Technical Library

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

Replacing conventional brittleness indices determination with new attributes employing true hydrofracturing

February 20, 2020
Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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Addressing artifacts in PP-PS registration prior to performing joint impedance inversion

January 21, 2020
Chopra, Satinder Sharma, Ritesh Kumar Howell, Jim

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

September 19, 2019
Zhuoquan Yuan, Yang He, Jean Ji, Vijay Singh, and Senren Liu
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A case study: Enhanced 3D interpolation combined with 3D structural modeling from 2D seismic data

September 16, 2019
Taejong Kim, Tefera Eshete, Xuening Ma, Kenny Lambert, Ken Pavloske
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FWI Salt Model Update Trials with Sparse Nodes

September 16, 2019
Yi Huang, Jian Mao, Chong Zeng, James Sheng
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Ground roll removal using adaptive reflection mask function in Curvelet domain

September 15, 2019
Chenhao Yang, Zhaojun Liu, Jianming Sheng, Bin Wang
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Fourier finite-difference wave-equation migration in tilted transversely isotropic media with an improved solution for coefficient estimation

September 15, 2019
Chen Tang, Yang He, Jian Mao, Jianming Sheng
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Impact of adequate QC steps on seismic reservoir characterization

September 15, 2019
Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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Challenges and uncertainty in the seismic reservoir characterization of Bone Spring and Wolfcamp formations in the Delaware Basin using rock physics

September 15, 2019
Ritesh Kumar Sharma, Satinder Chopra, James Keay, Larry Lines
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A robust workflow for performing joint impedance inversion with applications from North American Basins

September 15, 2019
Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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SaltSeg: A β-variational autoencoder constrained encoder-decoder architecture for accurate geologic interpretation

September 15, 2019
Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
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Interpolation of regularly sampled prestack seismic data with self-supervised learning

September 15, 2019
Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
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A practical data-driven method for applying amplitude inverse Q that preserves amplitude variations with offset

September 15, 2019
N. Ratnett, S. Baldock, H. Masoomzadeh
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Shallow land PSDM velocity model building for unconventional plays

September 15, 2019
Perz, Mike Bruins, Candace Heim, Josef
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Deblending of simultaneous and flip-flop shooting of sparse node long offset seismic for refraction FWI

September 15, 2019
Pal, Himadri Masoomzadeh, Hassan Roende, Henrik Liu, Zhaojun Bate, Duncan Mason, Chuck
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Seismic data denoising with mathematical morphological filters

September 15, 2019
Liu, Z. Wheaton, D. Wang, B.
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Benefits of tilted orthorhombic imaging on a FAZ dataset in the central Gulf of Mexico

September 15, 2019
Li Li, Dhananjay Tiwari, Xinyi Sun, Zhiqiang Guo
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Towards smaller source volumes –an example from the Gulf of Mexico

September 15, 2019
Langhammer, Jan Bate, Duncan Roende, Henrik Ha, Roy
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Phase only reflection full-waveform inversion for high resolution model update

September 15, 2019
Jian Mao, James Sheng, Guy Hilburn
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Resolving Celtic Sea imaging anomalies through a multistage FWI and tomography workflow

September 15, 2019
Hilburn, Guy Hart, Matt Mao, Jian
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Addressing some artifacts in the PP-PS registration prior to performing joint impedance inversion

September 15, 2019
Chopra, Satinder Sharma, Ritesh Kumar
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Unsupervised machine learning facies classification in the Delaware Basin and its comparison with supervised Bayesian facies classification

September 15, 2019
Chopra, Satinder Marfurt, Kurt J. Sharma, Ritesh Kumar
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Efforts at effective seismic reservoir characterization of Bone Spring and wolfcamp formations in the Delaware Basin

September 15, 2019
Chopra, Satinder Sharma, Ritesh Kumar Keay, James
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A practical least-squares Kirchhoff Q migration workflow and its application to Celtic Sea imaging

September 15, 2019
Cheng Cheng*, Yang He, Zhaojun Liu, Bin Wang
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Deblending of long-offset OBN data for velocity model building by sparse inversion of hyperboloidal components

September 15, 2019
Masoonzadeh, Hassan Baldock, Simon Liu, Zhaojun Roende, Henrik Mason, Chuck Pal, Himadri
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Resolving Celtic Sea seismic anomalies

August 3, 2019
Hilburn, Guy Mao, Jian

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

June 3, 2019
Y. Huang, J. Mao*, J. Sheng

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

June 3, 2019
S. Baldock, T. Kim, T. Feng, Z. Guo, H. Bondeson, B. Kjølhamar

Imaging Paleocene and Jurassic Prospects Within the Porcupine Basin, Ireland

June 3, 2019
M. Hart, E. Cho, S. Bhamber, A. Hulks, S. O’Keefe

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

June 3, 2019
N. Ratnett, S. Baldock, H. Masoomzadeh
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Mathematical Morphological Filters and Applications in Seismic Data Denoising

June 3, 2019
Z. Liu, D. Wheaton, V. Tyagi, B. Wang*

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

June 3, 2019
A. Garg*, H. Masoomzadeh, S. Baldock, D.J. Verschuur

Amplitude Preserved Least-squares RTM Gathers

June 3, 2019
Y. He, F. Hao, S. Dong, B. Wang*

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

June 3, 2019
S. Stokes*, D. Manns, M. Romanenko, B. Kjølhamar, R. Myklebust, E. Henden

