METHOD FOR AUTOMATIC CONTROL OF PRODUCTIVITY OF GAS FIELDS, TAKING INTO ACCOUNT THEIR ENERGY EFFICIENCY IN CONDITIONS OF THE FAR NORTH OF THE RUSSIAN FEDERATION Russian patent published in 2024 - IPC E21B43/00 F17D3/00 

FIELD: natural gas production.

SUBSTANCE: ensuring regulation of the productivity of a gas production enterprise (GPE). The method includes the distribution of a predetermined plan according to the volume of gas production by dispatch service between its gas fields (GF), which the information and control system of dispatch control - DC ICS transmits in the form of a task into the automated process control system - APCS of the i-th complex gas treatment unit - CGTU for supplying dried gas to the main gas pipeline. The APCS of the i-th CGTU together with the APCS of the booster compressor station - BCS of the i-th GF ensures the preparation of dried gas in volume , part of which is supplied to the process needs of the CGTU itself as gas for its own needs in the amount , and the other part of it by volume enters the BCS as fuel gas for its gas pumping units. DC ICS of GPE continuously generates an individual current task for each i-th GF for supplying commercial gas taking into account the energy efficiency of its BCS, using an individual PID controller for each i-th GF, operating in normal or auxiliary mode. In normal mode, the PID controller automatically generates the current task for the APCS of the i-th CGTU based on the productivity of the i-th GF controlled by it. In the auxiliary mode, the PID controller switches to broadcasting a step-by-step performance task, which is generated by the DC ICS in an iterative search for the maximum energy efficiency of GPE. In both modes, from the output of the i-th PID controller, the reference signal enters the APCS of the i-th CGTU of the GF managed by it. The signal for the commercial gas production plan is set to the SP task input of all PID controllers of the DC ICS, and the PV feedback input of these PID controllers sends a signal of the actual production of commercial gas by all CGTUs , entering the MGP. When the system is put into operation, all these PID controllers operate in the main mode with an individual value of the proportionality coefficient C_{p_i}. As soon as the CGTU, after putting the system into operation, reaches planned production , DC ICS begins to determine the overall energy efficiency and ranks all GFs according to their current energy efficiency, based on the results of which the DC ICS determines the GF that operates with the lowest and highest energy efficiency values and compares them.

EFFECT: optimal distribution of the production volume plan between GFs in real time is ensured, and the carbon footprint is reduced.

2 cl, 2 dwg