收稿日期: 2013-11-25
修回日期: 2014-01-26
网络出版日期: 2014-05-10
基金资助
国家科技重大专项子课题“塔里木盆地库车前陆冲断带油气开发示范工程”（编号：2011ZX5046-03）资助.
A New Trinomial Deliverability Equation with Consideration of Stress Sensitivity
Received date: 2013-11-25
Revised date: 2014-01-26
Online published: 2014-05-10
肖香姣,毕研鹏，王小培，高杰，常志强，张建业 . 一种新的考虑应力敏感影响的三项式产能方程[J]. 天然气地球科学, 2014 , 25(5) : 767 -770 . DOI: 10.11764/j.issn.1672-1926.2014.05.767
Reservoirs with low permeability always exhibit strong stress-sensitivity.According to the regression of extensive experimental data,power function is suitable for describing the stress sensitivity of reservoir permeability.However,the related reported on productivity of reservoirs with low permeability using power function of permeability is rare.This paper established a novel productivity equation for abnormally high pressure and low permeability reservoirs with consideration of threshold pressure gradient,turbulent effect as well as stress-sensitivity using the power function equation.The inflow performance relationships (IPR) were also plotted under different combination of relevant parameters.These parameters have significant effects on the productivity of low permeability gas wells,which should be taken into account when we assess the deliverability of these reservoirs.
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