摘要
修正等时试井是气井最主要的产能试井方法之一。但是在等时阶段测试过程中,往往会出现由于操作不当、设备故障及冰堵等原因被迫关井的现象,造成某一个或两个等时工作制度的压力、产量数据缺失或无法进行等时间隔取点,对产能分析结果影响较大,甚至导致整个产能试井阶段数据无法分析。针对此类问题,将延续期流动初期的压力和产量数据纳入产能试井分析,提高修正等时试井异常资料的可解释率和解释结果的准确性。实例分析表明,通过对延续期流动初期的压力和产量数据的处理,产能计算结果能够满足现场工程需要。
Modified isochronal test is one of the main production capacity of gaswell testmethods.However,in period of modified testing,phenomena of shut-in well due to improper operation,equipment failure and ice blocking is always appeared,which leads to miss production data of one or two productivity system in testing or can't achieve points at the same time intervals,and that would have an great effect on productivity and even make all of the data frommodified isochronal test notbe analyzed.For such problems,the data of pressure and production from early flow of the extended periodwere involved in the capacity analysis ofwell test to improve interpretable rate of the abnormal data frommodified isochronal test of and the accuracy of the results.The instance analysis shows that capacity calculation results met the requirements of the project through processing the data of pressure and production from early flow of the extended period.
出处
《油气井测试》
2013年第5期21-24,29,共5页
Well Testing
基金
国家重大专项"煤层气藏低伤害高效低伤害高效能压裂液"资助(2011ZX05037-003)
关键词
气井
修正等时试井
无阻流量
异常资料
gas well,modified isochronal test,open flow capacity,abnormal data
