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Temperature-resistant salt-resistant monomer and polymer, and preparation method and application thereof

A temperature-resistant, salt-resistant, polymer technology, applied in chemical instruments and methods, sulfonic acid preparation, drilling compositions, etc., can solve problems such as poor temperature-resistant and salt-resistant properties

Active Publication Date: 2017-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of poor heat-resistant and salt-resistant polymers existing in the prior art, to provide a temperature-resistant and salt-resistant monomer, a preparation method of a temperature-resistant and salt-resistant monomer, and The obtained temperature-resistant and salt-resistant monomer, a temperature-resistant and salt-resistant polymer, a preparation method of a temperature-resistant and salt-resistant polymer, a temperature-resistant and salt-resistant polymer prepared by the method, and the temperature-resistant and salt-resistant polymer Application of substances as oil displacing agents

Method used

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  • Temperature-resistant salt-resistant monomer and polymer, and preparation method and application thereof
  • Temperature-resistant salt-resistant monomer and polymer, and preparation method and application thereof
  • Temperature-resistant salt-resistant monomer and polymer, and preparation method and application thereof

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preparation example Construction

[0038] The present invention also provides a method for preparing a temperature-resistant and salt-resistant monomer, the method comprising the following steps:

[0039] (1) Under amidation reaction conditions, the amine compound with the structure shown in formula (3) is contacted with acryloyl chloride;

[0040]

[0041] R is H, C1 -C 3 Alkylene, C 2 -C 3 The hydrocarbyl group with unsaturated double bonds or the absence; when R is C 1 -C 3 Alkylene or C 2 -C 3 When a hydrocarbon group with an unsaturated double bond is present, R and N atoms are bonded to form a ring; when R does not exist, the carbon atoms on the benzene ring connected to R are connected to N atoms; 0≤m≤3 and m is an integer;

[0042] (2) Under etherification reaction conditions, the product obtained in step (1) is contacted with haloalkylsulfonic acid; the general formula of the chloroalkylsulfonic acid is MSO 3 -(CH 2 )p 1 -X, X is halogen, p 1 is an integer of 1-3, and M is one of H, Li, Na...

Embodiment approach

[0053] According to a preferred embodiment of the present invention, the temperature-resistant and salt-resistant monomer is prepared by the following method:

[0054] (1) react the amine compound with the structure shown in formula (3) with acryloyl chloride overnight in an ice-water bath at 0°C under alkaline conditions, and then purify the reaction product;

[0055] (2) The product purified in step (1) is heated and refluxed with the haloalkylsulfonic acid and / or hexyllactone at 80°C under alkaline conditions for 2 hours, and the temperature-resistant product is obtained after purification. Anti-salt monomer.

[0056] The present invention has neither the method for purifying the reaction product of the amine compound and acryloyl chloride nor the method for purifying the reaction product of the product purified in step (1) with haloalkylsulfonic acid and / or hexyl sultone In particular, for example, purification can be carried out by extraction, recrystallization and the l...

preparation example 1

[0092] Preparation Example 1 is used to illustrate the temperature-resistant and salt-resistant monomer F1 provided by the present invention and its preparation method.

[0093] Add o-hydroxyaniline (10.9124g, 100mmol) into a dry three-necked flask, then add 250mL of anhydrous THF to dissolve, then add triethylamine (11.1301g, 110mmol), and stir at room temperature 25°C for 30min. Then the whole system was cooled to 0° C. with an ice-water bath, and acryloyl chloride (9.9611 g, 110 mmol) was slowly added dropwise while keeping the temperature constant. After the dropwise addition, naturally slowly return to room temperature 25°C and stir overnight. After the reaction was finished, water (100mL) was added dropwise to quench the reaction system, and then the reaction product was extracted with ether (75mL×3), and the reaction product was extracted with Na 2 SO 4 The organic phase was dried, spin-dried and then recrystallized (the recrystallization solvent was a mixture of n-he...

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Abstract

The invention relates to the field of research of temperature-resistant salt-resistant oil-displacing agents, and discloses a temperature-resistant salt-resistant monomer and polymer, and a preparation method and application thereof. The structure of the temperature-resistant salt-resistant monomer is disclosed as Formula (1), wherein 0<=m<=3, 1<=p<=4, and m and p are respective a whole number; R is H, C1-C3 alkylidene, C2-C3 alkyl with unsaturated double bond, or null; when R is C1-C3 alkylidene or C2-C3 alkyl with unsaturated double bond, R and N atom are linked to form a ring; when R is null, the carbon atom on the benzene ring connected with R is connected with the N atom; and M is H, Li, Na or K. The polymer provided by the invention contains the structural unit formed by polymerizing the temperature-resistant salt-resistant monomer, and has very excellent temperature resistance and salt resistance.

Description

technical field [0001] The present invention relates to the research field of temperature-resistant and salt-resistant oil displacement agents, in particular, to a temperature-resistant and salt-resistant monomer, a preparation method of a temperature-resistant and salt-resistant monomer, and a temperature-resistant and salt-resistant monomer prepared by the method. body, a temperature-resistant and salt-resistant polymer, a preparation method of a temperature-resistant and salt-resistant polymer, the temperature-resistant and salt-resistant polymer prepared by the method, and the application of the temperature-resistant and salt-resistant polymer as an oil displacement agent . Background technique [0002] At present, polyacrylamide (HPAM) solution is mainly used in oilfield tertiary oil recovery to increase viscosity to control fluidity and expand swept volume to enhance oil recovery. In my country's Daqing, Shengli and other oilfields, this technology has been widely use...

Claims

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Application Information

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IPC IPC(8): C07C303/02C07C309/11C09K8/588C07D217/02C07D215/08C07D209/08C08F220/56C08F220/58
Inventor 方昭胡晓娜伊卓刘希杜超祝纶宇
Owner CHINA PETROLEUM & CHEM CORP
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