Laurinol alkyl ether, as well as preparation method and drilling fluid thereof

A technology of lauryl alcohol alkyl ether and lauryl alcohol, which is applied in the directions of ether preparation, chemical instrument and method, drilling composition, etc., can solve problems such as poor biodegradation performance, application limitation, environmental toxicity, etc., and achieve good product quality , mild conditions, good inhibitory effect

Inactive Publication Date: 2017-10-31
SINOPEC SSC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the base fluids currently used to prepare synthetic-based drilling fluids are mainly chemical products such as mineral oil,

Method used

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  • Laurinol alkyl ether, as well as preparation method and drilling fluid thereof
  • Laurinol alkyl ether, as well as preparation method and drilling fluid thereof
  • Laurinol alkyl ether, as well as preparation method and drilling fluid thereof

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preparation example Construction

[0030] The invention provides a preparation method of the lauryl alkyl ether described in the above technical scheme, comprising:

[0031] Under the action of catalyst, react lauryl alcohol, alkyl reagent and basic compound to obtain lauryl alcohol alkyl ether;

[0032] The number of alkyl groups in the alkyl reagent is 1-10.

[0033] In the present invention, the temperature of the reaction is preferably 60°C to 120°C, more preferably 80°C to 100°C, and most preferably 85°C to 95°C. In the present invention, the reaction time is preferably 18 hours to 24 hours, and more preferably 20 hours to 22 hours. In the present invention, preferably lauryl alcohol, an alkyl reagent, a basic compound and a catalyst are added to the reaction kettle, mixed and then reacted to obtain lauryl alcohol alkyl ether. In the present invention, the reactor is preferably a reactor with stirring, condensing and heating equipment. The present invention preferably conducts the reaction under stirrin...

Embodiment 1

[0056] Add 1mol lauryl alcohol, 0.5mol chloroethane, 0.5mol sodium hydroxide and 0.025mol 1-butyl-3-methylimidazole hexafluorophosphoric acid ionic liquid catalyst into the reactor with stirring, condensation and heating device, stir and mix Homogeneous, reacted at 60°C and 200rpm for 12h, then lowered to room temperature to obtain a crude solution;

[0057] Add 1mol n-hexane extractant in three times to the above-mentioned crude solution, and the addition amount of each time is 0.33mol. After mixing evenly, let stand, the obtained solution is divided into two layers; use a separatory funnel with a capacity of 1000mL to separate to obtain The lower layer is 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, and the upper layer is lauryl ether-n-hexane solution; the 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid can be directly used in the lower layer. For the preparation of one-time lauryl alcohol alkyl ether, the lauryl alcohol ethyl ether-n-hexane so...

Embodiment 2

[0061] 1mol lauryl alcohol, 1.5mol chloropropane, 1.5mol potassium hydroxide and 0.25mol 1-hexyl-3-methylimidazole hexafluorophosphoric acid ionic liquid catalyst are added in the reactor with stirring, condensation and heating device, and stirring and mixing are uniform, The reaction was carried out at 120 °C and 300 rpm for 24 h, and then lowered to room temperature to obtain a crude solution;

[0062] A total of 1.5mol of cyclohexane extractant was added to the above-mentioned crude solution in three times, and the amount of each addition was 0.5mol. After mixing, the resulting solution was left standing, and the resulting solution was divided into two layers; Separation, the obtained lower layer is 1-hexyl-3-methylimidazolium hexafluorophosphoric acid ionic liquid, and the upper layer is lauryl alcohol propyl ether-cyclohexane solution; the 1-hexyl-3-methylimidazolium hexafluorophosphoric acid ionic liquid can be directly For the next preparation of lauryl alcohol alkyl et...

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Abstract

The invention provides laurinol alkyl ether, which has a structure as shown in a formula I, wherein R is alkyl having the number of carbon atoms of 1-10. The invention further provides a method for preparing laurinol alkyl ether, which comprises the following steps: enabling laurinol, alkyl reagent and alkaline compound to react in the presence of a catalyst to obtain the laurinol alkyl ether. A drilling fluid is prepared from the laurinol alkyl ether by adopting the technical scheme. The laurinol alkyl ether has excellent inhibition, low viscosity, strong temperature resistance, hydrolytic stability and biodegradability, and can be used as a basic fluid for synthetic base drilling fluid. The preparation method has high reaction yield and good product quality, is simple in process and mild in condition, has a non-toxic, efficient and environment-friendly preparation process, and can be popularized and applied to catalytic esterification reactions.

Description

technical field [0001] The invention relates to the technical field of petroleum industry, in particular to a lauryl alkyl ether, a preparation method thereof and a drilling fluid. Background technique [0002] Base fluid is the main component of drilling fluid, and its performance indicators determine most of the performance indicators of drilling fluid, such as flash point, viscosity, freezing point and biological toxicity. With the increasing number of deep and ultra-deep wells, horizontal wells, and highly deviated directional wells being drilled, the probability of encountering strong water-sensitive formations is getting higher and higher. widely used. However, the base fluids currently used to prepare synthetic-based drilling fluids are mainly chemical products such as mineral oil, olefins, alkylbenzenes, and linear paraffins, which have certain environmental toxicity and poor biodegradability. has been restricted. With the increasingly strict national environmenta...

Claims

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Application Information

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IPC IPC(8): C07C43/04C07C41/01C09K8/22
CPCC07C41/01C07C43/04C09K8/22
Inventor 单海霞何焕杰王中华徐勤马雅雅郭民乐
Owner SINOPEC SSC
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