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Cardanol sulfonate surfactant oil displacement agent and preparation method thereof

A technology of cardanol sulfonate and surface activity, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problem of ineffective recovery of moderately heavy oil reservoirs, large soil environment damage, and product Refractory degradation and other problems, to achieve the effect of shortening the reaction cycle, improving reaction efficiency, and low cost

Inactive Publication Date: 2021-03-12
TIANJIN DAGANG OILFIELD BINGANG GRP BOHONG PETROLEUM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cardanol sulfonate surface-active oil displacement agent and its preparation method, which solves the problems of high cost, refractory product degradation, and damage to the soil environment in traditional surfactant oil displacement. The problem that the EOR effect is not obvious for medium heavy oil reservoirs

Method used

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  • Cardanol sulfonate surfactant oil displacement agent and preparation method thereof
  • Cardanol sulfonate surfactant oil displacement agent and preparation method thereof
  • Cardanol sulfonate surfactant oil displacement agent and preparation method thereof

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Effect test

Embodiment 1

[0029] The embodiment of the present invention provides a kind of cardanol sulfonate surfactant oil displacement agent and preparation method thereof:

[0030] Add 50g of cardanol sulfonate in a 250mL beaker, add 15g of bis-quaternary ammonium salt and 8g of sodium secondary alkyl sulfonate, stir on a magnetic stirrer for 20min until uniform, then add 4g of coconut oil diethanolamide, 4g of Tween 80 and 1 g of triethanolamine, stirred on a magnetic stirrer for 30 min until uniform, then added 20 g of tap water and continued to stir for 10 min to obtain the finished product.

[0031] The preparation method of cardanol sulfonate surfactant is:

[0032] Step 1: etherification reaction; based on the total mass of 200g, measure 120g of cardanol and 60g of dibromobutane and add them to a four-necked flask equipped with a mechanical stirrer, a condenser, a dropping funnel, and a decompression device, and start stirring Mix evenly, connect the condensing device; measure 8g of catalys...

Embodiment 2

[0040] The embodiment of the present invention provides a kind of cardanol sulfonate surfactant oil displacement agent and preparation method thereof:

[0041] Add 50g of cardanol sulfonate in a 250mL beaker, add 15g of bis-quaternary ammonium salt and 8g of sodium secondary alkyl sulfonate, stir on a magnetic stirrer for 20min until uniform, then add 4g of coconut oil diethanolamide, 4g of Tween 80 and 1 g of triethanolamine, stirred on a magnetic stirrer for 30 min until uniform, then added 20 g of tap water and continued to stir for 10 min to obtain the finished product.

[0042] The preparation method of cardanol sulfonate surfactant is:

[0043] Step 1: etherification reaction. Based on the total mass of 200g, measure 130g of cardanol and 65g of dibromobutane and add them to a four-necked flask equipped with a mechanical stirrer, a condenser, a dropping funnel, and a decompression device, start stirring and mix evenly, and connect the condensing device; Measure 9g of ca...

Embodiment 3

[0050] The embodiment of the present invention provides a kind of cardanol sulfonate surfactant oil displacement agent and preparation method thereof:

[0051] Add 50g of cardanol sulfonate in a 250mL beaker, add 15g of bis-quaternary ammonium salt and 8g of sodium secondary alkyl sulfonate, stir on a magnetic stirrer for 20min until uniform, then add 4g of coconut oil diethanolamide, 4g of Tween 80 and 1 g of triethanolamine, stirred on a magnetic stirrer for 30 min until uniform, then added 20 g of tap water and continued to stir for 10 min to obtain the finished product.

[0052] The preparation method of cardanol sulfonate surfactant is:

[0053] Step 1: etherification reaction. Based on the total mass of 200g, measure 140g of cardanol and 70g of dibromobutane and add them to a four-necked flask equipped with a mechanical stirrer, a condenser, a dropping funnel, and a decompression device, start stirring and mix evenly, and connect the condensing device; Measure 10g of c...

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Abstract

The invention provides a cardanol sulfonate surfactant oil displacement agent and a preparation method thereof, and relates to the technical field of active oil displacement agents. The cardanol sulfonate surfactant oil displacement agent is prepared from the following components in parts by weight: 50-60g of cardanol sulfonate, 15-18g of biquaternary ammonium salt, 8-10g of secondary alkyl sodiumsulfonate, 4-6g of coconut oil diethanolamide, 4-6g of Tween 80, 1-3g of triethanolamine and 20-30g of tap water, and the preparation method of the cardanol sulfonate comprises the following steps: step 1, etherification reaction is performed with the total mass of 200g: weighing 120-140 g of cardanol and 60-70 g of dibromobutane and adding into a four-neck flask provided with a mechanical stirrer, a condenser pipe, a dropping funnel and a pressure reducing device; cashew nut shell liquid is used as a raw material to extract cardanol, the raw material is sufficient, low in cost, non-toxic andenvironment-friendly, and in the sulfonation and neutralization reaction stage of cardanol sulfonate synthesis, a continuous microreactor is adopted so that the reaction steps are simplified, the reaction period is shortened, and the reaction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of active oil displacement agents, in particular to a cardanol sulfonate surface active oil displacement agent and a preparation method thereof. Background technique [0002] With the rapid development of surfactant flooding technology, problems such as high cost of surfactant flooding, refractory products, and greater damage to the soil environment have gradually emerged. Replacing the chemical industry with biomass is the sustainable development of mankind. The only way to go. Bio-based surfactants synthesized from biomass have become a research hotspot in this field because of their good biodegradability, non-pollution and reproducibility of raw materials. Among them, natural plants are used as raw materials. The research on synthetic biomass surfactants mainly focuses on vegetable oil surfactants, because most of them have no toxic side effects, no irritation, high safety, and good compatibility, so they...

Claims

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Application Information

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IPC IPC(8): C09K8/584
CPCC09K8/584
Inventor 王志宏周传臣石昀刘存辉安丽媛甄巧玲葛红江王晓燕郭永平谢萍冀俊伟刘杰刘旻陈颖张婧
Owner TIANJIN DAGANG OILFIELD BINGANG GRP BOHONG PETROLEUM CHEM
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