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The AAPG/Datapages Combined Publications Database

Showing 33,130 Results. Searched 200,357 documents.

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Abstract: Quantitative Interpretation on Presalt Carbonate Reservoir From Deepwater Offshore Angola; #90310 (2017)

Chyril Anwwar Ibrahim, Trisakti Kurniawan

Search and Discovery.com

.... A Kirchhoff pre-stack depth migration with input of anisotropic velocity model were used in order to produce the seismic data that would have better...

2017

Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)

Morgan Brown

Search and Discovery.com

..., and expectations must be calibrated. 4) Dense, iterative velocity analysis is key to PSDM success. 5) Anisotropic PSDM is the only rigorous way to handle...

2012

Reflection or Refraction?

Aleksandr Nikitin, Nikolay Amelin, Sergei Pokrovskii, Andrey Lekomtsev

GEO ExPro Magazine

... a refracted wavebased velocity model can be a better, more stable and reliable alternative for signal enhancement data processing, migration procedures...

2017

Abstract: Depth Imaging of the Drake Structure in the Ultra-Deep Shelf Play of the Gulf of Mexico

George Zemlicka, Robert J. Bruce, Peter Gale, John E. G. Savage, Karen L. Sherlock, Dong-Sheng Li, Mike Plumlee, William J. Schneider, Glen Denyer, Randol Haworth, Jay Menard, Ricardo J. De Campos

GCAGS Transactions

... to the high quality depth image was the construction of a detailed velocity model, with sediment velocities derived from tomography and migration...

2006

Chapter Ten-part 2: Depth Conversion

Leslie R. Denham, Dave K. Agarwal

AAPG Special Volumes

... as horizontally (it is not isotropic). And the layers used for velocity analysis are rarely uniform. Finally, the reflections are not, in general, horizontal...

2011

Incorporation of Geology, Wells, and Rock Physics into Anisotropy Estimation for Seismic Depth Imaging Enables True Earth ModelŽ, #40828 (2011)

Huyen Bui, Peck-Hwa David Ng, Jenny Zhou, Chih-Wen Kue, Mart Smith

Search and Discovery.com

... be wrong at zero offset because the most important parameter that can cause the wrong depth is the vertical seismic velocity used in migration. To create...

2011

NMO Application in VTI Media: Effective and Intrinsic Eta (Geophysics Paper 6)

Joel Starr, Maz Farouki

Geological Society of Malaysia (GSM)

... Brazil. Values of ηeff range from 0 – 0.141. The ηeff field was determined by residual migration velocity analysis using the Alkhalifah NMO equation...

2008

Scale Modeling of Bed Forms: Abstract

John B. Southard, Lawrence A. Boguchwal

Dallas Geological Society

... d, mean flow velocity U, fluid density p and viscosity μ, sediment size D and density ps, and gravity g), dimensional analysis provides four model...

1977

Scale Modeling of Bed Forms: Abstract

John B. Southard, Lawrence A. Boguchwal

CSPG Special Publications

... d, mean flow velocity U, fluid density p and viscosity μ, sediment size D and density ps, and gravity g), dimensional analysis provides four model...

1977

Overview of Exploration Geophysics: Recent Breakthroughs and Challenging New Problems: Hydrocarbons

B. S. Flowers

AAPG Special Volumes

..., but accurate velocity measurements that will give proper depth conversions are not possible. The ordinary time-migration section produced with migration-before...

1976

Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems

B. S. Flowers

AAPG Bulletin

... enough to be visible, but accurate velocity measurements that will give proper depth conversions are not possible. The ordinary time-migration...

1976

Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)

Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly

Geological Society of Malaysia (GSM)

...; velocity model building and migration methods applied to successfully image the data. The basement fractures are present at a variety of scales but to aid...

2011

Abstract: Prestack Depth Migration with the Gabor Transform; #90211 (2015)

Yongwang Ma and Gary Margrave

Search and Discovery.com

... migration, dealing with lateral velocity variation while keeping the advantages of the phase-shift method, i.e., accuracy and efficiency. Other phase-shift...

2015

Seismic Time to Depth Conversion and Uncertainty Analysis for Horizon Prediction in a Proposed Well-Site of Sungai Gelam Field, Jambi Subbasin

Muhamad Wildan P., Imam Muda Gunawan, Andry Pujiriyanto, Sudarmaji

Indonesian Petroleum Association

... depending on the purpose and the availability of existing data sources. In seismic data, processing in the form of migration also involves velocity modeling...

2013

Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... precise velocity model combined with the appropriate migration algorithm can focus the recorded energy to its true subsurface locations. However...

2016

Critical Analysis of Stack Seismic Systems: DISCUSSION

Richard H. Hopkins

AAPG Bulletin

...Critical Analysis of Stack Seismic Systems: DISCUSSION Richard H. Hopkins 1967 2475 2475 51 12. (December) Nugent, L. E., 1967 Critical analysis...

1967

Velocity-depth trends in Mesozoic and Cenozoic sediments from the Norwegian Shelf: Discussion

Peter Japsen

AAPG Bulletin

...) present log data from 60 wells on the Norwegian Shelf to investigate velocity-depth trends in sedimentary rocks. They present an interesting analysis...

2006

Envelope full-waveform inversion of marine seismic data

Kai Xiong, David Lumley, Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity (Vp) with 2D acoustic FWI and IEI. Figure 3a shows the initial velocity model obtained from migration velocity analysis (MVA). The shot position...

2022

Seismic Foldout: Revealing a Promising New Play Concept in the Salar Basin, Offshore Canada

Yermek Balabekov, Susana Tierrablanca, Sriram Arasanipalai, Nizar Chemingui, PGS

GEO ExPro Magazine

... and provide better property constraints for QI analysis and anomaly interpretation. The high-resolution velocity model constrains lithologic...

2023

Abstract: Angle Gathers for Gaussian Beam Depth Migration; #90211 (2015)

Samuel Gray

Search and Discovery.com

... importance to prestack depth migration. They allow seismic velocity estimation by tomography and other methods, and they allow the analysis of seismic...

2015

Simultaneous inversion of velocity and reflectivity for enhanced seismic imaging

Yang Yang, Sriram Arasanipalai, Nizar Chemingui, Neil Paddy, Nicholas Montevecchi, David McCallum

International Meeting for Applied Geoscience and Energy (IMAGE)

... to performing Full Waveform Inversion (FWI) and LeastSquares Reverse Time Migration (LS-RTM), which provides high fidelity velocity and reflectivity models...

2022

True Amplitude Preserved Multi-Azimuth Pre-Stack Depth Migration for Structural and Reservoir Characterization (Sisi-Nubi Field, Indonesia)

M. Baturin, F. Bertini, J. Bonnafé, A. Riou, S. Birdus, Y. Yin

Indonesian Petroleum Association

... in the shallow interval; these velocity and imagery artifacts were not fully solved by the initial 2004-2005 Pre-Stack Time Migration processing (Fig. 5...

2011

New Integrated Workflows for Improved Pore Pressure Prediction and Seismic Imaging, #41705 (2015).

Marek Kacewicz, Sankar Muhuri, Weihong Fei

Search and Discovery.com

... stress and velocity models, inversion for new velocities / anisotropy, and pre-stack depth migration. The process starts in the shallow section where...

2015

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