可监测阀板开关及阀板下压力的井筒压力控制阀

Wellbore Pressure-controlled Valves

井筒压力控制阀有阀体、液控管线、压力测量与监控系统、液控管线保护卡、地面控制柜等组成。井筒压力控制阀与欠平衡钻井作业设备配套可实现钻井、完井、测井等全过程欠平衡钻井施工作业。本文介绍了井筒压力控制阀技术研究工作及现场应用情况。

The wellbore pressure-controlled valve is composed of valve body,hydraulic control pipe line,pressure measurement and inspection system,ground control box and so on.Matching use of the wellbore pressure-controlled valve with under-balanced drilling equipments can realize the overall process of underbalanced drilling operation including well drilling,well completion,well logging and so on.In this paper,research and application of the wellbore pressure-controlled valve were introduced.