FAULTS DETECTION USING SEISMIC COHERENCY ATTRIBUTE

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JAVAHERI NEYSTANAK A.R.; JAVAHERIAN A.A.R.; AMINI NAVID

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Journal: GEOSCIENCES Year:2007 | Volume:17 | Issue:65 Page(s): 48-59

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Information Journal Paper

Title

FAULTS DETECTION USING SEISMIC COHERENCY ATTRIBUTE

Author(s)

JAVAHERI NEYSTANAK A.R. | JAVAHERIAN A.A.R. | AMINI NAVID | Issue Writer Certificate

Keywords

COHERENCY ATTRIBUTEQ3

CROSSCORRELATIONQ2

EIGENSTRUCTUREQ3

FAULTQ2

ANALYSIS CUBEQ3

3D SEISMIC DATAQ3

Abstract

COHERENCY ATTRIBUTE is one of the proper tools in interpretation of structural discontinuities and stratigraphy features in 3-D seismic data. Coherency measurements in three dimensions discuss trace-to-trace similarity and therefore represent interpretable changes in these cases. The similar traces are mapped with high coherence coefficients while anomalies and discontinuities have low coherence coefficients. COHERENCY ATTRIBUTE shows evaluation criterion of lateral changes in the seismic response, caused by variation in structure, stratigraphy, lithology, porosity and the presence of hydrocarbon. Output of this attribute is a coherence cube which illustrates structural discontinuities and stratigraphy features with higher resolution. In this paper, the application of two conventional COHERENCY ATTRIBUTEs based on EIGENSTRUCTURE and CROSSCORRELATION for detection of FAULTs in 3-D synthetic seismic data and actual seismic data is presented.Considering the experimental results, this method has an appropriate response to low SNR for 3-D synthetic models and 3-D actual data. In addition, the comparison of EIGENSTRUCTURE -based COHERENCY ATTRIBUTE method with CROSSCORRELATION-based COHERENCY ATTRIBUTE method indicates the former has higher resolution for detection FAULTs than the latter.

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APA: Copy

JAVAHERI NEYSTANAK, A.R., JAVAHERIAN, A.A.R., & AMINI, NAVID. (2007). FAULTS DETECTION USING SEISMIC COHERENCY ATTRIBUTE. GEOSCIENCES, 17(65), 48-59. SID. https://sid.ir/paper/31611/en

Vancouver: Copy

JAVAHERI NEYSTANAK A.R., JAVAHERIAN A.A.R., AMINI NAVID. FAULTS DETECTION USING SEISMIC COHERENCY ATTRIBUTE. GEOSCIENCES[Internet]. 2007;17(65):48-59. Available from: https://sid.ir/paper/31611/en

IEEE: Copy

A.R. JAVAHERI NEYSTANAK, A.A.R. JAVAHERIAN, and NAVID AMINI, “FAULTS DETECTION USING SEISMIC COHERENCY ATTRIBUTE,” GEOSCIENCES, vol. 17, no. 65, pp. 48–59, 2007, [Online]. Available: https://sid.ir/paper/31611/en

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