气井部分压开垂直裂缝井试井分析  

Calculation Transient Pressure for Partial Open Vertical Fracture Gas Wells

作　　者：楼湘[1] 卢德唐[2] 袁帮凯[3] 

机构地区：[1]青海油田分公司采油气工艺处,甘肃敦煌736202 [2]中国科技大学,安徽合肥230026 [3]大庆油田有限责任公司地质录井分公司,黑龙江大庆163411

出　　处：《大庆石油地质与开发》2002年第1期53-55,58,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：将实际的垂直裂缝井简化成裂缝高度小于地层有效厚度的矩形 ,在此基础上采用乘积解给出渗流时的地层压力及井底瞬时压力。使用Laplace变换给出考虑井筒存储及表皮系数的部分压开垂直裂缝井在Laplace空间上的井底压力解 ,并通过Laplace数值反演给出考虑井筒存储及表皮系数的部分压开垂直裂缝井无量纲压力及导数。最后 。This paper simplifies actual vertical fracture well into rectangle and it's height is less than formation thickness.The dimensionless pressure distribution and transient pressure in wellbore are obtained through using product of Green function.The dimensionless transient pressure with dimensionless storage constant and skin are obtained by means of using Laplace transform in Laplace space.The dimensionless pressure and it's derivative of partial open vertical fracture with dimensionless storage constant and skin are obtained by numerrical inversion of Laplace transforms.Finial a actual example is used to illustrate the method of well testing analysis for partial open vertical fracture.

关 键 词：部分压开 垂直裂缝 试井分析 水力压裂 气井 地层压力 井底瞬时压力 

分 类 号：TE373[石油与天然气工程—油气田开发工程]