO ExPro
The Hoop Basin was named after Der Hoop, a ship belonging to one of the great Arctic explorers, William Barents. Meaning ’hope’ in his native Dutch, this.

Is curvature overrated? No, it depends on the geology

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February 1, 2015
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: First Break

Advances in Seismic Rejuvenate Shelf

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February 1, 2015
Author: Brad Torry
As 2015 begins amid uncertainty about commodity prices, one region in the Gulf of Mexico bears an interesting revival that should survive these prices.

Sobel Filtering Brings Edges Into Sharp Focus

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January 1, 2015
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: AAPG Explorer

Seafloor Sampling of Frontier Basins forDetection of Active Hydrocarbon Systems andStratigraphic Tie

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November 24, 2014
Author: S. Polteau, S. Planke, A. Mazzini, Reidun Myklebust
Filed Under: EAGE

An application of FWI to deep water Hernando NAZ streamer data in Gulf of Mexico

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October 2, 2014
Author: Kwangjin Yoon, Ioan Vlad, Peyman Moghaddam, Jian Mao, Jianming Sheng
Filed Under: SEG

Application of Gabor transform to amplitude spectrum matching for merging seismic surveys

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October 2, 2014
Author: Jun Zhou, Jun Sun, Xuening Ma
Filed Under: SEG

TTI DIT for dirty salt inversion in the Mississippi Canyon area, Gulf of Mexico

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October 2, 2014
Author: John DeLaughter, Michael Harbin, Dawn Herrington, Andrey A. Ortega, Seung Yoo, Taejong Kim, Will Whiteside, Cristina Reta-Tang
Filed Under: SEG

3D Fast illumination analysis for arbitrary acquisition system using plane waves

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October 2, 2014
Author: Jian Mao, James Sheng, Bin Wang, Connie VanSchuyver
Filed Under: SEG

High-resolution tomographic inversion with image-guided preconditioning and offset-dependent picking

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October 2, 2014
Author: Guy Hilburn, Yang He, Zengjia Yan, Francis Sherrill
Filed Under: SEG

Rejuvenation of regional 2D data in the Campos Basin, offshore Brazil through broadband processing and TTI imaging

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October 2, 2014
Author: Cristina Reta-Tang, Walter Conway, James Keay, Diane Yang, Xinyi Sun
Filed Under: SEG

Converted-wave prestack time migration with a new approximate migration weight

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October 2, 2014
Author: Chuck Ursenbach, Peter Cary
Filed Under: SEG

Broadband least-squares reverse time migration for complex structure imaging

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October 2, 2014
Author: Chong Zeng, Shuqian Dong, Jian Mao, Bin Wang
Filed Under: SEG

Broadband processing in the Norwegian Barents Sea – practical aspects of deghosting in a challenging marine environment

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October 2, 2014
Author: Anthony Hardwick, Hassan Masoomzadeh, Jan Gromotka, Peter Cox, Rachel Gilbert
Filed Under: SEG

Hydrocarbon-bearing dolomite reservoir characterization: A case study from eastern Canada

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October 2, 2014
Author: Amit Kumar Ray, Ritesh Kumar Sharm,Satinder Chopra
Filed Under: SEG

Enhanced adaptive subtraction method for simultaneous source separation

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October 2, 2014
Author: Zhaojun Liu, Bin Wang, Jim Specht, Jeffery Sposato, Yongbo Zhai
Filed Under: SEG

Final Laser-Beam Q-Migration

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October 2, 2014
Author: Xiang Xiao, Feng Hao, Christopher Egger, Bin Wang, Fangxiang Jiao, Xinling Wang
Filed Under: SEG

5D data regularization using enhanced antileakage Fourier transform

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October 2, 2014
Author: Wilfred Whiteside, Manhong Guo, Jun Sun, Bin Wang
Filed Under: SEG

Improved imaging beneath the Cotton Valley formation through offset-dependent RMO picking and high-resolution tomography in the Lloyd Ricge area in the Gulf of Mexico

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October 2, 2014
Author: Taejong Kim, Francis Sherrill, Guy Hilburn, Yang He, Cristina Reta-Tang
Filed Under: SEG

Reweighted thresholding and orthogonal projections for simultaneous source separation

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October 2, 2014
Author: Satyakee Sen, James Sheng, Zhaojun Liu Bin Wang,
Filed Under: SEG

Seismic facies analysis using generative topographic mapping

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October 2, 2014
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: SEG

