Amphipathic polymerizable monomer and amphipathic tackifying copolymer and preparation method and application thereof

A technology for polymerizing monomers and amphiphilicity, applied in chemical instruments and methods, sulfonate preparation, drilling compositions, etc. Good temperature and salt resistance

Inactive Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of poor viscosity-increasing property under high temperature and high salt of the copolymer obtained by copolymerization of existing surface-active monomers and monomers such as acrylamide, and to provide a kind of amphiphile with good surface activity. Polymerized monomer and amphiphilic amphiphilic copolymer with strong viscosifying performance and good solubility under high temperature and high salt and preparation method thereof

Method used

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  • Amphipathic polymerizable monomer and amphipathic tackifying copolymer and preparation method and application thereof
  • Amphipathic polymerizable monomer and amphipathic tackifying copolymer and preparation method and application thereof
  • Amphipathic polymerizable monomer and amphipathic tackifying copolymer and preparation method and application thereof

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preparation example Construction

[0032] According to the preparation method of the amphiphilic polymerizable monomer of the present invention, the method comprises, under the condition of alkylation, in the mixture of the organic solvent and water, under the basic condition, the carbon number is 6-18 The aliphatic amine or carbon number is that the aromatic amine of 6-18 contacts with the halogenated alkyl sulfonic acid alkali metal salt shown in following formula (2), obtains the intermediate shown in following formula (3); In alkaline solution, contacting the intermediate with acryloyl chloride;

[0033] X-CH 2 -(CH 2) n -SO 3 M formula (2)

[0034] R-NH-(CH 2 ) n+1 -SO 3 M formula (3)

[0035] In formula (2) and formula (3): X represents a halogen, n is an integer of 0-4, M is an alkali metal element, R is an alkyl group with 6-18 carbon atoms or an aryl group with 6-18 carbon atoms .

[0036] In preferred cases, the molar ratio of the fatty amine or aromatic amine to the alkali metal haloalkylsu...

Embodiment 1

[0071] This example serves to illustrate the amphiphilic polymerizable monomers and amphiphilic adhesion-promoting copolymers of the present invention and methods for their preparation.

[0072] (1) Preparation of amphiphilic polymerizable monomers:

[0073] Add 1mol of n-octylamine, 1mol of sodium chloroethylsulfonate, 320mL of ethanol, 80mL of water (volume ratio of 4), and 20g of sodium hydroxide into a 1L three-necked flask. The pH value of the solution in the reactor is 10.2. React at high temperature for 12 hours, cool and filter to obtain a solid, which is determined to be an intermediate of N-octyl ethyl sulfonate by nuclear magnetic resonance analysis; 0.4mol of the above-mentioned N-octyl ethyl sulfonate intermediate is added to 500mL In the there-necked flask, add 120 mL of water, add 10 g of sodium hydroxide, and after dissolving, add 0.5 mole of acryloyl chloride dropwise within 2 hours, react at a temperature of 5°C for 12 hours, distill off the solvent water, an...

Embodiment 2

[0079] This example serves to illustrate the amphiphilic polymerizable monomers and amphiphilic adhesion-promoting copolymers of the present invention and methods for their preparation.

[0080] (1) Preparation of amphiphilic polymerizable monomers:

[0081] With 1mol dodecylamine, 1mol sodium chloroethanesulfonate, 300mL ethanol and 60mL water (volume ratio is 5: 1), 22g sodium hydroxide is joined in the 1L there-necked flask, the pH value of solution in the reactor is 10.9, in React at a temperature of 55°C for 12 hours, cool and filter to obtain a solid, which is determined to be N-dodecylsodium ethylsulfonate intermediate by nuclear magnetic resonance analysis; the above-mentioned N-dodecylsodium ethylsulfonate intermediate Add 0.4mol of acryloyl chloride to a 500mL three-necked flask, add 120mL of water, add 10g of sodium hydroxide, and after dissolving, add 0.52 mol of acryloyl chloride dropwise within 2 hours, react at 8°C for 12 hours, and distill off the solvent water...

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Abstract

The invention provides an amphipathic polymerizable monomer with a structure shown as a formula (I), and further provides a preparation method for the amphipathic polymerizable monomer and an amphipathic tackifying copolymer. The amphipathic polymerizable monomer has high amphipathy, and has a self-solubilizing function when used for preparing a polymer; a copolymer with an amphipathic micro block structure and high solubility can be obtained without adding any surfactant; the amphipathic polymerizable monomer belongs to a derivative of acrylamide, and is easy to copolymerize with an acrylamide monomer; and two hydrogen atoms on acidamide N are substituted, so that the hydrolytic resistance of the acidamide N and the copolymer are enhanced, and the high-temperature stability of the copolymer is enhanced. The amphipathic tackifying copolymer has a simple preparation process, and can be prepared without adding a large quantity of surfactants, and the production cost is greatly lowered.

Description

technical field [0001] The invention relates to an amphiphilic polymerizable monomer and an amphiphilic viscosity-increasing copolymer as well as a preparation method and application thereof. Background technique [0002] At present, large oil fields such as Daqing, Shengli, Zhongyuan, Huabei, and Dagang in China have entered the middle and late stage of exploitation, and the water content of the produced oil is as high as 90%, and the temperature and salinity have greatly increased. The primary and secondary oil recovery technologies can no longer meet the requirements. The increasing demand for crude oil, therefore, the use of tertiary oil recovery technology to enhance oil recovery has become an important strategic measure of my country's oil industry. [0003] Polymer flooding is one of the most effective methods in tertiary oil recovery technology. It means that the polymer must have excellent viscosity-increasing performance under reservoir conditions, and must have a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/15C07C303/32C08F220/56C08F220/06C08F220/58C09K8/588
Inventor 吴江勇高文骥王晓春王建宇于芳杨捷
Owner CHINA PETROLEUM & CHEM CORP
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