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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG JIXIAO, LIU XIAODONG, LIU RUI, LUO XIAOLIN, YANG LEI, YI DEZHENG, JIANG YUAN, YIN GANG, DU TAIYONG, YU BING, ZHANG HANTAO, HE WEILI, WU KE, LAI NING, LUO WEI, TAN HONGBING, LAN RUIHONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
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