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

June 3, 2019
Hilburn, Guy Mao, Jian

Considerations for a Model Building Paradigm Shift in Gulf of Mexico

June 3, 2019
H. Roende, J. Sheng, Z. Liu, D. Bate

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

May 2, 2019
Chopra, Satinder Sharma, Ritesh Kumar Howell, Jim

Multispectral, multiazimuth, and multioffset coherence attribute applications

May 1, 2019
Chopra, Satinder Marfurt, Kurt
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A case study: Geologically guided tomography to improve image below the Aptian unconformity, offshore Gambia

April 22, 2019
Kim, Taejong
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High-resolution tomographic inversion with image-guided preconditioning and offset dependent picking

April 22, 2019
Hilburn, Guy
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Creating a 3D Image from 2D Data, a Case Study from Hera Subbasin, Offshore Indonesia

April 11, 2019
Notiyal, Subodh
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Imaging beneath Basalts in the Norwegian Sea Using RTM Tomography and Least Squares RTM

April 4, 2019
Baldock, S., T. Kim, T. Feng, Z. Guo, C. Zeng, H. Bondeson, B. Kjollhamar, M. Hart

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

April 4, 2019
Hilburn, G., J. Mao, J. Sheng, S. Baldock, M. Hart

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

April 4, 2019
Hart, M. S. Bamber, A. Hulks, S. O'Keefe, E. Cho, S. Baldock

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

April 4, 2019
Stokes, S., D., Manns, M. Romanenko, B. Kjolhamar, R. Myklebust, E. Henden

Suprasalt model building using full-waveform inversion

March 22, 2019
TGS
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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

March 4, 2019
Tiwari, D., J. Mao, J. Sheng

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

November 19, 2018
Salem, A., W. Conway, E. T. Serra, B. Sayers, A. Checconi
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MSGBC: Where is the next success?

October 25, 2018
TGS

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

October 14, 2018
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

August 28, 2018
He,Yang Hao,Feng Dong, Shuqian Wang, Bin
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Hybrid Approach for Least Squares Migration

August 28, 2018
Wang,Bin Zeng,Chong Dong,Shuqian
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Refraction and reflection FWI for high-resolution velocity modeling in Mississippi Canyon

August 28, 2018
Tiwari, D., J. Mao, X. Ma
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Deblending continuous records by sparse inversion of energetic and coherent surfaces

August 28, 2018
Masoomzadeh,Hassan Baldock,Simon Liu, Zhaojun
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Geologically guided tomography to improve image below the Aptianunconformity, offshore Gambia

August 28, 2018
Kim, T., B. Soelistijo, G. Hilburn, P. Bhowmik, D. Armentrout, Z. Guo A. Nangarla
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Orthorhombic model building using 5D regularized full azimuth land data

August 28, 2018
Gao,Wei Guo,Zhiqiang Ma,Xuening Rodriguez,Gary
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SCOOP and STACK inversion case studies

August 28, 2018
Chopra, Satinder Sharma, Ritesh Kumar Keay, James
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Seismic facies classification using some unsupervised machine learning methods

August 28, 2018
Chopra, Satinder Marfurt, Kurt
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Salt tectonic styles in the spreading basin: Yucatan, Offshore Mexico

August 28, 2018
Bhowmik,Purnima Hernandez,Rodolfo Rothe,Katarina
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Quantitative Interpretation Efforts in Seismic Reservoir Characterization of Utica-Point Pleasant Shale

July 23, 2018
Chopra, Satinder Sharma, Ritesh Kumar Keay, James

Coherence attribute applications on seismic data in various guises

July 23, 2018
Chopra, Satinder Marfurt, Kurt

Considerations in Azimuthal Processing and Velocity Inversion for Unconventional Plays

July 23, 2018
Perz, Mike Keller, William Kriechbaum, Victor

Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building

July 23, 2018
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

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

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

June 11, 2018
Cox,Peter Bhamber,Sandeep Ditty, Chris

Triple Source in Seismic Exploration – Experiences Offshore Norway

June 11, 2018
J. Langhammer, H. Bondeson, B. Kjølhamar, S. Baldock, H. Masoomzadeh, N. Ratnett

Unfolding Marine Multiazimuth Data from the Gulf of Mexico

June 11, 2018
Roende, Henrik Hilburn, Guy Bate, Duncan

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

June 11, 2018
Salem, Azza Hart,Matt Baldock,Simon Gromotka,Jan Chen, Jing Sheng, James

Exploring the Norwegian Atlantic Margin: Møre and Vøring Basins

June 1, 2018
BENT KJØLHAMAR, JAN LANGHAMMER, NICK WOODBURN, REIDUN MYKLEBUST and SIMON BALDOCK
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

February 22, 2018
Hart, Matt J. Sheng,James Baldock,Simon Mao, Jian

Liberia, A Fresh Approach

October 1, 2017
BEN SAYERS and ALEX BIRCH-HAWKINS, RUFUS TARNUE, GERRARD SPEAR, LAUREN MAYHEW,
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

September 15, 2017
Yongbo Zhai, Zhaojun Liu, James Sheng, Bin Wang, Josef Heim
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Correlation of azimuthal velocity anisotropy and seismic inversion attributes to Austin Chalk production: a south central Texas case study

September 15, 2017
William Keller, Rene´ Mott, Austin Jumper, Heloise Lynn, Walt Lynn, Mike Perz
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Enhanced Structure and Subsalt Imaging of the Perdido Fold Belt Offshore Mexico

September 15, 2017
Tefera Eshete, Katarina Rothe
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The development and applicability of structurally conformable 2D to 3D interpolation

