双城凹陷断裂特征及其对油气运聚的控制  

Characteristics of Faults and Their Control to Hydrocarbon Migration in Shuangcheng Depression

作　　者：陈少平[1] 熊才华[2] 林水清[3] 叶娅[1] 

机构地区：[1]中国地质大学(武汉)资源学院,湖北武汉430074 [2]华北石油管理局测井公司,河南新乡453731 [3]河南油田分公司勘探开发研究院,河南南阳473132

出　　处：《石油天然气学报》2006年第5期16-20,共5页Journal of Oil and Gas Technology

摘　　要：双城凹陷断裂极为发育,均为正断层,断裂以南北向和北北东向为主,在剖面上断裂的形成明显具有分期性。断裂对油气运聚、成藏的控制作用主要表现在:基底大断裂F1对压力起到了分割面的作用,控制了油气运移的方向,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。通过断裂特征及其对油气运聚的控制作用分析表明,双西陡坡带为油气运移的指向区;结合对该区的沉积、构造等条件的分析认为双西斜坡为油气勘探的有利地区。Faulus are extremely developed in Shuangcheng Depression, its direction is in SN and NNE, on the sectional plane faults are formed in different periods. The control of faults to the hydrocarbon migration and hydrocarbon accumulation include that the big fault F_1 on the base acts as a pressure partition boundary, by which hydrocarbon migration direction is controlled, and a channel is provided by the faults for hydrocarbon migration and shelter condition is provided by its seal for hydrocarbon accumulation. The analysis on the characteristics of faults and control to the hydrocarbon migration shows that Shuangxi steep slope area is the direction of hydrocarbon migration. It is considered that Shuangxi slope is the favorable area for hydrocarbon exploration by analyzing the conditions of sedimentation and tectonics.

关 键 词：双城凹陷 油气勘探 断裂特征 油气运移 油气聚集 青山口组 扶扬油层 

分 类 号：P618.13[天文地球—矿床学]