摘要
由于气体“滑动效应”影响,低渗透碳酸盐岩气测渗透率在应用于气藏条件时,需用Klinkenberg方法进行校正,目前常用的方法为“四点回归”法。文中通过对克氏渗透率影响因素的研究,并结合川东石炭系储层实际资料,提出了只需“一点”气体视渗透率确定克氏渗透率的方法,用此法能得到与“四点回归”法相同的克氏渗透率。
As gas slippage effects, it is necessary to correct gas permeability of low--permeability carbonates by Klinkenberg's method at gas reservoir stress. A 'four points regression' method isused to do this work today. Through studying affecting factors of Klinkenberg P6rmeabilityand combining with practial data of carboniferous in the eastern Sichuan, this paper presentsa method in which Klinkenberg permeability can be determined by only 'one point' gas apparent permeability, and the result is the same as that of 'four points regression' method.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1994年第4期54-58,共5页
Petroleum Exploration and Development
关键词
渗透率
回归分析
低渗透油田
计算
low permeability, carbonate -rock, gas reservoir I permeability, regressionanalysis, (Sichuan gas field)