高探1井储层评价与产能分析  

Reservoir evaluation and productivity analysis of Well Gaotan 1

作　　者：陈超峰 孙刚[2] 毛新军 胡广文[3] 封猛 咸玉席[2] CHEN Chaofeng;SUN Gang;MAO Xinjun;HU Guangwen;FENG Meng;XIAN Yuxi(Exploration Division,PetroChina Xinjiang Oilfield Branch,Karamay,Xinjiang 834000,China;Oil and Gas Research Center,University of Science and Technology of China,Hefei,Anhui 230022,China;Oil Testing Branch,CNPC Western Drilling Engineering Co.,Ltd.,Karamay,Xinjiang 834000,China)

机构地区：[1]中国石油新疆油田分公司勘探事业部,新疆克拉玛依834000 [2]中国科学技术大学石油天然气研究中心,安徽合肥230022 [3]中国石油天然气集团公司西部钻探工程有限公司试油公司,新疆克拉玛依834000

出　　处：《油气井测试》2020年第5期61-67,共7页Well Testing

基　　金：国家科技重大专项“致密油气藏多尺度介质复杂结构井数值试井分析方法及应用研究”(2017ZX05009005-002)。

摘　　要：通过压力恢复数据及储层岩石特性,建立符合高探1井地层真实状况的双孔介质部分射开“U”形边界数学模型,采用Laplace变换及分离变量法对数学模型进行求解,利用Stechfest数值反演绘制出压力及其导数双对数试井曲线,对高探1井压力恢复资料进行解释分析;采用瞬时IPR曲线预测产能,采油指数高达22.73 m^3/(d·MPa)。结果表明,高探1井储层物性好,压力高,污染小,具备高产且长期稳产的能力。高探1井在试油期间录取的大量动态数据,可为油气开发制度的制定提供可靠依据。Based on the pressure recovery data and rock characteristics of the reservoir,a mathematical model of the dual-pore medium in accordance with the real conditions of the Well Gaotan 1 was established,which partially penetrated the formation with a U-shaped boundary.Solve the mathematical model with Laplace transform and variable separation method.Double logarithmic well testing curves of pressure and its derivative were drawn by Stechfest numerical inversion.And the pressure build-up data of Well Gaotan 1 was interpreted and analyzed.Predict productivity using instantaneous IPR curve,with oil production index as high as 22.73 m^3/(d·MPa).The results show that the reservoir physical properties of Well Gaotan 1 are good with high pressure and small pollution.And the reservoir has a high productivity for long-term and stable production.The large amount of dynamic data collected during the oil testing of Well Gaotan 1 can provide a reliable basis for the formulation of oil and gas development systems.

关 键 词：双孔介质 数值试井 解释模型 LAPLACE变换 产能分析 储层评价 采油指数 

分 类 号：TE357[石油与天然气工程—油气田开发工程]