Surveying drill for geothermal survey

Abstract

The survey drill comprises a retention outer drill pipe, a drill pipe fixing pipe sleeve, a drill bit pump body and a drill bit body, the retention outer drill pipe is sleeved with the drill pipe fixing pipe sleeve, the drill pipe fixing pipe sleeve is fixed to the outer side of the top end of the drill bit pump body in a threaded mode, and the top end of the drill bit pump body is sleeved with the retention outer drill pipe; the drill bit body is connected to the bottom end of the drill bit pump body. The design of an exploration mode is optimized, a traditional exploration mode is changed, the exploration mode is improved into a flexibly-connected drilling device, a retention outer drilling pipe capable of stabilizing a drill bit is designed, the drill bit is prevented from sliding, in addition, a multifunctional input pipeline is designed in the device, water, filler, mortar and other objects can be conveyed, and the drilling efficiency is improved. The empty hanging can also be used as a pipeline special for internal pressure relief, the drill bit of the structure can be separated, damage to a drill bit pump body is prevented, equipment loss caused by the fact that the drill bit is clamped is reduced, and the drill bit is suitable for being used and popularized.

Description

technical field [0001] The present invention relates to the field of geothermal survey, in particular to a survey drill for geothermal survey. Background technique [0002] Geothermal surveying refers to the exploration of the subsurface to find viable active geothermal areas with the aim of building a geothermal power plant where thermal fluids drive turbines to generate electricity. Large-scale drilling rigs dig and drill. After digging, large and ineffective holes need to be filled, which is relatively troublesome. In the process of digging, if the drill bit digs into a hard rock layer, it is easy to get stuck, which will also cause The drill bit and the drill pipe are forced to be discarded, resulting in a large cost loss. Therefore, a survey drill for geothermal survey is designed. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a kind of survey drill for geothermal survey, to solve the above-mentioned technical problem, the presen...

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Problems solved by technology

[0002] Geothermal survey refers to the exploration of the ground to find feasible active geothermal areas. The purpose is to build a geothermal power plant, where thermal fluid drives turbines to generate electricity. Geothermal surveys require drilling to survey underground heat. The traditional way is through Large-scale drilling rigs are used for drilling. After drilling, large and invalid holes need to be filled, which is relatively troublesome. In addition, during the drilling process, if the drill bit digs into a hard rock formation, it is easy to get stuck, which will also cause Drill bits and drill pipes are forced to be discarded, resulting in a large cost loss, so a survey drill for geothermal survey is designed

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