模糊识别在胡尖山长4+5油藏压裂选井选层中的应用  

Application of Fuzzy Recognition in Well and Layer Selection of Reservoir Chang 4+5 Fracturing in Hujianshan Area

作　　者：李得立[1] 邓虎成[1] 雷涛[1] 黄婷婷[2] 张昊天[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]川庆钻探工程有限公司地质勘探开发研究院,四川成都610051

出　　处：《石油天然气学报》2011年第6期116-120,9,共5页Journal of Oil and Gas Technology

基　　金：四川省教育厅自然科学基金项目(09ZC027)

摘　　要：胡尖山长4+5油藏是典型的特低渗油藏,压裂改造是该类油藏开发获得工业油流的必须手段。为了避免传统压裂选井选层的经验性和盲目性,首先基于以往该区178口单井的压裂实施效果进行了统计分析,找出了影响压裂效果的主要地质因素和施工因素;在此基础上运用模糊数学分析方法建立了适合该区压裂选井选层的数学模型,并根据油田现场生产要求确定了该模型的判识标准。最后通过对模型进行了应用,与该地区实际压裂施工结果具有很好的符合性,这为现场该类油藏压裂选井选层提供了依据和指导。Reservoir Chang 4+5 of Hujianshan Oilfield was a typical low permeability reservoir,therefore,wells needed to be fractured to obtain industrial oil flow.In order to avoid the blindness of traditional reservoir fracturing,based on the effect of single well fracturing of 178 wells,statistical analysis was performed,the major geologic and operating factors influencing fracturing were determined.On the basis stated above,fuzzy analysis method was used to establish a mathematical model for well selection in the studied area and according to the oilfield requirements,the identification standards for the model was determined.The application results show that the established selection criteria fits the practical data in oilfields well,it provides a basis for well and layer selections in the studied area.

关 键 词：胡尖山油田 模糊数学 压裂 选井选层 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]