永置式光学温度压力计在超深高压气井监测中的应用

Application of Permanent Optical Sensing Monitoring System in the Ultra Deep and Abnormal High Pressure Gas Well

大北1气田地层及井筒条件复杂,为准确获取气田的动态资料,引进了井下永置式光学压力温度监测系统。该监测系统由光学温度压力计、温度压力计托筒、井下光缆、井下光缆井口穿越装置,以及光学地面数据采集系统组成,能连续监测并报告井下压力温度变化情况,不影响其它作业。该系统首次成功应用,解决了国内超深异常高压气井的测压问题。

Formations and well-bore conditions for Dabei1 gas field are complex. In order to obtain an accurate dynamic data,inlet the down-hole permanent optical pressure temperature monitoring system is introduced. The monitoring system is composed of optical pressure gauge,pressure gauge support tube,underground cable,underground optical fiber cable,wellhead cable crossing device and optical surface data acquisition system which can continuously monitor and report on pressure and temperature changes,and has no influence on other operation. The first successful application of this system resolves the pressure monitoring problems at ultra deep abnormal high pressure gas wells.