Microwave rock breaking drilling device

Abstract

The invention provides a microwave rock breaking drilling device. The microwave rock breaking drilling device comprises an integrated drill bit assembly, a microwave generation assembly and a water jetting dust removal assembly. The integrated drill bit assembly comprises a drill bit body, a cutter head and cutting teeth. The cutter head and the cutting teeth are arranged on the drill bit body. The microwave generation assembly comprises microwave emission holes, and the microwave emission holes are formed in the drill bit body and communicate with the outside. The water jetting dust removal assembly comprises water jetting holes, and the water jetting holes are formed in the drill bit body and communicate with the outside. On the one hand, when hard rock drilling is carried out, the microwave generation assembly is used for performing microwave action on rock, the rock temperature field is changed to soften the rock, the rock strength is reduced, drill bit abrasion is reduced, and therock breaking efficiency is improved; and on the other hand, the influence of mud, dust and the like on the microwave emission holes is effectively solved through a water jetting cleaning system, theeffect of reducing the temperature of the drill bit can be achieved, the rock wave absorbing capacity is enhanced, the microwave effect is improved, efficiency is improved, and losses are reduced.

Description

technical field [0001] The invention relates to the technical field of drilling, in particular to a drilling and rock-breaking device, in particular to a drilling device that utilizes microwaves to soften rocks and assist in rock-breaking. Background technique [0002] Drilling refers to the working process of using mechanical equipment or manpower to drill the formation into holes from the ground. It is usually used in the exploration or development of liquid and gaseous minerals such as oil and natural gas to drill boreholes and large-diameter water supply wells. It is widely used in national economic construction. At present, the commonly used drilling methods are divided into sudden drilling and rotary drilling. [0003] Drilling is also called percussion drilling. The power drive device drives the steel wire rope and the drill bit to produce up-and-down impact to achieve the effect of rock breaking. This method has the disadvantages of slow drilling speed and low effic...

AI Technical Summary

Problems solved by technology

[0003] Drilling is also known as percussion drilling. The power drive device drives the wire rope and the drill bit to produce up and down impact to achieve the effect of rock breaking. This method has the disadvantages of slow drilling speed and low efficiency, and cannot meet the requirements of deep drilling and complex formation drilling.

The working principle of rotary drilling is to rotate the drill bit under a certain axial pressure (weight-on-bit) to cut or roll the rock into debris. Compared with percussion drilling, it can greatly improve drilling efficiency and adapt to various complex downhole formations. It has become the current mainstream drilling method, but the disadvantage is that when the rock hardness is high, the rock breaking speed will largely depend on the hardness of the drill bit itself. When breaking rock with high hardness, the drilling equipment is not economical due to the wear of the cutterhead. competitiveness, or not operating at full production capacity due to increased rock hardness and maintenance

[0004] The two mainstream drilling methods in the industry both have bottlenecks that are difficult to break through to a certain extent, which leads to problems such as high drilling costs and low drilling efficiency

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