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Anti-rotation device for well path control

A wellbore trajectory and anti-rotation technology, applied in directional drilling and other directions, can solve the problem that the anti-slip roller is easy to damage the inner wall of the sleeve, and achieve the effect of increasing friction

Inactive Publication Date: 2018-10-12
张剑
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem mainly solved by the present invention: In view of the problem that the anti-slip roller in the existing anti-rotation device is easy to damage the inner wall of the sleeve, the present invention provides an anti-rotation device for wellbore trajectory control

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Embodiment Construction

[0022] An anti-rotation device for wellbore trajectory control, comprising a drill pipe sleeve 1 and a drill pipe 6, the outer surface of the drill pipe sleeve 1 is provided with an anti-slip seat 2, and the anti-slip seat 2 is provided with an anti-slip roller 3 inside, The anti-skid roller 3 is installed on the movable part 8 inside the anti-skid seat 2 through the rotating shaft 5. The two ends of the anti-skid roller 3 are provided with springs 4, and a return spring 9 is arranged between the movable part 8 and the anti-skid seat 2. The drill rod 6 Through the inside of the anti-rotation device, the anti-rotation device is arranged inside the sleeve 7 . An application method of the anti-rotation device used for wellbore trajectory control is as follows: the drill pipe 6 passes through the anti-rotation device, the anti-rotation device is arranged inside the sleeve 7, and the movable part 8 inside the anti-slip seat 2 is in the position of the return spring 9 is close to th...

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Abstract

The invention relates to an anti-rotation device for well path control, and belongs to the technical field of oil drilling exploitation tools. A drilling rod passes through the interior of the anti-rotation device, the anti-rotation is arranged in a sleeve, moving parts in anti-skid seats are tightly attached to the inner wall of the sleeve under the action of reset springs, and anti-skid rollersare tightly attached to the inner wall of the sleeve. When the drilling rod rotates, the drilling rod drives the anti-rotation device to rotate, because the anti-skid rollers are tightly attached to the inner wall of the sleeve, the friction between the anti-rotation device and the inner wall of the sleeve is much larger than that between the drilling rod and the drilling rod sleeve, so that whenthe drilling rod rotates, the anti-rotation device can ensure that the sleeve does not move to prevent the sleeve from rotating. The anti-rotation device for the well path control increase the friction between the anti-rotation device and the sleeve by adopting the anti-skid rollers, the anti-skid rollers are arranged to be prismatic to increase the contact area and friction, the anti-skid rollersare in surface contact with the inner wall of the sleeve, and the anti-skid rollers are not prone to damaging the inner wall of the sleeve.

Description

technical field [0001] The invention relates to an anti-rotation device for wellbore trajectory control, belonging to the technical field of petroleum drilling tools. Background technique [0002] During the drilling process, it is difficult to avoid the phenomenon of wellbore inclination and direction change. In consideration of cost reduction, safe drilling, benefit to mechanical oil recovery, and the correct implementation of the development plan, it is hoped that the well deviation can be controlled within a certain range. Both theory and practice have shown that optimizing the drill tool assembly on the drill collar can effectively increase, stabilize and build up the deflection during the drilling process, and solve the above problems in the drilling process, so the stabilizer has been rapidly improved. development and application. [0003] There are many types of stabilizers, which can be divided into three types according to the relative motion between the stabiliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04
CPCE21B7/04
Inventor 张剑赵兴华朱华
Owner 张剑
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