Supercharge Your Innovation With Domain-Expert AI Agents!

A method for preparing oil well cement fluid loss reducer by post-crosslinking method

A technology of oil well cement and water loss reducing agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of affecting the use effect and poor shear resistance, so as to reduce water absorption, improve temperature resistance, Effect of improving shear resistance

Active Publication Date: 2017-09-01
内蒙古乌恩齐石油工程技术有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will be disadvantages of poor shear resistance and serious degradation of pumping machinery, which will affect the use effect

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

[0019] 1) aggregation

[0020] In a 3000L reactor, add 100Kg2-acrylamido-2-methylpropanesulfonic acid (AMPS), 70Kg divinylbenzene, 3Kg1-vinyl-3-ethylimidazole bistrifluoromethanesulfonylimide salt, 0.2Kg bis(tricarbonyl cyclopentadiene molybdenum), 2000Kg water, 2Kg polyvinyl alcohol, 1Kg benzoyl peroxide, react at 90°C for 7h, filter, and dry to obtain intermediate product 1,

[0021] 2) Post-processing

[0022] In a 1000L reactor, add 100Kg of intermediate product 1, swell in 300Kg of dichloroethane solvent, add 10Kg of zinc chloride; react at 90°C for 7 hours, add 5Kg of 4-fluorophenacyl bromide, and add 12Kg of ferric chloride , react at a temperature of 40°C for 10h, filter and dry to obtain the product number M-1.

Embodiment 2

[0024] 1) aggregation

[0025] In a 3000L reactor, add 100Kg2-acrylamido-2-methylpropanesulfonic acid (AMPS), 50Kg divinylbenzene, 1Kg1-vinyl-3-ethylimidazole bistrifluoromethanesulfonylimide salt, 0.1Kg bis(tricarbonyl cyclopentadiene molybdenum), 1000Kg water, 1Kg polyvinyl alcohol, 0.5Kg benzoyl peroxide, react at 80°C for 5h, filter, and dry to obtain intermediate product 1,

[0026] 2) Post-processing

[0027] In a 1000L reactor, add 100Kg of intermediate product 1, swell in 200Kg of dichloroethane solvent, add 5Kg of zinc chloride; react at 80°C for 5h, add 1Kg of 4-fluorophenacyl bromide, and add 5Kg of ferric chloride , react at a temperature of 20°C for 5h, filter and dry to obtain the product number M-2.

Embodiment 3

[0029] 1) aggregation

[0030] In a 3000L reactor, add 100Kg2-acrylamido-2-methylpropanesulfonic acid (AMPS), 100Kg divinylbenzene, 5Kg1-vinyl-3-ethylimidazole bistrifluoromethanesulfonimide salt, 0.5Kg bis(tricarbonyl cyclopentadiene molybdenum), 3000Kg water, 4Kg polyvinyl alcohol, 2Kg benzoyl peroxide, react at 95°C for 12h, filter, and dry to obtain intermediate product 1,

[0031] 2) Post-processing

[0032] In a 1000L reactor, add 100Kg of intermediate product 1, swell in 500Kg of dichloroethane solvent, add 20Kg of zinc chloride; react at 120°C for 10 hours, add 10Kg of 4-fluorophenacyl bromide, and add 20Kg of ferric chloride , react at a temperature of 50°C for 15h, filter and dry to obtain the product number M-3.

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 relates to a post-crosslinking method for preparation of an oil well cement fluid loss additive. 2-acrylamido-2-methyl propyl sulfonic acid (AMPS), divinylbenzene, 1-ethyl-3-ethyl imidazole bis(trifluoromethane sulfonimide) salt and hexacarbonylbis(eta5-cyclopenta-2,4-dien-1-yl)dimolybdenum are subjected to polymerization; dangling bond of divinylbenzene is further subjected to post-crosslinking reaction; and acylation is conducted to obtain a product.

Description

technical field [0001] The invention relates to a preparation method of an oil well additive, in particular to a method for preparing an oil well cement fluid loss reducer by a post-crosslinking method. Background technique [0002] Oil well cement fluid loss reducer is a composite material composed of high molecular polymers, which are adsorbed on the surface of cement particles in the cement slurry and cross-linked with each other to form a cross-linked network throughout the entire cement slurry system. When there is a certain pressure difference between them, a dense polymer material protective film is formed at the interface to ensure that the cement slurry has low fluid loss. This product can effectively reduce the water loss of oil well cement slurry, and improve its fluidity, leakage prevention, and gas channeling prevention capabilities, ensuring high-quality cementing requirements. [0003] CN101698794A relates to a high-temperature-resistant and salt-resistant oi...

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): C08F220/58C08F212/36C08F226/06C08F8/18C09K8/487
CPCC08F8/18C08F220/58C08F220/585C09K8/487C08F212/36C08F226/06
Inventor 王琪宇
Owner 内蒙古乌恩齐石油工程技术有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com