Dehydroabietylamide ethyl sulfonate surfactant, synthesis method and application of surfactant in tertiary oil recovery

A technology of ethyl sulfonate and surfactant, applied in the direction of sulfonate preparation, chemical instruments and methods, drilling composition, etc., can solve the problem of not measuring low interfacial tension, etc.

Inactive Publication Date: 2011-02-16
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But because there was no urgent need for oil production at that time, and on

Method used

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  • Dehydroabietylamide ethyl sulfonate surfactant, synthesis method and application of surfactant in tertiary oil recovery
  • Dehydroabietylamide ethyl sulfonate surfactant, synthesis method and application of surfactant in tertiary oil recovery
  • Dehydroabietylamide ethyl sulfonate surfactant, synthesis method and application of surfactant in tertiary oil recovery

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1, the preparation of dehydroabietamide ethylsulfonate sodium surfactant:

[0030] 1. Preparation of dehydroabietic acid chloride: 60.1g of dehydroabietic acid (industrial product, Zhejiang Wanan Plastic Co., Ltd.) was dissolved in 100.0g of toluene and added to a four-necked bottle, and an electric stirrer, reflux condenser, Connect the gas absorption device, thermometer and constant pressure dropping funnel to the four-necked bottle, put 35.7g of thionyl chloride into the constant pressure dropping funnel, heat the system to 30°C under stirring condition, and slowly add chlorine dropwise Add thionyl oxide to the system, drop it within 30 minutes, keep the system at 30°C and continue to react for 10 hours, distill off toluene and excess thionyl chloride, and distill under reduced pressure to obtain dehydroabietoyl chloride;

[0031] 2. Preparation of dehydroabietamide ethyl sulfonic acid: Dissolve 31.3g of taurine in a mixed solvent of 100.0g of acetone and ...

Embodiment 2

[0033] Embodiment 2, the surface tension test of dehydroabietamide ethyl sulfonate sodium surfactant

[0034]Get the sodium dehydroabietamide ethyl sulfonate prepared in Example 1, take distilled water as solvent, prepare the dehydroabietamide sodium ethyl sulfonate aqueous solution of different concentrations, measure its surface tension at 25 ℃ with drop volume method, measure the result Such as figure 1 shown.

[0035] The curve in the figure shows that the surface tension of the solution begins to decrease slightly with the increase of concentration, then decreases rapidly, and finally tends to remain unchanged, which is consistent with the surface tension of general surfactants. sodium ethyl sulfonate cmc =1.0×10 -4 mol / L, gamma cmc =31.99mN / m, showing that the synthesized sodium dehydroabietamide ethyl sulfonate has better surface activity.

Embodiment 3

[0036] Embodiment 3, the foaming of dehydroabietamide ethyl sulfonate sodium surfactant, foam stabilizing performance experiment

[0037] With reference to the improved Ross-Miles method specified in GB / T 7462-94, get the sodium dehydroabietamide ethyl sulfonate prepared in Example 1, and prepare the aqueous solutions of dehydroabietamide ethyl sulfonate with different concentrations, and prepare the dehydroabietamide ethyl sulfonate aqueous solution at 25°C Determination of its foaming performance under the test results are as follows figure 2 shown. Depend on figure 2 It can be seen from the curve that as the active agent concentration increases, its foaming height ( H ) increases, and when the active agent concentration reaches 0.6g / L, the foaming height tends to be stable and reaches above 150mm, indicating that the synthetic surfactant has good foaming property.

[0038] image 3 Provided is the foam stabilizing property of sodium dehydroabietamide ethyl sulfonate, ...

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Abstract

The invention discloses a dehydroabietylamide ethyl sulfonate surfactant, a preparation method and application of the surfactant in tertiary oil recovery. In the method, dehydroabietic acid is taken as a raw material and reacts with base after acylation and sulfonation in sequence to form salt. Therefore, a new variety-dehydroabietylamide ethyl sulfonate surfactant is added in the big family of the surfactant; and the surfactant can be used in tertiary oil recovery, wherein, interfacial tension of crude oil in Daqing No. 2 Oil Production Plant can be lowered to 10-2-10-4mN/m orders of magnitude in an alkali-free binary system formula.

Description

technical field [0001] The invention relates to a sulfonate anion surfactant based on dehydroabietic acid, a synthesis method thereof, and the application of the surfactant in tertiary oil recovery. Background technique [0002] Dehydroabietic acid, also known as dehydroabietic acid, is a general term for a class of monobasic resin acids containing an alkylhydrophenanthrene structure, and is an important biomass resource. There are nine isomers of abietic acid, and dehydroabietic acid is one of the isomer products. Compared with other isomers in abietic acid, there is no double bond that is prone to oxidation on the molecular skeleton of dehydroabietic acid, but contains a benzene ring, so that its chemical properties are relatively stable. The tricyclic phenanthrene skeleton of dehydroabietic acid has good hydrophobicity, and the carboxyl group is easy to be further modified to introduce hydrophilic groups, so as to prepare different types of surfactants. [0003] my coun...

Claims

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Application Information

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IPC IPC(8): C09K8/584C07C303/32C07C309/15B01F17/24C09K23/24
Inventor 于涛丁伟曲广淼栾和鑫李钟
Owner NORTHEAST GASOLINEEUM UNIV
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