Research on Downhole Plunger Position and Pressure Temperature Detection of Plunger Gas Lift System

Abstract

Plunger gas lift utilizes the energy of gas production in the formation. By periodically switching on and off the gas well, the plunger moves up and down in the tubing to discharge the bottom hole fluid. The purpose is to reduce the back pressure on the production layer and increase the gas production of the formation. Power, prolong the production life of the gas well. The plunger gas lift detection is the core part of the plunger gas lift system. Adjusting the working status of the downhole plunger through the detection of downhole plunger position, temperature and pressure has important engineering value for improving the oil recovery efficiency of the gas lift process. In order to promote the development of downhole detection systems for gas lift wells in my country and overcome the difficulties of late start and lack of experience, this article focuses on the development status of the detection of plunger gas lift systems.the paper briefly introduce the composition of the plunger gas lift system, analyze the problems of the plunger arrival position detection and temperature and pressure detection in the gas lift detection system, and then analyze the current status of the plunger position monitoring of the plunger gas lift downhole. A review is made, followed by a review of the current status of domestic temperature and pressure monitoring systems for plunger gas lift wells. The review found that the detection of plunger position in my country is still at a relatively weak stage, and direct measurement cannot be achieved; however, there have been breakthroughs in the detection of temperature and pressure, especially in the fields of pressure and temperature detection, storage and wireless transmission. breakthrough. The analysis believes that the detection of downhole parameters of plunger gas lift should be developed in the direction of the integration of well digital control and data acquisition system and digital measure adjustment.