Seismic discontinuity attributes and Sobel filtering

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October 2, 2014
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: SEG

Churning seismic attributes with principal component analysis

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October 2, 2014
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: SEG

A finite-difference method for orthorhombic reverse time migration

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October 2, 2014
Author: Sang Suh
Filed Under: SEG

Seismic characterization of Montney shale formation using Passey’s approach

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October 2, 2014
Author: Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
Filed Under: SEG

Characterization of the dolomite reservoirs with the help of photoelectric index volume

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October 2, 2014
Author: Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
Filed Under: SEG

Hoop Basin: Drilling success and playground for new exploration methods

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September 1, 2014
Author: BENT KJØLHAMAR, CHRISTOPHER SÆBØ SERCK, CAMILLA BROCH PEDERSEN, REIDUN MYKLEBUST
Filed Under: GEO ExPro
The Hoop Fault Complex area of the Barents Sea has seen great exploration success lately. The area offers a condensed Paleozoic and Mesozoic succession.

MaxG Basin Temperature Modelling Using Bottom Hole Temperature Datasets

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August 5, 2014
Author: Ian Deighton, Erika Tibocha, Pete Dotsey
Filed Under: URTeC

Full Waveform Inversion on Jackdaw OceanBottom Nodes Data in North Sea

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June 19, 2014
Author: K. Yoon, P. Moghaddam, I. Vlad, M. Warner, J. Sheng
Filed Under: EAGE

Broadband Processing of Slant Streamer Datafrom Offshore Tunisia

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June 19, 2014
Author: H. Masoomzadeh, A. Hardwick
Filed Under: EAGE

High-resolution Tomography Using Offset-dependent Picking and Inversion Conditioned byImage-guided Interpolation

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June 19, 2014
Author: Yang He, Guy Hilburn, Francis Sherrill

Deghosted Least-squares RTM - Image DomainBroadband Solution for Complex Structures

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June 19, 2014
Author: Shuqian Dong, Chong Zeng, Hassan Masoomzadeh, Bin Wang
Filed Under: EAGE

Rock-physics Foundation for AVO Analysis

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June 9, 2014
Author: John P. Castagna, Satinder Chopra, Firas Al-Jarrah
Filed Under: SEG

Image-guided tomography: structure conforming inversion for complex overburden

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June 9, 2014
Author: Guy Hilburn, Yang He, Francis Sherrill, Taejong Kim, Zengjia Yan

Eastern Canada has plenty to offer

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May 1, 2014
Author: Brad Torry and Steve Whidden
Exploration off eastern Canada has become somewhat muted. But a recent renaissance of drilling and seismic activity has unearthed new reserves, new basins.

The impact of a quick 4D seismic survey and pro-cessing over the Halfdan Field, Danish North Sea

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April 4, 2014
Author: M.A. Calvert, H.H. Roende, I.H. Herbert1 J. Zaske, P. Hickman, U. Micksch
Filed Under: First Break

Seismic discontinuity attributes and Sobel filtering

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April 1, 2014
Author: Satinder Chopra, Rajive Kumar, Kurt J. Marfurt

Early basin insights and AVO supported leads from new long offset 2D seismic data, Labrador Sea, Canada

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March 1, 2014
Author: Richard Wright, James Carter, Deric Cameron, Tom Neugebauer, Jerry Witney, and Daniel Hughes
The first regionally extensive long offset 2D seismic program has been acquired in the slope and deepwater regions of the Labrador Sea, offshore Canada..

New insights on the Alaskan Chukchi Sea

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March 1, 2014
Author: Brad Torry, Thane Strandberg, Abu Chowdhury, Jason Kegel, James Keay
Filed Under: GEO ExPro
operationally challenging, environmentally sensitive and seasonally limited; the vast bounds of the underexplored basins of the arctic region remain of.

