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

A salt and high temperature resistant scale inhibitor and preparation method thereof

A technology of high temperature resistance and antiscalant, which is applied in chemical instruments and methods, descaling and water softening, complex/solubilizing agent treatment, etc. It can solve the problems of shortening oil field life, difficult to remove, and changes in thermodynamic conditions, etc., and achieve raw materials Low cost, high concentration and strong dispersion effect

Inactive Publication Date: 2017-03-01
SOUTHWEST PETROLEUM UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Oilfield scaling has become a serious problem that affects oilfield production order and shortens oilfield life. Oilfield scaling is caused by the combined action of many factors. In summary, there are three main causes: incompatibility of chemical properties, changes in thermodynamic conditions and adsorption ;Among various types of scale, barium sulfate scale is the most difficult type of oilfield scale to remove because of its dense structure and generally insoluble in acid; currently there is no scale inhibitor for barium sulfate

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
  • A salt and high temperature resistant scale inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific examples.

[0020] Take by weighing 188g maleic anhydride, 68g acrylic acid, 40g vinyl acetate, 4g2-acrylamide-2-methylpropanesulfonic acid, 40g ammonium persulfate and 40g distilled water; then take maleic anhydride and place it in a beaker, Add 25g of distilled water, and after the maleic anhydride solid is completely dissolved, pour the above solution into a four-neck flask; take acrylic acid, vinyl acetate, 2-acrylamide-2-methylpropanesulfonic acid and 5g of distilled water to make a mixed Solution, move the mixed solution into a constant pressure separatory funnel; take ammonium persulfate and 10g distilled water to make an ammonium persulfate solution; place the maleic anhydride solution in a water bath and heat it to 60°C, and add acrylic acid dropwise at the same time , vinyl acetate, distilled aqueous solution of 2-acrylamide-2-methylpropanesulfonic acid, and ammonium persulfate ...

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
scale inhibition rateaaaaaaaaaa
scale inhibition rateaaaaaaaaaa
scale inhibition rateaaaaaaaaaa
Login to View More

Abstract

The invention discloses a salt-tolerant and high-temperature-resistant antisludging agent. The agent is composed of, by weight, 49.5% of maleic anhydride, 18.0% of crylic acid, 10.5% of vinyl acetate, 1.0% pf 2-acrylamido-2-methylpropane sulfonic acid, 10.5% of ammonium persulfate and 10.5% of distilled water. The prepared antisludging agent is resistant to salt and high temperature, high in dispersion effect, high in use concentration and high in adaptability to the pH value.

Description

technical field [0001] The invention relates to a scale inhibitor and a preparation method thereof, in particular to a salt-resistant and high-temperature resistant scale inhibitor and a preparation method thereof. Background technique [0002] Oilfield scaling has become a serious problem that affects oilfield production order and shortens oilfield life. Oilfield scaling is caused by the combined action of many factors. In summary, there are three main causes: incompatibility of chemical properties, changes in thermodynamic conditions and adsorption ; Among various types of scale, barium sulfate scale is the most difficult to remove because of its dense structure and generally insoluble in acid; currently there is no scale inhibitor for barium sulfate. Contents of the invention [0003] The invention provides a scale inhibitor capable of effectively preventing the generation of barium sulfate scale. [0004] The technical scheme adopted in the present invention is: a sal...

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 Patents(China)
IPC IPC(8): C02F5/10C02F5/12C02F5/08
Inventor 罗志锋刘平礼唐翔宇李年银张楠林袁学芳赵立强刘举李骏
Owner SOUTHWEST PETROLEUM UNIV
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