摘要
以渗流力学理论为基础，推导给出了均匀各向同性储层反九点方式注采井网见水时间的解析公式，并对其进行了油田实例的验证。然后针对人工压裂储层对以上公式进行了修正，并应用于低渗透油田人工裂缝的诊断。油田实例分析表明计算结果与大地电位法裂缝监测及井间示踪剂测试结果吻合较好，为油田开发中预测见水时间这一指标提供了一种重要手段，同时亦可用于反算人工压裂井裂缝半长等重要参数，从而合理控制压裂规模，指导压裂设计。
Based on the theory of fluid mechanics in porous media, an analytic formula for water breakthrough time of inverted nine-spot injection-production pattern in isotropic reservoirs is derived and verified by field cases. In view of hydraulic fractured reservoirs, it is modified and applied to hydraulic fracture diagnostics of low permeability oilfields. Field case analysis indicates that the results calculated by proposed formula agree well with those from fracture monitoring of ground potential method and interwell tracer test. This paper provides an important approach for prediction of water breakthrough time in oilfield development. Important parameters including half-length of hydraulic fracture can be also computed inversely, thus, can control fracturing scales and guide fracturing designs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2009年第1期61-65,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
上海市重点学科建设项目（批准号：Y0103）资助.
关键词
反九点方式
平面压力分布
油井见水时间
预测公式
人工裂缝效应
inverted nine-spot pattern
areal pressure distribution
water breakthrough time of producer
predic-tion formula
hydraulic fracture effect
