一种确定低渗气井无阻流量的新方法  

Determination of open flow potential in low permeability gas Wells

作　　者：温慧芸 Wen Huiyun(Bohai Oilfield Research Institute,Tianjin Branch of CNOOC Ltd,Tianjin 300450)

机构地区：[1]中海石油(中国)有限公司天津分公司渤海石油研究院

出　　处：《石化技术》2019年第11期47-48,共2页Petrochemical Industry Technology

摘　　要：对于低渗气井,在利用系统试井资料求解二项式产能方程时,通常会遇到两个问题:第一,通过压力恢复得到地层压力需要很长的时间,如果测试的地层压力不准确,对求解二项式产能方程会带来困难;第二,在系统试井过程中,每个工作制度下测试的井底流压若不能达到稳定,会引起所测流压不准确,造成在求解产能二项式过程中得到的系数B为负值。for low permeability gas Wells,when using the system well test data to solve the binomial productivity equation,there are usually two problems:first,it takes a long time to get the formation pressure through pressure recovery,if the measured formation pressure is not accurate,it will bring difficulties to solve the binomial productivity equation;Second,in the process of systematic well test,if the bottom-hole flow pressure tested under each working system cannot reach stability,the measured flow pressure will be inaccurate,resulting in the negative coefficient B obtained in the process of solving the productivity binomial.

关 键 词：无阻流量 系统试井 压力恢复试井 

分 类 号：TE3[石油与天然气工程—油气田开发工程]