Hydraulic cutting device and method for oil and gas well casing
The invention provides a hydraulic cutting device and method for an oil and gas well casing. The device comprises a clamping unit, a rotating unit and a hydraulic cutting unit, and the clamping unit can be fastened to a casing pipe; the rotating unit is connected with the clamping unit and can drive...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
24.10.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides a hydraulic cutting device and method for an oil and gas well casing. The device comprises a clamping unit, a rotating unit and a hydraulic cutting unit, and the clamping unit can be fastened to a casing pipe; the rotating unit is connected with the clamping unit and can drive the hydraulic cutting unit to do circumferential movement along the sleeve; and the hydraulic cutting unit can be driven by the rotating unit to cut the sleeve and/or perform end face beveling operation after cutting. The cutting method is realized based on the hydraulic cutting device for the oil and gas well casing and comprises the following steps: installing the hydraulic cutting device for the oil and gas well casing; cutting operation is conducted; the casing pipe is lifted out; the blowout preventer is moved away; and then a casing head is installed. The device has the beneficial effects that the device is simple in structure, light and convenient to use, rapid to install, high in cutting efficiency and cut |
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Bibliography: | Application Number: CN202210376544 |