气井二项式产能方程曲线斜率为负值原因分析及方程修正  

Binomial Productivity Equation Slope of the Curve for the Analysis of the Negative Reasons and Equation Correction in Gas Well

作　　者：姜梅枝[1] 

机构地区：[1]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163453

出　　处：《油气井测试》2013年第2期25-28,31,共5页Well Testing

摘　　要：目前,大庆长垣有T06层断背斜等构造圈闭51个,面积430 km2,400×108m3探明潜力。部署在A地区的浅层气井,多数获得工业气流。在气井系统试井过程中,由于层间干扰、井筒附近受钻井液污染等因素的影响,致使许多井的系统试井资料出现异常,无法求得准确的产能参数,无法准确计算无阻流量。为使试气资料得到有效利用,需要分析造成异常的原因,对异常资料进行分析与处理。研究表明,选择三项式方程进行修正,能够获得准确的产能评价。There are 51 structural traps like T06 layer faulted anticlines etc.Changyuan area in Daqing oilfield,area of which is 430km2,and proven potential is 400 billion cubic meters.Shallow gas wells in the region of A distract,most of that have industrial gas.During system well testing process for gas well,because of influence of factors of the interference between layers,contamination by drilling fluid near the wellbore,system well test data is abnormal,resulting not to obtain accurate capacity parameters,calculate accurate AOF.In order to effective utilizing test data of gas well,it is necessary to analyze the cause of the abnormal,conducting analysis and processing to abnormal data.The study shows that selecting trinomial equation correction to modify,an accurate capacity evaluation can be obtained.

关 键 词：浅层气井 系统试气 异常资料 产能方程 修正 

分 类 号：TE353[石油与天然气工程—油气田开发工程]