Check patentability & draft patents in minutes with Patsnap Eureka AI!

Gel microsphere system and preparation method thereof, gel microsphere dispersion system and gel microsphere reinforced polymer flooding system

A technology of dispersion system and polymer, applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of ineffective plugging and profile control, poor elasticity and deformability of microspheres, and achieve easy large-scale industrialization Production, mild conditions, enhanced oil recovery effects

Active Publication Date: 2017-01-04
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a jelly microsphere system, so as to solve the problem that the existing cross-linked polymer microspheres have poor elasticity and deformability, and cannot effectively plug and profile control

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
  • Gel microsphere system and preparation method thereof, gel microsphere dispersion system and gel microsphere reinforced polymer flooding system
  • Gel microsphere system and preparation method thereof, gel microsphere dispersion system and gel microsphere reinforced polymer flooding system
  • Gel microsphere system and preparation method thereof, gel microsphere dispersion system and gel microsphere reinforced polymer flooding system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The jelly microsphere system of this example is mainly prepared by emulsion polymerization of the following raw materials in mass percentages under the conditions of ultraviolet light triggering and thermal triggering: 5% water-soluble anionic monomer, 35% acrylamide, dispersed 15% agent, 1% crosslinking agent, 10% water, 22% surfactant, 10% oily solvent, 0.85% photoinitiator, 1.15% potassium persulfate; the water-soluble anionic monomer is acrylic acid, and the dispersant is A mixture of N-vinylpyrrolidone and polyvinylpyrrolidone at a mass ratio of 1:1, the crosslinking agent is N,N-methylenebisacrylamide, the surfactant is sodium dodecylsulfonate, and the oily solvent is Rapeseed oil, the photoinitiator is phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide.

[0038] The preparation method of the jelly microsphere system of the present embodiment may further comprise the steps:

[0039]1) Preparation of water phase system: add water-soluble anionic monomer, dispersant,...

Embodiment 2

[0046] The jelly microsphere system of this example is mainly prepared by emulsion polymerization of the following raw materials in mass percentages under the conditions of ultraviolet light triggering and thermal triggering: 15% water-soluble anionic monomer, 15% acrylamide, dispersed 1%, crosslinking agent 0.07%, water 30%, surfactant 15.7%, oily solvent 20%, photoinitiator 0.23%, ammonium persulfate 3%; Described water-soluble anion monomer is acrylic acid and acrylic acid hydroxybutyl A mixture of esters at a ratio of 1:1, the dispersant is N-vinylpyrrolidone, the crosslinking agent is diallyldimethylammonium chloride, the surfactant is cetyltrimethylammonium bromide, and the oily solvent It is industrial white oil, and the photoinitiator is 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholino)-1-propanone.

[0047] The preparation method of the jelly microsphere system of the present embodiment may further comprise the steps:

[0048] 1) Preparation of water phase system: a...

Embodiment 3

[0055] The jelly microsphere system of this example is mainly prepared by emulsion polymerization of the following raw materials in mass percentages under the conditions of ultraviolet light initiation and thermal initiation: 8% water-soluble anionic monomer, 16% acrylamide, dispersed 7% agent, 0.5% crosslinking agent, 30% water, 20% surfactant, 17% oily solvent, 0.14% photoinitiator, 1.36% potassium persulfate; the water-soluble anionic monomer is methacrylic acid and acrylic acid A mixture of hydroxybutyl esters at a ratio of 6:4, a dispersant of polyvinylpyrrolidone, and a crosslinking agent of N,N-methylenebisacrylamide and diallyldimethylammonium chloride at a mass ratio of 1:1 Composed mixture, the surfactant is a mixture of sodium dodecylsulfonate and cetyltrimethylammonium bromide in a mass ratio of 1:1, the oily solvent is heat conduction oil, and the photoinitiator is 1-hydroxyl A mixture of cyclohexyl phenyl ketone and 2-hydroxy-2-methyl-1-phenyl-1-propanone accordi...

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a gel microsphere system and a preparation method thereof, a gel microsphere dispersion system and a gel microsphere reinforced polymer flooding system. The gel microsphere system is mainly prepared from the following raw materials in parts by mass through emulsion polymerization under the conditions of ultraviolet initiation and thermal initiation: 5-15% of a water-soluble anionic monomer, 15-35% of acrylamide, 1-15% of a dispersing agent, 0.07-1.05% of a crosslinking agent, 10-25% of a surfactant, 10-20% of an oily solvent, 0.14-0.85% of a photoinitiator, 1-3% of a thermal initiator and 10-30% of water. The gel microsphere reinforced polymer flooding system is a double-dispersion system, wherein the gel microspheres can block the dominant pathway of stratum to realize an effect of turning liquid flow and reduce polymer cross flow; meanwhile, by virtue of the carrying effect of the polymer dispersion system, the gel microspheres can be moved deep into the stratum to realize an effect of deep profile control.

Description

technical field [0001] The invention belongs to the technical field of oilfield polymer flooding and tertiary oil recovery technology to enhance crude oil recovery, and specifically relates to a jelly microsphere system and a preparation method thereof, a jelly microsphere dispersion system, and a jelly microsphere enhanced polymer flooding system. Background technique [0002] As a non-renewable resource, petroleum plays an important role in the economic development of the country. With the deepening of exploration and development, the difficulty of mining will gradually increase. Therefore, enhancing oil recovery is an eternal theme in the process of oilfield development, which runs through the whole process of oilfield development. So far, two enhanced oil recovery technologies have been developed, that is, the secondary oil recovery technology (including profile control technology and water shutoff technology) that can improve the effect of water flooding development, an...

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
IPC IPC(8): C08F220/56C08F220/06C08F222/38C08F220/28C08F226/02C08F2/48C08F2/26C08F2/28C09K8/588
CPCC08F2/26C08F2/28C08F2/48C08F220/56C09K8/588C08F220/06C08F220/281C08F226/02C08F222/385
Inventor 郭艳温鸿滨黎锡瑜薛国勤肖磊张连锋宋岱峰徐鹿敏郝明耀束华东孙林涛林杨
Owner CHINA PETROLEUM & CHEM CORP
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