SYSTEM FOR ASSOCIATED PETROLEUM GAS UTILISATION Russian patent published in 2015 - IPC E21B43/40 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil and gas industry and may be used for utilisation of associated petroleum gas directly at well pad. System for associated petroleum gas utilisation includes a joint pipeline from the producing well pad brought to a separating unit for separation of the well product into associated petroleum gas, water and oil emulsion with lines for their discharge, separated water treatment unit, a pump coupled to ejector coupled to pressure pipeline in order to feed the resultant gas and fluid mixture into injecting wells. The system is completed additionally with mechanical particles hydrocyclone installed upstream the separating unit; the pump is mounted on a mobile frame, gravitation oil and gas separator is used as a separator, and hydrocyclone for separation of mechanical particles and gravitation degasifier is placed in the separated water treatment unit, which gas extraction tube is coupled to gas extraction line from the gravitation oil and gas separator coupled to the ejector; at that treated water output from the treatment unit is coupled to the pump and outputs of the hydrocyclones are connected to a holding tank for mechanical impurities.

EFFECT: complete utilisation of associated petroleum gas and brine water, in prevention of gas emissions into environment and treatment of the well product from mechanical impurities.

1 dwg