SYSTEM FOR PUMPING DISPLACEMENT AGENT INTO PRESSURE WELLS Russian patent published in 2010 - IPC E21B43/20 

FIELD: oil and gas production.

SUBSTANCE: system consists of separate channels for supply of displacement agent, and of immersed pumps lowered into bore pits and coupled with corresponding wells by means of discharge pipelines. Also bore pits are coupled with corresponding separate channels. According to the invention the pressure wells are divided into groups of high penetrability of formations and groups of low penetrability of formations equipped with bore pits and immersed pumps to form required additional pressure for pumping working substance into groups of wells with low penetrability of formations. Also groups of wells with similar penetrability of formations communicate with corresponding separate channels, wherein there is created pressure sufficient for pumping working substance into wells of high penetration. To create optimal operation of the immersed pumps, facilities with controlled hydro-resistance are arranged between the bore pits and corresponding separate channels. Also the immersed pumps and facilities with controlled hydro-resistance are equipped with corresponding by-pass lines with back valves.

EFFECT: reduced power consumption for pumping displacement agent.

1 ex, 1 tbl, 1 dwg