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Multifunctional drilling slip

A drilling stick and multi-functional technology, applied in the direction of drilling equipment, drill pipe, drill pipe, etc., can solve the problems of long operation period, lack of safety, lack of feedback or interlocking, etc., and achieve the effect of straightening the pipe string

Pending Publication Date: 2021-05-21
JIANGSU RUTONG PETRO MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the drilling slips are controlled and driven by pneumatic or hydraulic pressure, which lacks effective feedback or interlocking, or only relies on single-condition locking, which lacks safety
In the actual drilling process, sometimes according to the on-site process requirements, it is necessary to adjust the drilling tool specification on site. The existing technology needs to pull out the slip body, disassemble the tooth plate and reinstall it, and the operation cycle is long.

Method used

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Examples

Experimental program
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Effect test

Embodiment approach

[0044]Driven by the lifting cylinder 4, the balance beam 3 rises, and at this time, the safety cylinder 53 in the first safety mechanism is in an unloaded state, and the piston rod in the safety cylinder 53 retracts under the action of the spring, driving the safety lever 52 Incline to one side of the balance beam 3, and lean against the side end of the balance beam 3, without hindering the rise of the balance beam 3. As the balance beam 3 continues to rise, the support of the balance beam 3 is lost, and the safety lever 52 is further tilted to balance the lower part of the beam 3;

[0045] When the slip body 2 rises to the sensing position of the ascending travel switch, the lifting cylinder 4 acts to stop the upward movement and keep the slip body 2 at the current position. 3 is held up by the safety lever 52 after going down to the safety lever 52, so as to avoid continuing to drop and cause the drill to be stuck and stop drilling, which plays a role of mechanical insurance...

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PUM

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Abstract

The invention provides a multifunctional drilling slip. The multifunctional drilling slip comprises a main body, a slip body, a balance beam, a lifting air cylinder and a first safety mechanism, wherein the lifting air cylinder, the slip body and the first safety mechanism are arranged in the main body, the piston rod end of the lifting air cylinder is connected with the balance beam, the balance beam is connected with the slip body through a connecting rod, the first safety mechanism comprises a safety base, a safety lever and a safety air cylinder, the safety base is fixedly arranged on the main body, the safety lever is rotationally arranged on the safety base, and the safety air cylinder is arranged at one end of the safety lever. The first safety mechanism can effectively prevent the phenomena of drilling jamming and pausing caused by the fact that in the drilling process, after air of the lifting air cylinder is cut off accidentally, single pneumatic locking fails and the slip body descends.

Description

technical field [0001] The invention relates to the field of oil drilling equipment, in particular to a multifunctional drilling slip with mechanical interlock. Background technique [0002] In the prior art, the drilling slips are controlled and driven by pneumatic or hydraulic pressure, which lacks effective feedback or interlocking, or only relies on single-condition locking, which lacks safety. In the actual drilling process, sometimes it is necessary to adjust the specifications of the drilling tool on site according to the technical requirements on site. The existing technology needs to pull out the slip body, disassemble the tooth plate and reinstall it, and the operation cycle is long. In addition, when tripping to replace the drill bit, it is necessary to remove the slip body from the drill plate and then install the main bushing to break out the drill bit. [0003] Therefore, in view of the above defects, it is necessary to effectively innovate the prior art. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10
CPCE21B19/10
Inventor 张建顾雪亮陆勇建
Owner JIANGSU RUTONG PETRO MASCH CO LTD
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