特低渗透油藏试井解释中的模型选择及油藏诠释  

Well Testing Model Selection and Reservoir Annotation to Low Permeability Reservoirs.

作　　者：杨秀祥[1] 程时清[1] 袁玉金[1] 杨天龙[1] 

机构地区：[1]中国石油大学石油工程重点实验室,北京102249

出　　处：《油气井测试》2007年第2期14-16,共3页Well Testing

基　　金：国家自然科学基金项目资助(No.19172961油藏渗流反问题理论及剩余油分布规律)

摘　　要：以长庆特低渗透油藏试井解释为例,分析总结了大量试井曲线特征。对注水井导数曲线存在上翘的情形,认为可用存在水驱油界面阻力的复合模型解释。采用不渗透边界拟合时,对连通性好的岩性油藏,其边界应理解为低渗透区,或者是流动滞留区。通过对低渗透油藏试井解释选用模型的分析,获取了特低渗透油藏试井解释结果所包含的地层及开发动态信息。A lot of well testing data for low permeability reservoirs were analyzed and their curve characteristics were summarized in Changqing oilfield in this paper.The data should be interpreted according to composite model on basis of interface addition friction when derivative curves rise.A boundary reservoir with a good connectivity should be considered as low permeability zone or residual region when the matching with impermeable boundary is used.Through the analysis for well testing interpretation model in low permeability reservoirs the interpretation result including the reservoir and performance information can be announced.

关 键 词：低渗透油藏 试井 复合模型 边界 

分 类 号：TE348[石油与天然气工程—油气田开发工程]