Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A diamond drill bit for drilling into fractured hard rock formations

A diamond bit and diamond technology, applied in the direction of drill bits, drilling equipment, earthwork drilling, etc., can solve the problems of reducing the drilling efficiency and service life of the drill bit, aggravating the wear of the matrix and diamond, and affecting the drilling efficiency of the drill bit. Lightweight, effective rock breaking, ability-enhancing effect

Active Publication Date: 2022-05-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When drilling into fractured rock formations or hard and brittle formations, a large amount of coarse-grained rock powder will be formed. They cannot be taken away by the drilling fluid in time and quickly, which will cause a large amount of coarse-grained rock powder to be repeatedly broken on the working lip of the drill bit, which greatly intensifies the The wear of the matrix and diamond greatly reduces the drilling efficiency and service life of the drill bit, and increases the energy consumption of rock breaking
For the concentric round-toothed diamond drill bits commonly used in construction at present, the cutting tooth tops will be worn quickly and form a flat surface, which greatly affects the drilling efficiency of the drill bit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A diamond drill bit for drilling into fractured hard rock formations
  • A diamond drill bit for drilling into fractured hard rock formations
  • A diamond drill bit for drilling into fractured hard rock formations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Please refer to Figure 1 to Figure 3 , a diamond drill bit for drilling into fissures in hard rock formations of the present invention comprises a bit body 1 and a bit matrix arranged at the end of the bit body 1, the bit body 1 is in the shape of a circular tube, and the bit body 1 is away from the bit tire The inner wall at the end of the body is provided with a connecting thread for connecting a core pipe or a drill pipe.

[0019] The drill bit matrix includes a plurality of sectors, all sectors are equal in size, and all sectors are uniformly and fixedly connected to the end of the drill body 1 in the circumferential direction, all sectors are arranged at intervals, and the gap between adjacent sectors is The nozzles 4, all nozzles 4 have th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a diamond drill bit for drilling into fissures in hard rock formations, comprising a bit body and a bit matrix arranged at the end of the bit body, the bit matrix includes a plurality of fan-shaped blocks arranged around the bit body, adjacent The gap between the fan-shaped blocks is the nozzle. The fan-shaped blocks include a connecting layer and a bottom edge layer. The bottom edge layer includes a plurality of raised arc-shaped edges. All arc-shaped edges are arranged in a concentric circle structure. The arc-shaped edge includes a wear-resistant sheet and a diamond carcass, and the upper surfaces of all the wear-resistant sheets on the same fan-shaped block form an obliquely arranged wedge surface, and each of the diamond carcass is provided with an obliquely arranged reinforcing layer. A reinforcing layer is embedded within the diamond matrix. The diamond drill bit of the present invention can break medium-hard rock and above, can effectively improve the drilling efficiency and service life of the diamond drill bit, and contribute to reducing the cost of drilling engineering.

Description

technical field [0001] The invention relates to the technical field of geological drilling devices, in particular to a diamond drill bit for drilling into cracked hard rock formations. Background technique [0002] At present, in geological drilling, diamond-impregnated drill bits are generally used to drill into hard and very hard rocks. During the drilling process, the hardness, fissure or fragmentation of the rock will have a great impact on the performance of the diamond drill bit. When drilling into fractured rock formations or hard and brittle formations, a large amount of coarse-grained rock powder will be formed. They cannot be taken away by the drilling fluid in time and quickly, which will cause a large amount of coarse-grained rock powder to be repeatedly broken on the working lip of the drill bit, which greatly intensifies the The wear of the matrix and diamond greatly reduces the drilling efficiency and service life of the drill bit, and increases the energy co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/43E21B10/54E21B10/60
CPCE21B10/43E21B10/54E21B10/602
Inventor 段隆臣方小红赵小军谭松成契霍特金V.F.汤凤林
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com