IDENTIFICATION CHARACTERISTICS SANDSTONES TALANGAKAR FORMATION USING INVERSION ACOUSTIC IMPEDANCE ON THE “RIZ” FIELD SOUTH SUMATERA BASIN

RISANDI, RIKI (2013) IDENTIFICATION CHARACTERISTICS SANDSTONES TALANGAKAR FORMATION USING INVERSION ACOUSTIC IMPEDANCE ON THE “RIZ” FIELD SOUTH SUMATERA BASIN. Other thesis, UPN "Veteran" Yogyakarta.

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Abstract

A study by exposing the sandstone reservoir characterization using Acoustic Impedance Inversion method on “RIZ” field Talang akar Formation, of South Sumatera Basin. This study uses 2D post-stack seismic data , 1 well data,1 data checkshot data, 3 data marker, and 3 data horizon. The results of this study are expected to be able to show the location of the reservoir sandstone with good quality and allow a place hidrocarbon accumulation. The purpose of this study was to determine the distribution of reservoir sandstones and define new wells proposed by acoustic impedance values in the field "RIZ". Data processing begins with inputting the data well and 2D seismic data, making crossplot, checkshot correction, wavelet extraction and seismic well tie, picking horizons, initial modeling, analysis, inversion, phase inversion, slicing map and interpret. Acoustic impedance values in the field "RIZ" as a potential reservoir of hydrocarbons contained in the reservoir DST # 2 with acoustic impedance values <30,000 (ft / s) * (g / cc). Distribution of acoustic impedance values reservoir DST # 2 are in some places and trending northwest. Proposed new wells located in the middle of the anticline structure heights are crossed by seismic line 3, trending northeast from the first well and is approximately 1,38 km from wells GF-08. Estimated depth of reservoir DST # 2 1940 ms, or about 2380 m from msl. Keywords: Seismic Inversion, Model Based, Talang Akar Formation

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