Reversible reinforcement device for underground workover treatment of oil gas well
The invention discloses a reversible boosting device for underground workover treatment of an oil gas well, which comprises more than one pull-up hydraulic cylinder and a press-down hydraulic cylinder, the outside of a central control pipe is connected with more than one pull-up hydraulic cylinder,...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
18.04.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a reversible boosting device for underground workover treatment of an oil gas well, which comprises more than one pull-up hydraulic cylinder and a press-down hydraulic cylinder, the outside of a central control pipe is connected with more than one pull-up hydraulic cylinder, and a balance liquid inlet check valve I is arranged at the lower end of the central control pipe; a pull-up hydraulic cylinder outside the central control pipe is hung on a hanging step on the outer wall of the central control pipe through a central pipe connector pressing cap and a central pipe connector; the lower part of the central control pipe is connected with more than one pressing hydraulic cylinder through a conversion joint; a balance liquid inlet check valve II is arranged below the pressing hydraulic cylinder at the lowest end; the workover tool joint is connected below the pressing hydraulic cylinder at the lowermost end; and the pull-up hydraulic cylinder connected to the lowermost part outside the c |
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Bibliography: | Application Number: CN202111195491 |