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伴随着克拉玛依油田勘探开发程度的不断提高,可供钻探的构造圈闭数量不断减少,岩性圈闭逐渐成为主要的勘探目标。滑塌浊积岩岩性圈闭是克拉玛依油田五—八区重要的岩性圈闭勘探目标之一,同时也是储层预测的难点之一。地震属性分析技术可以从地震资料中提取隐含的有用信息,这些信息为解决复杂地质体的储层预测提供了一种有效的分析手段。本文在实践的基础上提出:结合区域地质概况、沉积相研究,在地震剖面上根据反射波同相轴的外部反射特征及内部反射结构识别浊积岩,再综合运用地震属性分析技术预测浊积岩岩性圈闭及确定其展布,是在无井地区预测浊积岩岩性圈闭的一种有效方法。
With the continuous improvement of exploration and development in Karamay Oilfield, the number of structural traps available for drilling has been declining. Lithologic traps have gradually become the major exploration targets. The slump-turbidite lithologic traps are one of the most important lithologic traps in the Karamay Oilfield, and are also one of the difficulties in reservoir prediction. Seismic attribute analysis technology can extract implicit useful information from seismic data, which provides an effective analysis method for reservoir prediction of complicated geological bodies. On the basis of practice, this paper puts forward that based on the study of regional geology and sedimentary facies, the turbidite is identified on the seismic profile based on the external reflection characteristics of the reflected wave events and the internal reflection structure. Then, the seismic attribute analysis technique is used to predict turbidite Lithologic traps and the determination of their distribution are effective methods for predicting turbidite lithologic traps in the borehole area.