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

A kind of surface active functional polymer and its preparation method and application

A functional polymer and surface active technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., to achieve enhanced oil recovery, good cationic precipitation resistance and temperature resistance, and solve the problem of temperature resistance and resistance to high inorganic prices The effect of poor cationic performance

Active Publication Date: 2017-12-19
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings that the current polymers used in medium and low permeability reservoirs cannot have good surface activity, thickening water medium ability and temperature resistance and salt resistance, and provide a kind of polymer with good surface activity, thickening and anti-salt ability A polymer with surface active function capable of water medium and temperature resistance and salt resistance, a preparation method of the polymer with surface active function, a polymer with surface active function prepared by the method, and the polymer with surface active function Application as an oil displacing agent

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 kind of surface active functional polymer and its preparation method and application
  • A kind of surface active functional polymer and its preparation method and application
  • A kind of surface active functional polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 0.25g structure monomer YD-1 (Shanghai Boyihe chemical industry) as water-soluble surface active monomer, 19.75g propylene as shown in formula (13) Amide, 5.0g of 2-acrylamido-2-methylpropanesulfonic acid and distilled water, based on the total content of monomer and distilled water, the total content of monomer is 10% by weight, fully stirred to the The solution turned into a clear solution. Then add 25 mg of auxiliary agent urea, 75 mg of disodium edetate, 1 mL of ammonia water and 10 mg of isopropanol, and at the same time adjust the pH value of the system to 6 with sodium hydroxide, and feed high-purity nitrogen with a volume concentration of 99.99% for 30 minutes. Oxygen was removed from the polymerization flask. Then add 20 mg of ammonium persulfate and 10 mg of sodium bisulfite in sequence, continue to pass high-purity nitrogen gas for 10 minu...

Embodiment 2

[0071] Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 0.1875g structure monomer YD-1 (Shanghai Boyihe chemical industry) as the water-soluble surface active monomer, 24.1875g propylene shown in formula (13) Amide, 13.125g of 2-acrylamido-2-methylpropanesulfonic acid and distilled water, based on the total content of monomer and distilled water, the total content of monomer is 15% by weight, fully stirred to the The solution turned into a clear solution. Then add 25 mg of auxiliary agent urea, 75 mg of disodium edetate, 1 mL of ammonia water and 10 mg of isopropanol, and at the same time adjust the pH value of the system to 7 with sodium hydroxide, and feed high-purity nitrogen with a volume concentration of 99.99% for 30 minutes. Oxygen was removed from the polymerization flask. Then add 20mg of ammonium persulfate and 10mg of sodium bisulfite successively, and continue to pass high-purity nitrogen gas ...

Embodiment 3

[0075] Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 0.25g structure monomer YD-2 (Shanghai Boyihe chemical industry) as water-soluble surface active monomer, 34.75g propylene as shown in formula (14) Amide, 15 g of 2-acrylamido-2-methylpropanesulfonic acid and distilled water, based on the total content of monomers and distilled water, the total content of monomers is 20% by weight, fully stirred into the solution in the polymerization reaction bottle turned into a clear solution. Then add 50mg of auxiliary agent urea, 100mg of disodium ethylenediaminetetraacetic acid, 1mL of ammonia water and 5mg of N,N-methylenebisacrylamide, and at the same time adjust the pH value of the system to 8.0 with sodium hydroxide. High-purity nitrogen for 30 minutes to remove oxygen from the polymerization flask. Then add 15mg of ammonium persulfate and 10mg of sodium bisulfite successively, and continue to pass high-pur...

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
surface tensionaaaaaaaaaa
shear viscosityaaaaaaaaaa
shear viscosityaaaaaaaaaa
Login to View More

Abstract

The invention provides a polymer with surface active function and its preparation method and application. The polymer with surface active function contains structural unit A, structural unit B and structural unit C, wherein structural unit A is represented by formula (1) The structural unit shown, structural unit B is the structural unit shown in formula (2), and structural unit C is the structural unit shown in formula (3); Based on the weight of the polymer, the content of structural unit A is 59 -79% by weight, the content of structural unit B is 20-40% by weight, the content of structural unit C is 0.1-1% by weight, and the viscosity-average molecular weight of the polymer is 5 million-15 million; the surface-active functional polymer has With good surface activity, high apparent viscosity and good temperature and salt resistance properties, this type of oil displacement agent is suitable for medium and low permeability reservoirs, high temperature reservoirs and high temperature and high salt reservoirs, and can further increase crude oil in tertiary oil recovery. recovery factor.

Description

technical field [0001] The present invention relates to a polymer with surface active function, a preparation method of the polymer with surface active function, a polymer with surface active function prepared by the method, and the polymer with surface active function as an oil displacement agent application. Background technique [0002] Exploration data in recent years show that medium and low permeability reservoirs have become an important field of oilfield exploration and development in my country. For example, in Jiangsu Oilfield, medium and low permeability reserves have reached 65% of the discovered reserves. Daqing Oilfield carried out polymer flooding in medium and low permeability reservoirs in the Sabei area, and achieved a good effect of increasing oil production and reducing water loss. With the improvement of the degree of exploration and the increasing demand for oil resources, no matter from the analysis of remaining oil resources or development trends, me...

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): C08F220/56C08F220/58C08F220/36C09K8/588
Inventor 王晓春赵方园高文骥于芳杨捷
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