September 15, 2017
Sorche O’Keefe, Neil Ratnett, Nick Woodburn, Camilla Pedersen, Willl Bradbury, Manhong Guo, Wilfred Whiteside
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4D Non Local regularization of 3D seismic data using block adaptive POCS

September 15, 2017
Satyakee Sen, James Sheng, Zhaojun Liu Bin Wang,
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Shallow high-amplitude seismic anomalies characterization in the Hoop Fault Complex, Barents Sea

September 15, 2017
Satinder Chopra, Ritesh Sharma, Graziella Kirtland Grech, Bent Erlend Kjølhamar
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Seismic reservoir characterization of Utica-Point Pleasant shale with efforts at quantitative interpretation– a case study

September 15, 2017
Satinder Chopra, Ritesh Kumar Sharma, Hossein Nemati, James Keay
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Coherence attribute applications on seismic data in various guises

September 15, 2017
Chopra, Satinder Marfurt, Kurt
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High-resolution image-guided tomography and Q-tomography solution for improved depth imaging for an OBC survey

September 15, 2017
Robert Shank, Sandip Chattopadhyay, Gary Rodriguez, Tefera Eshete, Guy Hilburn, Yang He, Connie VanSchuyver
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Integration of geomechanical and mineralogical data for fracability evaluation in Utica shale play

September 15, 2017
Ritesh Kumar Sharma, Satinder Chopra, James Keay, Hossein Nemati, Larry Lines
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A novel workflow for predicting TOC in a Utica play

September 15, 2017
Ritesh Kumar Sharma, Satinder Chopra, Larry Lines
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An innovative way of computing reliable density from impedance inversion methods

September 15, 2017
Ritesh Kumar Sharma, Satinder Chopra, Larry Lines
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SDRs or presalt synrift graben? – Insight from an integrated case study of presalt reflectors in Campos Basin, offshore Brazil

September 15, 2017
Quincy Zhang, Gary Rodriguez, Hao Xun, Duncan Bate, James Keay, Michael R. Hudec, Jonathan Watson
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Chasing anisotropy in the Austin Chalk and Eagle Ford shale formations: azimuthal processing challenges and considerations

September 15, 2017
Peng Cheng, Mike Perz, Femi Ogunsuyi, Frank Meng, Xinxiang Li
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Target-oriented parameters for curvature of the Falher F tight sandstone of Alberta, Canada

September 15, 2017
Lee Hunt, Bahaa Beshry, Satinder Chopra, Cole Webster
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Improved salt and subsalt model with common offset RTM tomography: A case history in deep water, Gulf of Mexico

September 15, 2017
Jianshun Sheng, Seung Yoo, Cristina Reta-Tang, Gary Rodriguez
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Integrated Multiple Attenuation Across the Shelf Edge – a Colombian Caribbean Case Study

September 15, 2017
E.J. Wiarda, Walter Conway, P. Pappano, Cheng Zhan, Dan Wheaton, S. Nistala, Raheel Malik, and Simon Baldock
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Fracture detection and reservoir characterization through high resolution orthorhombic tomography for unconventional plays

September 10, 2017
Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, and Victor Kreichbaum
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Salt interpretation for velocity model building using long offset multi-WAZ data – improving the subsalt image in Gulf of Mexico

September 2, 2017
Chaikin, D., H. Roende, J. Kegel
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Joint multiple predictions in SRME with combined Orthogonal WAZ surveys

September 1, 2017
Nangarla, A., S. Laha, N. Hokanson, M. Guo, S. Baldock
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Production Forecasting in the Scoop/Stack Play

September 1, 2017
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

August 1, 2017
Wang,Bin Zeng,Chong Dong,Shuqian
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Characterization of Shallow High Amplitude Seismic Anomalies in the Hoop Fault Complex, Barents Sea

June 15, 2017
Satinder Chopra, Ritesh Sharma, Graziella Kirtland Grech, Bent Erlend Kjølhamar
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Imaging of Multiples and its Application on Single Sensor Data

June 14, 2017
Jian Mao, Simon N. Baldock, James Sheng

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

June 14, 2017
Hassan Masoomzadeh, Neil Ratnett, Tom Travis, and Azza Salem

A Robust Multistage Full Waveform Inversion and Its Application

June 13, 2017
Jian Mao, James Sheng, Matt Hart, Taejong Kim

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

June 13, 2017
Ian Deighton, Felicia Winter

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

June 13, 2017
Consolvo, B.P., M.A.H. Zuberi, R.G. Pratt, P.W. Cary

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

June 12, 2017
Zhiqiang Guo, Yang He, Guy Hilburn, Dhananjay Tiwari, Gary Rodriguez

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

June 12, 2017
Senren Liu, Gary Rodriguez, Feng Hao
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Broadband Imaging in the Barents Sea - Impact of 3D Survey Design and Data Processing on Jurassic Lead Quality

June 12, 2017
Salem, A., M. Romanenko, B. Kjolhamar

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

June 12, 2017
Hardwick, A.J., D. Woods, H. Masoomzadeh, R. Clark
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Evolution of deghostingprocess for single sensor streamer data from 2D to 3D

May 28, 2017
Zhigang Zhang, Hassan Masoomzadeh, Bin Wang
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A presalt graben system near the COB imaged by high quality 3D seismic data in Campos Basin, Offshore Brazil

May 28, 2017
Quincy Zhang, Michael R. Hudec, Gary Rodriguez
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Volumetric fault image enhancement—Some applications

