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High-voltage pulse drill bit and rock breaking experimental facility

A high-voltage electric pulse and drill bit technology, which is applied in the field of rock engineering, can solve the problems of high drilling cost, low drilling efficiency, and large drill bit wear, and achieve the effects of low drill bit wear, low noise and vibration levels, and high well wall quality.

Pending Publication Date: 2020-05-08
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drilling depth of oil, natural gas, geothermal wells and other exploration and development continues to increase. When drilling deep holes, ultra-deep holes and hard rocks, traditional mechanical drilling tools have disadvantages such as low drilling efficiency, high drilling costs, and large drill bits.

Method used

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  • High-voltage pulse drill bit and rock breaking experimental facility
  • High-voltage pulse drill bit and rock breaking experimental facility
  • High-voltage pulse drill bit and rock breaking experimental facility

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Embodiment Construction

[0035] In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] Embodiments of the present invention provide a high-voltage electric pulse drill bit and a rock-breaking experimental device.

[0037] Please refer to Figures 1 to 4 , figure 1 It is the axonometric structure diagram of the high-voltage electric pulse drill bit and the rock-breaking experimental device in the embodiment of the present invention, figure 2 It is the external structure diagram of the high-voltage electric pulse drill bit in the embodiment of the present invention, image 3 is the internal structure diagram of the high-voltage electric pulse drill bit in the embodiment of the present invention, Figure 4 is the equivalent circuit diagram of the high-voltage pulse power supply in the embodiment of the presen...

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PUM

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Abstract

The invention provides a high-voltage pulse drill bit and a rock breaking experimental facility. The high-voltage pulse drill bit is located over a rock and comprises a plurality of negative electrodes, a negative electrode fixing sleeve for fixing the negative electrodes, a positive electrode, an insulating sleeve, a spring, an insulating handle and a cable. The positive electrode is divided intoa positive electrode upper half portion and a positive electrode lower half portion which are in threaded connection with each other. The rock breaking experimental facility comprises a servo electric cylinder, a control assembly, the high-voltage pulse drill bit, a high-voltage pulse power source, a material container assembly, an aluminum profile support and an aluminum base and is used for breaking the rock. The high-voltage pulse drill bit and the rock breaking experimental facility have the advantages that the rock breaking drilling efficiency is high, and the quality of the wall of a well is high; as for an irregular rock, the contact between the electrode and the rock is closer through adjustment of extending and retracting of the positive electrode, and thus the rock is broken more effectively; and the noise and vibration are reduced, the abrasion to the drill bit is small, and the energy consumption is small.

Description

technical field [0001] The invention relates to the field of rock engineering, in particular to a high-voltage electric pulse drill bit and a rock-breaking experimental device. Background technique [0002] The 21st century is the century of the development and utilization of underground space. The revolution of underground space has become a frontier international strategic proposition. It has become the national strategy of all countries in the world to seek underground space and resources. The construction of super underground projects is inseparable from super equipment and needs to rely on High-quality development of equipment manufacturing industry. The International Energy Agency predicts that in 2030, nearly 50% of the production of crude oil and natural gas will be produced by deep wells, ultra-deep wells, new fields such as deep sea and polar regions, and unconventional wells such as oil sands. The drilling depth of exploration and development of oil, natural gas,...

Claims

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Application Information

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IPC IPC(8): E21B7/15E21B10/00G01M13/00G01R31/00
CPCE21B7/15E21B10/00G01M13/00G01R31/00
Inventor 段隆臣李傲李昌平吴来杰谭松成郑君周燕
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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