泌阳凹陷古城东南部岩性圈闭识别方法

泌阳凹陷古城东南部地区构造圈闭具有规模小、幅度低的特点,其油气分布不仅受构造的控制,同时也受到岩性组合等因素的控制。因此,为了更准确地提供钻探目标,查清古城东南部地区岩性圈闭的空间展布特征是十分关键的。以研究区钻井、测井、地震等资料为基础,利用小层沉积微相分析、地震属性分析、等时切片等技术手段对岩性圈闭进行了综合识别和描述。研究表明,该方法在泌阳凹陷古城东南部地区取得了较好的效果。

THE METHOD FOR LITHOLOGIC TRAP IDENTIFICATION IN SOUTHEASTERN GUCHENG AREA OF BIYANG DEPRESSION

The structural traps are small in scale with low amplitude in the southeastern Gucheng area of the Biyang Depression,and the distribution of oil and gas is controlled not only by tectonics, but also by lithologic association. Therefore, it is crucial to make clear the spatial distribution pattern of lithologic traps in the southeastern Gucheng area, so as to provide more precise drilling targets. In our study, drilling, logging, seismic data are adopted to identify and describe the lithlogic traps by using the techniques of thin layer microfacies analysis, seismic attribute analysis, time slice and others. High quality results have been obtained in the region.