Observing fracture lineaments with Euler curvature

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February 5, 2014
Author: Satinder Chopra, Kurt J. Marfurt
Filed Under: The Leading Edge

Improving salt boundary imaging using an RTM inverse scattering imaging condition

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October 9, 2013
Author: Sang Suh, Bing Wang
Filed Under: SEG

Implementation of Kirchhoff prestack depth migration on GPU

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October 9, 2013
Author: Chopra, Satinder Sharma, Ritesh Kumar
Filed Under: SEG

Enhancement of seismic data quality and interpretation for mapping base Zubair sands of Southeast Kuwait

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October 9, 2013
Author: Rajive Kumar, Karam, M. Hafez, Anandan Mudavakkat, Aisha Y. Al-Ghareeb, Thekriat Hussain, Ritesh K. Sharma, Satinder Chopra
Filed Under: SEG

Orthorhombic PSDM processing, a case history in Mississippi Canyon, Gulf of Mexico

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October 9, 2013
Author: Yang He, Adam Gersztenkorn, Guy Hilburn, Sherry Yang, Bin Wang
Filed Under: SEG

Questioning the basics of surface-consistent scaling

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October 9, 2013
Author: Nirupama Nagarajappa, Peter Cary
Filed Under: SEG

3C receiver orientation estimation by stack power optimization of reflected PS data

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October 9, 2013
Author: Nirupama Nagarajappa, Peter Cary, Chuck Ursenbach
Filed Under: SEG

Angle domain illumination analysis along a target horizon

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October 9, 2013
Author: Jian Mao, Sang Suh, Bin Wang
Filed Under: SEG

Broadband processing of linear streamer data

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October 9, 2013
Author: Hassan Masoomzadeh, Nick Woodburn, Anthony Hardwick
Filed Under: SEG

Unconventional reservoir characterization using conventional tools

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October 9, 2013
Author: Chopra, Satinder Sharma, Ritesh Kumar
Filed Under: SEG

Joint Deconvolution with Hybrid Norm and Its Applications to Flat Cable Images and Pre-migration Data

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October 9, 2013
Author: Zhigang Zhang, Jean Ji, Bin Wang
Filed Under: SEG

3D imaging from 2D seismic data, an enhanced methodology

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October 9, 2013
Author: Wilfred Whiteside, Bin Wang, Helge Bondeson, Zhiming Li
Filed Under: SEG

A case study for salt model building using CFP full azimuth data

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October 9, 2013
Author: W. Gao, Z. Guo, M. Guo, Q. Zhang, S. Hightower, G. Cloudy Jr., Z. Li
Filed Under: SEG

Anisotropic model building with structurally constrained tomography inversion: A case studyfrom the Angola Basin

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October 9, 2013
Author: Tefera Eshete, Yang He, Xinyi Sun
Filed Under: SEG

Pre conditioning seis mic data with 5D inte rpolation for computing geome tric attributes

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October 9, 2013
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: SEG

Seismic depth imaging from high to low signal: a case history

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October 9, 2013
Author: August Lau, Dhananjay Tiwari, Zhiqiang Guo, Gary Rodriguez, Jean Ji

A 3D illumination study to investigate fault shadow effects over the Hoop Fault Complex

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October 9, 2013
Author: Anthony Hardwick, Litty Rajesh
Filed Under: SEG

Danish sector: Insight into mature and deeper plays

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October 1, 2013
Author: Will Bradbury, Steve Drewell, Gulnara Hickman
Filed Under: GEO ExPro
TGS' new regional 2D long-offset seismic survey of the Danish sector employs innovative processing techniques already proven in the North Sea and around.

Implementation of Kirchhoff prestack depth migration on GPU

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September 17, 2013
Author: TGS
Filed Under: SEG
The massively parallel nature of Graphics Processing Units has made them an attractive platform for some computationally intensive algorithms. This.

Enhancement of seismic data quality and interpretation for mapping base Zubair sands of Southeast Kuwait

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September 16, 2013
Author: TGS
Filed Under: SEG
The Lower Zubair sand reservoirs have produced or shown oil in several but not all of the wells drilled in western and southeastern Kuwait. Evidence from.

Broadband processing of linear streamer data

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September 15, 2013
Author: TGS
Filed Under: SEG
Conventional marine seismic data is affected by the interference from ghosts on both the source and receiver sides. The natural diversity provided by.

Anisotropic model building with structurally constrained tomography inversion: A case study from the Angola Basin

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September 14, 2013
Author: TGS
Filed Under: SEG
The Angola basin is characterized by steeply dipping sediments with rapid changes in dip direction particularly in mini-basins between salt bodies. This.

Angle domain illumination analysis along a target horizon

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September 12, 2013
Author: TGS
Filed Under: SEG
We develop an efficient scheme of illumination analysis along a target horizon. With this scheme, we can calculate the Directional Illumination (DI) from.

