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Active functional polymer surfactant for oil displacement and preparation method thereof

A functional, polysurfactant technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., to achieve the effects of improving thermal stability, enhancing solubility, and high thermal stability

Inactive Publication Date: 2016-04-20
北京强宇亿达科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide active functional polysurfactant for oil displacement and preparation method thereof, to solve the problem of contradiction between viscosity increasing and water solubility of polymer

Method used

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  • Active functional polymer surfactant for oil displacement and preparation method thereof
  • Active functional polymer surfactant for oil displacement and preparation method thereof
  • Active functional polymer surfactant for oil displacement and preparation method thereof

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preparation example Construction

[0032] The preparation method of the above-mentioned active functional polysurfactant for oil displacement, such as figure 1 shown, including:

[0033]Step 101, adding sodium 2-acrylamido-2-methylpropanesulfonate, sodium dodecylbenzenesulfonate, and hexadecyldimethylallyl ammonium chloride to the first deionized water in sequence, and stirring Obtain the first mixed solution; during the addition process, after the last raw material is dissolved, add the next raw material;

[0034] Step 102, adding 3-acrylamido-3-methylsodium butyrate, N-vinyl-2-pyrrolidone and urea to the second deionized water in sequence, and stirring to obtain a second mixed solution; during the adding process, When the previous raw material is dissolved, add the next raw material;

[0035] Step 103, adding acrylamide crystals to the third deionized water, and stirring to obtain an acrylamide solution;

[0036] Step 104, pouring the first mixed solution and the second mixed solution into the acrylamide s...

Embodiment 1

[0068] Preparation of JHW126 polysurfactant

[0069]In the batching tank M, add 4.09 times of deionized water to 11.70 kg of sodium 2-acrylamido-2-methylpropanesulfonate, 3.60 kg of sodium dodecylbenzenesulfonate and hexadecyldimethylallyl The sum of the quantity of ammonium chloride 0.165 kilograms, then start to stir, add above-mentioned raw material in tank M successively, will add latter raw material again after former raw material dissolves completely, stir until raw material dissolves completely.

[0070] Add 3.45 times the sum of 2.96 kg of 3-acrylamido-3-methyl sodium butyrate, 1.17 kg of N-vinyl-2-pyrrolidone and 4.98 kg of urea to the batching tank N. Then start stirring, and add the above-mentioned raw materials into the tank N one by one. After the former raw material is completely dissolved, add the latter raw material, and stir until the raw material is completely dissolved. .

[0071] Add 2.35 times the amount of deionized water to 57.99 kg of acrylamide cryst...

Embodiment 2

[0077] Preparation of JHW126 polysurfactant

[0078] In the batching tank M, add 4.09 times of deionized water to 11.87 kg of sodium 2-acrylamido-2-methylpropanesulfonate, 3.60 kg of sodium dodecylbenzenesulfonate and hexadecyldimethylallyl The sum of the quantity of ammonium chloride 0.168 kilograms, then start to stir, add above-mentioned raw material in tank M successively, will add latter kind of raw material again after former raw material dissolves completely, stir until raw material dissolves completely.

[0079] Add 3.45 times the sum of 2.98 kg of 3-acrylamido-3-methyl sodium butyrate, 1.186 kg of N-vinyl-2-pyrrolidone and 5.2 kg of urea into the batching tank N. Then start stirring, and add the above-mentioned raw materials into the tank N one by one. After the former raw material is completely dissolved, add the latter raw material, and stir until the raw material is completely dissolved.

[0080] Add 2.35 times the amount of deionized water to 58.1 kg of acrylamid...

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Abstract

The invention relates to the technical field of oil recovery and particularly relates to an active functional polymer surfactant for oil displacement and a preparation method thereof. The polymer surfactant comprises the following raw materials: acrylamide, sodium hydroxide, sodium 2-acrylic amino-2-methyl propanesulfonate, hexadecyl dimethyl allyl ammonium chloride, sodium dodecyl benzene sulfonate, urea, sodium 3-acrylamido-3-methyl butyrate, N-vinyl-2-pyrrolidone and an initiator, wherein the initiator comprises the following components in percentage by mass based on the acrylamide: 0.0141% of sodium formate, 0.0192% of disodium ethylenediamintetraacetate, 0.2308% of low-temperature initiator, 0.0103% of potassium persulfate and 0.0102% of sodium hydrogen sulfite. The active functional polymer surfactant provided by the invention realizes efficient tackifying and is quickly dissolved in an aqueous solution, the contradiction between the tackifying property and water solubility of a polymer is solved, and the oil recovery factor is remarkably increased.

Description

technical field [0001] The invention relates to the technical field of oil recovery, in particular to an active functional polysurfactant for oil displacement and a preparation method thereof. Background technique [0002] Although polymers for oil displacement as tertiary oil recovery technology have been widely used in domestic oil fields, the salt and temperature resistance of polymer solutions have not been satisfied, and the stability of polymer solution viscosity has not been well resolved. It is required to solve the influence of high temperature and high salinity on polymer viscosification, solve the contradiction between polymer viscosification and water solubility, and solve other problems existing in the application of polymers in oil recovery. Considering the use cost and other factors, it is also necessary for the polymer to maintain sufficient viscosity in an extremely dilute solution under high temperature and high salinity conditions. [0003] Some scholars ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/584C08F220/56C08F220/58C08F226/02C08F220/54C08F226/10
CPCC08F220/56C09K8/584C08F220/585C08F226/02C08F220/54C08F226/10
Inventor 尚先强牛杰伟
Owner 北京强宇亿达科技开发有限公司
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