白庙深层凝析油气藏地质特征分析

Analysis of Deep Geologic Characteristic of Condensate Reservoir in Baimiao Area

通过对白庙构造深层地质特征的研究分析 ,认为受兰聊断层和杜寨断层控制形成的白庙半背斜是油气运移的一个主要指向 ,4个期次的断层控制了油气的运移和不同层位的聚集 ,扇三角洲前缘砂体是主要的储集层 ,上倾方向砂岩尖灭和储层物性变差形成了 2种侧向封堵条件。上述 4种因素控制形成了白庙深层带油环的构造岩性凝析油气藏。

By analyzing the deep geologic characteristic of Baimiao structure,it is thought that the half-anticline controlled by Lanliao fault and Duzhai fault is one of the major pointers for gas and oil migration.Migration and accumulation of hydrocarbon in different formations are controlled by four periods of faults.Sandstone updip pinches out and reservoir property becomes worse,which form two kinds of lateral plugging conditions.It is four factors above-mentioned controlling that form the deep structure-lithology condensate reservoir with oil ring in Baimiao structure.