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Abstract

Methods and systems produce petroleum products with multiple horizontal wells through which injection processes precondition and displace the hydrocarbons in a formation. The wells extend through the formation spaced apart from one another in a lateral direction. Before fluid communication is established between the wells, cyclic injections and production of resulting backflow initiates conditioning of immobile products. Alternating between injection and production at adjacent wells may then facilitate establishing the fluid communication. After the fluid communication is established, a displacement procedure sweeps the hydrocarbons from one of the wells used for injection toward an adjacent one of the wells used for production.

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First Claim