砾石充填注砂量地面测量系统研究

Measurement technology research of injection sand volume in sand control based on gravel packing

针对油井砾石填充防砂作业过程中,准确测量注砂量难度大、自动化程度低的情况,开展了基于声波传感器的砾石填充注砂量测量技术研究。本文介绍了砾石填充注砂的方法,分析了注砂时砂粒与管壁碰撞后产生的信号特点;提出了非接触式的超声波传感器测量注砂量的方法,设计了基于DSP技术的注砂量信号采集和信号处理系统,实现了砾石填充过程中注液量和注砂量的实时监测。通过试验,验证了测量方法的可行性,系统操作方便、自动化程度高,测量精度较高,满足现场的应用的要求。

Well gravel fill sand during the operation, accurate measurement of the amount of sand injection is difficult, the low degree of automation, to carry out the Note sand gravel fill based on acoustic sensor measurement technology research. The article describes a method of gravel fill Note sand, Note sand sand wall collision signal characteristics; non-contact ultrasonic sensor measurement Note the amount of sand, and note the amount of sand based on DSP technology signal acquisition and signal processing systems, real-time monitoring of the injection fluid volume and note the amount of sand gravel fill process. Trials to test the feasibility of the measurement method, the system is easy to operate, high degree of automation, t accuracy reaches a certain height.