CAJ | 학술논문

针对油井砾石填充防砂作业过程中注砂量和注液量难以实时监测的情况,本文通过研究砂粒在流体中与管壁的碰撞效应、传感器技术、流体携砂量的算法及信号处理技术,研制了油气井砾石填充实时监测室内实验系统。系统采用非接触式测量方法识别砂粒碰撞管壁产生的超声波信号,同时使用多普勒流量计检测管道内流体的流量,最后通过分析计算得到实时和累积的注砂量。在实验室条件下进行了不同含砂量的实时监测实验,取得了很好的效果,现场的验证实验表明该系统可以用于油气井砾石填充的实时监测。
침대유정력석전충방사작업과정중주사량화주액량난이실시감측적정황,본문통과연구사립재류체중여관벽적팽당효응、전감기기술、류체휴사량적산법급신호처리기술,연제료유기정력석전충실시감측실내실험계통。계통채용비접촉식측량방법식별사립팽당관벽산생적초성파신호,동시사용다보륵류량계검측관도내류체적류량,최후통과분석계산득도실시화루적적주사량。재실험실조건하진행료불동함사량적실시감측실험,취득료흔호적효과,현장적험증실험표명해계통가이용우유기정력석전충적실시감측。
In the operating process of gravel packing, It is difficult to monitor the sand content and injection volume in oil and gas Wells on real-time. This paper develops a indoor experimental system of real-time monitoring of the gravel packing in the oil and gas wells by studying collision effect of sand in the fluid and wall, sensor technology, algorithms of sand amount of fluid and signal processing technology. This system identify ultrasonic signals generated by collision of sand and wall by non-contact measurement method, and detect fluid flow in pipeline used Doppler flow-meter, ultimately get real-time and accumulated amount of sand in fluid by analyzing and calculating. The real-time monitoring experiment is done with different amount of sand under the laboratory conditions, the experiment achieved good results. Verification experimental in the field show the system can be used for real-time monitoring of gravel packing in oil and gas wells.