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

Methyl-bis-perfluorodecylsilicon-polyethoxy-naphthalenesulfonic acid sodium salt polynary compounds as well as preparation method and application thereof

A technology of fluorodecylsilicon and polyethoxy, which is applied in the field of methyl-bisperfluorodecylsilicon-polyethoxy-sodium naphthalenesulfonate multi-component compound and its preparation field, can solve the problem of loss, chromatographic separation, component Synergistic weakening and other problems, to achieve the effect of good foam stabilization effect, simple preparation method, foaming effect promotion

Inactive Publication Date: 2018-09-07
NANJING NORMAL UNIVERSITY
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most of the above-mentioned oil displacement agents are mixed reagents. Migration in the formation will cause differences in migration speed due to differences in molecular structure and polarity, resulting in chromatographic separation, resulting in weakened or even lost synergistic effects of various components.

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
  • Methyl-bis-perfluorodecylsilicon-polyethoxy-naphthalenesulfonic acid sodium salt polynary compounds as well as preparation method and application thereof
  • Methyl-bis-perfluorodecylsilicon-polyethoxy-naphthalenesulfonic acid sodium salt polynary compounds as well as preparation method and application thereof
  • Methyl-bis-perfluorodecylsilicon-polyethoxy-naphthalenesulfonic acid sodium salt polynary compounds as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The methyl-bisperfluorodecyl silicon-polyethoxy-sodium naphthalenesulfonate compound of the present invention has a structural formula of:

[0026]

[0027] Among them, n=12-18.

[0028] The preparation method includes the following steps: first, 100 g of perfluorodecane and 14.5 g of monomethyldifluorosilane are placed in a reactor, protected by nitrogen gas, and stirred and reacted at 60 ° C for 1.5 h; secondly, concentrated sulfuric acid is added to the system , heat up to 150°C, slowly add 60g of ethylene oxide, and continue the reaction for 1.5h; again, cool down to about 100°C, add 22g of p-hydroxynaphthalenesulfonic acid to react for 1.5h; finally add sodium hydroxide to adjust the pH to 9, that is Multiple compounds of the invention can be prepared.

[0029] When the multi-component compound prepared in this example is applied to oil displacement, the surface observation, foaming and foam stabilizing properties of its oil-based foam are characterized, and th...

Embodiment 2

[0031] The methyl-bisperfluorodecyl silicon-polyethoxy-sodium naphthalenesulfonate compound of the present invention has a structural formula of:

[0032]

[0033] Among them, n=6-10.

[0034] The preparation method includes the following steps: first, 100 g of perfluorodecane and 11.5 g of monomethyldifluorosilane are placed in a reactor, protected by nitrogen gas, and stirred at 60°C for 1.5 hours; secondly, concentrated sulfuric acid is added to the system , raise the temperature to 150°C, slowly add 40g of ethylene oxide, and continue the reaction for 1.5h; again, cool down to about 100°C, add 20g of p-hydroxynaphthalenesulfonic acid to react for 1.5h; finally, add sodium hydroxide to adjust the pH value to 8.5, The multi-component compound of the present invention can be obtained.

Embodiment 3

[0036] The methyl-bisperfluorodecyl silicon-polyethoxy-sodium naphthalenesulfonate compound of the present invention has a structural formula of:

[0037]

[0038] Among them, n=12-16.

[0039] The preparation method includes the following steps: first, 100 g of perfluorodecane and 11.5 g of monomethyldifluorosilane are placed in a reactor, protected by nitrogen, and stirred at 60 ° C for 1.5 h; secondly, concentrated sulfuric acid is added to the system , heat up to 150°C, slowly add 55g of ethylene oxide, and continue the reaction for 1.5h; again, cool down to about 100°C, add 21g of p-hydroxynaphthalenesulfonic acid to react for 1.5h; finally, add sodium hydroxide to adjust the pH value to 8, The multi-component compound of the present invention can be obtained.

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

No PUM Login to View More

Abstract

The invention discloses methyl-bis-perfluorodecylsilicon-polyethoxy-naphthalenesulfonic acid sodium salt polynary compounds as well as a preparation method and application thereof. The polynary compounds are formed by compounding perfluorodecane, monomethyl difluorosilane, ethylene oxide and p-hydroxynaphthalenesulfonic acid; and the preparation method comprises the following steps: mixing the perfluorodecane and the monomethyl difluorosilane, performing acidification, performing heating to temperature of 150-170 DEG C, adding the ethylene oxide, performing a reaction, adding the p-hydroxynaphthalenesulfonic acid, and finally adjusting a pH to 8-9.5, so as to obtain one polynary compound. The polynary compounds disclosed by the invention are used in oil fields for foam flooding; the polynary compounds not only can be foamed simply and efficiently, but also have an excellent foam stabilizing effect, do not have chromatographic separation when being transported in a formation, and especially have an excellent foam flooding effect in low-permeability and water-sensitive oil fields; and the preparation method is simple, and has high operability and low costs.

Description

technical field [0001] The invention belongs to the field of foam oil displacement agents, in particular to a methyl-bisperfluorodecyl silicon-polyethoxy-naphthalene sodium sulfonate multi-component compound and its preparation method and application. Background technique [0002] Foam fluid has been used in the development of oil fields for more than 40 years at home and abroad. Wells, drilling, profile control, water plugging, acidification, cement cementing and fracturing have been applied in many aspects of oil and gas field development, and have achieved positive results. A large number of practices have shown that foam flooding is an important means to protect oil layers, prevent oil layer pollution, and increase oil and gas production. With the continuous improvement of people's recognition of foam technology, foam flooding means and foam flooding agent will become one of the main technologies of tertiary oil recovery. There are a large number of low-permeability an...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/12C08G65/26C08G65/334C09K8/584
CPCC09K8/584C07F7/127C08G65/2639C08G65/3346
Inventor 沈健赵越章峻侯庆锋王达炜金锐杨仲斌何磊付磊冯福玲莫宏
Owner NANJING NORMAL UNIVERSITY
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