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Combined high-voltage discharge type drilling device and drilling method

A high-voltage discharge and high-voltage electrode technology, which is applied to drilling equipment and methods, drilling equipment, and drilling automatic control systems, can solve the problems of drill bit wear and low drilling speed, and reduce tripping time and wear. , easily broken effect

Active Publication Date: 2019-07-02
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined high-voltage discharge drilling device. This combined high-voltage discharge drilling device is used to solve the problems of low drilling speed and serious drill bit wear in traditional mechanical grinding. Another purpose of the present invention is to provide this combined high-voltage discharge drilling device. Drilling method of discharge drilling device

Method used

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  • Combined high-voltage discharge type drilling device and drilling method
  • Combined high-voltage discharge type drilling device and drilling method
  • Combined high-voltage discharge type drilling device and drilling method

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Embodiment Construction

[0032] The present invention will be further described in conjunction with accompanying drawing below:

[0033] combine figure 1 , figure 2 , image 3 As shown, this combined high-voltage discharge drilling device includes: cable 1, cable channel 2, revolving turntable 3, drill pipe 4, two chambers 5, telescopic device 6, laser range finder 7, grounding rod 8, grounding electrode 9 , a high-voltage electrode 10, a drill bit 11, a pressure plate group 12, an autorotation turntable 13, a connecting rod 14, a signal transmission device 15, a pulse current generator 16, a pressure sensor 17 and a connection plate 18; the revolution turntable 3 is installed on the top of the drill pipe 4, The cable channel 2 is designed on the inner wall of the drill pipe 4, and the cable 1 is located inside the cable channel 2; the pulse current generator 16 is connected under the cable 1, and the pulse current generator 16 is connected to the ground electrode 9 and the high-voltage electrode 1...

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Abstract

The invention relates to a combined high-voltage discharge type drilling device and a drilling method. The combined high-voltage discharge type drilling device comprises a drill rod, two chambers, a laser range finder, a drill bit, a high-voltage electrode and a grounding electrode; an inner cavity of the two chambers is separated into a left side chamber and a right side chamber; the right side chamber is internally provided with a pulse current generating device and a signal transmission device; the drill rod is connected to the upper end of the two chambers, a revolution turntable is installed at the top end of the drill rod, the pulse current generating device is connected with the grounding electrode and the high-voltage electrode through a telescopic device, and the laser range finder is installed on the outer wall of the telescopic device; a grounding rod is mounted on the telescopic device, one end of the grounding rod is connected with the grounding electrode through the telescopic device, and one end of the grounding rod is exposed outside the telescopic device; and a rotation turntable is arranged on the lower surface of the left side chamber, the rotation turntable is connected with a pressure plate group, and the drill bit is connected with the pressure plate group through a connecting plate. The combined high-voltage discharge type drilling device performs drilling by means of pulse discharge shock waves, plasma channels and mechanical grinding, the drilling speed is increased, and the wear of the drill bit is reduced.

Description

[0001] Technical field: [0002] The invention relates to the field of drilling engineering, in particular to a combined high-voltage discharge drilling device and a drilling method. [0003] Background technique: [0004] A good drilling method and drill bit are an important part of drilling. From traditional rock breaking with mechanical drilling tools to rock breaking with cavitation water jets and high-voltage pulse discharge rock breaking, many scientific researchers are constantly exploring new and effective drilling methods. During the drilling process, the traditional mechanical drilling tools have a series of shortcomings such as easy wear of the drilling tools and slow drilling speed. The advantage of high-voltage pulse discharge crushing is that the crushing speed is fast, but its energy consumption is high, and the pulse transmission efficiency of the transmission line is low. Therefore, the two drilling methods are combined to make the drilling speed fast and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B10/00E21B12/00E21B44/02
CPCE21B7/00E21B10/00E21B12/00E21B44/02
Inventor 李沼萱闫铁李玮于海涛吴雨农单丹丹
Owner NORTHEAST GASOLINEEUM UNIV
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