A Model of Buoyancy-Driven Two-Phase Countercurrent Fluid Flow

被引：33

作者：

Silin, Dmitriy ^{[1
]}

Patzek, Tad ^{[2
]}

Benson, Sally M. ^{[3
]}

机构：

[1] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Berkeley, CA 94720 USA

[3] Stanford Univ, Energy Resources Engn Dept, Stanford, CA 94305 USA

来源：

TRANSPORT IN POROUS MEDIA | 2009年 / 76卷 / 03期

关键词：

Multiphase flow; Porous media; Gas migration; Darcy's law; VISCOSITY SOLUTIONS; IMBIBITION; INJECTION; BEHAVIOR; AQUIFER; CO2;

D O I：

10.1007/s11242-008-9257-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We seek simple analytical solutions in a model of gas flow driven by a combination of buoyancy, viscous, and capillary forces. Traveling-wave solutions describe propagation of the top and bottom of the gas plume. The top of the plume has low gas saturation, but propagates much faster than the bottom. The theoretical maximum of the velocity of propagation of the top of the plume provides a simple conservative estimate of the time until plume evolution will dramatically slow down. A sequence of rarefaction and traveling-wave solutions characterizes the transition zones between the top and bottom stable regions. The analytical results are applied to studying carbon dioxide flow caused by leaks from deep geological formations used for CO(2) storage. The results are also applicable for modeling flow of natural gas leaking from seasonal gas storage, or for modeling of secondary hydrocarbon migration.

引用

页码：449 / 469

页数：21

共 38 条

[1] Secondary imbibition in NAPL-invaded mixed-wet sediments [J].