A case study for salt model building using CFP full azimuth data

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September 10, 2013
Author: TGS
Filed Under: SEG
We present a case study of the salt model building for a Gulf of Mexico area with a full azimuth (FAZ) dataset that was created by merging two orthogonal.

3D imaging from 2D seismic data, an enhanced methodology

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September 8, 2013
Author: TGS
Filed Under: SEG
We have developed an enhanced methodology for creating a 3D seismic migration volume from a set of 2D seismic lines. The key challenge is to interpolate.

3C receiver orientation estimation by stack power optimization of reflected PS data

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September 2, 2013
Author: TGS
Filed Under: SEG
In land multi-component (MC) data processing, the orientation of each receiver's horizontal components in the field (H1 and H2) is seldom known.

Increasing the bandwidth of marine seismic data - broadband

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September 1, 2013
Author: TGS
Broadband seismic data is data that is rich in both low and high frequencies. High frequencies increase temporal resolution, and low frequencies reduce.

The value of PRM in enabling high-payback IOR Programs

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September 1, 2013
Author: TGS
Innovative uses of seabed seismic technology will help operators glean billions from new and mature fields. High-potential returns with low risk and lower.

Current workflows for shale gas reservoir characterization

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August 14, 2013
Author: Arcis Seismic Solutions
n the last decade and more, shale gas resources have emerged as a viable energy source. This became possible after the Mississippian Barnett Shale in the.

Current workflows for shale gas reservoir characterization

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August 12, 2013
Author: Chopra, Satinder Marfurt, Kurt
Filed Under: URTeC

Key processing techniques for pre-salt plays

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August 2, 2013
Author: TGS
Abacia de Campos do Brasil é uma das regiões offshore mais ativas e prósperas de petróleo e gás no mundo, com o maior número de descobertas de petróleo e.

Enhanced 3D Imaging from 2D Seismic Data andits Application to Surveys in the North Sea

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June 13, 2013
Author: Wilfred Whiteside, Bin Wang, Helge Bondeson, Zhiming Li
Filed Under: EAGE

Seabed Sampling for Stratigraphy and Seep Studies Offshore Greenland and Norway

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June 13, 2013
Author: S. Polteau , S. Planke, R. Myklebust, Gulnara Hickman
Filed Under: EAGE

Practical Aspects of Least-squares Reverse Time Migration

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June 13, 2013
Author: S. Dong, S. Suh, B. Wang
Filed Under: EAGE

Broadband Processing of Conventional StreamerData - Optimized De-Ghosting in the Tau-P Domain

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June 13, 2013
Author: Hassan Masoomzadeh, Nick Woodburn
Filed Under: EAGE

Seabed Sampling for Stratigraphy and Seep Studies Offshore Greenland and Norway

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June 12, 2013
Author: TGS
Gravity coring and dredging has been used to obtain extensive seabed sampling of escarpments and potential hydrocarbon seep sites offshore Greenland in.

Orthorhombic Imaging for Orthogonal WideAzimuth Surveys in Mississippi Canyon, Gulf ofMexico

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June 11, 2013
Author: Yang He, A. Gersztenkorn, S. Yang, Bin Wang, Xiang Xiao
Filed Under: EAGE

Practical aspects of least-squares reverse time migration

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June 8, 2013
Author: TGS
Conventional migration tools have been implemented by the application of adjoint operators. Under simple circumstances this approach provides satisfactory.

Orthorhombic imaging for orthogonal wide azimuth surveys in Mississippi Canyon, Gulf of Mexico

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June 6, 2013
Author: TGS
Wide azimuth (WAZ) has been established as an indispensable seismic acquisition and processing methodology for exploration and development objectives..

Enhanced 3D Imaging from 2D Seismic Data and its Application to Surveys in the North Sea

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June 5, 2013
Author: TGS
In some of the newly explored areas around the world, 3D seismic surveys may not be available. Assessment of the exploration potential and in some cases,.

Broadband Processing of Conventional Streamer Data - Optimized De-Ghosting in the Tau-P Domain

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June 3, 2013
Author: TGS
The frequency content and the temporal resolution of marine seismic data acquired using conventional constant-depth streamer is affected by the.

A 3D Illumination Study to Investigate Fault Shadow Effects over the Hoop Fault Complex

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June 2, 2013
Author: TGS
Seismic exploration of the Norwegian Barents Sea began over thirty years ago, but the acquisition of 3-D surveys have only commenced in recent years. The.

