套压异常升高现状调查研究及原因分析  

Investigation and Analysis on Abnormal Increase of Casing Pressure

作　　者：冯广庆[1] 吕拴录[1,2] 王振彪[2] 李元斌[2] 周理志[2] 刘明球[2] 彭建云[2] 邱军[2] 黄世财[2] 

机构地区：[1]中国石油大学机电工程学院材料系,北京100249 [2]塔里木油田公司,新疆库尔勒841000

出　　处：《油气井测试》2012年第5期43-44,77,共2页Well Testing

摘　　要：对塔里木油田套压升高的情况进行了系统调查和统计分析,认为完井管柱内流体温度变化导致套压升高量很小,且维持时间很短;一旦正常生产,完井管柱内流体温度变化导致套压升高的现象会自动消失。完井管柱接头不密封是导致套压升高的真正原因,完井管柱接头的密封性能与接头设计特性、上扣扭矩、对扣和引扣等操作方式有关。This paper gives a thorough investigation and statistics on abnormal increase status of casing pressure in Tarim oilfield, and wells numbers and range of increasing casing pressure are predominated. The reason of it analyzed and it is considered that the temperature change of liquid in completion tubing string has a very small influence for increase casing pressure, and maintaining time is very short . It will automatically disappear when normal production being conducted. Casing inner pressure increase is actually caused by leakage of joints of completion tubing string, and joint sealing performance is related to its design, torque, screw and guide buckle operation method.

关 键 词：套压 完井管柱 密封 泄漏 

分 类 号：TE375[石油与天然气工程—油气田开发工程]