AUTOMATED SYSTEM OF CORROSION INHIBITOR SOLUTION INJECTION FOR WELLS Russian patent published in 2019 - IPC E21B37/06 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the gas industry, and can be applied for the corrosion inhibitors and methanol metered supply into the gas condensate wells process pipelines and into the main gas pipelines. System contains the built on an industrial controller local control system, technological capacity for the inhibitor with a level sensor and level indicator, fine filter, metering pump, which discharge line is equipped with the check valve, pressure gauge, pressure and flow sensors. Metering pump regulation is based on of the metering volume regulation by the metering pump plunger stroke length changing by the separately installed plunger electric drive and the metering pump performance controlling by the motor rotation frequency changing through the frequency converter. Control is implemented by the distributed system built on the automated process control system controller and on the local industrial controller, information exchange between which is carried out via the fiber-optic communication line, which allows to establish the system remote monitoring and diagnostics.

EFFECT: increasing the corrosion inhibitor use effectiveness and operation reliability.

7 cl, 1 dwg