克拉2气田井口压力恢复测试异常分析  

ABNORMAL REASON ANALYSIS ON WELLHEAD PRESSURE BUILD UP TEST IN THE KELA-2 GAS FIELD

作　　者：王洪峰[1] 朱卫红[1] 唐明龙[1] 肖香姣[1] 正岩[1] 

机构地区：[1]中国石油塔里木油田公司勘探开发研究院

出　　处：《天然气工业》2008年第10期78-80,共3页Natural Gas Industry

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.

关 键 词：克拉2气田 高压 压力恢复分析 径向流动 数学模型 

分 类 号：TE377[石油与天然气工程—油气田开发工程]