May 28, 2017
Satinder Chopra, Kurt J. Marfurt
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Uncertainty in orthorhombic model building: Analysis, mitigation, and validation

February 1, 2017
Guy Hilburn, Yang He, and Bin Wang

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

December 1, 2016
Jian Mao, James Sheng, Matt Hart, Taejong Kim

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

September 15, 2016
Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
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Understanding the seismic disorder attribute and its applications

September 15, 2016
Chopra, Satinder Marfurt, Kurt
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Using buried receivers for multicomponent, time-lapse heavy oil imaging

September 15, 2016
Peter Vermeulen, Guoping Li, Hugo Alvarez, Peter Cary, Gary James
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Characterizing a Cardium waterflood via 3C3D land surface seismic: the Washout Creek experience

September 15, 2016
Mike Perz, Xinxiang Li, Mohammad Nemati, Ritesh Kumar Sharma, Satinder Chopra, Peter Cary, Wendy Ohlhauser, Kimberly Pike, Brian Creaser
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Broadband processing of 3D towed streamer data: a critical analysis of 2D and 3D plane wave decomposition

September 15, 2016
Hassan Masoomzadeh, Anthony Hardwick
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Reducing subsalt velocity uncertainties using common offset RTM gathers (COR)

September 15, 2016
Gary Rodriguez, Senren Liu
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Understanding the structure, extent and potential source rocks of the syn-rift in Madagascar

September 15, 2016
Felicia Winter, Erika Tibocha, Honorata Rutkowska, Alex Birch-Hawkins, Roel Dirkx
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Identification of sweet spots in shale reservoir formations

September 1, 2016
Chopra, Satinder Sharma, Ritesh Kumar

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

September 1, 2016
SINDRE JANSEN, WILL BRADBURY and BENT ERLEND KJØLHAMAR
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

August 15, 2016
Satinder Chopra, Kurt J. Marfurt

Adaptive Windowed Deghosting - Applications to FAZ Acquisition

June 1, 2016
Zhigang Zhang, Zhaohong Wu, Bin Wang, Jean Ji

Insights into the Tectonic Evolution andProspectivity of Madagascar Offshore Basins

June 1, 2016
Roel Dirkx, Felicia Winter, S. Musa, Richard Cooke, Ben Sayers, Jennifer Halliday, Erika Tibocha

Adaptive Least-squares RTM for Subsalt Imaging

June 1, 2016
Chong Zeng, Shuqian Dong, Bin Wang, Zhigang Zhang

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

May 30, 2016
Anthony J. Hardwick, Sindre Jansen, Bent Erlend Kjølhamar

Building more robust low-frequency models for seismic impedance inversion

May 28, 2016
Amit Kumar Ray, Satinder Chopra

Adaptive least-squares RTM with applications to subsalt imaging

March 5, 2016
Chong Zeng, Shuqian Dong, Bin Wang

New insight into Gulf of Mexico Well Success

October 1, 2015
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?

October 1, 2015
Cian O’Reilly, Dario Chisari, James Clarke, Sadiqah Musa, Dr. Jennifer Halliday, Ian Deighton, Erika Tibocha and Paul Chandler
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

October 1, 2015
Brad Torry
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

September 10, 2015
Zhigang Zhang, Zhaohong Wu, Bin Wang, Jean Ji
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Joint PP/PS tomography with Dynamic Warping

September 10, 2015
Yang He, Guy Hilburn, Francis Sherrill
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Enhancing interpretability of seismic data with spectral decomposition phase components

September 10, 2015
Satinder Chopra, Kurt J. Marfurt
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Choice of mother wavelets in CWT spectral decomposition

September 10, 2015
Satinder Chopra, Kurt J. Marfurt
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Reducing uncertainty in characterization of Vaca Mureta shale with post-stack seismic data

September 10, 2015
Ritesh Kumar Sharma, Satinder Chopra, Luis Vernengo, Eduardo Jorge Trinchero, Claudio Sylwan
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Identification of thin sweet spots in the Duvernay Formation of north central Alberta

September 10, 2015
Chopra, Satinder Sharma, Ritesh Kumar
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Estimation of density from seismic data without long offsets – a novel approach.

September 10, 2015
Chopra, Satinder Sharma, Ritesh Kumar
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Shallow water surface related multiple elimination: a case study from North Sea

September 10, 2015
Raheel Malik, Simon Baldock, Becky Miller, Satyakee Sen, Zhaojun Liu
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Directional designature without near-field hydrophone recordings

September 10, 2015
Peter Scholtz, Hassan Masoomzadeh, Roy Camp
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Unbiased surface-consistent scalar estimation by crosscorrelation

September 10, 2015
Nirupama Nagarajappa, Peter Cary
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High resolution velocity model building over the Hoop Fault Complex.

