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印度尼西亚南苏门答腊盆地Jabung地区西北部油区的Gemah油田Lower Tanglang Aka油层组储层砂体厚度较薄,一般为5~10 m,部分小于5 m,且横向变化快。找准这些储集砂体是油田开发取得油气产量的关键因素;应用地震属性确定砂体分布既是油气开发的关键之一,也是难题之一。将地震波形分类、本征值相干体属性分析等新技术,应用于薄层砂体的识别,据此部署钻井5口,实钻与预测吻合良好,实践证实,结合测井资料,进行地震属性综合分析,是油田开发中识别薄层砂体的有效方法。
The Lower Tanglang Aka reservoir of the Gemah oilfield in the northwestern Jabung area of the South Sumatra basin in South Sumatra, Indonesia has a relatively thin thickness, typically 5 to 10 m, partly less than 5 m, and a rapid lateral variation. Finding these reservoir sand bodies is the key factor for oil and gas production in oilfield development. Determining the distribution of sand bodies by using seismic attributes is not only one of the key issues in the development of oil and gas, but also one of the problems. Applying new techniques, such as seismic waveform classification and eigenvalue coherence analysis, to the identification of thin sand bodies, 5 drilling wells are deployed, and the real drilling is in good agreement with the prediction. Practice has proved that, in combination with logging data, seismic attributes Comprehensive analysis is an effective method for identifying thin sand bodies in oilfield development.