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

Self-propelled drill hole repairing device and method

A self-advancing, in-drilling technology, which is used in wellbore drilling drives, drilling equipment, and earth-moving drilling, etc., can solve problems such as blockage, hole collapse, and impact on gas drainage efficiency.

Pending Publication Date: 2020-10-20
HENAN POLYTECHNIC UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-propelled borehole repair device and repair method, which uses high-pressure gas self-propelled borehole repair device and method to solve the problem of hole collapse and blockage affecting gas drainage efficiency during gas drainage

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
  • Self-propelled drill hole repairing device and method
  • Self-propelled drill hole repairing device and method
  • Self-propelled drill hole repairing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The head described in the text starts with figure 2 The right side of the center prevails, and the tail is figure 2 Center left.

[0029] As shown in the figure, a self-propelled drilling repair device includes a pressure air pipe 1 located in the downhole, and a hose 7 communicating with the pressure air pipe 1 through an adapter 4. The downhole pressure air pipe 1 is provided with Useful wind point flange 2, with a valve 3 on the wind point flange 2, the valve 3 is connected with the adapter 4, the hose 7 at the lower part of the adapter 4 is provided with a pressure gauge 5 and a flow rate 1, the other end of the hose 7 is connected to the tail of the percussion drill 9, the percussion drill 9 is located in the borehole to be repaired, the percussion drill 9 includes a chamber at the tail and a drill at the head , the center of the chamber is provided with an air passage 93 communicating with the hose 7, a check valve 92 is arranged in the air passage 93, and a v...

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 belongs to the technical field of drill hole repairing, and particularly discloses a self-propelled drill hole repairing device and method. The self-propelled drill hole repairing devicecomprises a pressure ventilation pipe located underground and a hose communicated with the pressure ventilation pipe through an adapter, the other end of the hose is connected with the tail of an impact drill bit, and the impact drill bit is located in a drill hole to be repaired; according to the working principle, low-pressure gas energy of an underground air supply pipe is transmitted to a piston through a drill bit, so that the piston reciprocates in an impact cavity to impact an impact rod with the drill bit, recoil is provided by airflow exhausted in the outlet direction of the drill hole, the drill bit automatically enters the drill hole, and coal cinder blocking the drill hole is impacted and crushed through reciprocating motion of the drill bit; and the discharged airflow discharges the coal cinder from the drill hole, and finally the repairing operation of the drill hole is achieved. According to the device, the low-pressure gas of the underground air supply pipe is efficiently utilized, the energy utilization efficiency is improved, and system equipment is simplified, so that the weight of the whole drill hole repairing device is greatly reduced, the labor amount of workers is reduced, the drill bit can automatically enter the drill hole, and operation is easy and convenient.

Description

technical field [0001] The invention belongs to the technical field of borehole repair, and in particular relates to a self-propelled borehole repair device and a repair method. Background technique [0002] In order to prevent gas accidents, it is necessary to drill the coal seam to be mined and carry out pre-extraction gas treatment. However, with the deepening of coal mine mining depth, affected by factors such as geological structural stress, gas pressure, mining disturbance, and coal strength, etc. Boreholes for gas extraction will collapse and be blocked, which will affect the efficiency of gas extraction. In order to ensure the efficiency of gas extraction, it is necessary to conduct secondary drilling or use drilling repair technology. Compared with secondary Secondary drilling is easier to operate and greatly improves the efficiency of gas drainage. The existing drilling repair technology uses high-pressure water or high-pressure gas as the punching power. For examp...

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
IPC IPC(8): E21B4/14E21B21/16E21B31/113E21B47/00E21B47/06
CPCE21B4/14E21B21/16E21B31/113E21B47/00E21B47/06
Inventor 刘勇魏建平刘笑天张宏图徐向宇王登科姚邦华
Owner HENAN POLYTECHNIC UNIV
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