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The AAPG/Datapages Combined Publications Database

Showing 20,235 Results. Searched 200,357 documents.

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Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014)

Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff Durand

Search and Discovery.com

... The inputs (RMS Vfast, Vslow, and Vfast-az) can be derived in multiple ways. One way is through orthorhombic velocity analysis (Wang and Wilkinson...

2014

Imaging Complex Structures in Colombia … Full Wave Equation Migration Approach

Hector A. Alfonso, Luis E. Rojas, Weizhong Wang, Jie Zhang, Oz Yilmaz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... lateral consistency in picking the velocity strands. By combining the horizon strands picked in the X-T plane with the velocity strands picked from...

2008

Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)

Emil Blias

Search and Discovery.com

... to estimate shallow velocity structure, (iii) Non-linear horizon based traveltime tomography to improve depth velocity model and (iv) time-dependent velocity...

2015

A Regional Velocity Cube for Depth Conversion on the Northwest Shelf

Maighréad Ní Dheasúna, Mark Ballesteros, James Leven

Petroleum Exploration Society of Australia (PESA)

... in the by wel ls, and in particular, check shot data. Seismic's mu lti-client products. In tota l, over 2.4 million velocity analysis points (VPs), from...

2012

A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... imaging in thrust belt environments Ron Schmid*, Brian Link, Patrick Butler; Kelman Seismic Processing SUMMARY A novel, migration velocity analysis...

1997

EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez

GCAGS Transactions

... present a unique, two-stage velocity estimation workflow, utilizing wave equation focusing analysis and WEM angle gather update, and show how “extreme...

2010

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

.... The depth horizon is conformed after compare the above two PSDM to merge A and B. Finally, a good initial velocity model is built by B and A merged...

2023

A Simple Guide to Depth Conversion: Part II

Ashley Francis

GEO ExPro Magazine

... would indicate a velocity variation unexplained by the model. The residuals are also a direct measure of the depth conversion uncertainty at any horizon...

2018

Importance of Good Time to Depth Conversion Method to Reduce GRV Uncertainties of Producing Fields in the South Sumatra Block, #20494 (2020).

Danar Yudhatama, Aurora Juniarti, Erwin Muhamad Indra Kusumah, Yudi Yanto,

Search and Discovery.com

... with seismic horizon. In the South Sumatra area, the vertical change of interval velocity is observed across formations/ intervals, from the Upper to Lower...

2020

First Results of Common Depth Point Regional Work in the East Border Zone of the Peri-Caspian Basin

V. P. Kan, B. S. Tasybayev

Petroleum Geology: A Digest of Russian Literature

... erosion. Waves reflected from this horizon are multi-phase (up to 8-10). Analysis suggests that this may be due to the presence of two closely spaced...

1979

The Role of Seismic Inversion Modeling in Describing Reservoir Characteristics: A Case Study

William C. Robinson

West Texas Geological Society

... are unlikely to complicate the seismic analysis. Figure 4. shows the sonic log with the velocity calculations; the synthetic seismogram and the Inversion...

1999

Rapid Multiple-Scenario Depth Structure Risk Analysis Case Study in Cuulong Basin, Vietnam

Nguyen Nam, Hong Shien Lee

Indonesian Petroleum Association

... then used to generate maps in velocity and depth domain. Eight depth structure maps were compared for uncertainty analysis and then for choosing the base...

2008

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

Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth

Isabel Cristina Florez, Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of the velocity model to optimize imaging—employed traditional image-gather analysis (Zhu et al., 1998). We followed the manual-tomography methodology...

2006

PS

Search and Discovery.com

N/A

Extended Abstract: Integrated Geological and Geophysical Modeling in the Gulf of Mexico

Tim Matava, B. Keys, D. Foster, D. Ashabranner

Houston Geological Society Bulletin

... models together into an integrated model. The geological model has a strong control on the velocity model for migrating the pre-stack depth volumes...

2016

Abstract: Advanced Seismic Acquisition Survey Design Based on Illumination Analysis; #90319 (2018)

Pavel Golikov, Emad Hemyari, Abdulaziz Almuhaidib

Search and Discovery.com

... geostatistical methods. In case when a velocity model is available, two main products of the illumination analysis can be produced: illumination map at target...

2018

Seismic velocity detrending and well calibration workflow

Gastón Bejarano Gerke

International Meeting for Applied Geoscience and Energy (IMAGE)

...) are extracted along these horizons from the seismic velocity data. This ensures a horizon-consistent application of the Dix formula. Fourth...

2024

AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods

Alan R. Huffman

AAPG Special Volumes

... (Bell, 2002). Beyond this simple approach to velocity analysis lies a range of more sophisticated techniques including horizon-keyed velocity...

2001

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