Method and system for separating and injecting water in a wellbo

Wells – Processes – Separating material entering well

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1661055, E21B 4338, E21B 4340

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060560541

ABSTRACT:
A method and system for increasing the production of hydrocarbons from a production well producing a mixture of hydrocarbons and water through a wellbore penetrating a formation having a production zone producing a mixture of hydrocarbons and water, and a selected injection zone, by separating, in the wellbore, at least a portion of the water from the mixture of hydrocarbons and water, to produce separated water and a hydrocarbon enriched mixture; injecting, by the use of a pump drivingly connected to a turbine, at least a major portion of the separated water into the selected injection zone; and recovering at least a major portion of the hydrocarbon enriched mixture.

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