Laser drilling device

A drilling and laser technology, used in drilling equipment, directional drilling, application of thermal energy drilling, etc., can solve the problems of low drilling speed, high cost, and wear and tear of drilling tools

Inactive Publication Date: 2020-07-07
广州探霸仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a laser drilling device, which is used to solve the proble

Method used

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  • Laser drilling device

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention will be further described:

[0026] Such as figure 1 As shown, this laser drilling device includes a surface part and an underground part. The underground part is mainly a drilling device installed in the wellbore, and the surface part is a device for supplying power to the underground drilling device, providing high-pressure gas, and processing bottom lava or dust. . Such as figure 1 As shown, a casing head 8 is installed in the wellhead above the ground to keep the inside of the wellbore 1 closed so as to realize gas circulation. A casing is laid at the surface depth of the wellbore 1, and the casing is a conventional casing with a length of about 100-200m. The conduit 2 extends downward into the wellbore 1 and extends to the bottom of the wellbore 1. The conduit 2 is a coiled pipe or a drill pipe, or it can be a string of other materials with high temperature resistance and certain strength and ...

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Abstract

The invention relates to a laser drilling device. The laser drilling device comprises a ground part and an underground part, in a wellbore below the ground, a communicating guide pipe downwards extends from the ground into the wellbore and reaches the bottom of the wellbore, a measurement-while-drilling guiding instrument and a laser are mounted in the guide pipe, a cable downwards extends into the wellbore and is connected with the measurement-while-drilling guiding instrument and the laser, and stabilizers are mounted in an annular cavity between the guide pipe and the wellbore; a casing head is mounted at a ground wellhead, and the guide pipe penetrates through the casing head to be connected to a gas outlet hole of a gas compression booster station to form a gas inlet channel; and thewellbore is connected with the casing head through a surface layer casing, the casing head is connected with the other guide pipe, and the guide pipe passes through a grit catcher, a dust remover anda liquid-gas separator and then is connected to a gas inlet hole of the gas compression booster station to form a circulating channel for dust discharge, purification and pressurization. The drillingspeed is high, the drilling cycle is saved, and drilling benefits are increased.

Description

[0001] 1. Technical field: [0002] The invention relates to a drilling device in the field of petroleum and natural gas engineering, in particular to a laser drilling device which utilizes a high-energy laser to instantly melt deep formation rocks. [0003] 2. Background technology: [0004] Deep formation drilling and surface rock drilling technology are mainly realized by breaking soft materials through hard materials. This rock breaking technology is usually called conventional mechanical drilling technology. Rock crushing technology is mainly carried out through the rotation, impact, shearing and other motion modes of rock breaking tools. When these rock-breaking methods break the formation rock and obtain a certain ROP, the self-wearing of the tool will occur, resulting in a large amount of tool consumption. In the deep formation below 1000m, especially in the special high abrasive and high drillability formation, the consumption of tools is very huge. Tooling costs can...

Claims

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Application Information

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IPC IPC(8): E21B7/14E21B7/04E21B17/10
CPCE21B7/04E21B7/14E21B17/1078
Inventor 杨军
Owner 广州探霸仪器有限公司
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