A kind of amphiphilic polymer containing capped polyether structure and its preparation and application

An amphiphilic polymer and end-capped polyether technology, which is applied in the petrochemical field, can solve the problems of decreased application performance of oil displacing agent, unsatisfactory oil displacing effect, etc. The effect of long-term stable coalescence

Active Publication Date: 2022-02-01
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the field application results show that the adsorption loss of the surfactant and the chromatographic separation between the surfactant and the polymer lead to a decline in the application performance of the oil displacement agent and an unsatisfactory oil displacement 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of amphiphilic polymer containing capped polyether structure and its preparation and application
  • A kind of amphiphilic polymer containing capped polyether structure and its preparation and application
  • A kind of amphiphilic polymer containing capped polyether structure and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides an amphiphilic polymer containing a capped polyether structure, which is prepared through the following steps:

[0036] Weigh 37.4g of monomer A (acrylamide), 0.85g of benzenesulfonate monomer B (R 2 is H, m=10), 2.9g end-capped polyether monomer C (R 3 for H, R 4 for CH 3 , n is 58) in a dissolver, add 138.1g of deionized water and stir to dissolve, then add 5.39g of sodium carbonate and stir to dissolve, adjust the temperature to 13°C, transfer the solution to the reactor, add 3.8g of ethylenediaminetetraacetic acid Disodium solution (concentration is 3.0%), 1.69g sodium formate solution (concentration is 6%), 6.34g sodium bisulfite solution (concentration is 1.5%) and other polymerization aids, feed nitrogen after 30min, add 5.39g persulfuric acid Potassium solution (concentration is 0.7%), 3.2g of 2,2-azobisisobutylamidine dihydrochloride solution (concentration is 0.25%), seal reactor after continuing to pass nitrogen for 10min, after 4h...

Embodiment 2

[0039] This embodiment provides an amphiphilic polymer containing a capped polyether structure, the preparation steps are the same as in Example 1, and the type and amount of raw materials are: 36.2g monomer A (R 1 for NH 2 , ie acrylamide), 1.3g benzenesulfonate monomer B (R 2 for CH 3 , m=12), 4.6g capped polyether monomer C (R 3 for H, R 4 for CH 3 , n is 46), 136g deionized water, 3.9g sodium carbonate, 0.37g sodium lauryl sulfate, 4.22g edetate disodium solution (concentration is 3.0%), 2.35g sodium hypophosphite solution (concentration 6%), 6.3g sodium bisulfite solution (concentration is 1.5%), 5.9g potassium persulfate solution (concentration is 0.7%), 3.9g of 2,2-azobisisobutylamidine dihydrochloride solution (0.25% concentration). The obtained polymer gel was taken out, and after granulation, drying, crushing and sieving, an amphiphilic polymer containing a capped polyether structure was obtained, and the molecular weight of the finally obtained polymer was 9.6...

Embodiment 3

[0041] This example provides an amphiphilic polymer containing a capped polyether structure, using sodium acrylate instead of acrylamide and sodium carbonate, and other steps are the same as in Example 1. The raw material formula is as follows: 28.5g monomer A (R 1 is ONa, i.e. sodium acrylate), 2.2g benzenesulfonate monomer B (R 2 Is H, m=11), 6.2g capped polyether monomer C (R 3 for H, R 4 for C 6 h 6 , n is 38), 135.2g deionized water, 0.97g sodium lauryl sulfate, 4.26g disodium edetate solution (concentration is 3.0%), 2.8g sodium formate solution (concentration is 6%), 7.5 g sodium bisulfite solution (concentration is 1.5%), 6.2 g potassium persulfate solution (concentration is 0.7%), 3.3 g of 2,2-azobisisobutylamidine dihydrochloride solution (concentration is 0.25%) ). The obtained polymer gel is taken out, and after granulation, drying, crushing and sieving, an amphiphilic polymer containing a capped polyether structure can be obtained, and the molecular weight o...

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
viscosityaaaaaaaaaa
Login to view more

Abstract

The invention provides an amphiphilic polymer containing a capped polyether structure and its preparation and application. The molecular structure of the amphiphilic polymer is shown in formula (1). The mass percent of each structural unit of the polymer is x=12.0%-98.0%, y=0.2%-32.0%, z=0.4%-59.0%, and x+y+z=100%. The amphiphilic polymer of the invention is formed by polymerizing benzenesulfonate-type anionic monomers, capped polyether-type non-ionic monomers, acrylamide or acrylate monomers and the like. The polymer of the present invention has high interfacial activity, can be strongly adsorbed on the oil-water two-phase interface to disperse crude oil and reduce viscosity, and can be used in technical fields such as chemical flooding, heavy oil viscosity reduction, sewage treatment and oil sludge cleaning.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular, the invention relates to an amphiphilic polymer containing a capped polyether structure and its preparation and application. Background technique [0002] Heavy oil is an important unconventional energy source, which is of great significance to ensuring my country's energy security. Heavy oil has the characteristics of high density, high colloidal asphaltene content, high viscosity and poor fluidity. The recovery methods of heavy oil are mainly thermal recovery technologies such as steam huff and puff, steam flooding and SAGD, and water flooding technologies. Thermal recovery technology needs to consume a lot of resources and heat energy, and the development cost is high. Heavy oil water flooding is convenient to implement, but the recovery rate of water flooding is generally low from the field results. For example, the actual average recovery rate of water flooding in most...

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): C08F290/06C08F220/56C08F212/14C08F220/06C08F4/40
CPCC08F290/062C08F4/40C08F220/56C08F212/14C08F220/06
Inventor 刘国良张付生管保山朱卓岩孙江河李雪凝苏慧敏
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap