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The AAPG/Datapages Combined Publications Database

Showing 16,567 Results. Searched 195,452 documents.

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The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... image using a seismic method, it needs a velocity model that is able to define appropriately the velocity of wave propagation in the subsurface...

2018

Fault Shadow Issues and Resolution in Model and Real Data

Andrew J. Davidoff, Ika Ratna Novianti

Indonesian Petroleum Association

.... A model has been built using a simple velocity field with a high-angle normal fault. A variety of different types of ray tracing experiments were...

2002

Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing

R. Malcolm Lansley

AAPG Special Volumes

... true common reflection point gathers and eliminates the dip dependence of the stacking velocities. It is, however, very sensitive to changes in both...

2011

Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia

David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim

Indonesian Petroleum Association

... reflection tomography techniques provide long to mid wavelength velocity updates but generally fail in updating shallow water environments while giving...

2019

Abstracts: Attenuating 2D Noise in a 3D World; #90173 (2015)

David C. Henley

Search and Discovery.com

... coherent noise from a 3D source gather using 2D radial trace filtering. Introduction The objective of exploration reflection seismology is to create...

2015

Exploration and Development based on RTH Technology and AI

Gennady Erokhin, Mariia Erokhina, Kirill Safran, Alexandre Iakovlev

Unconventional Resources Technology Conference (URTEC)

... in common image gathers, using the time-reversal algorithms and on synthesis a seismic attributes. It is shown that a detailed analysis of the joint...

2023

High-Resolution Model Building in a Full-Azimuth Nodal Survey in the GOM

Sandip Chattopadhyay, Gary Rodriguez, Tefera Eshete, Guy Hilburn, TGS

GEO ExPro Magazine

... to was the starting velocity model for the project. The velocity anisotropy. Therefore, common image gathers (CIGs) model was converted to the depth...

2016

Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"

Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng

Indonesian Petroleum Association

... reflection angles are retained in processing for studies such as amplitude variation with offset (AVO) and depth conversion velocity analysis. Anisotropic...

2000

Abstract: An Azimuthal-AVO-Compliant 3D Land Seismic Processing Flow; #90171 (2013)

David Gray, Darren Schmidt, Nirupama Nagarajappa, Charles Ursenbach, and Jon Downton

Search and Discovery.com

... azimuthal velocity variations (left) and after application of azimuthal velocities (right). Prior to AVO analysis, it is important to remove the effects...

2013

Abstracts: A Non-Linear Conjugate Gradient (CG) Method to Solve for Vp, Vs and Density from Seismic Elastic Impedance; #90173 (2015)

Yexin Liu and Zhuoheng Chen

Search and Discovery.com

... equation from all available EI gathers to estimate compressional velocity, shear velocity and density, and ratio and Poisson’s ratio, which allows...

2015

Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods

Allan T. Long, R. C. Anderson

AAPG Special Volumes

... Seismic data processing for AVO requires that certain steps be applied to common depth point (CDP) gathers (the individual traces prior to stacking...

1992

Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16)

S. Birdus, A. Artyomov, L. Li, S. Xin

Geological Society of Malaysia (GSM)

... such anomalies using this knowledge. Geomechanical velocity modelling consists of 3 major steps: 1. Determine the sources of anomalous geo-stress. If we know...

2012

Benefits and uplift of focused post-migration gather conditioning over prospect specific areas - An Indonesian case study

David Jessup, Dave Goulding, Andy Kalil

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... The input data for the conditioning were raw PSDM TWT migrated gathers which were analysed using full-volume QC attributes in order to design an optimized...

2022

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

... × 125M GRID SORTING OF THE EIGHT GROUPS OF 30 FOLD GATHERS INTO 240 FOLD "SUPER GATHER" NMO CORRECTION USING 3D STACKING VELOCITY FIELD RADON...

1994

Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic

Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim

Unconventional Resources Technology Conference (URTEC)

... modeling is performed by two point ray tracing following the velocity approximations of Fomel (2004). For modeling, layers are constructed...

2016

High-EffortŽ Seismic Acquisition: Improving Image Detail; #41568 (2015)

David C. Henley, Kevin Hall, Henry Bland, Eric Gallant, Gary Margrave, Malcolm Bertram

Search and Discovery.com

... short period multiples, and equalize reflection strength over angle (Henley, 2004). Moveout velocity and statics NMO Velocity analysis and statics...

2015

Depth Imaging Coil Data: Multi Azimuthal Tomographic Earth Model Building and Imaging of Tulip (Paper A15)

S. Chen, M. Buia, L. Livraghi, M. Bakhrudin, M. Tham, M. Bayly, S. Ng, O. Zdraveva

Geological Society of Malaysia (GSM)

..., but also correctly account for the source to receiver azimuth contribution of traces in common image point gathers (CIPs) when performing residual...

2012

Marine Multicomponent Seismic – The New Issues in the Developing Revolution

Jason Robinson

Indonesian Petroleum Association

..., A., 1988. Common reflection point data stacking technique for converted wave. Geophysical Prospecting, v. 36, pp. 671-688. Thomsen, L., 2001. Seismic...

2002

Q tomography workflow: Land case study in the Eagle Ford Play

Itai Sharabi, Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... for the refraction data and the residual moveouts automatically picked along full-azimuth reflection angle domain depth common image gathers (Shustak...

2023

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