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Phenol ether sulfonate oil-based emulsifier and preparation method thereof

A technology of phenol ether sulfonate, phenol polyoxyethylene polyoxypropylene ether hydroxypropane sulfonic acid, applied in sulfonate preparation, chemical instruments and methods, organic chemistry and other directions, can solve the problem of few emulsifiers and poor emulsification performance , salt intolerance and other problems, to achieve the effect of excellent temperature resistance, good emulsion stability and small filtration loss

Active Publication Date: 2014-07-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is that in the prior art, there are few types of oil-based drilling fluid emulsifiers, poor emulsifying performance, no salt tolerance, and no temperature tolerance. A new phenol ether sulfonate is provided

Method used

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  • Phenol ether sulfonate oil-based emulsifier and preparation method thereof
  • Phenol ether sulfonate oil-based emulsifier and preparation method thereof
  • Phenol ether sulfonate oil-based emulsifier and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (a) Synthesis of nonylphenol polyoxyethylene polyoxypropylene ether (m=2, n=15)

[0030] Add 220 grams (1 mole) of nonylphenol and 5.6 grams of calcium oxide catalyst to a reactor equipped with a condensing device, a stirring device and a gas disperser. When heating to 135°C while blowing nitrogen, add 20 grams of water and stir to react. 1 hour. After the water is removed, the temperature is lowered to 80°C, and the theoretical amount of sulfuric acid (20wt%) neutralizing the catalyst is slowly added dropwise to obtain a high activity and high selectivity composite calcium oxide alkoxylation catalyst reaction liquid system. Heat the temperature to 80~90℃, turn on the vacuum system, dehydrate under high vacuum for 2 hours, then purge with nitrogen 3~4 times, adjust the reaction temperature of the system to 150℃ and slowly pour into 88 grams (2 moles) of epoxy Ethane, controlled pressure≤0.40MPa, after the ethylene oxide reaction is over, 870 grams (15 moles) of propylene ...

Embodiment 2

[0037] (a) Synthesis of octylphenol polyoxyethylene polyoxypropylene ether (m=1, n=30)

[0038] Add 206 grams (1 mole) of octylphenol and 10.3 grams of calcium oxide catalyst to a reactor equipped with a condensing device, a stirring device and a gas disperser, and the same as [Example 1] to obtain a composite type with high activity and high selectivity Calcium oxide alkoxylation catalyst reaction liquid system, heat the system temperature to 80~90℃, turn on the vacuum system, dehydrate under high vacuum for 2 hours, then purge with nitrogen 3 to 4 times, adjust the system reaction temperature to 160 Slowly pass in 44 grams (1 mole) of ethylene oxide at ℃, and control the pressure ≤ 0.60 MPa. After the ethylene oxide reaction is over, slowly pass in 1740 grams (30 moles) of propylene oxide at 160°C to control the pressure ≤0.60MPa. After the reaction, the system was purged with nitrogen, and after cooling, it was neutralized and dehydrated to obtain 1920.4 g of octylphenol poly...

Embodiment 3

[0043] (a) Synthesis of dodecylphenol polyoxyethylene polyoxypropylene ether (m=4, n=15)

[0044] Add 262 grams (1 mole) of dodecylphenol and 11.8 grams of calcium oxide catalyst to a reactor equipped with a condensing device, a stirring device and a gas disperser, and the same as [Example 1] to obtain a highly active and selective Compound type calcium oxide alkoxylation catalyst reaction liquid system, heat the system temperature to 80~90℃, turn on the vacuum system, dehydrate under high vacuum for 2 hours, then purge with nitrogen 3~4 times to adjust the reaction temperature of the system Slowly feed 176 grams (4 moles) of ethylene oxide at 140°C, and control the pressure to ≤0.50MPa. After the ethylene oxide reaction is over, slowly feed 870 grams (15 moles) of propylene oxide at 140°C. Control pressure ≤0.50MPa. After the reaction, the system was purged with nitrogen, and after cooling, it was neutralized and dehydrated to obtain 1240.0 grams of dodecylphenol polyoxyethylen...

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Abstract

The invention relates to a phenol ether sulfonate oil-based emulsifier and a preparation method thereof, and aims to solve the problems that in the prior art the kinds of emulsifier for oil-based drilling fluid are few, the emulsifying performance of the conventional emulsifiers is bad, and the salt resistant performance and temperature resistant performance of the conventional emulsifier are not good. The emulsifier can be used as an oil-based drilling fluid emulsifier, and the formed oil-based drilling fluid can be applied to special wells with large displacements in high water sensitive and high temperature ground layers and horizontal wells in the sea in order to fulfill the special needs. The molecular formula of the phenol ether sulfate is represented in the description, wherein the R represents a C1-C20 alkyl group or a C1-C20 cumyl group represented in the description; M can be an ion of hydrogen, calcium, magnesium, barium, zinc, aluminum, and iron; m is the sum of ethoxyl (EO) groups, and can be any integer in a range of 0 to 10; n is the sum of propoxyl (PO) groups, and can be any integer in a range of 0 to 40; and x can be any integer in a range of 1 to 3.

Description

Technical field [0001] The invention relates to a phenol ether sulfonate oil-based emulsifier and a preparation method. Background technique [0002] With the continuous reduction of oil reserves and difficulties in exploitation, countries around the world have increased their investment in the exploration and development of deep-seated oil and gas resources. The development of new oil reservoirs has become an urgent requirement for the development of major oil companies today. my country’s unproven oil and gas resources are mainly distributed in the Tarim, Junggar, Qaidam, Tuha, Sichuan and other basins. 73% of their resources are buried in deep layers and the underground conditions are extremely complex. Therefore, deep and ultra-deep well oil and gas drilling and supporting facilities The development technology has become a key factor restricting the development of oil and gas resources. As the formation depth increases, the formation temperature of deep wells and ultra-deep w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/338C08G65/28C07C309/10C07C303/32C09K8/24C09K8/22
Inventor 沈之芹沙鸥陈安猛高磊
Owner CHINA PETROLEUM & CHEM CORP
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