Orthorhombic Imaging for Orthogonal Wide Azimuth Surveys in Mississippi Canyon, Gulf of Mexico

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May 13, 2013
Author: Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang

Seismic attribute expression of differential compaction

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May 13, 2013
Author: Chopra, Satinder Marfurt, Kurt

Shale gas reservoir characterization workflows

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May 13, 2013
Author: Chopra, Satinder Marfurt, Kurt

Poisson Impedance : A promising tool for determination of sand quality.

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May 13, 2013
Author: Chopra, Satinder Sharma, Ritesh Kumar

New Attribute for determination of lithology and brittleness

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May 13, 2013
Author: Chopra, Satinder Sharma, Ritesh Kumar

Fracture detection via azimuthal analysis of seismic data: snake oil orsilver bullet?

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May 13, 2013
Author: Mike Perz, Peter Cary, Xinxiang Li, Satinder Chopra

Enabling high payback IOR: Value creation through PRM

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April 1, 2013
Author: MARTIN BETT
Innovative uses of seabed seismic technology can help operators glean billions from new and mature fields. High potential returns with low risk and lower.

Good guidance

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April 1, 2013
Author: TGS
Advances in technology have allowed for old geophysical records to be put online, enabling technologically adept operators to conduct geological analysis.

Increasing the bandwidth of marine seismic data

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April 1, 2013
Author: Simon Baldock
Marine seismic data acquired with an airgun source and recorded using pressure sensors towed at a constant depth has been the standard for offshore oil.

How the seismic map is changing

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February 1, 2013
Author: Andrew McBarnet
Filed Under: Offshore Engineer
Andrew McBarnet assesses the state of the marine seismic business and where it is going in 2013.

New approach to basin formation temperature modeling

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December 1, 2012
Author: Pete Dotsey
Filed Under: First Break
Basin formation temperatures are an important consideration in oil and gas exploration and development because temperature controls the rates of chemical.

Pre-processing improvements for enhanced PSTM and TTI PSDM images in the santos basin: A case history

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December 1, 2012
Author: Kev Pavloske, Jana Beyoglu, Tefera Eshete and Simon Baldock
The Santos Basin, offshore Brazil, is a geophysically challenging area to image due to the presence of evaporite sequence layers, carbonate layers and.

The value of PRM in enabling high payback IOR

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December 1, 2012
Author: MARTIN BETT
Filed Under: PESA News
Innovative uses of seabed seismic technology can help operators achieve considerably higher returns from new and mature fields. High potential returns.

Shale gas reservoir characterization workflows

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November 26, 2012
Author: Arcis Seismic Solutions
Filed Under: SEG
As shale gas resources have emerged as a viable energy source, their characterization has gained significance. The organic content in these shales which.

Seismic attribute expression of differential compaction

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November 25, 2012
Author: Arcis Seismic Solutions
Filed Under: SEG
In a marine environment, topographic features on the sea floor will usually be covered by a thick layer of shale with the rise of sea level, resulting in.

Remove RTM Artifacts Using Delayed Imaging Time Gathers

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November 24, 2012
Author: TGS
Filed Under: SEG
In RTM imaging, double top salt (DTS) is frequently seen but difficult to remove by conventional post-RTM processing. This paper analyzes the DTS.

Q tomography towards true amplitude image and improve sub-karst image

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November 23, 2012
Author: TGS
Filed Under: SEG
A frequency domain tomographic inversion was developed to estimate frequency dependent energy attenuation by using prestack depth migration common image.

Limits on resolution enhancement for multicomponent data

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November 21, 2012
Author: Chuck Ursenbach
Filed Under: SEG
Two methods have recently been published for carrying out nonstationary spectral broadening (and narrowing) of PS data after it has been mapped into the.

Marine broadband seismic: Is the earth response helping the resolution revolution?

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November 21, 2012
Author: TGS
Filed Under: SEG
Broadband seismic aims to provide a greater richness of both (a), robust low frequencies – ideal for deep structure imaging, and (b), high frequencies –.

Lifetime stability and reliability of fibre-optic seismic sensors for permanent reservoir monitoring

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November 20, 2012
Author: TGS
Filed Under: SEG
Permanent reservoir monitoring (PRM) using seabed arrays of seismic sensors is becoming a well recognised tool for optimizing production and increasing.

Least-squares reverse time migration: towards true amplitude imaging and improving the resolution

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November 19, 2012
Author: TGS
Filed Under: SEG
A 3D inversion based Least-Squares Reverse Time Migration (LSRTM) technique was developed. The algorithm uses the RTM as the forward modeling and.

