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...

Full description

Saved in:
Bibliographic Details
Main Authors MO GUANGWEN, SHEN FU, HE BIN, LIU JUN, WU JUN, FAN RONGGUI, YU KEBIN, XIONG MINGYONG, YANG KUN, YANG FEI
Format Patent
LanguageChinese
English
Published 24.10.2023
Subjects
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
CUTTING
CUTTING-OUT
GRINDING
HAND CUTTING TOOLS
PERFORATING
PERFORMING OPERATIONS
POLISHING
PUNCHING
SEVERING
SEVERING BY MEANS OTHER THAN CUTTING
STAMPING-OUT
TRANSPORTING
Online AccessGet full text

Cover

More Information
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
Bibliography:Application Number: CN202210376544