Fault detection using dip-steered multi-trace similarity extraction techniques: Case study using offshore Niger Delta 3D seismic data

Jibrin, B. and Raji, W., 2014. Fault detection using dip-steered multi-trace similarity extraction techniques: Case study using offshore Niger Delta 3D seismic data. Journal of Seismic Exploration, 23: 19-30. Techniques for detecting faults have been applied to a 3D seismic data acquired in the shallow offshore Niger Delta. A volume containing the dip and azimuth of the traces was first computed directly from the data. The data was enhanced by applying filters to compute two structurally-improved volumes containing localized and sub-regional seismic dips respectively. Multi-trace similarity was then computed using the seismic reflection and sub-regional dip data as input. The data highlighted discrete zones of dip and similarity anomalies representing listric normal and counter regional faults with improved visibility of wall-rock volumes. The case study demonstrates the potential benefits of applying dip-steering techniques for the enhanced detection of faults and improved visibility of wall-rock volumes next to the faults.
- Al-Dossary, S. and Marfurt, K.J., 2006. 3D volumetric multi-spectral estimates of reflectorcurvature and rotation. Geophysics, 17 (5): 41-45.
- Bahorich, M.S. and Farmer, S.L., 1995. 3-D seismic coherency for faults and stratigraphic features.The Leading Edge, 14: 1053-1058.
- Brouwer, F. and Huck, A., 2012. An integrated workflow to optimize discontinuity attributes forimaging of faults. Attributes: New views on seismic imaging - Their use in exploration andproduction. Abstr., Ist GCSSEPM Conf., 21: 496-533.
- Chopra, S. and Marfurt, K.J., 2011. Coherence and curvature attributes on preconditioned seismicdata. The Leading Edge, 30: 386-393.
- Hennings, A.T., Martin, R. and Paton, G., 2010. Data conditioning and seismic attribute analysisin the Eagle Ford Shale Play: Examples from Sinor Ranch, Live Oak County. ExpandedAbstr., 80th Ann. Internat. SEG Mtg., Denver.
- Marfurt, K.J., Sudakher, V., Gersztenkorn, A., Crawford, K.D. and Nissen, S.E., 1999. Coherencycalculations in the presence of structural dip. Geophysics, 64: 104-111.
- Qayyum, F., and de Groot, P., 2012. Seismic dips help unlock reservoirs. Am. Oil Gas Rep.:75-79,
- Tingdahl, K.M., 2003. Improving seismic chimney detection using directional attributes. Develop.Petrol. Sci., 51: 157-173.
- Tingdahl, K. and de Groot, P., 2003. Post-stack dip and azimuth processing. J. Seismic Explor.,12: 113-126.
- Tingdahl, K.M. and de Rooij, M., 2005. Semi-automatic detection of faults in 3-D seismic data.Geophys. Prosp., 53: 533-542.