收稿日期: 2012-07-18
修回日期: 2012-08-02
网络出版日期: 2013-02-10
基金资助
中国石油天然气股份公司科技项目“火山岩气藏有效开发技术研究”(编号:2011B-1506)资助.
Establishment of Trinomial Productivity Equation for Non-Darcy Effect Low Permeability Gas Reservoirs
Received date: 2012-07-18
Revised date: 2012-08-02
Online published: 2013-02-10
郑丽坤 . 低渗透气藏非达西渗流三项式产能方程的建立[J]. 天然气地球科学, 2013 , 24(1) : 146 -149 . DOI: 10.11764/j.issn.1672-1926.2013.01.146
The gas percolation is not adherence to Darcy′s law due to existence of starting pressure gradient in the low permeability gas reservoir.Based on low permeability gas reservoir with non-Darcy low-velocity seepage differential equation,I establish the low permeability gas reservoir Trinomial equation with consideration of starting pressure gradient effect,and present the solving method.The proposed method is feasible and reliable calculation results after the crude data are calculated in a gas reservoir.
Key words： Low permeability; Non-Darcy; Trinomial; Productivity equation
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