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The AAPG/Datapages Combined Publications Database

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Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction

J. Pinchin, M. Bayly

Petroleum Exploration Society of Australia (PESA)

.... by ray tracing to each model. These were then sorted into offset-dependant gathers and velocity analysis was carried out by means of both conventional...

1989

Synthetic-data-driven deep learning method for elastic parameter inversion

Shuai Sun, Luanxiao Zhao, Huaizhen Chen, Zhiliang He, Jianhua Geng

International Meeting for Applied Geoscience and Energy (IMAGE)

... and randomly combine to form a series of reflection coefficient sequences, and synthesize pre-stack AVO gathers using the Zoeppritz equation. The generative...

2023

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

.... The advantage of using EOM is the starting velocity in update procedures that are obtained from the Common Scatter Point gathers. We showed a P-P...

2014

Abstract: Optimising Reservoir Characterisation Through Seismic Data Conditioning: A Case Study of Block22/NCMA4, Trinidad; #90238 (2015)

Dale Baptiste, Russ Creath, and Vishal Nagassar

Search and Discovery.com

... response at the key reservoirs using Zoeppritz’s equations. Synthetic CMP gathers were then generated and compared to actual seismic CMPs at the key...

2015

Midland Basin Spraberry Exploration Using High Resolution Elastic Inversion; #11013 (2017)

Yasser Metwally, Richard Koseluk, John Castagna

Search and Discovery.com

... seismic data to 7-100 Hz through the inversion process. The results were validated using well log data. Rock physics analysis of the well logs suggests...

2017

Abstract: Analysis Of Surface Seismic Multi Wave Modes (Pp, P-Sv And Sv-Sv) And Simultaneous 3d 3c Vsp: A Winning Pair; #90254 (2016)

Michel Denis, Laurence Nicoletis, Philippe Feugere, Eric Suaudeau

Search and Discovery.com

... it converts back into P mode in the WZ. The SV-SV mode is also present on surface seismic and NMO corrected gathers with SV velocity show coherent events...

2016

Seismic Image Enhancement of the Banyu Urip Carbonate Buildup, Cepu KKS, With Effective Data Denoise and Q-Compensated PSDM

Gene Skeith, Peter Traynin, J. M. Reilly, Mike Rainwater, Parada Devy Silitonga

Indonesian Petroleum Association

... estimated using PSDM migrated gathers. Inside the carbonate buildup, gather quality was so poor that a velocity scanning technique was used...

2008

Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth

emamedov

Search and Discovery.com

... volume with an optimum image that also yields accurate reflector depths. Velocity updates employed traditional image-gather analysis (Zhu et al...

Unknown

Integrated Workflow for Fracture Characterization ; From Well Bore Analysis, Post-Stack Geometrical Attributes and Pre-Stack Azimuthal Inversion; Case Study for Fractured Volcanic Reservoir Analysis in Jatibarang Field, North West Java Basin

Aji Rahmat Ginanjar, Andreas Wasi Kuncoro, Muhammad Taslim, Tri Sunarno Irianto, Arrie Kurniawan, Oddy Pranidhana

Indonesian Petroleum Association

... anisotropic velocity analysis for full azimuth gathers using AVAZ: 79th Annual International Meeting, SEG, Expanded Abstracts, 201–205. Rüger, A., 2002...

2017

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... CMP gather using peak frequency variation with offset analysis (PFVO), which is similar to AVO analysis to reduce the stacking effect on the waveform...

2013

Multi-Component Seismic (3C) Data Acquisition … A Case Study from Oil India Ltd. Operational Area in Upper Assam Basin, #40728 (2011)

K. L. Mandal, A. K. Khanna, Dr. R. Dasgupta

Search and Discovery.com

... analysis shows that reservoir sands of Barails have anomalous S wave velocity character that may be identified using converted wave methods. Because...

2011

A denoising diffusion probabilistic modeling (DDPM) approach for predicting CO2 plume evolution from seismic shot gathers

Alexander Y. Sun, Zi Xian Leong, Tieyuan Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... experiments was used. At inference time, our model predicts CO2 saturation distributions using seismic gathers and prediction times as conditions. Unlike...

2023

Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)

Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek

Search and Discovery.com

... into CMP gathers and compared, after 2004 vintage. Data from both surveys were stacked using the velocity model from the 2004 survey and repeatability...

2011

A Breakthrough of Bekapai Converted S-Wave Processing and its Positive Impact to Structural Interpretation

Effendy Siawira, Andy Kristianto, Jaques Bonnafe, Natalia Anggriani, Cepi M. Adam, Zainal Abidin, Firman B. Kurniawan, Supriady, Claudio Strobbia, Yang Liu, Youning Li, Xiagui Miao, Libo Zi, Guishui Wang

Indonesian Petroleum Association

... are limited, and also the first velocity to correct the deepest reflectors push down effect. The FWI model provides a good starting model for reflection...

2015

2D Pre-Stack Depth Migration : Application to Inverted Grabens

C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti

Indonesian Petroleum Association

... and, consequently, classic methods of velocity analysis are inaccurate. To reduce exploration risk in complicated geological zones Total has developed...

1993

Fractured Reservoir Prediction … A Case Study in the Sichuan Basin; #10512 (2013)

Ling Yun, Xiangyu Guo, Qianggong Song, and Weisheng He

Search and Discovery.com

... velocity and flattened CMP gathers are shown in Figure 14a at well position. If using of ZVSP’s velocity for the conventional NMO correction, the same...

2013

Developing an Exploration Tool in a Mature Trend: A 3D AVO Case Study in South Texas

Mark E. Gregg, Charles T. Bukowski, Jr.

Houston Geological Society Bulletin

... than in both the encasing shales and the wet sand. Synthetic CDP gathers were modeled using the log data to predict AVO behavior and are shown in Figure...

2001

Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data, #42076 (2017).

Evans Owah, Christian Rivera, Marjolaine Lahmi, Michel Courbe

Search and Discovery.com

... leading to an improved final migrated subsalt image. The final image using reverse time migration3 (RTM) with surface offset gathers, benefitting...

2017

Depth Imaging „ Seeing the Invisible

Vetle Vinje

GEO ExPro Magazine

... estimation. Residual Move Out (RMO) curves picked on image gathers are the primary input to the reflection tomography methods used in velocity model...

2010

A method for assessing earth model uncertainty in the Taranaki Basin, New Zealand

Edward Lewis, Dennis van der Burg, Tony Martin, Lorenzo Russo, Tony Bell

Petroleum Exploration Society of Australia (PESA)

.... The velocity model building was done using a combination of reflection tomography, full waveform inversion and wavelet shift tomography techniques...

2018

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