Spring energy-storage inspiring type rotary percussive drill device

A technology of percussion drilling and spring energy storage, which is applied to the driving device of rotary combined drilling, drilling equipment, earthwork drilling and production, etc. It can solve the problems of insufficient service life, prone to mechanism failure, and small impact load amplitude, etc. Achieve reasonable installation, speed up the drilling process, and reduce drilling resistance

Active Publication Date: 2013-06-26
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two impact rotating devices still have problems such as mechanism pr

Method used

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  • Spring energy-storage inspiring type rotary percussive drill device
  • Spring energy-storage inspiring type rotary percussive drill device
  • Spring energy-storage inspiring type rotary percussive drill device

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Embodiment Construction

[0030] see figure 1 , figure 2 , image 3 , Figure 4 As shown, the spring energy excitation type rotary percussion drilling device of the present invention includes a downhole motor (belonging to the prior art, not shown in the figure) and a drill pipe 1 connected to the downhole motor, and a drill bit 2 is arranged at the lower end of the drill pipe In this embodiment, the drill pipe is vertically arranged at the lower end of the downhole motor, and is connected to the rotary drilling motor through threads, and the drill bit is detachably connected to the drill pipe through threads, and the drill pipe is provided with There is an impact mechanism, which is arranged coaxially with the drill pipe as a whole. The impact mechanism includes a downhole motor 3, a rotating shaft 4 arranged at the lower end of the downhole motor, and a shock and vibration kit sleeved at the lower part of the rotating shaft. The downhole motor described in this embodiment is connected to the rota...

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Abstract

The invention relates to a spring energy-storage inspiring type rotary percussive drill device, in particular to the spring energy-storage inspiring type rotary percussive drill device which produces quick continuous impact due to the fact that a down-hole motor, a rotating shaft and an impact vibration kit match with each other. The spring energy-storage inspiring type rotary percussive drill device comprises the down-hole motor and a drill pipe which is connected with the down-hole motor, wherein a drill is arranged at the lower end of the drill pipe. The spring energy-storage inspiring type rotary percussive drill device is characterized in that an impact mechanism is arranged inside the drill pipe, and the impact mechanism comprises the down-hole motor, the rotating shaft which is arranged at the lower end of the down-hole motor and the impact vibration kit which is arranged at the lower portion of the rotating shaft in a sleeved mode. Due to the design of the impact mechanism, and the down-hole motor, the rotating shaft and the impact vibration kit match with each other, the quick continuous impact is produced, bit pressure high-frequently vibrates by a large margin in the drilling process, the drilling process is quickened and drilling efficiency is improved with the cooperation of torque-on-bit.

Description

technical field [0001] The present invention relates to a spring energy-excited rotary percussion drilling device, in particular to a spring energy-excited rotary percussion drilling device that generates rapid and continuous impacts through the cooperation of a downhole motor, a rotating shaft and a vibrating set. Background technique [0002] As the exploration and drilling of oil and natural gas continue to develop into the deep strata of the earth, the number of hard strata encountered in the actual exploration and drilling process gradually increases. The rocks in this stratum have poor drillability as the hardness increases. . There is an urgent need for a new drilling tool and method to increase drilling speed. Practice has shown that percussion rotary drilling technology can greatly improve rock breaking efficiency and drilling speed by taking advantage of the characteristics that rocks are easy to break under impact loads. This technology has begun to be applied i...

Claims

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Application Information

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IPC IPC(8): E21B6/02
Inventor 管志川玄令超张会增史玉才廖华林刘永旺张洪宁
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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