Drill with open water hole

An open, water hole technology, used in construction and other directions, can solve the problems of reducing the service life of the drill bit, unreasonable hydraulic structure of the drill bit, etc., to achieve the effect of improving the hydraulic utilization rate, broadening the cleaning and cooling range, and increasing flexibility.

Active Publication Date: 2016-12-07
成都海纳能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drill bit with an open water hole in order to solve the problem of reducing the service life and drilling performance of the drill bit due to the unreasonable hydraulic structure of the drill bit in the process of fast drilling and high temperature drilling.

Method used

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  • Drill with open water hole
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Examples

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Embodiment Construction

[0028] The following non-limiting examples serve to illustrate the invention.

[0029] refer to Figures 1 to 6 As shown, a drill with an open water hole includes a drill body 1, a cutting structure 2, cutting teeth 4, a chip flute 3, an inner flow channel 11 and a water hole 5, and the cutting structure 2 is arranged on the drill body 1, The cutting teeth 4 are arranged on the cutting structure 2 , the inner flow channel 11 is arranged in the drill body 1 , the chip removal groove 3 is arranged between the cutting structures 2 , and the water hole 5 is arranged between the inner flow channel 11 and the chip removal groove 3 . Connecting the inner flow channel 11 and the chip removal groove 4, the feature of the present invention is that there is only one water hole 5, and the whole is in the shape of a large mouth and a small bottom (from Figure 4 , 5 From the perspective of the elevation / stereoscopic view, it means that the top is large and the bottom is small), and the b...

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Abstract

The invention discloses a drill with an open water hole and belongs to the technical field of drilling. The drill comprises a drill body, cutting structures, cutting teeth, chip grooves, an inner flow passage and the water hole, wherein the cutting structures are arranged on the drill body; the cutting teeth are formed in the cutting structures; the inner flow passage is arranged in the drill body; the chip grooves are formed between the cutting structures; the water hole is formed between the inner flow passage and the chip grooves, and the inner flow passage and the chip grooves are communicated via the water hole; only one water hole is provided, and the water hole is big in opening and small in bottom on the whole; the opening in the bottom of the water hole is directly communicated with the opening in the top of the inner flow passage; the area of the opening in the bottom of the water hole is consistent with or substantially equal to the opening in the top of the inner flow passage. In order to solve the problems that a conventional drill is shortened in service life and decreased in drilling performance due to unreasonable structure of a drill hydraulic structure in the rapid drilling and high-temperature drilling processes, the invention particularly provides the drill with the open water hole.

Description

technical field [0001] The invention belongs to the technical field of drilling. Background technique [0002] The drill bit is the main tool used to break the rock to form the wellbore in drilling engineering. The hydraulic structure of the drill bit is an important factor determining the drilling performance. When the drill bit breaks rock and drills, the drilling fluid is sprayed from the inner flow channel of the drill bit to the bottom of the well through the water hole of the drill bit to clean the bottom of the well, carry and transport the cuttings formed by the broken rock of the drill bit, cool and clean the cutting teeth and assist The role of rock breaking. In modern rapid drilling technology, the drill bit should not only have excellent rock breaking structure, but also have good hydraulic performance. Most of the water holes used in conventional drill bits are small circular holes, and they are all arranged in multiples. The overflowing flow formed by the dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/61
CPCE21B10/61
Inventor 况雨春王芳尹永清王勤秦超
Owner 成都海纳能源科技有限公司
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