METHOD OF UTILIZING OIL GAS FROM WELL TO SYSTEM OF OIL COLLECTION Russian patent published in 2018 - IPC E21B43/00 

FIELD: technological processes.

SUBSTANCE: invention relates to a technology for reducing associated petroleum gas emissions from oil producing wells. By the method, the accumulated oil gas in the intertubular space during the operation of the well is completely transferred to the oil collection system by its displacement with highly mineralized water. To do this, two valves are installed above the deep pump first: reverse one is closer to the pump and the bypass one of KOT-93 type. In the TS tubing string, a high-mineralized water is injected from the wellhead with a mobile pumping unit or the nearest injection well of the reservoir pressure maintenance system. If the pressure exceeds a certain value, the bypass valve is opened. High-mineralized water fills the intertube space and displaces the oil gas into the oil collection system. Water injection process is carried out until high-mineralized water appears from the sampler on the branch pipe connecting the annular space at the wellhead with the oil collection system.

EFFECT: exclusion of associated petroleum gas from entering the atmosphere, increasing the safety of work carried out on wells.

1 cl, 1 dwg