文东油田低渗透油藏裂缝分布特征  

Distribution features of fractures in low-permeability oil reservoir of Wendong oilfield.

作　　者：耿兆华[1] 马洪涛[1] 王磊[1] 王恩成[1] 胡朝菊[1] 

机构地区：[1]中原油田分公司采油一厂

出　　处：《油气地质与采收率》2001年第2期47-48,共2页Petroleum Geology and Recovery Efficiency

摘　　要：通过观察岩心、裂缝监测并运用主曲率法裂缝定量计算等手段 ,对文东油田A区盐间低渗透油藏的裂缝性质、类型和分布规律进行了综合研究。发现A区沙三段中亚段储集层发育大量天然裂缝 ,具有构造垂向上分带性及平面上分片性等特征。根据裂缝分布规律 ,优化了A区注采井网 。Features, type and distribution rule of the fractures in low?permeability oil reservoir of A area in Wendong oilfield are studied synthetically through observing cores, monitoring fractures and quantitative calculating fractures using principal curvature method. It is found that a lot of natural fractures developed in the reservoir of middle Es 3 in A area with the features of vertical zoning and plane parting on structure. The flooding pattern of A area is optimized according to the distribution rule of the fractures. Productivity and waterflooded sweep efficiency of this oil reservoir raised effectively.

关 键 词：油藏裂缝 低渗透 注采井网 文东油田 分布特征 地质构造 

分 类 号：TE348[石油与天然气工程—油气田开发工程] TE321