Inclining and vertical well drilling rig automatic drill pipe slip device

A technology for inclined vertical wells and drilling rigs, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., and can solve problems such as drill string eccentric wear at the wellhead, and achieve the effects of reducing labor intensity, improving safety and work efficiency

Inactive Publication Date: 2013-11-20
CHINA PETROLEUM LIAOHE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the deficiency of the drill string eccentrically wearing the wellhead when the existing drill pipe slip device is drilling in deviated well

Method used

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  • Inclining and vertical well drilling rig automatic drill pipe slip device
  • Inclining and vertical well drilling rig automatic drill pipe slip device
  • Inclining and vertical well drilling rig automatic drill pipe slip device

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Embodiment Construction

[0012] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown in the figure, an automatic drill pipe slip device for an inclined vertical well drilling rig is composed of two replaceable slip body devices 1, a slip seat device 2 and a wellhead anti-wear roller device 3; the slip seat device 2 includes a slip seat 4 and the shield 9, the shield 9 is installed on the slip seat 4, the hydraulic cylinder 5 is hinged with the pin shaft welded on the slip seat 4, and the piston rod 13 used in conjunction with the hydraulic cylinder 5 passes through the pin shaft and the double clevis 12 is hinged, the driving shaft 11 is hinged with the double clevis 12 and the transmission link 8 through the pin shaft, the transmission link 8 is hinged with the driven shaft 6 through the pin shaft, and the driving shaft 11 and the driven shaft 6 are installed on the slip seat 4 In the round hole at the upper end, the left lifting arm 7 is fixedly connected with the driven shaft 6...

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Abstract

The invention relates to a land petroleum drilling rig device, in particular to an inclining and vertical well drilling rig automatic drill pipe slip device. A slip seat device of the inclining and vertical well drilling rig automatic drill pipe slip device comprises a slip seat and a shield, wherein the shield is installed on the slip seat, a hydraulic cylinder is hinged to a hinge pin which is fixedly welded to the slip seat, a piston rod which is used in cooperation with the hydraulic cylinder is hinged to a double-lug ring through a hinge pin, a driving rotary shaft is hinged to both the double-lug ring and a transmission connecting rod through hinge pins, the transmission connecting rod is hinged to a driven rotary shaft through a hinge pin, the driving rotary shaft and the driven rotary shaft are installed in round holes formed in the upper end of the slip seat, a left lifting arm is fixedly connected with the driven rotary shaft, and a right lifting arm is fixedly connected with the driving rotary shaft. The inclining and vertical well drilling rig automatic drill pipe slip device has the advantages that a drill rod is clamped and held in the process of tripping operation, the labor intensity of workers is relieved, a drill stem is prevented from wearing a well opening in an eccentric mode when an inclining well is drilled, and safety and the working efficiency are improved. The inclining and vertical well drilling rig automatic drill pipe slip device overcomes the defect that a drill stem wears the well opening in an eccentric mode when the inclining well is drilled through an existing drill pipe slip device.

Description

Technical field: [0001] The invention relates to land oil drilling rig equipment, in particular to an automatic drill pipe slip device of an inclined vertical well drilling rig. Background technique: [0002] At present, the structural form of the drill pipe slips of traditional oil drilling rigs is usually suitable for vertical well drilling. Since the slip device must be inclined at a certain angle with the derrick during inclined well drilling, the lower end of the slip body of the ordinary drill pipe slip device is due to The gravity factor is placed on the drill pipe, which will cause certain difficulties in lifting or lowering the drill pipe; in addition, due to the weight of the lower end of the drill string will produce a certain deformation, during the normal drilling operation of the inclined well, the drill string will be caused. The problem of partial wear of the wellhead appears. Invention content: [0003] The technical problem to be solved by the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10
Inventor 吕宏伟常玉连王威张瑞杰张丽巍
Owner CHINA PETROLEUM LIAOHE EQUIP
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