September 10, 2015
Matt J. Hart, O.A. Adewumi, Carl Lang, Guy Hilburn, Gary Rodriguez
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Prestack and poststack wave-equation based demultiple: a case study of its impact on subsalt interpretation

September 10, 2015
Gregg Barker, August Lau, Jian Mao, Dhananjay Tiwari, Satyakee Sen
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High resolution tilted-orthorhombic tomographic inversion to improve velocity modeling and imaging: a case study of its impact on subsalt

September 10, 2015
Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
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Adaptive least-squares RTM and application to Freedom WAZ subsalt imaging

September 10, 2015
Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
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Deblending of continuously recorded OBN data by subtraction integrated with a median filter

September 10, 2015
Cheng Zhan, Raheel Malik, Jim Specht, Zhaojun Liu, Davide Teixeira
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Accounting for sea surface variation in deghosting – a novel approach applied to a 3D dataset offshore west Africa

September 10, 2015
Anthony Hardwick, Patrick Charron, Hassan Masoomzadeh, Adeola Aiyepeku, Peter Cox, Sampad Laha
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More robust methods of low-frequency model building for seismic impedance inversion

September 10, 2015
Amit Kumar Ray, Satinder Chopra
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Gulf of Mexico: Post Well Analysis

September 1, 2015
Alessio Checconi, Peter Conn, David Little, Edward Smith, James Stockley, Erika Tibocha;
 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

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

Broadband Processing of Variable-depthStreamer Data

June 2, 2015
Hassan Masoomzadeh, Anthony Hardwick, Simon Baldock

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

June 2, 2015
Matt J. Hart, O.A. Adewumi, Carl Lang, Guy Hilburn

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

June 2, 2015
K. Rene’ Mott, William Keller, Mike Perz
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Triple-Source Simultaneous Shooting (TS3), AFuture for Higher Density Seismic?

June 2, 2015
Jan Langhammer, Pete Bennion

Broadband Processing of P-Cable Data in theBarents Sea

June 2, 2015
Neil D. Ratnett, Peter Cox, Gboyega Adeloye, Tom Travis

The Hoop Area: New testing ground for geophysical technologies

May 1, 2015
Bent Kjølhamar
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

February 1, 2015
Satinder Chopra, Kurt J. Marfurt

Advances in Seismic Rejuvenate Shelf

February 1, 2015
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

January 1, 2015
Satinder Chopra, Kurt J. Marfurt

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

November 24, 2014
S. Polteau, S. Planke, A. Mazzini, Reidun Myklebust

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

October 2, 2014
Kwangjin Yoon, Ioan Vlad, Peyman Moghaddam, Jian Mao, Jianming Sheng
tags icon SEG

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

October 2, 2014
Jun Zhou, Jun Sun, Xuening Ma
tags icon SEG

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

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

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

October 2, 2014
Jian Mao, James Sheng, Bin Wang, Connie VanSchuyver
tags icon SEG

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

October 2, 2014
Guy Hilburn, Yang He, Zengjia Yan, Francis Sherrill
tags icon SEG

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

October 2, 2014
Cristina Reta-Tang, Walter Conway, James Keay, Diane Yang, Xinyi Sun
tags icon SEG

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

October 2, 2014
Chuck Ursenbach, Peter Cary
tags icon SEG

Broadband least-squares reverse time migration for complex structure imaging

October 2, 2014
Chong Zeng, Shuqian Dong, Jian Mao, Bin Wang
tags icon SEG

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

October 2, 2014
Anthony Hardwick, Hassan Masoomzadeh, Jan Gromotka, Peter Cox, Rachel Gilbert
tags icon SEG

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

October 2, 2014
Amit Kumar Ray, Ritesh Kumar Sharm,Satinder Chopra
tags icon SEG

Enhanced adaptive subtraction method for simultaneous source separation

October 2, 2014
Zhaojun Liu, Bin Wang, Jim Specht, Jeffery Sposato, Yongbo Zhai
tags icon SEG

Final Laser-Beam Q-Migration

October 2, 2014
Xiang Xiao, Feng Hao, Christopher Egger, Bin Wang, Fangxiang Jiao, Xinling Wang
tags icon SEG

5D data regularization using enhanced antileakage Fourier transform

October 2, 2014
Wilfred Whiteside, Manhong Guo, Jun Sun, Bin Wang
tags icon 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

October 2, 2014
Taejong Kim, Francis Sherrill, Guy Hilburn, Yang He, Cristina Reta-Tang
tags icon SEG

Reweighted thresholding and orthogonal projections for simultaneous source separation

October 2, 2014
Satyakee Sen, James Sheng, Zhaojun Liu Bin Wang,
tags icon SEG

Seismic facies analysis using generative topographic mapping

October 2, 2014
Satinder Chopra, Kurt J. Marfurt
tags icon SEG

Seismic discontinuity attributes and Sobel filtering

October 2, 2014
Satinder Chopra, Kurt J. Marfurt
tags icon SEG

Churning seismic attributes with principal component analysis

October 2, 2014
Chopra, Satinder Marfurt, Kurt
tags icon SEG

A finite-difference method for orthorhombic reverse time migration

October 2, 2014
Sang Suh
tags icon SEG

Seismic characterization of Montney shale formation using Passey’s approach

October 2, 2014
Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
tags icon SEG

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

October 2, 2014
Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Mohammad Nemati, Ray Morin, Brian Schulte, David D’Amico
tags icon SEG

Hoop Basin: Drilling success and playground for new exploration methods

September 1, 2014
BENT KJØLHAMAR, CHRISTOPHER SÆBØ SERCK, CAMILLA BROCH PEDERSEN, REIDUN MYKLEBUST
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

August 5, 2014
Ian Deighton, Erika Tibocha, Pete Dotsey

Full Waveform Inversion on Jackdaw OceanBottom Nodes Data in North Sea

June 19, 2014
K. Yoon, P. Moghaddam, I. Vlad, M. Warner, J. Sheng

Broadband Processing of Slant Streamer Datafrom Offshore Tunisia

June 19, 2014
H. Masoomzadeh, A. Hardwick

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

June 19, 2014
Yang He, Guy Hilburn, Francis Sherrill
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Deghosted Least-squares RTM - Image DomainBroadband Solution for Complex Structures

