低渗透气藏水平井井底压力动态  

Down-Hole Pressure Dynamics for Horizontal Wells in Low Permeability Gas Reservoir

作　　者：杨志刚[1] 王敏[1] 张馨元[1] 张落玲[1] 周正洲 

机构地区：[1]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163153 [2]昆仑燃气有限责任公司大庆燃气分公司,黑龙江大庆163153

出　　处：《油气井测试》2012年第4期1-3,75,共3页Well Testing

基　　金：教育部博士学科点新教师类基金(编号:20095122120012)赞助

摘　　要：从渗流理论出发,建立适用于低渗气藏水平井的渗流数学模型,运用考虑"启动压力梯度"影响的Lord Kelvin点源修正解、杜哈美叠加原理修正公式和泊松叠加公式等方法,求解低渗气藏水平井的点源解,通过计算得到无因次压力和压力导数双对数理论图版,并在其基础上分析了低渗气藏水平井渗流特征及其影响因素。A mathematical model for horizontal wells in low permeability reservoir is established according to seepage flow theories.By using Lord Kelvin point source correction solution,Bessel functions and the Poisson integral formula and other methods,the point source solution is got for horizontal wells in low-permeability reservoir.The dimensionless pressure and pressure derivative log-log type curves are got and analyzed on the basis of its low permeability reservoir flow characteristics of horizontal wells and its influencing factors.

关 键 词：低渗透气藏 水平井 数学模型 试井解释 

分 类 号：TE353[石油与天然气工程—油气田开发工程]