Alkyl phenol sulfonic polyoxyethylene ether sulfonate and preparation thereof

A technology of alkylphenol sulfonic acid polyoxyethylene ether sulfonate and alkylphenol sulfonic acid polyoxyethylene ether, which is applied in the field of alkylphenol sulfonic acid polyoxyethylene ether sulfonate and its preparation, can solve the problem of oil displacement Poor efficiency, corrosion of equipment and pipelines, high production costs, etc., to achieve the effect of enhanced 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

Method used

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  • Alkyl phenol sulfonic polyoxyethylene ether sulfonate and preparation thereof
  • Alkyl phenol sulfonic polyoxyethylene ether sulfonate and preparation thereof
  • Alkyl phenol sulfonic polyoxyethylene ether sulfonate and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Synthesis of Sodium Nonylphenol Sulfonic Acid Polyoxyethylene(7) Ether Sulfonate

[0036] (1) Add 110 grams of nonylphenol and 1.2 grams of calcium oxide catalyst in the reactor equipped with condensing device, stirring device and gas disperser, when heating to 135 ℃ while feeding nitrogen, add 11 grams of water, stirring reaction 1 Hour. Then first distill water at normal pressure, then decompress under 20 meters of mercury vacuum, steam the moisture in 140 DEG C for 20 minutes, cool the solution to 80 DEG C, slowly add dropwise the theoretical acid amount of neutralization catalyst 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then blow with nitrogen for 3-4 times to remove the air in the system, and then adjust the reaction temperature of the system Slowly inject 155 grams of ethylene oxide at 150°C, and control the pressure ≤ 0.40MPa to carry out the alkoxylation ...

Embodiment 2

[0042] Synthesis of Sodium Nonylphenol Sulfonic Acid Polyoxyethylene(5) Ether Sulfonate

[0043] (1) Add 110 grams of nonylphenol and 1.2 grams of calcium oxide catalyst in the reactor equipped with condensing device, stirring device and gas disperser, when heating to 135 ℃ while feeding nitrogen, add 11 grams of water, stirring reaction 1 Hour. Then first normal pressure distilled water, then decompressed under 20 mm Hg vacuum, evaporated moisture at 140 DEG C for 20 minutes, cooled the solution to 80 DEG C, slowly added dropwise neutralizing catalyst theoretical acid amount 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then blow with nitrogen for 3-4 times to remove the air in the system, and then adjust the reaction temperature of the system Slowly feed 115 grams of ethylene oxide at 150°C, and control the pressure ≤ 0.40MPa to carry out the alkoxylation reaction; after t...

Embodiment 3

[0049] Synthesis of Sodium Dodecylphenol Sulfonate Polyoxyethylene(6) Ether Sulfonate

[0050] (1) Add 132 grams of dodecylphenol and 1.3 grams of calcium oxide catalyst to the reactor equipped with condensing device, stirring device and gas disperser, heat to 135 ° C while feeding nitrogen, add 11 grams of water, and stir the reaction 1 hour. Then first distilled water at normal pressure, then decompressed under 20 milligrams of mercury vacuum, steamed moisture in 140°C for 20 minutes in a vacuum, cooled the solution to 80°C, and slowly added dropwise the theoretical acid amount of neutralization catalyst 20 (weight )% concentrated sulfuric acid, heat the system temperature to 85-90°C, turn on the vacuum system, dehydrate under high vacuum for 1 hour, then blow with nitrogen for 3-4 times to remove the air in the system, and then adjust the reaction temperature of the system Slowly inject 135 grams of ethylene oxide at 150°C, and control the pressure ≤ 0.40MPa to carry out t...

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Abstract

The invention relates to alkylphenol sulfonic polyoxyethylene ether 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 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 to 20. The alkylphenol sulfonic polyoxyethylene ether 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 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 the reservoir rock in a ...

Claims

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Application Information

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