摘要
克拉2异常高压气田井口实测关井压力恢复资料出现持续下降的异常情况。通过对可能产生井口压力恢复下降的3种因素(井口不密封、邻井生产影响、温度变化)进行分析,认为井筒温度变化是导致克拉2气田关井井口压力恢复异常的主要原因,同时指出井口压力恢复异常发生在的径向流阶段。这为下一步进行井底压力恢复校正奠定了较好的基础。
The measured wellhead pressure buildup data in the Kela-2 gas field show that the pressure keeps on declining abnormally.Through analysis on three factors(unsealed wellhead,being impacted by the neighboring wells,and the borehole temperature variation)resulted in the continuous drop of built-up pressure,this paper puts forward that the borehole temperature variation is the leading reason and the abnormality always takes place in radial flow phase.The result from studies will provide the foundation for further correcting the wellbore build-up pressure.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2008年第10期78-80,共3页
Natural Gas Industry
关键词
克拉2气田
高压
压力恢复分析
径向流动
数学模型
Kela-2 gas field,high pressure,pressure build-up test,radial flow,mathematical simulation
