Enhancing coherency analysis for fault detection and mapping using 3D diffraction imaging
Access Status
Date
2018Type
Metadata
Show full item recordAbstract
© 1996-2018 Society of Exploration Geophysicists. All rights reserved. Automatic detection of geological discontinuities such as small throw faults, and pinch-outs is an important problem in the interpretation of 3D seismic data. This is commonly done using coherency analysis. However coherency may be affected by noise, which may create false anomalies. We propose a new interpretation workflow for the detection and mapping of faults, which enhances the coherency-type analysis with identification and detection of diffractions produced by the discontinuities. The algorithm utilizes migrated and unmigrated stacked seismic volumes and the cube of stacking (NMO) velocities. Tests on a simple 2.5 D model show that the method is capable in detecting and mapping of faults below seismic resolution.
Citation
Source Title
ISBN
School
Collection
Related items
Showing items related by title, author, creator and subject.
-
Chehrazi, A.; Rahimpour-Bonab, H.; Rezaee, Reza (2013)In this study of the Dorood oil field, offshore Iran, 3D seismic data were utilized to identify a complex fault pattern in the highly faulted and fractured Fahliyan Formation. To enhance data quality and improve attribute ...
-
Kamiel, B.; Howard, Ian (2014)Centrifugal pumps are one of the rotating machines that are widely used in various industries such as oil and gas, petrochemical, water treatment, power generation, agriculture, and fertilizers. During its operation, it ...
-
Khalid, Muhammad Imran (2010)In the 21st Century, water is already a limited and valuable resource, in particular the limited availability of fresh water sources. The projected increase in global population from 6 billion people in 2010 to 9 billion ...