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

A titanium alloy drill pipe joint wear-resistant band welding structure and method

A drill pipe joint and titanium alloy technology, applied in drill pipe, drill pipe, earthwork drilling, etc., can solve the problems of wear and failure of titanium alloy drill pipe joints, and achieve reliable bonding strength, avoid wear failure, and excellent wear resistance. Effect

Active Publication Date: 2022-03-29
BC P INC CHINA NAT PETROLEUM CORP +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of fixing the titanium alloy drill pipe joint and the wear-resistant band in the above-mentioned prior art, and provide a titanium alloy drill pipe joint wear-resistant band welding structure and method, so that the wear-resistant band layer can be effectively fixed on the On the drill pipe joint, so as to add a layer of wear-resistant material on the surface of the titanium alloy drill pipe joint, avoid the wear failure of the titanium alloy drill pipe joint caused by the wear of the drill pipe joint, and improve the service life of the titanium alloy drill pipe joint. Thereby improving the cost performance of titanium alloy drill pipe

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 titanium alloy drill pipe joint wear-resistant band welding structure and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] The material for titanium alloy drill pipe joint body 1 is TC4, its main material composition is Ti-6Al-4V, the outer diameter of the joint is 127mm, and the length of the joint is 279.4mm; the intermediate medium layer 2 is nickel-based alloy; the wear-resistant material layer 3 For high chromium alloy.

[0030] Concrete welding method of the present invention is as follows:

[0031] First, a ring groove with a width of 76 mm and a depth of 1.2 mm is machined on the surface of the drill pipe joint body 1 made of titanium alloy, and nickel-based alloy powder is covered on the surface of the groove. Using a laser beam, melt the nickel-based alloy powder and the material of the surface layer of the titanium alloy joint at 1680°C, cool slowly to 930°C and then hold for 0.5h, then furnace cool to 600°C for 1h and then air cool.

[0032] After testing, the intermediate dense layer 4 formed after melting the nickel-based alloy powder has no cracks and has a thickness of 1.1 ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

A titanium alloy drill pipe joint wear-resistant belt welding structure and method, the welding structure includes an intermediate medium layer covering the titanium alloy drill pipe joint body, and the intermediate medium layer is melted on the titanium alloy drill pipe joint body after high temperature A dense protective layer is formed on the surface, and a wear-resistant material layer is welded on the dense protective layer to form a wear-resistant belt. The material of the intermediate medium layer melts with the titanium alloy of the drill pipe joint at high temperature to form a dense protective layer. The dense protective layer not only has a strong bonding force with the body of the titanium alloy drill pipe joint, but also can be combined with the existing steel The wear-resistant band material of the drill pipe joint is effectively fused, and the wear-resistant material layer has sufficient hardness and thickness, and has excellent wear resistance. The invention realizes adding a wear-resistant material layer on the surface of the titanium alloy drill pipe joint, avoids the wear failure problem of the titanium alloy drill pipe joint caused by friction and wear, improves the service life of the titanium alloy drill pipe joint, and thus improves the durability of the titanium alloy drill pipe cost-effective.

Description

technical field [0001] The invention belongs to the field of drill pipes, and in particular relates to a titanium alloy drill pipe joint wear-resistant band welding structure and method. Background technique [0002] The titanium alloy drill pipe used in oil and gas exploration and development has the characteristics of corrosion resistance, low density, high strength and good elasticity. It is used in the development of highly acidic oil and gas reservoirs, as well as the drilling operations of ultra-deep wells and ultra-short horizontal wells. [0003] At the same time, the titanium alloy drill pipe material has strong oxidation resistance and poor wear resistance. The wear-resistant band material of the conventional steel drill pipe cannot be directly fused with the titanium alloy material, and the titanium alloy is a precious metal. The material cost of steel drill pipe is about 25 times that of steel drill pipe, much higher than that of steel drill pipe. Without the pr...

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): E21B17/04C23C24/10
CPCE21B17/04C23C24/103
Inventor 刘永刚冯春刘强
Owner BC P INC CHINA NAT PETROLEUM CORP
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