修正等时试井等时段数据确定气井产能方程  

Determination of stabilized deliverability formulation in tight gas using isochronal data

作　　者：梁倚维[1,2,3] 卢文伟[1,2] 马海宾[1,2] 梁博羽[1,2] 

机构地区：[1]苏里格气田研究中心,陕西西安710018 [2]低渗透油气田勘探开发国家工程实验室,陕西西安710018 [3]中国石油大学石油工程学院,北京100000

出　　处：《石油化工应用》2013年第9期46-48,55,共4页Petrochemical Industry Application

摘　　要：气井产能试井主要有回压试井、等时试井、修正等时试井,因为各种方法的适用条件,对于低渗及致密气田主要采用修正等时试井,为获取稳定产能,延续流动时间需要数月时间之久,出于节约资源、测试成本和气井投产的考虑,现场测试一般会在未达到稳定状态时结束测试,此时获得的无阻流量,并不是气井稳定的无阻流量,本文主要从产能试井基础理论出发,结合数学方法确定产能方程层流系数的变化,提出利用修正等时试井等时阶段数据,确定气井稳定产能的方法。The usual method used for gas well deliverability are back pressure test,isochronal test,modified isochronal test.Each method has its own limitation,for tight gas,the mainly method used are modified isochronal test.The time required for getting stable deliverability to reach stable flowing is more than one month,account for conserving resource,test cost and production demand,the practice test will end before reaching stable situation.So,the corre- sponding AOF is not stable.The study in this paper based on basic deliverability equation and mathematics and present a method of determining stable deliverability potential in tight gas using isochronal data.

关 键 词：产能试井 稳定产能 稳定状态 无阻流量 产能方程系数 等时数据 

分 类 号：TE328[石油与天然气工程—油气田开发工程]