Concept of Gravity Drainage in Layered Porous Media

被引：0
|
作者：
Correa, Antonio Claudio F. [1 ]
Firoozabadi, Abbas [2 ]
机构：
[1] Petrobras, Rio De Janeiro, Brazil
[2] Reservoir Engn Res Inst, Palo Alto, CA USA
来源：
SPE JOURNAL | 1996年 / 1卷 / 01期
关键词：
D O I：
暂无
中图分类号：
TE [石油、天然气工业];
学科分类号：
0820 ;
摘要：
Gas-oil gravity drainage in layered porous media is, under certain conditions, an unstable process. Even for two layers, gas could finger through a less permeable top layer to reach a more permeable bottom layer. This paper provides a criterion for instantaneous gas fingering towards the more permeable layer. A non-linear form of the diffusivity equation is used to study gas-oil drainage in layered systems. Numerical examples show that recovery performance of layered systems, unlike homogeneous media, is sensitive to capillary pressure.
引用
收藏
页码：101 / 111
页数：11
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