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

Acrylamide copolymer oil-displacing agent containing phenothiazine and oleamide structures and synthesis method

A technology of acrylamide copolymer and acrylamide copolymerization, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problem of poor temperature resistance, salt resistance and shear dilution resistance, complicated operation and high cost of oil displacement agent problem, to achieve the effect of enhanced oil recovery, simple preparation method and easy operation

Inactive Publication Date: 2015-03-04
SOUTHWEST PETROLEUM UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water-soluble quaternary copolymerization containing a rigid ring structure and a hydrophobic chain structure to solve the problems of existing oil displacement agents with poor temperature resistance, salt resistance and shear dilution resistance
[0006] Another object of the present invention is to provide a method for preparing a water-soluble polymer oil-displacing agent containing a rigid ring structure and a hydrophobic chain structure, so as to solve the problem of complex operation, low yield and high cost of the existing oil-displacing agent preparation method The problem

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
  • Acrylamide copolymer oil-displacing agent containing phenothiazine and oleamide structures and synthesis method
  • Acrylamide copolymer oil-displacing agent containing phenothiazine and oleamide structures and synthesis method
  • Acrylamide copolymer oil-displacing agent containing phenothiazine and oleamide structures and synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation of embodiment one monomer N-allyl phenothiazine (NADP)

[0029] (1) 19.9 parts of phenothiazine and 50 parts of tetrahydrofuran were dropped into Reactor 1, and stirred at room temperature until completely dissolved;

[0030] (2) Slowly add 36 parts of NaH to reactor 1, during the reaction, the system temperature is controlled below 10°C;

[0031] (3) filter the product obtained in reactor 1, remove the solid phase to obtain a liquid phase, and transfer the liquid phase to reactor 2;

[0032] (4) Slowly add 144 parts of allyl bromide dropwise to the reactor 2, during the dropwise addition, the temperature of the system is controlled below 10°C;

[0033] (5) After the dropwise addition is completed, the reactor is placed at room temperature, and the reaction is continued for 5 hours to obtain the crude product of the target product;

[0034] (6) Excess raw materials and solvent were distilled off under reduced pressure to obtain light yellow solid N-allyl...

Embodiment 6

[0035] The preparation of embodiment two tetrapolymer AM / AA / NADP / CON

Embodiment 7

[0063] Structural Characterization of Embodiment Three Quaternary Polymer AM / AA / NADP / CON

[0064] The sample obtained in Test Example 2 in Example 2 was subjected to structural analysis, and the technical method used in the analysis was infrared spectroscopy. After the above samples were purified many times, they were characterized by infrared spectroscopy by using the KBr tablet method, and the results were as follows: figure 1 . From figure 1 It can be seen that the infrared spectrum contains -NH 2 ,—OH,C—O,—CH 2 - Absorption peaks of functional groups such as C=O and benzene ring, the above structure is consistent with the target copolymer.

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
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Permeabilityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an acrylamide copolymer oil-displacing agent containing phenothiazine and oleamide structures and a synthesis method of the acrylamide copolymer oil-displacing agent. The oil-displacing agent is prepared from 60-80 parts of acrylamide, 20-40 parts of acrylic acid, 0.5-0.9 part of N-allyl phenothiazine and 0.4-0.8 part of N-allyl oil amide as monomers (based on mass), 0.1-0.5 part of NaSO3-(NH4)2S2O8 as an initiating system, and alkylphenol ethoxylates (OP-10) as a solubilizer in a manner of micellar copolymerization for 6-10 hours in an aqueous solution at 30-40 DEG C when the pH is 5-9. The synthesis method of the oil-displacing agent has the advantages of simple method, high productivity, high economic efficiency and the like.

Description

technical field [0001] The invention relates to a tetrapolymer oil-displacing agent containing a rigid ring structure and a hydrophobic chain structure, which is used for oil displacement in oilfields of the petroleum industry to enhance crude oil recovery, and a synthesis method thereof. Background technique [0002] With the development of economy and society and the continuous deepening of industrialization, people's dependence on oil and its derivative products has become more and more obvious. However, with the continuous reduction of oil reserves and the increasing difficulty of oil field development, oil as a non-renewable resource has become more and more valuable. Therefore, there is an urgent need to redevelop oil fields to increase crude oil production. Enhanced oil recovery technology is the fundamental way to stabilize crude oil production in oilfields. As one of the main means of enhancing oil recovery, polymer flooding has a clear oil displacement mechanism,...

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): C08F220/56C08F220/06C08F226/06C08F226/02C09K8/588
Inventor 苟绍华敬东何杨赵鹏张勤周利华
Owner SOUTHWEST PETROLEUM UNIV
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