Tubing plug and using method thereof
The invention belongs to the technical field of oil and gas equipment, and discloses a tubing plug and a using method thereof.The tubing plug comprises an outer barrel, an inner barrel and a starting plug, a buffer base is arranged at the top of the inner barrel, a gravity coupling switch, an electr...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of oil and gas equipment, and discloses a tubing plug and a using method thereof.The tubing plug comprises an outer barrel, an inner barrel and a starting plug, a buffer base is arranged at the top of the inner barrel, a gravity coupling switch, an electric cylinder and a piston barrel are arranged in the inner barrel, a sealing cavity is formed in the lower section of the inner barrel, and the gravity coupling switch is located below the buffer base; the gravity coupling switch is electrically connected with the electric cylinder, the electric cylinder is connected with a piston in the piston barrel, and the piston barrel is communicated with the sealing cavity; a through hole is formed in the side wall of the sealing cavity and covered with an expansion rubber sleeve, and a check valve is arranged at the bottom of the sealing cavity. The tubing plug provided by the invention can be directly tripped into a well along with the tubing, the unlocking mode of the tubi |
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