June 19, 2014
Shuqian Dong, Chong Zeng, Hassan Masoomzadeh, Bin Wang

Rock-physics Foundation for AVO Analysis

June 9, 2014
John P. Castagna, Satinder Chopra, Firas Al-Jarrah
tags icon SEG

Image-guided tomography: structure conforming inversion for complex overburden

June 9, 2014
Guy Hilburn, Yang He, Francis Sherrill, Taejong Kim, Zengjia Yan
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Eastern Canada has plenty to offer

May 1, 2014
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

April 4, 2014
M.A. Calvert, H.H. Roende, I.H. Herbert1 J. Zaske, P. Hickman, U. Micksch

Seismic discontinuity attributes and Sobel filtering

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

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

March 1, 2014
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

March 1, 2014
Brad Torry, Thane Strandberg, Abu Chowdhury, Jason Kegel, James Keay
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

February 5, 2014
Satinder Chopra, Kurt J. Marfurt

Improving salt boundary imaging using an RTM inverse scattering imaging condition

October 9, 2013
Sang Suh, Bing Wang
tags icon SEG

Implementation of Kirchhoff prestack depth migration on GPU

October 9, 2013
Chopra, Satinder Sharma, Ritesh Kumar
tags icon SEG

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

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

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

October 9, 2013
Yang He, Adam Gersztenkorn, Guy Hilburn, Sherry Yang, Bin Wang
tags icon SEG

Questioning the basics of surface-consistent scaling

October 9, 2013
Nirupama Nagarajappa, Peter Cary
tags icon SEG

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

October 9, 2013
Nirupama Nagarajappa, Peter Cary, Chuck Ursenbach
tags icon SEG

Angle domain illumination analysis along a target horizon

October 9, 2013
Jian Mao, Sang Suh, Bin Wang
tags icon SEG

Broadband processing of linear streamer data

October 9, 2013
Hassan Masoomzadeh, Nick Woodburn, Anthony Hardwick
tags icon SEG

Unconventional reservoir characterization using conventional tools

October 9, 2013
Chopra, Satinder Sharma, Ritesh Kumar
tags icon SEG

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

October 9, 2013
Zhigang Zhang, Jean Ji, Bin Wang
tags icon SEG

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

October 9, 2013
Wilfred Whiteside, Bin Wang, Helge Bondeson, Zhiming Li
tags icon SEG

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

October 9, 2013
W. Gao, Z. Guo, M. Guo, Q. Zhang, S. Hightower, G. Cloudy Jr., Z. Li
tags icon SEG

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

October 9, 2013
Tefera Eshete, Yang He, Xinyi Sun
tags icon SEG

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

October 9, 2013
Chopra, Satinder Marfurt, Kurt
tags icon SEG

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

October 9, 2013
August Lau, Dhananjay Tiwari, Zhiqiang Guo, Gary Rodriguez, Jean Ji
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A 3D illumination study to investigate fault shadow effects over the Hoop Fault Complex

October 9, 2013
Anthony Hardwick, Litty Rajesh
tags icon SEG

Danish sector: Insight into mature and deeper plays

October 1, 2013
Will Bradbury, Steve Drewell, Gulnara Hickman
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

September 17, 2013
TGS
tags icon 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

September 16, 2013
TGS
tags icon 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

September 15, 2013
TGS
tags icon 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

September 14, 2013
TGS
tags icon 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

September 12, 2013
TGS
tags icon 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

September 10, 2013
TGS
tags icon 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

September 8, 2013
TGS
tags icon 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

September 2, 2013
TGS
tags icon 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

September 1, 2013
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

September 1, 2013
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

August 14, 2013
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

August 12, 2013
Chopra, Satinder Marfurt, Kurt

Key processing techniques for pre-salt plays

August 2, 2013
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

June 13, 2013
Wilfred Whiteside, Bin Wang, Helge Bondeson, Zhiming Li

Seabed Sampling for Stratigraphy and Seep Studies Offshore Greenland and Norway

June 13, 2013
S. Polteau , S. Planke, R. Myklebust, Gulnara Hickman

Practical Aspects of Least-squares Reverse Time Migration

June 13, 2013
S. Dong, S. Suh, B. Wang

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

June 13, 2013
Hassan Masoomzadeh, Nick Woodburn

Seabed Sampling for Stratigraphy and Seep Studies Offshore Greenland and Norway

June 12, 2013
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

June 11, 2013
Yang He, A. Gersztenkorn, S. Yang, Bin Wang, Xiang Xiao

Practical aspects of least-squares reverse time migration

June 8, 2013
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

June 6, 2013
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

June 5, 2013
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

June 3, 2013
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

June 2, 2013
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

May 13, 2013
Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang
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Seismic attribute expression of differential compaction

May 13, 2013
Chopra, Satinder Marfurt, Kurt
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Shale gas reservoir characterization workflows

May 13, 2013
Chopra, Satinder Marfurt, Kurt
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Poisson Impedance : A promising tool for determination of sand quality.

May 13, 2013
Chopra, Satinder Sharma, Ritesh Kumar
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New Attribute for determination of lithology and brittleness

May 13, 2013
Chopra, Satinder Sharma, Ritesh Kumar
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Fracture detection via azimuthal analysis of seismic data: snake oil orsilver bullet?

May 13, 2013
Mike Perz, Peter Cary, Xinxiang Li, Satinder Chopra
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Enabling high payback IOR: Value creation through PRM

April 1, 2013
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

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

April 1, 2013
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

February 1, 2013
Andrew McBarnet
Andrew McBarnet assesses the state of the marine seismic business and where it is going in 2013.

