FLUID FLOW DISTRIBUTOR IN FORMATION PRESSURE MAINTENANCE SYSTEMS Russian patent published in 2020 - IPC E21B43/20 E21B34/02 E21B43/12 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to oil and gas industry, namely, to pumping water into oil-bearing formations to maintain optimal pressure in them. Fluid flow distributor in the reservoir pressure maintenance systems includes a housing with a branch for supply of working fluid and channels for fluid extraction, one of which is equipped with a spring-loaded sealing unit with a seat. First channel with seal assembly communicated with first well group with high injectivity and low injection pressure is located at right angle to branch pipe having cross-sectional area, exceeding passage area of open sealing unit squeezed from seat by spring with force exceeding force of seal assembly pressing to seat in closed state. Second channel, which is coaxial to the branch pipe and interconnected with the second group of wells with lower permeability and higher pumping pressure compared to the first group, is additionally equipped with hydraulic resistance and hydraulic compensator installed between the second group of wells and hydraulic resistance.

EFFECT: technical result is higher reliability of fluid flow distributor.

1 cl, 2 dwg