PERBANDINGAN POST STACK TIME MIGRATION METODE FINITE DIFFERENCE DAN METODE KIRCHOFF DENGAN PARAMETER GAP DEKONVOLUSI DATA SEISMIK DARAT 2D LINE “SRDA”

*Sheyza Rery Dynza Anggary  -  Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang, Indonesia
Hernowo Danusaputro  -  Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang, Indonesia
Udi Harmoko  -  Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang, Indonesia
Published: 1 Jan 2015.
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Abstract

ABSTRACT

           Analysis on Post Stack Time Migration (Post-STM) with finite difference method and Kirchoff method with determine gap parameter on deconvolution after stack had been applied to 2D land seismic at line “SRDA”. This research had purpose to applied seismic data processing to get subsurface imaging with high signal-to-noise ratio and analyze how the gap parameter corresponding on deconvolution after stack, and to determine which the appropriate method of migration between migration finite difference and Kirchoff migration in Post Stack Time Migration (Post-STM).

         Gap parameter selected in the deconvolution process after the stack is a gap 24, 32 and 64. Based on the analysis of the three parameters were chosen gap 32 which has the best results because the gap 32 in accordance with the conditions of the data and the effect does not change the condition of reflectors on seismic cross section. While the migration phase, the results better structure when subjected Kirchoff migration method, because it is more obvious than the reflector continuity migration finite difference method.

 

Keywords: Deconvolution after stack, Post Stack Time Migration
Keywords: Deconvolution after stack, Post Stack Time Migration

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