凝析气井异常产能资料评价方法及应用  

Evaluation Method and Application of Abnormal Productivity Data for Condensate Gas Wells

作　　者：辛小军 Xin Xiaojun(China France Bohai Geoservices Co.,Ltd.Hainan Branch,Haikou 570000)

机构地区：[1]中法渤海地质服务有限公司海南分公司,海南海口570000

出　　处：《石化技术》2025年第2期94-96,共3页Petrochemical Industry Technology

摘　　要：在潜山凝析气井测试过程中,采用二项式和指数式产能方程计算无阻流量时常出现异常,无法精确获取测试井无阻流量。在Forchheimer渗流规律的基础上,考虑滑脱效应和应力敏感影响,给出了三项式产能方程,并使用试凑法计算三项式产能方程系数,建立了测试井三项式产能方程。此外考虑到井下压力计未下入储层中部,通过流压梯度折算储层流压实现了产能曲线修正。将上述两种方法在测试井X中进行应用,获得了测试井无阻流量,实现了产能测试资料有效评价。During the testing of buried hill condensate gas wells,there are often anomalies when calculating the open flow rate by binomial and exponential productivity equations,so it is impossible to accurately obtain the open flow rate of test wells.Considering slippage effect and stress sensitivity,the trinomial productivity equation is given,and the coefficient of trinomial productivity equation is calculated by trial and error method,and the trinomial productivity equation of test well is established.In addition,considering that the downhole pressure gauge has not been lowered into the middle of the reservoir,the productivity curve is corrected by converting the flow pressure gradient into the reservoir flow pressure.The above two methods are applied to test well X,and the open flow of test well is obtained,which realizes the effective evaluation of productivity test data.

关 键 词：潜山 凝析气井 产能测试 三项式产能方程 流压梯度 

分 类 号：TE328[石油与天然气工程—油气田开发工程]