特种油气藏2012，Vol.19Issue(3)：55-57,3.DOI:10.3969/j.issn.1006-6535.2012.03.013
气井测试一点求绝对无阻流量方法局限性研究
Study on limitation of one-point method to get absolute open flow in gas well test
摘要
Abstract
The one-point method to get absolute open flow ( AOF) in gas well test originates from binomial flow equation and exponential flow equation. The method sets the contrast factor Ad in binomial flow equation and the exponent n in exponential flow equation as constants. This is not consistent with the scientific basis that they are functions of reservoir seepage parameters, so that the gas well AOF thus derived is not reliable, neither is the gas well seepage equation derived from the data of one-point method. Error analysis of one-point method indicates that the method can only be used to estimate gas well AOF when multi -point stable test condition is unavailable and to avoid large amount of gas blow-down loss.关键词
一点法/绝对无阻流量/二项式/指数式/经验关系式Key words
one-point method/ absolute open flow/ binomial flow equation/ exponential flow equation/ empirical equation分类
能源科技引用本文复制引用
胡永乐,孙志道,方义生,胡云鹏..气井测试一点求绝对无阻流量方法局限性研究[J].特种油气藏,2012,19(3):55-57,3.基金项目
国家重大专项“C02驱油与埋存关键技术”(2011ZX5016) （2011ZX5016）
