复杂边界条件下的水平井不稳态压力特征分析  

Pressure Tranient Characteristic Analysis for Horizontal Wells with Complex Boundaries.

作　　者：段永刚[1] 李其深[1] 陈伟[1] 

机构地区：[1]西南石油学院

出　　处：《油气井测试》2001年第4期5-7,共3页Well Testing

摘　　要：采用点源函数的方法通过对水平井各种边界条件研究 ,提出了用试井模型来评价复杂边界条件下均质油藏水平井压力动态。通过该模型能够研究水平井在无限大油藏、一条断层、直角断层、渠道流断层以及封闭矩形条件下的压力动态 ,在数值反演计算中同时考虑表皮系数和井筒存储对压力动态的影响 ,了解水平井压力动态 ,对于指导水平井的生产和油藏动态分析都具有重要的指导意义。A mathematical model is presented to evaluate pressure response of a horizontal well in bounded homogeneous reservoirs which based on the method of point source function and research about various boundaries condition of horizontal wells.The model also used to understand the pressure behavior of a horizontal well in an infinite acting,one,two of three sealing faults and closed rectangular.Furthermore we introduce skin and wellbore storage in the numerical solution.Use of the technique is illustrated with the case of a horizontal well in a naturally fractured reservoir and fractured well.

关 键 词：均质油藏 水平井 复杂边界 不稳定试井 压力恢复分析 

分 类 号：TE353[石油与天然气工程—油气田开发工程]