双重介质二维不定常渗流研究  

Research of unsteady flow in double porosity medium

作　　者：高春光[1] 侯晓春[1] 刘慈群[2] 汪永利[2] 

机构地区：[1]中国地质大学(北京),北京100083 [2]石油勘探开发科学研究院廊坊分院,河北廊坊102801

出　　处：《水动力学研究与进展（A辑）》2005年第6期755-760,共6页Chinese Journal of Hydrodynamics

摘　　要：本文采用傅立叶变换方法,求得了弱可压缩液体在双孔介质中二维不定常渗流的拉氏空间解,研究了非稳态变换双重介质裂缝储量比ω和介质间传导系数λ对无限导流垂直裂缝井的压力及压力导数的影响,绘制了影响因素的敏感性曲线,并对早期及晚期的结果进行近似,为试井分析提供了理论基础。Unsteady flow of double porosity medium was studied in this paper and a new analytic solution in Laplace space was developed for infinite conductivity vertical fractures. Several influential factors including transmissihility coefficient, storability, and boundary, which would affect the plotted curves of bottom-hole pressure and pressure derivation to some extent, were analyzed in this paper. In addition, approximate solutions of early period regime and later time regime were presented, which would he used to equip well test analysis of double porosity medium with corresponding theory.

关 键 词：双重介质 不定常渗流 垂直裂缝 无限导流 

分 类 号：O357.3[理学—流体力学]