文章基本信息

标题：Reservoir Characterization Using Acoustic Impedance Inversion and Multi-Attribute Analysis in Nias Waters, North Sumatra
其他标题：Karakterisasi Reservoar Menggunakan Inversi Impedansi Akustik dan Analisis Multiatribut di Perairan Nias, Sumatera Utara
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作者：Fathkhurozak Yunanda Rifai ; Fathkhurozak Yunanda Rifai ; Tumpal Bernhard Nainggolan 等
期刊名称：Bulletin of the Marine Geology
印刷版ISSN：1410-6175
电子版ISSN：2527-8843
出版年度：2019
卷号：34
期号：1
页码：51-62
DOI：10.32693/bomg.34.1.2019.637
语种：English
出版社：Marine Geological Institute of Indonesia
摘要：Seismic method is one of the most frequently applied geophysical methods in the process of oil and gas exploration. This research is conducted in Nias Waters, North Sumatra using one line 2D post-stack time migration seismic section and two wells data. Reservoir characterization is carried out to obtain physical parameters of rocks affected by fluid and rock lithology. Seismic inversion is used as a technique to create acoustic impedance distribution using seismic data as input and well data as control. As final product, multiattribute analysis is applied to integrate of inversion results with seismic data to determine the lateral distribution of other parameters contained in well data. In this research, multi-attribute analysis is used to determine the distribution of NPHI as a validation of hydrocarbon source rocks. In that area, there is a gas hydrocarbon prospect in limestone lithology in depth around 1450 ms. Based on the results of sensitivity analysis, cross-plot between acoustic impedance and NPHI are sensitive in separating rock lithology, the target rock in the form of limestone has physical characteristics in the form of acoustic impedance values ??in the range of 20,000-49,000 ((ft/s)*(g/cc)) and NPHI values in the range of 5-35 %. While the results of the cross-plot between the acoustic impedance and resistivity are able to separate fluid-containing rocks with resistivity values ??in the range about 18-30 ohmm. The result of acoustic impedance inversion using the model based method shows the potential for hydrocarbons in the well FYR-1 with acoustic impedance in the range 21,469-22,881 ((ft/s)*(gr/cc)).
其他摘要：Metode seismik adalah salah satu metode geofisika terapan yang paling sering digunakan dalam proses ekplorasi minyak dan gas bumi. Penelitian ini dilakukan di Perairan Nias, Sumatera Utara menggunakan satu buah lintasan data seismik 2D dan dua buah data s
关键词：multi-attribute;limestone;acoustic impedance inversion;resistivity;Nias Waters
其他关键词：multiatribut;batugamping;inversi impedansi akustik;resistivitas;Perairan Nias