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

Petroleum drill pipe wear-resistant surface treatment method

A technology for oil drill pipe and surface treatment, which is applied to the device for coating liquid on the surface, special surface, pretreatment surface, etc. It can solve the problem of not meeting the working requirements of oil drill pipe, and ensure the permeability of anti-corrosion medium. And corrosive medium destructive, good lubricating performance, excellent wear resistance effect

Inactive Publication Date: 2020-07-31
安徽宝立华机械设备有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to prevent the oil drill pipe from being severely damaged during the drilling process, people use coatings to treat the surface of the oil drill pipe to prolong the service life of the drill pipe, but it still cannot reach the strong torque and The work requirements under the erosion of sand and gravel need to be solved urgently

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for treating the wear-resistant surface of an oil drill pipe, comprising the steps of:

[0024] S1. Add 5kg of nano-kaolin to the grinder, add 5kg of graphene, 0.2kg of water, and grind for 15 minutes. During the grinding process, the temperature is maintained at 120°C, the grinding speed is 15000r / min, the grinding pressure is 2.5MPa, and then water is added to stir uniform, and then spray-dried to obtain prefabricated material a;

[0025] S2. Send 60kg of novolac epoxy resin, 10kg of xylene, and 12kg of 1,4-butanediol diglycidyl ether into the reactor, stir at 90°C for 20min at a stirring speed of 60r / min, cool down to 50°C, and stir Add 10kg of prefabricated material a, 2kg of talcum powder, 1kg of titanium dioxide, and 2kg of defoamer, and mix evenly to obtain prefabricated material b;

[0026] S3. Grinding the surface of the oil drill pipe to remove solid impurities on the surface, and then successively degreasing and washing with water to obtain the pret...

Embodiment 2

[0029] A method for treating the wear-resistant surface of an oil drill pipe, comprising the steps of:

[0030] S1. Add 15kg of nano-kaolin to the grinder, add 2kg of graphene and 3kg of water, and grind for 5 minutes. During the grinding process, the temperature is maintained at 140°C, the grinding speed is 12000r / min, and the grinding pressure is 4MPa. Add water and stir evenly. Then spray drying to obtain preform a;

[0031] S2. Send 40kg of novolac epoxy resin, 15kg of xylene, and 5kg of 1,4-butanediol diglycidyl ether into the reactor, stir at 96°C for 10min at a stirring speed of 100r / min, cool down to 40°C, and stir Add 12kg of prefabricated material a, 1kg of talc powder, 2kg of titanium dioxide, and 1kg of defoamer, and mix evenly to obtain prefabricated material b;

[0032] S3. Grinding the surface of the oil drill pipe to remove solid impurities on the surface, and then successively degreasing and washing with water to obtain the pretreated oil drill pipe;

[0033...

Embodiment 3

[0035] A method for treating the wear-resistant surface of an oil drill pipe, comprising the steps of:

[0036] S1. Add 8kg of nano-kaolin to the grinder, add 4kg of graphene and 1kg of water, and grind for 12 minutes. During the grinding process, the temperature is maintained at 125°C, the grinding speed is 14000r / min, and the grinding pressure is 3MPa. Add water and stir evenly. Then spray drying to obtain preform a;

[0037] S2. Send 55kg of novolac epoxy resin, 12kg of xylene, and 10kg of 1,4-butanediol diglycidyl ether into the reactor, stir at 92°C for 18min at a stirring speed of 70r / min, cool down to 47°C, and stir Add 10.5kg of prefabricated material a, 1.7kg of talc powder, 1.4kg of titanium dioxide, and 1.8kg of defoamer, and mix evenly to obtain prefabricated material b;

[0038] S3. Grinding the surface of the oil drill pipe to remove solid impurities on the surface, and then successively degreasing and washing with water to obtain the pretreated oil drill pipe; ...

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 discloses a petroleum drill pipe wear-resistant surface treatment method. The method comprises the steps that nano-kaolin, graphene and water are ground for 5-15min, temperature is maintained at 120-140 DEG C and grinding pressure is 2.5-4MPa in the grinding process, then water is added for uniform stirring, and then spray-drying is performed to obtain a premade material a; novolac epoxy, xylene and 1,4-butanediol diglycidyl ether are stirred and cooled, the premade material a, talcum powder, titanium dioxide and a defoaming agent are added in a stirring state, and a premade material b is obtained after uniform mixing; and a polyether amine curing agent 1784 is added into xylene for uniform stirring, then the premade material b is added for uniform mixing, then the mixture issprayed on a pretreated petroleum drill pipe surface, then curing is performed under the temperature of 110-116 DEG C for 10-20min, the temperature is raised to 160-170 DEG C, curing is continued for10-20min, and a petroleum drill pipe subjected to wear-resistant surface treatment is obtained after cooling.

Description

technical field [0001] The invention relates to the technical field of petroleum drill pipes, in particular to a method for treating the wear-resistant surface of petroleum drill pipes. Background technique [0002] Oil drill pipe is the main tool used to transmit power and transport mud, and its role is particularly important. Petroleum drill pipes are often under alternating stress and work under harsh conditions of friction and collision with the well wall. They often become the weakest link in the entire drilling equipment and tools, and the phenomenon of crack development to perforation or complete fracture occurs from time to time. [0003] In order to prevent the oil drill pipe from being severely damaged during the drilling process, people use coatings to treat the surface of the oil drill pipe to prolong the service life of the drill pipe, but it is still not up to the strong torque and The work requirements under the erosion of sand and gravel need to be resolved ...

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): B05D5/08B05D3/02C09D163/04C09D7/61C08G59/50
CPCB05D3/0254B05D5/08B05D2320/00B05D2504/00C08G59/5006C08K2003/2241C08K2201/011C09D7/61C09D163/04C08K13/02C08K3/346C08K3/042C08K3/34C08K3/22
Inventor 石春炳
Owner 安徽宝立华机械设备有限公司
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