Technical Library

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

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Beam-based Interactive Imaging for Salt Interpretation and Salt Model Building

12 November 2008
It is well understood that accurate salt interpretation is critical to subsalt imaging. When reflections from the saltsediment boundaries are not.
SEG

Challenges in Time & Depth: Imaging the Eastern Delta OBC Survey, a Case History

10 November 2008
Immediately offshore of the Mississippi Delta the geological setting conspires with numerous production installations to produce a unique set of problems.
SEG

Impacts of Seismic Anisotropy and Subsalt Velocity Updates in Imaging, Deepwater Gulf of Mexico

09 November 2008
Seismic anisotropy refers to seismic waves traveling with different velocity at different propagation angle, usually in consolidated, shale-prone areas.
SEG

A new multiple subtraction method using the attributes of predicted multiples

09 November 2008
Despite the development of excellent techniques for predicting multiples such as convolution based or wavefield extrapolation based approaches,.
SEG

Localized reverse time migration for salt model building

09 November 2008
Salt model building is a key process for successful subsalt imaging. In complex areas, Reverse Time Migration (RTM) provides better images than One-way.
SEG

Multiple Prediction by Wavefield Extrapolation in Common-P Domain

07 November 2008
Wavefield extrapolation (WFE) multiple prediction typically operates in common shot domain, and is very effective to predict complex multiples such as.
SEG

A Multi-Step Approach for Efficient Reverse-Time Migration

06 November 2008
Reverse-time migration (RTM) provides superior images in areas where there are steep salt flanks or other complex geologic structures. However, the high.
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Enhanced Anisotropic Model Building Methodology and Pre-stack Depth Imaging in Deep Water Gulf Of Mexico: A case history

02 November 2008
We present a case study of anisotropic model building and the resulting accuracy of event placement and improved image quality. Approximately 660 OCS.
SEG

Subsalt Velocity Update Using RTM-based DT Scan

02 November 2008
Subsalt wave-equation based migration (WEM) scan is an effective way for subsalt velocity updating, and has become an industry standard practice; however,.
SEG