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A kind of polyoxyethylene isomerized tridecyloxypropylamine and its preparation method and application

A technology of tridecyloxypropylamine and polyoxyethylene, applied in the preparation of amino hydroxyl compounds, chemical instruments and methods, and the preparation of organic compounds, can solve the problem of high temperature and surfactant prices that are difficult to adapt to low-permeability reservoirs Expensive, little application value and other problems, to achieve the effect of improving the balance of hydrophilic and lipophilic, increasing the feasibility of application, and improving the effect

Active Publication Date: 2020-05-08
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relying on the Jiamin effect of these foams, the intrusion of gas can be effectively suppressed, but this technology has the following disadvantages: first, the injection pressure is often high during the process of transferring gas after water injection, and second, the injected water may affect the CO 2 Contact with Crude Oil
In addition to fluorine-containing and silicon-containing surfactants, only specially designed ionic surfactants, such as bis(3,5,5-trimethyl-1-hexyl) sodium sulfosuccinate (AOT4 for short), 1, 2,3-tris(2′,2′-dimethylpropoxycarbonyl)-propane-1-sodium sulfonate (TC14 for short) only in CO 2 There is a certain solubility in surfactants, but these surfactants are expensive and have little application value in oilfield enhanced recovery
Although non-ionic surfactants show certain gas solubility, their cloud point is generally lower than 80°C, which makes it difficult to adapt to the higher temperature of low-permeability reservoirs.

Method used

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  • A kind of polyoxyethylene isomerized tridecyloxypropylamine and its preparation method and application
  • A kind of polyoxyethylene isomerized tridecyloxypropylamine and its preparation method and application
  • A kind of polyoxyethylene isomerized tridecyloxypropylamine and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This implementation provides a kind of preparation method of polyoxyethylene isomeric tridecyloxypropylamine, it comprises the following steps:

[0038]Step 1: Weigh 500g (2.50mol) isomeric tridecyl alcohol and place it in a three-necked flask with a capacity of 1L, add 0.25g potassium hydroxide as a catalyst, heat at 120°C for 1 hour in an oil bath under low-speed stirring; then heat at 45°C Under water bath conditions, 132.3 g (2.625 mol) of acrylonitrile was added dropwise with a dropping funnel under rapid stirring, and the titration was completed in about three and a half hours, and the reaction was continued for half an hour, and the generated product was isotridecyl ether nitrile;

[0039] Among them, the isomeric tridecyl alcohol was purchased from Haian Petrochemical Plant in Jiangsu Province. The isomeric tridecanol H NMR spectrum showed that its methylated hydrogen accounted for 45.7%, and its highly branched structure alcohol accounted for 70.56%. Figure suc...

Embodiment 2

[0047] This implementation provides a kind of preparation method of polyoxyethylene isomeric tridecyloxypropylamine, it comprises the following steps:

[0048] Step 1: Weigh 500g (2.50mol) isomeric tridecyl alcohol and place it in a three-necked flask with a capacity of 1L, add 0.25g potassium hydroxide as a catalyst, heat at 120°C for 1 hour in an oil bath under low-speed stirring; then heat at 45°C Under water bath conditions, 132.3 g (2.625 mol) of acrylonitrile was added dropwise with a dropping funnel under rapid stirring, and the titration was completed in about three and a half hours, and the reaction was continued for half an hour, and the generated product was isotridecyl ether nitrile;

[0049] Among them, the isomeric tridecyl alcohol was purchased from Haian Petrochemical Plant in Jiangsu Province. The isomeric tridecanol H NMR spectrum showed that its methylated hydrogen accounted for 45.7%, and its highly branched structure alcohol accounted for 70.56%. Figure su...

Embodiment 3

[0056] This implementation provides a kind of preparation method of polyoxyethylene isomeric tridecyloxypropylamine, it comprises the following steps:

[0057] Step 1: Weigh 500g (2.50mol) isomeric tridecyl alcohol and place it in a three-necked flask with a capacity of 1L, add 0.25g potassium hydroxide as a catalyst, heat at 120°C for 1 hour in an oil bath under low-speed stirring; then heat at 45°C Under water bath conditions, 132.3 g (2.625 mol) of acrylonitrile was added dropwise with a dropping funnel under rapid stirring, and the titration was completed in about three and a half hours, and the reaction was continued for half an hour, and the generated product was isotridecyl ether nitrile;

[0058] Among them, the isomeric tridecyl alcohol was purchased from Haian Petrochemical Plant in Jiangsu Province. The isomeric tridecanol H NMR spectrum showed that its methylated hydrogen accounted for 45.7%, and its highly branched structure alcohol accounted for 70.56%. Figure su...

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Abstract

The invention provides polyoxyethylene isomeric tridecane oxypropylamine as well as a preparation method and application thereof. The structural formula of the polyoxyethylene isomeric tridecane oxypropylamine is shown as a formula (1), wherein n1 is 1 to 5 and n2 is 1 to 5. The polyoxyethylene isomeric tridecane oxypropylamine provided by the invention is a novel branched non-ionic surfactant which has the advantages that the affinity between an alkyl chain in a molecular structure and a non-polar solvent is improved, the hydrophile-lipophile balance of the surfactant is improved, applicationfeasibility of the surfactant is improved and the application prospect is relatively high; the surfactant can stabilize foam after water is protonized in stratum, thereby inhibiting channeling of CO2in a water layer, improving the CO2 flooding effect and realizing the effect of inhibiting gas channeling. (The formula is shown in the description).

Description

technical field [0001] The invention belongs to the technical field of oil exploitation, and relates to a polyoxyethylene isotridecyloxypropylamine and a preparation method and application thereof. Background technique [0002] Due to the difficulty of water injection in low-permeability reservoirs, formation energy cannot be effectively replenished. In this case, gas injection can be used to enhance oil recovery. Field tests show that the apparent air absorption index during gas injection can be more than 7 times that of the corresponding index of water injection, which shows that gas injection has great application potential in the development of low permeability reservoirs. The gas injected into the formation can choose CO 2 , N 2 even air, but due to CO 2 Miscible with underground crude oil, and inject CO generated during industrial production 2 The purpose of underground storage can be realized at the same time, so CO 2 Gas flooding is currently the most widely us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C217/08C07C213/04C09K8/594C09K8/584
CPCC07C217/08C09K8/584C09K8/594
Inventor 葛际江张旋蒋平
Owner PETROCHINA CO LTD
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