MONITORING METHOD OF INTER-WELL PARAMETERS (VERSIONS), AND OIL RECOVERY PROCESS CONTROL SYSTEM Russian patent published in 2014 - IPC E21B47/06 G01K11/32 G01L11/02 

FIELD: oil and gas industry.

SUBSTANCE: monitoring method of inter-well parameters, at which by means of a laser radiation source there formed with the specified duration and frequency is a light pulse entering a fibre-optic cable where dissipation radiation is evolved through the cable length. Dissipation radiation entering a processing unit is converted to an electric signal and amplified. Then, a useful signal supplied to the input of the second controller is separated from it, where frequency of displacement of the useful signal relative to generation frequency of the laser radiation source is determined, and then, as per its value there calculated is a current value of pressure change parameter; the obtained data is compared to the those specified in the first controller, at deviation of which an oil recovery process is automatically controlled in compliance with the change of inflow, which is determined by continuous measurement of the well pressure change; electric motor shaft rotation frequency is controlled; when pressure change parameter value is lower than the specified value, the electric motor shaft rotation frequency is increased, and when the pressure change parameter value is higher than the specified value, then the electric motor shaft rotation frequency is decreased.

EFFECT: optimisation, automation and enhanced efficiency of an oil recovery process.

16 cl, 3 dwg