New approach to basin formation temperature modeling

December 1, 2012
Pete Dotsey
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

December 1, 2012
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

December 1, 2012
MARTIN BETT
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

November 26, 2012
Arcis Seismic Solutions
tags icon 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

November 25, 2012
Arcis Seismic Solutions
tags icon 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

November 24, 2012
TGS
tags icon 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

November 23, 2012
TGS
tags icon 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

November 21, 2012
Chuck Ursenbach
tags icon 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?

November 21, 2012
TGS
tags icon 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

November 20, 2012
TGS
tags icon 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

November 19, 2012
TGS
tags icon 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

November 18, 2012
TGS
tags icon 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

November 17, 2012
Arcis Seismic Solutions
tags icon 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

November 16, 2012
TGS
tags icon 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

November 15, 2012
TGS
tags icon 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

November 14, 2012
TGS
tags icon 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

November 12, 2012
TGS
tags icon 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

November 10, 2012
TGS
tags icon 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

November 7, 2012
Wilfred Whiteside
tags icon 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

November 6, 2012
TGS
tags icon 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

November 5, 2012
TGS
tags icon 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

November 3, 2012
Peter Cary
tags icon 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

November 1, 2012
Simon Baldock and Nick Myziuk
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

September 22, 2012
Arcis Seismic Solutions
tags icon 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

September 5, 2012
TGS
The structural style of the African Atlantic margin shows significant differences between the passive rifted Northwest African Atlantic Margin (offshore.

Orthogonal wide azimuth surveys:

September 1, 2012
Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
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

September 1, 2012
Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
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

June 14, 2012
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

June 7, 2012
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

June 4, 2012
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

June 2, 2012
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

April 1, 2012
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

February 21, 2012
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

February 2, 2012
MARTIN BETT
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

January 1, 2012
Jianli Song, Cristina Reta-Tang, Xuening Ma, Jim Wilhite and Laurie Geiger
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

October 1, 2011
Xuening Ma, Bin Wang, Cristina Reta-Tang, Wilfred Whiteside, and Zhiming Li
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

October 1, 2011
Bin Wang, Jun Cai, Manhong Guo, Chuck Mason, Sampath Gajawada, and Duryodhan Epili
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

September 21, 2011
Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
tags icon 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

September 19, 2011
TGS
tags icon 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

September 17, 2011
TGS
tags icon 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

September 17, 2011
TGS
tags icon 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

September 16, 2011
TGS
tags icon 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

September 16, 2011
Sang Suh
tags icon 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

September 14, 2011
TGS
tags icon 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

September 13, 2011
TGS
tags icon 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

September 12, 2011
TGS
tags icon 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

September 10, 2011
TGS
tags icon 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

September 8, 2011
TGS
tags icon 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

September 6, 2011
TGS
tags icon 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

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

Complex salt model building using a combination of interactive imaging and layerstripping RTM

July 1, 2011
Bin Wang, Chuck Mason, Kwangjin Yoon, Jean Ji, Jun Cai, Sang Suh and Zhiming Li
A new methodology for building salt velocity models is proposed that allows effective testing of different salt interpretation scenarios. In this.

New insights into prospectivity of Liberia-Sierra Leone Basin because of improvements in seismic acquisition and processing

June 1, 2011
Peter Conn and Gary Rodriguez
This paper examines how the understanding of the prospectivity of the Liberia-Sierra Leone Basin has developed over the last 40 years largely due to.

Modelling low velocities in carbonate karst zones and improving sub-karst images in the Gulf of Mexico

May 11, 2011
TGS
A velocity anomaly zone with high contrasts and small wave length variations is often a challenge for conventional depth imaging. It requires model.

Horizon and fault constrained tomography to model fault induced velocity discontinuities in the hoop fault complex area

May 9, 2011
TGS
We present a case study that uses different methods of addressing a sharp velocity contrast across a major fault boundary in the southwestern Barents Sea..

Automated RTM-based DIT scans for salt interpretation and model building

May 2, 2011
TGS
Reverse Time Migration (RTM) based Delayed Imaging Time (DIT) scans have been used routinely in production to update velocity models in subsalt or low.

Improved imaging

April 1, 2011
Peter Conn and Gary Rodriguez
This paper examines how the understanding of the prospectivity of the Liberia-Sierra Leone Basin has developed over the last 40 years largely due to.

Logs reveal Marcellus sweet spots

March 1, 2011
Pete Dotsey
Sweet spots in the Marcellus gas shale trend are being mapped by performing geologic and petrophysical evaluation and interpretation of well log data. Log.

Imaging sub-basalt palaeocene, mesozoic and palaeozoic targets in the deep water UKCS margin: Combining effective reprocessing strategies with new deep towed acquiston

November 9, 2010
TGS
In 2009 TGS acquired 2,947 km of 2D long-offset multi-client data in the Atlantic Margin across the far northeastern part of the Faroe-Shetland Basin.

Processing Challenges from Arctic Latitudes: Attenuation of Diffraction Multiples from Ice-scouring Tracks

November 8, 2010
Shell
Over the past 10 years TGS has built up a substantial geophysical database offshore Greenland. This includes over 64,000km of 2D seismic, much of which.

Greenland - Summary of hydrocarbon geology and structural elements

November 7, 2010
TGS
The sedimentary basins in the Baffin Sea, Davies Strait and Labrador Sea are surrounded by old continents consisting of 2.4 to 3.6 bill year Proterozoic.

