A MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK TO SOLVING THE PROBLEM OF CONFLICTING DIPS-A REAL CASE STUDY

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shahsavani H.; MANN J.; Hubral P.; Piruz I.

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Seminar Paper

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Seminar: IRANIAN GEOPHYSICS CONFERENCE
Year:2014 | Issue:16

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Title

A MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK TO SOLVING THE PROBLEM OF CONFLICTING DIPS-A REAL CASE STUDY

Author(s)

shahsavani H. | MANN J. | Hubral P. | Piruz I. | Issue Writer Certificate

Keywords

STACKING

DIFFRACTION

RAY TRACING

TRAVEL TIME

Abstract

THE COMMON-REFLECTION-SURFACE STACK METHOD PARAMETERIZES AND STACKS SEISMIC REFLECTION EVENTS IN A GENERALIZED STACKING VELOCITY ANALYSIS. IT CONSIDERS A DISCRETE NUMBER OF EVENTS CONTRIBUTING TO A GIVEN STACK SAMPLE SUCH THAT CONFLICTING DIP SITUATIONS CAN BE HANDLED. THE RELIABLE DETECTION OF SUCH SITUATIONS IS DIFFICULT AND MISSED CONTRIBUTIONS TO THE STACKED SECTION CAUSE ARTIFACTS IN A SUBSEQUENT POSTSTACK MIGRATION. AS AN ALTERNATIVE, THE CONFLICTING DIP PROBLEM HAS BEEN ADDRESSED BY EXPLICITLY CONSIDERING A VIRTUALLY CONTINUOUS RANGE OF DIPS WITH A SIMPLIFIED STACKING OPERATOR IN A PROCESS TERMED COMMON- DIFFRACTION-SURFACE STACK. IN ANALOGY TO THE COMMON-REFLECTION-SURFACE STACK, THE COMMON-DIFFRACTION-SURFACE STACK HAS BEEN IMPLEMENTED AND SUCCESSFULLY APPLIED IN A DATA-DRIVEN MANNER BASED ON COHERENCE ANALYSIS IN THE PRESTACK DATA. IN VIEW OF THE COMPUTATIONAL COSTS, WE PRESENT A MORE EFFICIENT MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK DESIGNED TO GENERATE STACK SECTIONS OPTIMIZED TO IMAGE DISCONTINUITIES BY POSTSTACK MIGRATION. THIS APPROACH ONLY REQUIRES A SMOOTH MACRO-VELOCITY MODEL OF MINOR ACCURACY. WE PRESENT OUR RESULTS FOR THE REAL DATA AT THE NORTH OF IRAN AND COMPARE THEM TO THE CRS AND DATA-DRIVEN CDS.

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APA: Copy

shahsavani, H., MANN, J., Hubral, P., & Piruz, I.. (2014). A MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK TO SOLVING THE PROBLEM OF CONFLICTING DIPS-A REAL CASE STUDY. IRANIAN GEOPHYSICS CONFERENCE. SID. https://sid.ir/paper/924721/en

Vancouver: Copy

shahsavani H., MANN J., Hubral P., Piruz I.. A MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK TO SOLVING THE PROBLEM OF CONFLICTING DIPS-A REAL CASE STUDY. 2014. Available from: https://sid.ir/paper/924721/en

IEEE: Copy

H. shahsavani, J. MANN, P. Hubral, and I. Piruz, “A MODEL-BASED APPROACH TO THE COMMON-DIFFRACTION-SURFACE STACK TO SOLVING THE PROBLEM OF CONFLICTING DIPS-A REAL CASE STUDY,” presented at the IRANIAN GEOPHYSICS CONFERENCE. 2014, [Online]. Available: https://sid.ir/paper/924721/en

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