汤原断陷断裂构造特征及其对油气成藏的控制作用  

THE FAULT TECTONIC FEATURES AND ITS CONTROL ROLES TO OIL AND GAS ACCUMULATING IN TANGYUAN FAULT DEPRESSION

作　　者：罗群[1] 白新华[1] 

机构地区：[1]大庆石油学院,安达151400

出　　处：《长春科技大学学报》1999年第3期247-251,共5页Journal of Changchun University of Science and Technology

摘　　要：汤原断陷是典型的受断裂控制的陆相盆地。盆地内断裂极为发育。断裂的发育主要有 Ｎ Ｅ向和 Ｎ Ｗ － Ｎ Ｗ Ｗ 方向，断裂的分布具有东西分带，南北分群的特征。按断裂的成因类型可划分出７ 种类型。断裂对油气生成、运聚及成藏的控制作用主要表现在：基底大断裂控制了烃源岩的展布，主干断裂控制了圈闭的形成和分布，断裂为油气运移提供了通道作用，断裂的封闭性为油气的聚集成藏提供了遮挡条件。Tangyuan fault depression is a typical on shore basin controled by faults.The faults developed very well in this depression.There are two main ranging directions NE and NW—NWW directions.The fault distribution has the characteristics of east-west dividing zones and south-north dividing blocks.the faults are divided into seven genetical types. The roles of the fault controling on oil and gas occuring,migrating and accumulating are shown by the base big fault coutrolling on hydrocarbon organic source distribution,and the main fault coutrolling on trap formation and distribution. Faults worked as oil and gas migrating channels during fault opening. Seal faults provided good conditions for stopping oil and gas moving and accumulating.

关 键 词：油气藏 控制作用 汤原断陷 断裂构造 

分 类 号：P542.3[天文地球—构造地质学] P618.130.2[天文地球—地质学]