A kind of polymer with surface active function and its preparation method and application

A technology of surface activity and polymer, applied in the field of polymers, can solve the problems that polymers used for oil displacement cannot have good surface activity, thickening water medium ability and temperature resistance and salt resistance ability, etc., to achieve enhanced oil recovery , solve the effect of poor temperature and salt resistance and good surface activity

Active Publication Date: 2019-11-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings that the current oil displacement polymers cannot have good surface activity, thickening water medium ability and temperature resistance and salt resistance ability, and at the same time consider the compatibility with different permeability reservoirs, to provide a Polymer with surface active function and its preparation method and application

Method used

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

Examples

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Effect test

Embodiment 1

[0071] This example is used to illustrate the polymer with surface active function and its preparation method according to the present invention.

[0072] Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 6.00g as the structural monomer DTE-1 (Zhangjiagang Tianding Chemical Co., Ltd.) shown in formula (14) as water-soluble surface-active monomer, 37.5g Acrylamide, 19.0g 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 25% by weight, fully stirred into the polymerization reaction bottle The solution turned into a transparent solution. Then add 25mg of auxiliary urea, 75mg of disodium edetate, 1mL of ammonia water and 10mg of isopropanol, and at the same time adjust the pH value of the system to 7.8 with sodium hydroxide. % high-purity nitrogen for 30 minutes to remove the oxygen in the polymerizatio...

Embodiment 2

[0076] This example is used to illustrate the polymer with surface active function and its preparation method according to the present invention.

[0077]Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 5.75g as the structural monomer DTE-2 (Zhangjiagang Tianding Chemical Co., Ltd.) shown in formula (15) as water-soluble surface-active monomer, 37.0g Acrylamide, 19.75g 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 24% by weight, fully stirred into the polymerization reaction bottle The solution turned into a transparent solution. Then add 25 mg of auxiliary agent urea, 75 mg of disodium edetate, and 1 mL of ammonia water, and at the same time adjust the pH value of the system to 7.8 with sodium hydroxide, place the reactor in a water bath, and feed high-purity nitrogen with a volume concentratio...

Embodiment 3

[0081] This example is used to illustrate the polymer with surface active function and its preparation method according to the present invention.

[0082] Adopt aqueous solution polymerization method, in the adiabatic polymerization reactor that has surface thermocouple, add 4.25g as the structural monomer DTE-3 shown in formula (16) (Zhangjiagang Tianding Chemical Co., Ltd.) as water-soluble surface-active monomer, 40.0g Acrylamide, 18.25g 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 26% by weight, fully stirred into the polymerization reaction bottle The solution turned into a transparent solution. Then add 50 mg of auxiliary agent urea, 100 mg of disodium edetate, 1 mL of ammonia water and 5 mg of N,N-methylenebisacrylamide, and at the same time adjust the pH value of the system to 8.0 with sodium hydroxide, place the reactor in a water bath, Introduce high-pur...

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Abstract

The invention relates to the field of polymers, and discloses a polymer with surface activity as well as a preparation method and application of the polymer. The polymer comprises a structure unit A,a structure unit B and a structure unit C, wherein the structure unit A has a structure as shown in formula (1); the structure unit B has a structure as shown in formula (2); the structure unit C hasa structure as shown in formula (3). The polymer with the surface activity is good in surface activity, capable of thickening aqueous medium and resistant to temperature and salinity. The formulas areas shown in the description.

Description

technical field [0001] The present invention relates to the field of polymers, in particular to a polymer with surface active function, a method for preparing the polymer with surface active function, a polymer with surface active function prepared by the method, and the Application of polymers with surface active functions as oil displacement agents. Background technique [0002] In the tertiary oil recovery technology, in order to solve the problem of poor temperature resistance and salt resistance of polymers used in oil displacement, scientific researchers have proposed a method of introducing functional monomers into the molecules and increasing the molecular weight of the polymers to improve the performance of the polymer aqueous solution. Due to the apparent viscosity and temperature-resistant and salt-resistant properties, hydrophobic association polymers, comb-shaped polymers, temperature-resistant and salt-resistant polymers have been developed, but these polymers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F220/58C08F222/02C09K8/588
CPCC08F220/56C09K8/588C08F220/585C08F222/02
Inventor 王晓春赵方园杨捷
Owner CHINA PETROLEUM & CHEM CORP
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