电控液动远程节流阀控制系统-《油气井测试》

文章信息/Info

Author(s):: WANG Huijun; Well Testing & Perforation Company, PetroChina Daqing Oilfield Company Co., Ltd., Daqing, Heilongjiang 163412, China

Keywords:: throttle valve; electrically controlled hydraulic operation; the control console; oil nozzle opening; remote control; precise control

摘要:: 大规模加砂压裂排液过程中，用于节流降压的节流阀常存在本体耐腐蚀性弱，造成阀体易损坏、节流阀失效，以及油嘴调节精度不能满足实际需要的情况。根据常规节流阀结构及工作特点，研制出电控液动远程节流阀控制系统。采用电控液的方式，节流阀阀位传感器接收信号，系统自动控制比例电磁阀的阀芯开口度，调整高压液体流量，实现对管汇节流阀的开大或关小的速度及位置控制；若遇现场电源中断，还可由电动模式切换到手动模式，不影响正常施工。2019年，经在大庆深层气井上应用，对节流阀进行远程精确调控，提高了节流阀应用的安全性，实现了连续排液精细控砂。该系统可确保连续施工，降低加砂压裂排液过程的风险，确保排液求产过程的顺利进行。

Abstract:: In the process of fracturing fluid drainage with sand on a large scale, the throttle valve used for throttling and reducing pressure often has weak corrosion resistance, which causes the body to be easily damaged, the throttle valve to fail, and the oil nozzle regulation accuracy cannot meet the actual needs. According to the structure and working characteristics of conventional throttle valve, the electronic control system of hydraulic remote throttle valve is developed. The system automatically controls the spool opening degree of the proportional solenoid valve, adjusts the highpressure liquid flow, and realizes the speed and position control of the throttle valve with the mode of electronically controlled liquid, the throttle valve position sensor receives signals. In case of interruption of onsite power supply, the electric mode can also be switched to manual mode, without affecting normal construction. In 2019, through the application in daqing deep gas well, remote accurate control of throttle valve has been carried out to improve the safety of throttle valve application and realize continuous fluid drainage and fine sand control. The system can ensure continuous operation, reduce the risk of sand fracturing fluid draining process, and ensure the smooth operation of fluid draining and production process.

备注/Memo:: 2020-05-11收稿，2020-06-25修回,2020-07-01接受,2020-08-20网络版发表
中油股份公司科技重大专项“松北深层天然气富集规律、勘探技术研究与规模增储”子课题“徐家围子深层有效排液配套工艺及产能评价技术研究”（QR/A0/7-13-01）
王慧君，女，1982年出生，工程师，2005年毕业于齐齐哈尔大学应用化学专业，现从事试油测试科研工作。电话：0459-5692913，13936951492；Email：wanghuijun010@sina.com.cn。通信地址：黑龙江省大庆市让胡路区乘南18街试油试采分公司工程技术大队，邮政编码：163412。