Iterative velocity model building using GPU based layer-stripping TTI RTM

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November 18, 2012
Author: TGS
Filed Under: SEG
The technology of using Tilted Transverse Isotropic Reverse Time Migration (TTI RTM) for subsalt velocity model building has been playing an important.

Interesting directions being pursued in seismic curvature attribute analysis

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November 17, 2012
Author: Arcis Seismic Solutions
Filed Under: SEG
Seismic curvature attribute analysis forms an integral part of most interpretation projects as they yield useful information that adds value for the.

Improvements in time domain FWI and its applications

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November 16, 2012
Author: TGS
Filed Under: SEG
In this abstract, we describe how to improve time domain full waveform inversion using source wavelet convolution, windowed back propagation and source.

Improved time and anisotropic depth imaging in the Appalachian Foothills

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November 15, 2012
Author: TGS
Filed Under: SEG
We present an imaging methodology that resulted in significant enhancements in defining the subsurface geology in a survey in the Appalachian Foothills..

Improved quality for common focusing point data regularization

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November 14, 2012
Author: TGS
Filed Under: SEG
The data driven 3D true azimuth Common Focusing Point (CFP) data regularization technique is a multi-dimensional data regularization tool. It can be used.

High-resolution Moveout Transform; a robust technique for modeling stackable seismic events

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November 12, 2012
Author: TGS
Filed Under: SEG
We propose a time-domain approach to transform a gather of pre-stack seismic data into an ensemble of highlyresolved traces in the transformed domain..

Enhanced imaging using bandwidth extending operators and pre-stack Q-inversion over the northwest European volcanic margin

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November 10, 2012
Author: TGS
Filed Under: SEG
Extensive sequences of flood basalts dominate the northwest European Atlantic margin. The basalt flows absorb and scatter the higher frequencies present.

Directional Imaging Stack (DIS) for Shot Based Pre-stack Depth Migrations

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November 7, 2012
Author: Wilfred Whiteside
Filed Under: SEG
Shot based pre-stack depth migrations such as RTM are used to generate a partial image volume for each input shot gather. The conventional migrated image.

Compensating visco-acoustic effects in anisotropic resverse-time migration

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November 6, 2012
Author: TGS
Filed Under: SEG
Anelastic properties of the earth cause frequency dependent energy attenuation and phase distortion in seismic wave propagation. It is preferred that.

Complex Structural Imaging in the Tarakan Basin – A Case Study, Offshore Indonesia

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November 5, 2012
Author: TGS
Filed Under: SEG
Increased industry exploration interest in the Tarakan Basin, offshore East Kalimantan, Indonesia, has stimulated a need for 3D seismic data that.

5D leakage: measuring what 5D interpolation misses

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November 3, 2012
Author: Peter Cary
Filed Under: SEG
5D interpolation methods have proven to be capable of overcoming the constraints of actual data acquisition in a wide range of situations. However, in.

Bringing broadband to the subsea

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November 1, 2012
Author: Simon Baldock and Nick Myziuk
Filed Under: Oilfield Technology
Seismic data acquired with an airgun source and recorded on pressure sensors has been the standard for offshore oil and gas exploration for many years..

New attribute for determination of lithology and brittleness

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September 22, 2012
Author: Arcis Seismic Solutions
Filed Under: SEG
The discrimination of fluid content and lithology in a reservoir is an important characterization that has a bearing on reservoir development and its.

A comparison of structural styles and prospectivity along the Atlantic margin from Senegal to Benin

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September 5, 2012
Author: TGS
Filed Under: PESGB/HGS
The structural style of the African Atlantic margin shows significant differences between the passive rifted Northwest African Atlantic Margin (offshore.

Orthogonal wide azimuth surveys:

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September 1, 2012
Author: Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
Filed Under: First Break
Wide azimuth seismic surveying is firmly established as a key element in subsalt exploration and production in the Gulf of Mexico. The challenge now.

Orthogonal wide azimuth surveys: Aquisition and imaging

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September 1, 2012
Author: Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
Filed Under: First Break
Wide azimuth seismic surveying is firmly established as a key element in subsalt exploration and production in the Gulf of Mexico. The challenge now.

