边底水发育储层压裂参数优化  

Optimization of Fracturing Parameters in Edge and Bottom Water Reservoir

作　　者：杨红[1] 何衡[2] 王京舰[3] 曹岳成 曹晶[1] 许亮[1] 

机构地区：[1]延长油田股份有限公司开发部,陕西延安716000 [2]中国石油长庆油田分公司油气工艺研究院,西安710018 [3]中国石油长庆油田分公司勘探开发研究院,西安710018 [4]延长油田股份有限公司杏子川采油厂,陕西延安716000

出　　处：《重庆科技学院学报（自然科学版）》2017年第1期55-57,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"超低渗透油藏有效开发技术"(2011ZS05013-004)

摘　　要：侏罗系延安组储层和三叠系长2储层边底水普遍发育,如果压裂施工参数不当,就会压窜边底水。在统计分析延长油田前期压裂资料的基础上,优选射孔位置,优化水力压裂施工排量、加砂强度。结果表明:该类储层应在储层段顶部射孔,射开程度占储层厚度的20%~30%;延安组储层水力压裂合理施工排量为0.8~1.2 m^3/min,优化加砂强度为0.8~1.2 m^2。针对长2储层不同的储层特征,推荐了5种压裂规模。Yanchang Oilfield of Jurassic Yan＇an formation and the Triassic Chang 2 reservoir developed widely with adequate bottom water,so edge and bottom water appears freqently when fracturing parameters are not correct.Based on the early stage statistical analysis,we extend the oil field fracturing data and optimize perforation position,the optimum hydraulic fracturing operation sand strength. The perforation spot should be on top of the reservoir section,with perforated degree of reservoir thickness in 20% ~ 30%. Construction displacement of hydraulic fracturing in Yan＇an group reservoir should be kept within the reasonable range of 0. 8 ~ 1. 2 m^3min,sand strength in 0. 8 ~1. 2 m^2. According to the reservoir characteristics,5 different fracturing modes are recommended.

关 键 词：边底水储层 压裂 射开程度 加砂强度 施工排量 

分 类 号：TE357.11[石油与天然气工程—油气田开发工程]