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

Non-excavation drilling rod with thread protecting structure

A thread protection, non-excavation technology, applied in the direction of drill pipe, drill pipe, drilling equipment, etc., can solve the problems of poor sealing, thread breakage, poor practicability, etc., achieve improved torque resistance, save manufacturing and maintenance costs, and save resource effect

Inactive Publication Date: 2017-03-29
扬州黎明钻具有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stress at the thread root of the drill pipe joint with this structure is seriously concentrated, which can easily cause thread breakage, leading to joint failure, deformation, and premature scrapping. poor sex

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
  • Non-excavation drilling rod with thread protecting structure
  • Non-excavation drilling rod with thread protecting structure
  • Non-excavation drilling rod with thread protecting structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing:

[0017] Such as Figure 1-4 As shown, the non-excavation drill pipe with thread protection structure includes a shaft 3, a drill pipe inner cavity 4 arranged inside the shaft 3, a male joint 6 arranged at the head of the shaft 3 and a tail end of the shaft 3 The outer circle of the male joint 6 is provided with a male joint outer circular groove 5, and the outer circle corresponding to the female joint 1 is provided with a female joint outer circular groove 2, and the outer circle of the male joint 5 and the outer circle of the female joint The circular groove 2 is provided with a thread protection device 7, and the thread protection device 7 is composed of an upper retainer 7-1, a lower retainer 7-2 and a connecting bolt 7-4, and the upper retainer 7-1 and the lower retainer 7- The inner surfaces of 2 are provided with guards 7-5, and the guards 7-5 are respectively engage...

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 non-excavation drilling rod with a thread protecting structure, and belongs to the technical field of drilling tools. The non-excavation drilling rod with the thread protecting structure comprises a rod body, a drilling rod inner cavity, a male joint and a female joint, wherein the drilling rod inner cavity is formed in the rod body; the male joint is arranged on the head of the rod body; the female joint is arranged at the tail of the rod body; a male joint excircle slot is formed in the excircle of on side of the male joint, and a female joint excircle slot is formed in the excircle of the male joint, to which the female joint corresponds; thread protecting devices are arranged on the male joint excircle slot and the female joint excircle slot; each thread protecting device comprises an upper protecting ring, a lower protecting ring and a connecting joint; and protecting teeth are arranged on the inner surfaces of the upper protecting ring and the lower protecting ring and are connected to the male joint excircle slot and the female joint excircle slot in a clamping manner. The non-excavation drilling rod with the thread protecting structure is novel in structure and is clear in operating principle. Compared with a traditional drilling rod structure, the non-excavation drilling rod with the thread protecting structure has the advantages that the connecting part of the drilling rod has a protecting effect, the damage coefficient of the drilling rod is reduced, the manufacturing cost and maintenance cost of the drilling rod are saved, resources are saved, and meanwhile, the anti-torque property of the drilling rod is substantially increased, thereby meeting the requirements of large-bearing occasions on the use property.

Description

technical field [0001] The invention belongs to the technical field of drilling tools, and relates to a non-excavation drilling rod, in particular to a non-excavation drilling rod with a thread protection structure. Background technique [0002] The drill pipe is a steel pipe with thread on the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole at the bottom of the drilling well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and together with the drill bit to raise, lower or rotate the bottom hole device. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. Drill pipe joint is an important part to realize the connection of drill pipe, its working condition is very harsh, and its stress situation is very complicated. During the normal rotary drilling process, the joints are subject to various static and dyna...

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 Applications(China)
IPC IPC(8): E21B17/042E21B17/046
CPCE21B17/042E21B17/046
Inventor 王超
Owner 扬州黎明钻具有限公司
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