Amplitude preserving demultiple in the Barents Sea over the Hoop Fault Complex: Deconstructing SRME and a new alternative method for stacking the near offsets

November 2, 2010
TGS
In 2009 TGS acquired 2,770 km2 of multi-client seismic data in the southwestern Barents Sea across the Hoop Fault Complex covering acreage nominated in.

Salt geology and hydrocarbon plays in the northeastern Gulf of Mexico

November 1, 2010
Abu Chowdbury
The source rock for the hydrocarbons in the Upper Jurassic, Cretaceous, and Tertiary reservoirs in the eastern Gulf of Mexico is postulated to be Upper.

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

October 17, 2010
TGS
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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

October 15, 2010
TGS
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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

October 12, 2010
TGS
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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

October 11, 2010
TGS
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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

October 8, 2010
TGS
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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

October 7, 2010
TGS
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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

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

Benin Ultradeep seismic study reveals transform margin and potential hydrocarbon prospectivity

September 10, 2010
TGS
The Benin Ultradeep seismic survey was acquired by TGS in 2009. 2D migrated seismic data shows the boundary between oceanic and stretched continental.

Depositional Environment and Structural Style of Permian and Triassic Sequences of Wrangel Island, Russian Arctic

September 5, 2010
TGS
Chukchi and East Siberian Seas region represents one of the most remote and poorly studied areas of East Arctic. Wrangel Island is located between East.

The Structure of the Wrangel Arch (Russian Chukchi Sea), Based on Marine Seismic and Onshore Observations

September 3, 2010
TGS
Wrangel Arch represents the extensive (more, than 500 km) ~ E-W trending oshore basement high, separating the well-known shelf depressions: North and.

Lows and highs: using low frequencies and improved velocity tools to image complex ridges and basement highs in the Faroe-Shetland Basin

September 1, 2010
Anthony Hardwick, Tom Travis, Simon Stokes and Matthew Hart
In January 2010 TGS completed the reprocessing of two regional long offset 2D multi-client seismic surveys in the Faroe-Shetland Basin (FSB). This.

Complex-salt model building using a combination of interactive beam migration and layer-stripping RTM

June 8, 2010
TGS
A new salt velocity model building methodology is proposed which allows effective testing of different salt interpretation scenarios. In this methodology,.

Anisotropic Depth Migration and High-Resolution Tomography in Gulf of Mexico: A Case History

June 6, 2010
TGS
We present a case study of an anisotropic prestack depth migration (APSDM) project which used high-resolution, shallow tomography and anisotropic model.

The Structural Evolution and Tectonic Development of the Laptev Sea Region in Mesozoic and Cenozoic

June 5, 2010
TGS
This study is based on the series of field works on Bel kov Island (Eastern Laptev Sea region) and Khatanga Bay area (Western Laptev Sea region). It is.

Improved Sub-basalt Structural Imaging in the Faroe-Shetland Basin Using Full Sequence Migration Multi-velocity Analysis

June 3, 2010
TGS
It is widely accepted that the key to successful sub-basalt imaging in the Atlantic Margin region is to generate as much low frequency energy as possible..

The prospectivity of Offshore Sierra Leone Using Newly Acquired 3D data

April 6, 2010
TGS
Based on a previous 2D seismic survey in offshore Sierra Leone and Liberia revealing the exploration potential of the margin, a 3D long offset survey in.

Western Laptev Sea Region Framework - Structural Style and Timing of Deformation

April 2, 2010
TGS
The Laptev Sea region is one of the remote and geologically complex areas of Russian Eastern Arctic. According to the existing seismic data, a number of.

Full wave-equation methods for complex imaging challenges

March 1, 2010
PAUL WILLIAMSON, BIN WANG, DIMITRI BEVC, IAN JONES
Despite being at the end of a long and full Annual Meeting week, the workshop “Full wave-equation methods for complex imaging challenges,” held 30 October.

West of Shetland: Improved sub-basalt imaging

February 1, 2010
TGS
Extensive thick sequences of basalt dominate the northwest flank of the Faroe Shetland Basin. Recent reprocessing of this long offset data dramatically.

Cluster programming for reverse time migration

January 1, 2010
SANG YONG SUH, ALEX YEH, BIN WANG, JUN CAI, KWANGJIN YOON, and ZHIMING LI
Reverse time migration (RTM) is well suited for imaging steep dips in areas with high velocity contrast. In order to image steep dips at the correct.

Fast 3D target-oriented reverse-time datuming

December 1, 2009
Shuqian Dong, Yi Luo, Xiang Xiao , Sergio Chávez-Pérez , and Gerard T. Schuster
Imaging of subsalt sediments is a challenge for traditional migration methods such as Kirchhoff and one-way waveequation migration. Consequently, the more.

Subsalt velocity update and composite imaging using reverse-time-migration based delayed-imaging-time scan

December 1, 2009
Bin Wang, Chuck Mason, Manhong Guo, Huimin Guan, Kwangjin Yoon, and Zhiming Li
Subsalt wave-equation based migration (WEM) scan is an effective way for subsalt velocity updating, and has become an industry standard practice; however,.

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

October 21, 2009
TGS
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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

October 18, 2009
TGS
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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.

An Integrated Approach to Hydrocarbon Prospectivity in the South Western Barents Sea

October 18, 2009
TGS
Large areas of the south western Barents Sea remain unexplored. An integrated approach to the understanding of the south western Barents Sea is presented.

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

October 17, 2009
TGS
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