Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof

A technology of alkylphenol sulfonic acid polyoxyethylene ether succinic acid and monoester sulfonate, which can be applied in the preparation of sulfonic acid, chemical instruments and methods, drilling composition, etc. Oil well damage, high production costs, etc., to achieve the effect of improving crude oil recovery

Active Publication Date: 2008-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the technical problems to be solved by the present invention is that the oil displacement agent containing surfactant in the prior art has poor oil displacement efficiency under high temperature and high salinity conditions, and at the same ti

Method used

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  • Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof
  • Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof
  • Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Sodium Nonylphenol Sulfonate Polyoxyethylene(7) Ether Succinate Monoester Sulfonate

[0035] (1) Add 110 grams (0.5 moles) of nonylphenol and 2.2 grams of calcium oxide in the reactor equipped with condensing device, stirring device and gas disperser, when heating to 135 ℃ while flowing nitrogen, add 22 grams of water, The reaction was stirred for 1 hour. Then first distill water at normal pressure, then decompress under 20 mm Hg vacuum, vacuumize at 140°C for 20 minutes to evaporate moisture, cool the solution to 80°C, slowly add 20% by weight of the theoretical acid amount of the neutralization catalyst of concentrated sulfuric acid. Heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then use nitrogen to blow 3-4 times to remove the air in the system, then adjust the reaction temperature of the system to 150°C Add 157 grams of ethylene oxide, control the pressure ≤ 0.40MPa to carry out alkoxylation reaction; af...

Embodiment 2

[0040] Synthesis of Sodium Dodecylphenol Sulfonate Polyoxyethylene(7) Ether Succinate Monoester Sulfonate

[0041] (1) Add 131 grams (0.5 moles) of dodecylphenol and 2.3 grams of calcium oxide to a reactor equipped with a condensing device, a stirring device and a gas disperser, and when heating to 135 ° C while passing nitrogen, add 22 grams water, stirred for 1 hour. Then first distill water at normal pressure, then decompress under 20 mm Hg vacuum, vacuumize at 140°C for 20 minutes to evaporate moisture, cool the solution to 80°C, slowly add 20% by weight of the theoretical acid amount of the neutralization catalyst of concentrated sulfuric acid. Heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then use nitrogen to blow 3-4 times to remove the air in the system, then adjust the reaction temperature of the system to 150°C Add 155 grams of ethylene oxide, control the pressure ≤ 0.40MPa to carry out alkoxylation react...

Embodiment 3

[0046] Synthesis of Sodium Nonylphenol Sulfonic Acid Polyoxyethylene(10) Ether Succinate Monoester Sulfonate

[0047] (1) Add 220 grams (1.0 moles) of nonylphenol and 2.0 grams of calcium oxide in the reactor equipped with condensing device, stirring device and gas disperser, when heating to 135 ℃ while flowing nitrogen, add 22 grams of water, The reaction was stirred for 1 hour. Then first distill water at normal pressure, then decompress under 20 mm Hg vacuum, vacuumize at 140°C for 20 minutes to evaporate moisture, cool the solution to 80°C, slowly add 20% by weight of the theoretical acid amount of the neutralization catalyst of concentrated sulfuric acid. Heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then use nitrogen to blow 3-4 times to remove the air in the system, then adjust the reaction temperature of the system to 150°C Add 445 grams of ethylene oxide, control the pressure ≤ 0.40MPa to carry out alkoxyl...

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Abstract

The invention relates to alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate and the preparation method thereof, mainly aiming at solving the problems that current oil displacement agent containing surfactant is poor in oil displacement efficiency under high temperature with the existence of high salt and that the oil displacement agent contains alkali and causes damages to the stratum and the oil field and erodes the equipment and the pipes, which results in high production cost. The invention adopts alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate with general molecular formula (I)to solve the problem; wherein M is alkali metal; R is alkyl from C1-C22; n is any integer from 1 and 20. The alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate can be applied to the production of tertiary oil recovery in oil fields.

Description

technical field [0001] The invention relates to an alkylphenol sulfonic acid polyoxyethylene ether succinic acid monoester sulfonate and a preparation method thereof. Background technique [0002] The main oilfields in my country have entered a period of high water cut after primary and secondary extraction, and crude oil production has declined year by year. In order to improve crude oil recovery and maximize the development of remaining reserves, tertiary oil recovery technology has played a very important role in ensuring stable and high production of oil fields . Among them, the ASP flooding (alkali-polymer-surfactant) technology using surfactant can greatly improve the oil displacement efficiency in the case of low surfactant dosage, so it has become economically and technically important. A very successful new technology for enhanced oil recovery. The main mechanism is: after the oil field enters the high water cut period, the remaining oil is trapped in the pores of ...

Claims

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Application Information

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IPC IPC(8): C07C309/42C07C303/04C09K8/584
Inventor 张卫东沙鸥陈荣福
Owner CHINA PETROLEUM & CHEM CORP
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