FIELD: oil and gas industry.
SUBSTANCE: group of inventions relates to wells operation in several horizons. Device creating at least one system of pipe strings contains at least one intermediate distribution adapter sub or radial passage for fluid from the reservoir, located between the top end of multiple pipes and bottom end of multiple pipes to create fixed pipe barriers inside the casing barrier, and correspondingly passage through the underground horizon surrounding the casing. The passage surrounding the casing is separated from the reservoir flow by insulation at bottom end, as result creating the said at least one system of pipe strings, and corresponding multiple number of fixed pipe pressure barriers for the reservoir flow between the wellhead pipes system at the top end and insulation at the bottom end. The fluids in the reservoir flow through the internal passage of multiple pipes and at least one concentric intermediate passage surrounding the internal passage to at least one flow regulator or from it. The said at least one flow regulator is made with possibility to move through it, to locate alongside and upon selection transversely, with possibility to remove form the transverse position by means of round trip through the internal passage for underground switching of the multiple flows of the fluids mixture along the radius inside or outside through the radial passage of the reservoir fluid. At that switching of the fluids mixture flow is performed between at least two of: internal passage and at least one concentric intermediate passage, and surrounding passage for selective regulation, during work, and for access to at least part of the fluids mixture flow of at least one of reservoirs. At that multiple flows of the fluid mixtures are transported to area close to the reservoir or from it during multiple operations with the reservoir.
EFFECT: reduced expenses for development of reserves in oil and gas industry.
30 cl, 83 dwg
