Technical Library

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

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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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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.

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.

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, (2) eikonal equation solver and (3) amplitude comparison. The layer.

Detailed velocity model building in a carbonate karst zone and improving sub-karst images in the Gulf of Mexico

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September 14, 2011
Author: TGS
Filed Under: SEG
A velocity anomaly zone with high contrasts and small wavelength variations is often a challenge for conventional depth imaging. It requires model details.

Automatic RTM-based DIT scan picking for enhanced salt interpretation

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September 13, 2011
Author: TGS
Filed Under: SEG
Delayed Imaging Time (DIT) scans based on Reverse Time Migration (RTM) are often used in production to update velocity models, particularly in subsalt or.

Applications of Layer-Stripping RTM to Gulf of Mexico Imaging Projects

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September 12, 2011
Author: TGS
Filed Under: SEG
We have applied layer-stripping Reverse Time Migration (RTM) to several Gulf of Mexico (GOM) depth imaging projects. The key element of layer-stripping.

Merging multiple surveys before imaging

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September 10, 2011
Author: TGS
Filed Under: SEG
We present a redatuming data regularization technique based on a 3D true azimuth Common Focusing Point (CFP) technique. It can effectively merge different.

A case study: Improved subsalt imaging through TTI model building and imaging of a WAZ survey in the Gulf of Mexico

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September 8, 2011
Author: TGS
Filed Under: SEG
Here we present a case study of improved subsalt imaging for a wide azimuth (WAZ) survey in the Mississippi Canyon/Atwater Valley area in the Gulf of.

Anisotropic tomography for TTI and VTI media

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September 6, 2011
Author: TGS
Filed Under: SEG
A simultaneous anisotropic tomographic inversion algorithm is developed. Check shot constraints and appropriate algorithm preconditioning play an.

3D RTM angle gathers from source wave propagation direction and dip of reflector

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September 3, 2011
Author: TGS
Filed Under: SEG
Creating an angle gather is a conceptually simple process of plotting reflection amplitudes along the angle. Reflection or opening angle can be directly.

Stepwise Multiple Elimination using Linear Transforms: An alternative approach to SRME for stacking multiple-free near offsets in the Barents Sea

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October 17, 2010
Author: TGS
Filed Under: SEG
A novel, de-aliased method called Stepwise Multiple Elimination using Linear Transforms (SMELT) is introduced as an alternative to 2-D Surface Related.

Stability and speedup issues in TTI RTM implementation

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October 15, 2010
Author: TGS
Filed Under: SEG
In the implementation of TTI RTM, we meet stability problems and demands for speedup. Staggered Fourier first derivative and linear interpolation improves.

Mississippi Canyon high resolution reprocessing: applications for shallow drilling hazard and geologic evaluation

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October 12, 2010
Author: TGS
Filed Under: SEG
A joint contractor-company project was undertaken to evaluate the practicality and utility of shallow high resolution reprocessing of large deepwater.

Interactive demultiple in the post-migration depth domain

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October 11, 2010
Author: TGS
Filed Under: SEG
In efforts to further improve final migrated images we have developed a new methodology for post-migration multiple removal in the migration depth domain..

Enhanced pre-stack depth imaging of wide-azimuth data from the Gulf of Mexico: a case history

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October 8, 2010
Author: TGS
Filed Under: SEG
We present a case study of enhanced imaging of wideazimuth data from the Gulf of Mexico utilizing recent technologies; and we discuss the resulting.

True azimuth surface multiple elimination

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October 7, 2010
Author: TGS
Filed Under: SEG
A data driven 3D true azimuth surface related multiple elimination (SRME) technique can be quite effective in removing surface related multiples for both.

Imaging beneath the Florida Escarpment progressing from 2D, 3D and anisotropy : A case history

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October 5, 2010
Author: Gary Rodriguez
Filed Under: SEG
The long history of imaging in this area will be reviewed. Incremental improvements in data quality and interpretability will be shown. Processing efforts.

Complex-salt model building using combination of interactive beam migration and localized RTM

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October 21, 2009
Author: TGS
Filed Under: SEG
A new salt velocity model building methodology is proposed which allows effective testing of different salt interpretation scenarios. In this methodology,.

Use of narrow azimuth data for enhanced Wavefield Extrapolation multiple prediction on a WAZ survey

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October 18, 2009
Author: TGS
Filed Under: SEG
There has been a continually expanding interest in wide azimuth (WAZ) data in all its variations. We are now challenged to take full advantage of the.

Salt interpretation validated by salt tectonic study in the offshore Gulf of Mexico

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October 17, 2009
Author: TGS
Filed Under: SEG
To identify and define a complex salt body with rugose top and base is essential in building an accurate velocity model for premium quality depth imaging..

Wave-equation based residual multiple prediction and elimination in migration depth domain as an aid to seismic interpretation

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October 15, 2009
Author: TGS
Filed Under: SEG
We have developed a new methodology for predicting and removing multiples in the migration depth domain based on wavefield extrapolation and attribute.

Source separation of simultaneous source OBC data

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October 13, 2009
Author: TGS
Filed Under: SEG
To attain the benefits of simultaneous shooting in marine data acquisition, either the simultaneous sources have to be placed far apart to minimize the.

Constrained propeller ship noise removal and its application to OBC data

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October 11, 2009
Author: TGS
Filed Under: SEG
A constrained propeller ship noise removal technique for OBC data has been developed. The constraints include the ship lane information, global linear.

