PID crude oil production system which dual PID pressure control is applied

摘要

The present invention applies dual PID pressure control so that the pressure control when the operating pressure is greater than or equal to the operating pressure setting range value generated in the process of separating and processing the produced crude oil into gas and liquid and the pressure control in the following case, Optimal pressure control is possible, and when the pressure falls below the operating pressure setting range, the rapid response speed of the pressure control valve minimizes rapid changes and pressure pulsations caused by pressure fluctuations, and accordingly, the operation of the system is stabilized quickly. The present invention provides a gas treatment line and a liquid treatment line connected to a vessel to which crude oil is supplied; A PT connected to the vessel to detect the internal pressure of the vessel; A PC connected to the PT through an electrical signal; A PCV provided in a combustion line connected in a branched form from the gas processing line and electrically signal-connected to the PC; Crude oil production by applying dual PID pressure control consisting of the first and second PIDs respectively set so that the response speed to the operation of the PCV is controlled differently depending on the operating pressure setting range of the PC under the operating conditions. The system is provided.