Vortex blade type tubing plug and using method thereof
The invention belongs to the technical field of oil and gas equipment, and discloses a vortex blade type tubing plug and a using method thereof.The vortex blade type tubing plug comprises a center pipe, the lower end of the center pipe is connected with a screen pipe, a bottom cover is rotationally...
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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 vortex blade type tubing plug and a using method thereof.The vortex blade type tubing plug comprises a center pipe, the lower end of the center pipe is connected with a screen pipe, a bottom cover is rotationally arranged at the lower end of the screen pipe, an opening spring is arranged between the bottom cover and the screen pipe, and the periphery of the center pipe is sleeved with an outer cylinder; the lower end of the outer cylinder abuts against and limits the outer wall of the bottom cover. Vortex blades are arranged on the outer wall of the outer cylinder; the outer cylinder and the center pipe are in sliding sealing connection through an upper sealing ring, a lower sealing ring is arranged on the lower portion of the screen pipe, the outer wall of the lower sealing ring is in sealing contact with the inner wall of the outer cylinder, and the inner wall of the lower sealing ring is in sealing contact with the outer |
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