Application Research of submersible diaphragm pump based on nonmetal coiled tubing

Although beam pumping unit is widely used, it has high energy consumption and is gradually replaced by new energy-saving equipment, such as submersible diaphragm pump. Submersible diaphragm pump has been used in oil production system because of its unique diaphragm structure and high pump efficiency, and has achieved good application effect. At the same time, some engineering application problems have also arisen, such as frequent cable damage, wax deposition or corrosion of oil pipe, and difficult monitoring of pump working condition. In order to solve these problems, the application of submersible diaphragm pump system based on non-metallic coiled tubing is studied. The system consists of non-metallic coiled tubing, submersible diaphragm pump, intelligent control unit and wellhead Christmas tree. In the application test of oil production engineering, the process data are compared with the conventional beam pumping unit, and the results show that the power consumption is more than 50% less than that of the conventional beam pumping unit. The application test shows that the system is easy to realize remote monitoring of oil wells and intelligent adjustment of process parameters, and is conducive to unattended well site, which has a good application prospect.