METHOD OF COMPLETION OF HORIZONTAL PRODUCTION WELL CONSTRUCTION WITH DEPOSIT INTERVAL HYDRAULIC FRACTURING Russian patent published in 2015 - IPC E21B43/02 

FIELD: oil and gas industry.

SUBSTANCE: during the method implementation the production casing is run and secured prior to the beginning of the well horizontal section, then the deposit interval hydraulic fracturing is performed in zones of the well bore that differ by the porosity and permeability characteristics by 1.5-1.6 times, in the well bore on the process pipes string the liner plugged at bottom and hydraulically disconnected, it has filters, between them the casing oil swelling packers are installed, at that number of the filters is equal to number of intervals of the deposit hydraulic fracturing, the casing oil swelling packers are installed with possibility of tight separation of intervals of the deposit hydraulic fracturing from each other during contact with oil. On the external surface of each filter the oil swelling filter in form of the elastic hose with holes is installed. At the contact with water the holes in the elastic hose shrink and tightly close from outside the holes in the filters. The process pipes string is disconnected from the plugged at bottom removable lining, the process pipes string is removed to the surface, pipes with pump are run in the horizontal well, and the horizontal well is put into operation.

EFFECT: increased efficiency and reliability of the method, simplified process, increased oil recovery of the production deposit.

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