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A wear-resistant pdc drill bit for drilling

A technology of drill bits and tools, applied in the field of PDC drill bits, can solve problems such as drill bit wear and tear, and achieve the effect of improving drilling efficiency and improving work efficiency

Active Publication Date: 2021-11-09
HAISHENG INDAL GENERAL CORP SHENGLI OIL FIELD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that, aiming at the defects in the prior art, it has the function of automatically changing the working mode, and breaks the rock formation when it encounters hard ground, and solves the unnecessary wear problem

Method used

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  • A wear-resistant pdc drill bit for drilling
  • A wear-resistant pdc drill bit for drilling
  • A wear-resistant pdc drill bit for drilling

Examples

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Embodiment

[0024] Example: Reference figure 1 The shown PDC drill bit with wear-resistant function for drilling includes a ventilation device 1 for cleaning and ventilating the drill bit as a whole, the lower end of the ventilation device 1 is provided with a conversion device 2 for changing the function of the drill bit, and the lower end of the conversion device 2 is provided with Drill bit device 3.

[0025] refer to figure 2 , image 3 , Figure 4 The shown ventilation device 1 includes an outer cylinder 101, a fixing plate 102 is arranged on the outer cylinder 101, a crushing disc 112 is slidably arranged on the upper end of the outer cylinder 101, and a rotating plate 103 is arranged inside the fixing plate 102, and the rotating plate 103 and the outer cylinder 101 are at the same time. Rotating, a ventilation fan 104 is arranged on the rotating plate 103, a fixed spline 109 is fixed at the middle end of the fixed plate 102, an upper end bevel gear 110 is arranged at the upper ...

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Abstract

The invention discloses a wear-resistant PDC drill bit for drilling, relates to the technical field of drilling bits, and includes a ventilation device for cleaning and ventilating the drill bit as a whole. When working, it rotates synchronously. The lower end of the ventilation device is provided with a conversion device for changing the function of the drill bit. The conversion device is provided with a cam, so that the present invention can be shocked when it encounters a rock formation during work. The lower end of the conversion device is provided with a drill device for drilling. , the drill bit device is provided with two drilling modes, which improves the drilling efficiency and reduces the wear of the drill bit. When drilling, the present invention performs drilling and grinding on different soil properties at different speeds, and realizes the function transformation according to the drilling and grinding speed. The setting of the end bit device reduces the degree of wear of the drill bit during the grinding process.

Description

technical field [0001] The invention relates to the technical field of drilling bits, in particular to a PDC drill bit with wear-resistant function for drilling. Background technique [0002] In the drilling process, the drill bit is the main tool for breaking the rock. The wellbore is formed by the drill bit breaking the rock. The quality of a wellbore formation and the length of time it takes are related to the characteristics of the formation rock being drilled and the performance of the drill bit itself. In addition, it is more related to the degree of mutual matching between the drill bit and the formation. The reasonable selection of the drill bit plays an important role in improving the drilling speed and reducing the comprehensive cost of drilling. The drill bit is one of the important tools for oil drilling work. Whether the drill bit is suitable for rock The nature of the drill bit and the quality of the drill bit play a very important role in the selection of dril...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/00E21B10/60E21B3/02E21B21/16
CPCE21B10/00E21B10/602E21B3/02E21B21/16
Inventor 韩增文蔡成镜张红鑫高汝维徐昌旭刘克兵
Owner HAISHENG INDAL GENERAL CORP SHENGLI OIL FIELD