Key Technology for Intelligent Control of Water Injection at the Wellhead for Surface Stratified Water Injection
The control system of a stratified surface water injection wellhead in an oil company is used as the research object to carry out the research on the key technology of intelligent control of surface stratified water injection wellhead.An intelligent con-trol system was designed by combining advanced sensors,PLC,DTU,PID control,and MODBUS communication protocol.The hardware system,software system,and remote monitoring and transmission system were designed to realize intelligent control of water injection and remote monitoring and transmission of each injection parameter.The results show that the minimum installa-tion height of the sensor is 11 timesthe diameter of the straight pipe section where the sensor is located.The PID intelligent control strategy is proposed to be applied to stratified water injection,and the intelligent control of water injection is tested on the test plat-form of the intelligent control system at the wellhead of stratified water injection on the ground.It is confirmed that after a short period of intelligent control,the actual flow rate value of each layer can be adjusted to the preset value with minimal error,and the effect of accurate control of water injection is achieved.
Stratified Water InjectionIntelligent ControlWireless RemoteUltrasonic Flow MeterPID Control
万方数据
维普
