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

Composite coating and composition for soluble sliding sleeve ball seat

A composite coating and bottom layer technology, applied in coatings, anti-corrosion coatings, wellbore/well valve devices, etc., to achieve excellent corrosion resistance and erosion resistance

Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coatings or composite coatings in the prior art cannot meet the requirements of both corrosion resistance and erosion resistance and are destroyed under a certain strength so as to realize the dissolution of the ball seat

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

[0026] Preparation of modified polytetrafluoroethylene: put the polytetrafluoroethylene powder in H with a mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, stir it with ultrasonic at the frequency of 40KHz for 2 hours at the same time, and filter out the micro powder to obtain modified polytetrafluoroethylene.

[0027] Preparation of modified peek: put peek micro powder in H with mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, the micro powder was filtered out by ultrasonic stirring at the frequency of 40KHz for 2 hours to obtain modified peek.

[0028]The composite coating of soluble sliding sleeve ball seat is micro arc oxidation bottom layer, WC Co wear-resistant layer and anti-corrosion layer from inside to outside. Among them, the micro arc oxidation bottom layer is prepared in sodium silicate electrolyte, using constant voltage mode, voltage 500V and oxidation time 28min; The wear-resistant coating is obtained by mixing the hard particle WC with a median...

Embodiment 2

[0030] Preparation of modified polytetrafluoroethylene: put the polytetrafluoroethylene powder in H with a mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, stir it simultaneously with ultrasonic at the frequency of 80kHz for 1.5 hours, and filter out the micro powder to obtain modified polytetrafluoroethylene.

[0031] Preparation of modified peek: put peek micro powder in H with mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, the micro powder was filtered out by ultrasonic stirring at the frequency of 80kHz for 1.5 hours to obtain modified peek.

[0032] The composite coating of soluble sliding sleeve ball seat is composed of micro arc oxidation bottom layer, tic co wear-resistant layer and modified polytetrafluoroethylene anti-corrosion layer from inside to outside. Among them, the micro arc oxidation bottom layer was prepared in sodium hexametaphosphate electrolyte, using constant voltage mode, voltage 540V and oxidation time 32min; The wear-resistant coati...

Embodiment 3

[0034] Preparation of modified polytetrafluoroethylene: put the polytetrafluoroethylene powder in H with a mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, stir it with ultrasonic at the frequency of 60KHZ for 2 hours at the same time, and filter out the micro powder to obtain modified polytetrafluoroethylene.

[0035] Preparation of modified peek: put peek micro powder in H with mass ratio of 5:1 2 SiO 4 And SIF 4 In the mixed solution, the micro powder was filtered out by ultrasonic stirring at the frequency of 60KHZ for 2 hours to obtain modified peek.

[0036] The composite coating of soluble sliding sleeve ball seat is composed of micro arc oxidation bottom layer, SiC Ni wear-resistant layer and modified polytetrafluoroethylene anti-corrosion layer from inside to outside. Among them, the micro arc oxidation bottom layer is prepared in sodium hydroxide electrolyte, using constant voltage mode, voltage 600V and oxidation time 30min; The wear-resistant coating is obtai...

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
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a composite coating suitable for a soluble sliding sleeve ball seat. The composite coating sequentially comprises a micro-arc oxidation bottom layer, a wear-resistant layer and an anti-corrosion layer from inside to outside.

Description

technical field [0001] The invention provides a composite coating and composition, in particular to a composite coating and composition which can be used for a soluble sliding sleeve ball seat. Background technology [0002] The multi-stage sliding sleeve staged fracturing technology of horizontal wells is an effective technical means to increase the production of tight and low-permeability reservoirs. After the fracturing construction, the conventional sliding sleeve needs to be drilled into the pipe string to achieve the full bore in the pipe, while the soluble sliding sleeve ball seat matrix adopts soluble metal materials, which can be completely dissolved in the formation water environment after fracturing, and the full bore in the pipe can be achieved without additional operation. The construction efficiency is high, safe and economical. In order to ensure the reliability of the soluble sliding sleeve ball seat in the downhole environment, the soluble sliding sleeve ball sea...

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): C09D5/08C09D127/22C09D161/16C09D7/61C09D1/00E21B34/14B05D7/00B05D1/02
CPCC09D5/08C09D127/22C09D7/61C09D1/00B05D1/02B05D7/56E21B34/14C08K2003/2227C08L61/16C08K3/22
Inventor 侯乃贺朱和明赵向阳谷磊赵晨熙赵建军
Owner CHINA PETROLEUM & CHEM 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