Spatial Distribution of Trap Types Relative to the Regional Structural Framework, Baffin Bay, Offshore Greenland

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June 14, 2012
Author: TGS
The Baffin Bay area offshore northwest Greenland represents a vast frontier exploration province. The aim of this work has been to create a new structural.

Reducing Uncertainties in Anisotropic Tomography

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June 7, 2012
Author: TGS
One of the fundamental challenges for anisotropic tomography is the trade-off between the inverted velocity correction and the anisotropic parameters.

Practical Aspects of Subsalt Tomography Using Reverse Time Migration Based Angle Gathers

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June 4, 2012
Author: TGS
Due to the accuracy of the Reverse Time Migration (RTM) algorithm, RTM angle gathers show more coherent and correct moveout subsalt events than Kirchhoff.

High-resolution Moveout Transform - A Robust Multiple Attenuation Technique

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June 2, 2012
Author: TGS
As an alternative to the conventional high-resolution Radon transform, we propose a time-domain approach to transform a gather of pre-stack seismic data.

Geological review of deepwater liberian basin outlines prospectivity

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April 1, 2012
Author: Muhammad S. Tamannai, Ian Deighton, and Peter Conn
The Liberian basin comprises offshore Liberia and Sierra Leone. Details of the regional structure and petroleum prospectivity of this frontier margin have.

Enhanced low frequency signal processing for sub-basalt imaging

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February 21, 2012
Author: Nick Woodburn
Lower frequency energy in the source wavelet is more likely to penetrate through the basalt than higher frequencies as it is less attenuated by intrinsic.

Advances in deepwater reservoir monitoring

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February 2, 2012
Author: MARTIN BETT
Filed Under: GEO ExPro
With the market for Permanent Reservoir Monitoring (PRM) continuing to grow along with deepwater field expenditure (Douglas-Westwood forecasts global deep.

Improved 3D seismic imaging through depth migration and tomography: An Indonesia case study

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January 1, 2012
Author: Jianli Song, Cristina Reta-Tang, Xuening Ma, Jim Wilhite and Laurie Geiger
Filed Under: PESA News
TGS has vast seismic experience in the Asia-Pacific region, including acquisition and advanced time and depth processing. Here we present a case study of.

Enhanced prestack depth imaging of wide-azimuth data

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October 1, 2011
Author: Xuening Ma, Bin Wang, Cristina Reta-Tang, Wilfred Whiteside, and Zhiming Li
Filed Under: Geophysics
We present a case study of enhanced imaging of wideazimuth data from the Gulf of Mexico utilizing recent technologies; and we discuss the resulting.

Postmigration multiple prediction and removal in the depth domain

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October 1, 2011
Author: Bin Wang, Jun Cai, Manhong Guo, Chuck Mason, Sampath Gajawada, and Duryodhan Epili
Filed Under: Geophysics
We have developed a new methodology for predicting and removing multiples in the postmigration depth domain based on wavefield extrapolation and.

Orthogonal Wide Azimuth Surveys: Acquisition and Imaging

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September 21, 2011
Author: Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
Filed Under: SEG
We present results from a case study being performed in the Gulf of Mexico (GoM) that utilizes two orthogonal Wide Azimuth (WAZ) surveys to create an.

Maximizing Throughput for High Performance TTI-RTM: From CPU-RTM to GPU-RTM

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September 19, 2011
Author: TGS
Filed Under: SEG
The implementation and production application of fast Reverse Time Migration (RTM) algorithms, especially for Tilted Transverse Isotropic (TTI) medium, is.

Layer-stripping RTM based on wavefield redatuming

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September 17, 2011
Author: TGS
Filed Under: SEG
Tilted Transverse Isotropic (TTI) Reverse Time Migration (RTM) is routinely used for depth velocity model building. To improve the efficiency of RTM we.

Improved subsalt imaging using TTI anisotropy and reverse time migration scans

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September 17, 2011
Author: TGS
Filed Under: SEG
We present an advanced velocity model building and imaging methodology that resulted in significant enhancements in defining the salt flanks with.

Imaging the Hoop Fault Complex via horizon and fault constrained tomography

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September 16, 2011
Author: TGS
Filed Under: SEG
The Hoop Fault complex in the Southwestern Barents Sea presents an imaging challenge to accurately model the sharp velocity contrast across a major fault.

Expanding domain methods in GPU based TTI reverse time migration

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September 16, 2011
Author: Sang Suh
Filed Under: SEG
Three expanding domain methods are studied which include: (1) constant velocity layer,