PERBAIKAN MODEL KECEPATAN INTERVAL PADA PROSES MIGRASI DATA SEISMIK DENGAN RESIDUAL CURVATURE ANALYSIS TOMOGRAPHY (RCA TOMORAGPHY)

Abstract

The seismic data processing has aim to get the real structure of seismic section. The quality of seismic image after pre-stack depth migration in area which has geological complexcity depends on accuracy of velocity model. The Residual Curvature Analysis Tomography (RCA Tomography) which one prosesses method for updating interval velocity model. The Residual Curvature Analysis Tomography in refining model of interval velocity at first layer, that is by doing CIG picks at first layer continued with CIG picks of all layer. Result from CIG picks used as an input for RCA Tomography process. If refinement of interval velocity model have come up at each layer hence RCA Tomography process will refine interval velocity model for all layer. Result of this research is interval velocity model at seismic cross section with the image of under earth surface which clearer at survey area “X”. At survey area “X” with crossline 962 and inline 1 there are fault area an anticline such as which seen at target area.