北京大学学报（自然科学版）2018，Vol.54Issue(3)：573-578,6.DOI:10.13209/j.0479-8023.2017.178
鄂尔多斯盆地靖安地区延长组储层有效开发的应力判据
Stress Criterion of Effective Development on Yanchang Formation Reservoir in Jing'an Area, Ordos Basin
摘要
Abstract
Through the analysis of casting thin sections, 3D geological modeling, special logging series and micro seismic monitoring, reservoir stress characteristics of Jing'an area were studied. The results show that: 1) the distribution of the direction of micro pore and throat would cause the stress anisotropy; 2) differences in each layer of Chang 4+52sandstone are big, the lateral superposition characteristics of multi-periods channels have the major influence on stress distribution; 3) the stress difference in the study area is generally not large with the value of 3-6 MPa, with the development of water flooding development, the variation of the two main stress varies in the reservoir, resulting in the multi-directional development of fractures in the process of repeated fracturing. The results can provide a scientific basis for improving oil recovery in the middle and late development of low permeability reservoirs.关键词
鄂尔多斯盆地/应力/水力压裂缝/原油采收率Key words
Ordos Basin/stress/hydraulic fracture/oil recovery分类
能源科技引用本文复制引用
路向伟,杜书恒,郑奎,张换果,汪贺,孙彤..鄂尔多斯盆地靖安地区延长组储层有效开发的应力判据[J].北京大学学报（自然科学版）,2018,54(3):573-578,6.基金项目
国家科技重大专项(2017ZX05013005-009)资助 （2017ZX05013005-009）
