Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Aryl alkyl polyoxyethylene ether sulphobetaine surfactant as well as preparation method and application thereof

A technology of aryl alkyl polyoxyethylene ether and sulfobetaine, which is applied in transportation and packaging, chemical instruments and methods, drilling compositions, etc., can solve the problems of poor adaptability, increased difficulty in demulsification and dehydration of heavy oil, To deal with problems such as increased capacity, to achieve the effect of reducing interfacial tension, good application prospects, and increasing swept volume

Active Publication Date: 2015-03-11
PETROCHINA CO LTD
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adaptability of conventional emulsified viscosity reducers is poor. Usually, one viscosity reducer is only suitable for one type of heavy oil, and a large amount of water needs to be added during production, which requires the formed emulsion to have a certain stability, resulting in The difficulty of demulsification and dehydration of heavy oil increases, and the processing capacity increases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aryl alkyl polyoxyethylene ether sulphobetaine surfactant as well as preparation method and application thereof
  • Aryl alkyl polyoxyethylene ether sulphobetaine surfactant as well as preparation method and application thereof
  • Aryl alkyl polyoxyethylene ether sulphobetaine surfactant as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] This embodiment provides a kind of N-[phenyl octadecyl polyoxyethylene ether (x)-2-hydroxypropyl]-N,N-dimethyl sulfobetaine amphoteric surfactant, its synthetic method Include the following steps:

[0079] (1) Fu's alkylation reaction:

[0080] In a sealed reactor, use methanesulfonic acid as a catalyst, add 3.5mol of benzene, after the temperature rises to 100°C, start to drop 1mol of methyl oleate, the dropping time is controlled at 6h, after the dropping is completed, continue to react for 3h, Cool to room temperature, stand to separate layers, rinse with ice water three times, separate the aqueous solution of the catalyst in the lower layer, recover and store, continue to wash the upper layer with ice water three times, and dry in turn. Under the conditions of 20Pa and 220°C, molecular distillation obtains benzene methyl octadecanoate.

[0081] (2) Hydrogenation reduction reaction:

[0082] Under the reaction conditions of 200 ° C and 25-30 MPa, the reaction prod...

Embodiment 2

[0098] This embodiment provides N-[tolyl octadecyl polyoxyethylene ether (x)-2-hydroxypropyl]-N,N-dimethyl sulfobetaine amphoteric surfactant, and its synthesis method includes the following step:

[0099] (1) Fu's alkylation reaction:

[0100] In a sealed reactor, use methanesulfonic acid as a catalyst, add 3.5mol of toluene, after the temperature rises to 110°C, start to add 1.1mol of methyl oleate dropwise, the dropping time is controlled at 7h, after the dropwise addition, continue to react for 3h , cooled to room temperature, left to separate layers, rinsed with ice water three times, separated the aqueous solution of the catalyst in the lower layer, recovered and stored, the upper liquid was washed three times with ice water, dried in turn, and molecularly distilled at 20Pa and 220°C to obtain tolyl methyl octadecanoate.

[0101] (2) Hydrogenation reduction reaction:

[0102] Under the reaction conditions of 250°C and 25-30MPa, the reaction product of step (1) tolyl o...

Embodiment 3

[0115] This embodiment provides N-[m-xylyl octadecyl polyoxyethylene ether (x)-2-hydroxypropyl]-N,N-dimethyl sulfobetaine amphoteric surfactant, its synthesis method Include the following steps:

[0116] (1) Fu's alkylation reaction:

[0117] In a sealed reaction kettle, use methanesulfonic acid as a catalyst, add 3.5mol m-xylene, after the temperature rises to 120°C, start to add 1.05mol methyl oleate dropwise, the dropping time is controlled at 7h, after the dropping is completed, continue React for 4 hours, cool to room temperature, let stand to separate layers, rinse with ice water three times, separate the aqueous solution of the catalyst in the lower layer, recover and store, continue to wash the upper layer liquid with ice water three times, dry sequentially, and molecularly distill at 30Pa and 230°C to obtain Methyl m-xylyl octadecanoate.

[0118] (2) Hydrogenation reduction reaction:

[0119] Under the reaction conditions of 200-350°C and 25-30MPa, the reaction pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Apparent viscosityaaaaaaaaaa
Login to View More

Abstract

The invention provides an aryl alkyl polyoxyethylene ether sulphobetaine surfactant as well as a preparation method and application thereof. The aryl alkyl polyoxyethylene ether sulphobetaine surfactant has the structural formula as shown in the specification, wherein R is phenyl, cresyl, dimethylphenyl or ehtylphenyl; m and n are selected from integers of 0 to 15 respectively, the sum of m and n is 15, and integer x is an integer of 1 to 30. The invention further provides a preparation method of the aryl alkyl polyoxyethylene ether sulphobetaine surfactant and application of the aryl alkyl polyoxyethylene ether sulphobetaine surfactant to tertiary oil recovery. An aqueous solution of the aryl alkyl polyoxyethylene ether sulphobetaine surfactant provided by the invention has relatively high viscosity, can improve the swept volume, can reduce the interfacial tension, has good emulsifying performance and can reduce the viscosity of high-viscosity crude oil, so that the recovery ratio is improved; therefore, the aryl alkyl polyoxyethylene ether sulphobetaine surfactant has a good application prospect in the tertiary oil recovery.

Description

technical field [0001] The invention relates to an arylalkyl polyoxyethylene ether sulfobetaine surfactant for oil displacement, a preparation method thereof and an application in oil recovery, belonging to the technical field of oil recovery. Background technique [0002] Reservoirs with low permeability (1-200mD) and high viscosity (20-500mPa·s) are rich in resources. For example, the proven resources in the periphery of Daqing Changyuan and the Jilin exploration area have reached more than 3 billion tons. Taking Fuyu Oilfield in Jilin as an example, low-permeability and high-viscosity crude oil reserves are abundant, with proven geological reserves of about 200 million tons. Oilfield development The viscosity of crude oil tends to increase, making development more difficult. [0003] Due to the high viscosity of crude oil, the development effect is poor if the method of simple water injection or gas injection is used. How to effectively improve the fluidity of crude oil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01F17/04B01F17/42C09K8/584C08G65/337C08G65/333C08G65/334C08G65/28C09K23/04C09K23/42
Inventor 张帆王强罗文利王红庄朱友益
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com