A submersible electric pump integrated valve

Abstract

The invention discloses an electric submersible pump integrated valve, and belongs to the technical field of electric submersible pumps. The electric submersible pump integrated valve comprises an upper cylinder barrel, a lower cylinder barrel and a cylinder head, wherein a shear pin is inlaid in the side wall of the top end of the upper cylinder barrel, a liquid discharge port is formed in the side wall of the upper cylinder barrel, an inner cavity of the upper cylinder barrel movably sleeves a movable valve core, an inner cavity of the movable valve core movably sleeves a liquid outlet screen pipe, the top of an inner cavity of the liquid outlet screen pipe sleeves a controllable valve core, the controllable valve core and the shear pin are matched with each other, a valve seat is fixedly arranged in the inner cavity of the movable valve core, a check valve is arranged at the top of the valve seat, an energy accumulator, a push rod and a spring are arranged in the inner cavity of thelower cylinder barrel, the top of the push rod is fixedly provided with an oil passing screen pipe, and the bottom of the push rod is connected with the energy accumulator. The electric submersible pump integrated valve solves the problem that an existing electric submersible pump is free of a controllable valve, so that environmental pollution is easily caused, the liquid amount of hot washing and well repairing well washing is reduced through conventional well-flushing, the liquid level of an oil sleeve is automatically balanced after the pump is stopped, the working efficiency is improved,and the heat preservation cost of a well mouth in winter is reduced.

Description

Technical field [0001] The invention relates to the technical field of electric submersible pumps, and specifically relates to an integrated valve for electric submersible pumps. Background technique [0002] At present, the direct drive submersible screw pump technology is basically mature (more than 300 applications across the country, with a power saving rate of 42%, 16 wells for medium-deep thick oil in the Ji 7 well area, and 1 well for shale oil JHW003, exploratory well operations. District 2. The power saving rate is 45%), and it has the conditions for large-scale promotion. Xinjiang Oilfield combined the "new two methods" and actively responded to the requirements of the joint-stock company for large platforms, large well clusters, and factory construction to carry out this project, with "factory drilling, rodless pumping, integrated construction, and intelligent management" as the core, innovation A new development model for lifting technology, creating a rodless electr...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an integrated valve for electric submersible pumps to solve the problem in the above background technology that current electric submersible pumps have no controllable valves, which may easily cause environmental pollution, cannot realize positive circulation well washing, and increase the winter The problem of wellhead insulation cost

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