What is the connection between triangular drill pipe and geological drill pipe?


Release time:

2019-10-21

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Many customers easilytriangular drill pipeIt is confused with the geological drill pipe, except that the body of the triangular drill pipe has three edges and corners in appearance, and the body of the geological drill pipe is round. So, the nature of the drill pipe itself and what is the relationship between the triangular drill pipe and the geological drill pipe in the use process?

 
First of all, let's look at the materials of the two kinds of drill pipes. Geological drill pipes choose different materials according to different specifications and models. For φ 34-50mm, DZ50, φ 60-89mm drill pipes use R780 as the material of the drill pipe body, and drill pipe joints use high-quality alloy structural steel 42CRMOA. The triangular drill pipe body is made of high-quality geological alloy special steel pipe, and the drill pipe joint is made of high-quality medium carbon alloy structural steel. It is not difficult to see that the two drill pipes are made of roughly the same material, the rods are made of high-quality geological alloy special steel pipes, and the joints are made of high-quality alloy structural steel.

Secondly, geological drill pipe is mainly used for drilling, mining and anchoring in coal mines, mines, construction and water conservancy projects, railways, highways, bridges and tunnels. It is mainly used in coal mines to explore water, gas and roadway. The three edge drill pipe is widely used in coal seam and near coal seam geological conditions of drilling, coal mine water exploration and gas discharge drilling construction, can also be used in geophysical exploration and water conservancy construction project anchoring, drilling construction and other fields. There is no special distinction between the application fields of the two drill pipes, so the problem arises. Since there is no qualitative distinction, why should these two products be studied?

The key point is that the series of triangular drill pipe products are patented products with independent intellectual property rights developed by our company in recent years. According to different geological conditions, our company has designed and produced multiple series of triangular drill pipe products of different types and functions to meet the individual needs of different customers. The drilling efficiency and hole-forming rate are improved, and the probability of drilling tool locking and drill pipe breaking is greatly reduced. Reduce the cost of drilling construction, significantly improve the economic benefits of drilling construction. This series of technology fills the gap in the domestic industry and becomes an important product for drilling construction under complex geological conditions.
During the drilling process, three semicircular spaces are formed between the drill pipe of the triangular drill pipe and the borehole wall, which expands the passage for removing dust and gas and makes the gas and pulverized coal discharge smoothly. When the drill pipe is rotated and drilled, the triangular edge of the drill pipe continuously greasy the excess drilling slag to the hole wall to solidify the hole wall. It greatly reduces the occurrence of the phenomenon of drilling tool locking and drilling tool damage caused by hole collapse in soft coal seam. This product has the characteristics of reasonable design, safety and reliability, good slag discharge effect, deep drilling depth and good hole forming effect. In the relatively soft coal seam drilling, it is appropriate to use the wind slag drilling method, equipped with my company's production of light orifice dust device, can achieve the ideal drilling and hole effect. The flushing drilling method will increase the probability of hole collapse and sticking, but it still has high performance and hole forming advantages compared with the cylindrical drill pipe. In the selection of drill bits, it is advisable to have a diameter difference of 10-15mm from the drill pipe. Excessive diameter difference will reduce the greasy reinforcement effect of the triangular drill pipe body on the hole wall.

Through the analysis, you understand the geological drill pipe andtriangular drill pipeAlthough there are similarities in the material and scope of application, there is still a certain distinction in the drilling process. So no matter what kind of drilling tools, although applied in different drilling operations, but there will be some relevance!






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