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

Alpha-olefin polymer drag-reducing suspension and its prepration method

An olefin polymer and polymer technology, applied in the field of polymer compound composition and pipeline system, can solve the problems that the pipeline operation cannot be applied to the product oil pipeline, the injection process is complicated, and the static stability is poor, so as to achieve static stability Good, simple process, low cost effect

Inactive Publication Date: 2004-10-13
PIPECHINA SOUTH CHINA CO
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still has the disadvantages of poor static stability and easy delamination, which leads to cumbersome on-site operation and relatively complicated injection process; in addition, due to its complex chemical composition, it can only be used for drag reduction in crude oil pipelines, because it pollutes refined oil and affects Pipeline operation has adverse effects and cannot be applied to product oil pipelines

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The suspending base liquid is prepared from polysilicone resin, organosilicon resin or organosilicon modified resin and xylene. The ratio of polysilicon resin to silicone resin or silicone modified resin is 1:1 (weight ratio), and the active ingredient content is 50%. The ratio of small polymer blocks (block diameter less than 1 cm) to the suspension base liquid is 1:2 (weight ratio), mixed evenly, and slowly added to the colloid mill. When crushing for the first time, the gap between the colloid mill stator and rotor is slightly larger to facilitate feeding. After primary powder, enter the colloid mill for more than two times, and gradually reduce the gap between the stator and the rotor each time until a fine uniform suspension fluid is obtained. The crushing fineness of the final drag-reducing polymer can be less than 50 microns, and the viscosity of the suspension is less than 2000 centipoise.

Embodiment 2

[0011] The suspending base liquid is composed of allyl alcohol polyoxyalkyl ether and polyacrylic acid isobutyl ester in a ratio of 3:1 (by weight), and they are mixed and stirred evenly. The ratio of the small polymer block (block diameter less than 1 cm) to the suspending base liquid is 1:1 (weight ratio). The pulverizing procedure is the same as in Example 1.

Embodiment 3

[0013] The suspending base liquid is a mixture of polymer carboxylic acid and silicone, which is mixed with silicone resin, and the mixing ratio is 1:1 (weight ratio). The ratio of the small polymer block (block diameter less than 1 cm) to the suspending base liquid is 1:3 (weight ratio). The pulverizing procedure is the same as in Example 1.

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 present invention relates to an alpha-olefin drag-reducing polymer suspending liquid for oil pipeline and its preparation method. Alpha-olefin polymer small block and oil-soluble suspension base liquor in which the alpha-olefin polymer is not dissolved are mixed according to the weight ratio of 1:1-1:4, then fed into colloid mill and ground to obtain the processing fineness of 2-50 microns. Said invention drag-reducing polymer suspending liquid has high concentration, low viscosity and good standing stability, also can be used in finished product oil pipeline.

Description

[0001] Field [0002] The invention relates to an α-olefin polymer drag-reducing suspension used for oil pipeline drag-reducing and a preparation method thereof. Compositions and piping systems involving polymer compounds. Background technique [0003] For the drag reducer to be injected into the pipeline and produce the best effect, it must be fluid and low viscosity. The initial drag reducer polymer has a high viscosity, which is not only difficult to inject, but also takes a long time to dissolve in the oil, has low drag reduction efficiency, and is also very unsafe for storage and transportation. In recent years, domestic and foreign countries have been making unremitting efforts to solve this problem. The more mature one is to make the drag reducer into a slurry system. The basic technical idea is to pulverize the drag reducer polymer into tiny powder at ultra-low temperature, and add it to a mixture of water or alcohol, thickener, surfactant, etc. , dispersant, and 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): C08J3/02C08L23/00F17D1/16
Inventor 税碧垣关中原李春漫常维纯
Owner PIPECHINA SOUTH CHINA CO
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