东营凹陷非均质储层压裂选层研究  

Study on Selecting Layer in Fracture of Heterogeneous Reservoir in Dongying Sag

作　　者：于文文[1] 李红南[1] 吴平[2] 

机构地区：[1]中国石油大学(华东)地球资源与信息学院,山东青岛266555 [2]胜利油田有限公司井下作业公司,山东东营257077

出　　处：《油气井测试》2011年第5期9-12,75,共4页Well Testing

摘　　要：由胜利油田探井压裂井的统计可知,近岸水下扇的压裂效果最好,滩坝相次之,扇三角洲较差,浊积扇相最差。影响探井压裂效果的主要因素是地质静态参数,而对于非均质储层,压裂增产主要受到压裂改造有效半径内最好物性储层的影响,可降低单井测试物性下限。通过典型井分析,认为东营北部的砂砾岩体压裂增产效果受压裂裂缝沟通的物性最好的储层影响;东营西部滩坝相的压裂增产效果受改造半径内坝砂出现的几率影响。对非均质储层,应该进行大型压裂,沟通有效储层,取得增产效果。According to the data statistics of exploration wells and fracturing wells in Shengli Oilfield,the fracturing effect is optimal in the near-shore sub-marine fan,the fracturing effect is next in beach bar faces,the fracturing effect is poor in fan delta,and the fracturing effect is worst in turbidite fan.Geological static parameters are the major factors affecting the fracturing effect of test wells.For heterogeneous reservoir,fracturing is mainly affected by the formation with the best physical properties in the reservoir within an effective radius of fracturing reformation yield,so we can reduce the lower limit of single well testing property to improve hydro-fracturing stimulation effect.Based on the analysis of typical wells,the fracturing effect of glutenite reservoir in northern Dongying is influenced mainly by the formation with good cracks communication;and the fracturing effect of beach dam in western Dongying is influenced mainly by the beach bar occurrence probability within the reformation field.For heterogeneous reservoir,the massive fracturing is needed to enhance the formation communication and increase the production.

关 键 词：东营凹陷 非均质储层 压裂选层 砂砾岩体滩坝相 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]