Reverse-time migration by fan filtering plus wavefield decomposition

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October 10, 2009
Author: TGS
Filed Under: SEG
The conventional zero-lag crosscorrealtion imaging condition of reverse-time migration is subject to strong migration artifacts. This paper studies.

From SRME or wave-equation extrapolation to SRME and wave-equation extrapolation

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October 6, 2009
Author: TGS
Filed Under: SEG
Better de-multiple results are achieved by combining the strengths of SRME and wave field extrapolation techniques. In this paper, we illustrated three.

Freedom Wide-Azimuth Processing and Imaging, a case history study of WAZ imaging in Mississippi Canyon, Gulf of Mexico

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October 5, 2009
Author: TGS
Filed Under: SEG
Wide-azimuth (WAZ) data is the most significant advance to have occurred in seismic acquisition and processing since the introduction of 3D seismic in the.

Improved Imaging through Anisotropic Depth Migration and High-Resolution Shallow Tomography In Lieu Of Refraction Statics in South Timbalier Trench Area

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October 3, 2009
Author: TGS
Filed Under: SEG
We present a case study of an anisotropic prestack depth migration (APSDM) project which used high-resolution, shallow tomography and anisotropic model.

TTI/VTI anisotropy estimation by focusing analysis, Part II: application

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October 2, 2009
Author: TGS
Filed Under: SEG
The workflow for the practical application of the automated focusing analysis in time domain is demonstrated by deriving the TTI anisotropy parameters,.

TTI/VTI anisotropy parameters estimation by focusing analysis, Part I: theory

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October 1, 2009
Author: TGS
Filed Under: SEG
Time domain and depth domain focusing operators are introduced to estimate anisotropic parameters. The fully automated time domain focusing operator to.

Salt interpretation for depth imaging – where geology is working in the geophysical world

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October 1, 2009
Author: TGS
Filed Under: SEG
Accurate salt interpretation involves an integration of geology and geophysics. In the practice of salt interpretation and model building in depth.

Beam-based Interactive Imaging for Salt Interpretation and Salt Model Building

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November 12, 2008
Author: TGS
Filed Under: SEG
It is well understood that accurate salt interpretation is critical to subsalt imaging. When reflections from the saltsediment boundaries are not.

Challenges in Time & Depth: Imaging the Eastern Delta OBC Survey, a Case History

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November 10, 2008
Author: TGS
Filed Under: SEG
Immediately offshore of the Mississippi Delta the geological setting conspires with numerous production installations to produce a unique set of problems.

Impacts of Seismic Anisotropy and Subsalt Velocity Updates in Imaging, Deepwater Gulf of Mexico

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November 9, 2008
Author: TGS
Filed Under: SEG
Seismic anisotropy refers to seismic waves traveling with different velocity at different propagation angle, usually in consolidated, shale-prone areas.

A new multiple subtraction method using the attributes of predicted multiples

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November 9, 2008
Author: TGS
Filed Under: SEG
Despite the development of excellent techniques for predicting multiples such as convolution based or wavefield extrapolation based approaches,.

Localized reverse time migration for salt model building

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November 9, 2008
Author: TGS
Filed Under: SEG
Salt model building is a key process for successful subsalt imaging. In complex areas, Reverse Time Migration (RTM) provides better images than One-way.

Multiple Prediction by Wavefield Extrapolation in Common-P Domain

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November 7, 2008
Author: TGS
Filed Under: SEG
Wavefield extrapolation (WFE) multiple prediction typically operates in common shot domain, and is very effective to predict complex multiples such as.

A Multi-Step Approach for Efficient Reverse-Time Migration

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November 6, 2008
Author: TGS
Filed Under: SEG
Reverse-time migration (RTM) provides superior images in areas where there are steep salt flanks or other complex geologic structures. However, the high.

Enhanced Anisotropic Model Building Methodology and Pre-stack Depth Imaging in Deep Water Gulf Of Mexico: A case history

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November 2, 2008
Author: TGS
Filed Under: SEG
We present a case study of anisotropic model building and the resulting accuracy of event placement and improved image quality. Approximately 660 OCS.

Subsalt Velocity Update Using RTM-based DT Scan

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November 2, 2008
Author: TGS
Filed Under: SEG
Subsalt wave-equation based migration (WEM) scan is an effective way for subsalt velocity updating, and has become an industry standard practice; however,.

Differential OBC processing techniques

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September 14, 2007
Author: TGS
Filed Under: SEG
Compared to surface seismic, the increased complexity associated with seafloor seismic data (OBC) requires considerable attention to details if a.

Repeat imaging using grid tomography and new well information: application to two sub-salt fields in the Gulf of Mexico

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September 12, 2007
Author: TGS
Filed Under: SEG
The goal of repeat imaging (detailed studies of prospects as new information is available) using PSDM is to generate new locations for both development.

Fast velocity model building using kinematic demigration and migration

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September 8, 2007
Author: TGS
Filed Under: SEG
3-D prestack depth migration is the most time consuming part in velocity model building. To minimize the required iteration of depth migration, we first.

Kirchhoff or wave equation?

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October 26, 2003
Author: BP
Filed Under: SEG
Wave equation (or wave field extrapolation) techniques have been used in industry for the past few years, with the purpose to improve the accuracy of 3D.