Horizontal bar self-shearing high temperature sealer

Abstract

The invention discloses a single-screw self-shearing high temperature well sealer functional in quickly and automatically sharing a cable or steel cable and finishing well self-sealing, comprising a body. A left plate is disposed at the left end of the body, a right plate is disposed at the right end of the body. A rotating screw is rotatably disposed inside the left plate through a bearing and a locknut. The rotating screw is provided with a spring and a slider. The left end of the spring is abutted to the rotating screw, the right end of the spring is abutted to the left end of the slider, the right end of the slider is fitted to a locking groove in the left end of the moving screw, the moving screw is provided with three threads, the first left-hand thread is disposed at the left end of the moving screw, the right-hand thread is disposed in the middle of the moving screw, the second left-hand thread is disposed at the right end of the moving screw, the left end of the moving screw is disposed inside the rotating screw, the middle of the moving screw is disposed inside an elongated nut, and the left side of the elongated nut is connected with a screw spacer.

Description

technical field [0001] The invention relates to a well drilling equipment, in particular to a horizontal bar self-shearing high temperature well sealing device. Background technique [0002] The sealer is a key part of the well control device. It is mainly used for midway testing of drilling, oil production, and oil testing, as well as downhole operations for new well perforation and oil fishing operations. It controls wellhead pressure during operations and effectively prevents blowout accidents. , must be equipped with a sealer to ensure the safety of operators and equipment. The sealer will use cables or steel cables when performing downhole operations such as fishing for oil. During use, an additional cutting device is required to cut the cables. Or steel cable cutting, the operation is inconvenient, which has higher and higher requirements for the well sealing device, the configuration is too high but the cost is also high, and the operation is complicated. Contents o...

AI Technical Summary

Problems solved by technology

[0002] The sealer is a key part of the well control device. It is mainly used for midway testing of drilling, oil production, and oil testing, as well as downhole operations for new well perforation and oil fishing operations. It controls wellhead pressure during operations and effectively prevents blowout accidents. , must be equipped with a sealer to ensure the safety of operators and equipment. The sealer will use cables or steel cables when performing downhole operations such as fishing for oil. During use, an additional cutting device is required to cut the cables. Or steel cable cutting, the operation is inconvenient, which has higher and higher requirements for the sealing device, the configuration is too high but the cost is also high, and the operation is complicated

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