A drop-proof pdc drill bit shackle

A drill bit and device body technology is applied in the field of anti-drop PDC drill bit shackles, which can solve the problems of deformed drill bits, slipping out and falling into wells, etc., and achieves the effects of improving durability and safety and improving safety.

Active Publication Date: 2022-06-03
CCDC PETROLEUM CORING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an anti-drop type PDC drill bit shackle, which solves the problem in the prior art that deformation may occur under the action of a relatively high torque, causing the drill bit to slip out of the shackle. Into the well medium problem

Method used

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  • A drop-proof pdc drill bit shackle
  • A drop-proof pdc drill bit shackle
  • A drop-proof pdc drill bit shackle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

The tension is tightly connected to the outer turntable 63 , and the control frame 65 can be connected to the outer turntable through the compression of the control spring 66

63 disengage.

[0040] The control module 6 can realize the control of the forward and reverse rotation of the force transmission shaft 3.

As a kind of preferred technical scheme, described control frame 65 is detachably connected with cap 68, and the displacement of cap 68 is detachable.

Kinetic energy controls that the control frame 65 can be fastened to the outer turntable 63 or disengaged from the outer turntable 63 .

[0042] The control module 6 can control the forward and reverse rotation of the force transmission shaft 3 by pulling the cap 68.

[0043] As a preferred technical solution, the end of the power transmission shaft 3 is provided with a shaft segment 31, and the shaft segment 31 and the accommodating

The box 61 is detachably connected.

[0044] This facilitates attachment and detachme...

Embodiment 2

[0061] The installation process of the control module 6 is as follows: first, the teeth are installed on the inner turntable 62, between the inner turntable 62 and the teeth 69

[0064] The function of the anti-drop device is to apply anti-drop protection to the drill bit to prevent the drill bit from falling into the wellhead. Enter

[0066] 1. When the anti-drop shackle device is in the initial state, the ring is contracted in the protection barrel 13, as shown in FIG. 8 . 2. When needed

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Abstract

The invention relates to the technical field of petroleum drilling, and discloses an anti-dropping PDC drill bit shackle, which includes a shackle body, a coil spring, a support frame connected to the shackle body, and a support frame connected to the shackle body. The accommodating frame on the body, the power transmission shaft connected to the support frame, the control module, the force applying member, and the net pocket, the power transmission shaft is wound with ropes, the end of the power transmission shaft and the control module Connected, one end of the rope is fixed on the power transmission shaft, the other end of the rope is fixed on the force application member, the force application member is connected with the net bag, and the coil spring The two ends are respectively connected with the accommodation frame and the power transmission shaft, and the power transmission shaft can rotate. The invention solves the problems existing in the prior art that the drill bit may slip out of the shackle and fall into the well due to possible deformation under the action of relatively high torque.

Description

A drop-proof PDC drill shackle technical field [0001] The present invention relates to the technical field of oil drilling, in particular to a drop-proof PDC drill bit shackle. Background technique In the field of oil drilling, the shackle is a kind of connection or separation of the drill bit and the drill pipe when the drill bit is used for tripping down the well. Auxiliary tool. The shackle can replace the manual shackle to improve the efficiency and safety when making and shattering. Its external structure is square. There is a slot corresponding to the shackle surface of the drill bit inside, and a handle for lifting is welded on the top. Push the drill in and out while working Close the baffle plate in the notch of the buckle, and then put it into the square patch on the turntable, and make the buckle through the torque of the drill pipe. but in actual During the operation of the drill bit, the shackle surface of the drill bit and the shackle surface of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/18
CPCE21B19/18
Inventor 姚建林刘彬郑凯中付强罗鑫余晟冯明董仕明周刚李勇张伟姚坤鹏黄伟唐思诗陈文才
Owner CCDC PETROLEUM CORING TECH
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