Temperature-resistant thick oil viscosity-reducing polymer as well as preparation method and application thereof

A technology of polymer and polymer solution, applied in the direction of drilling composition, chemical instruments and methods, etc., can solve the problems of poor affinity and temperature resistance of heavy oil viscosity reducer

Active Publication Date: 2021-05-11
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the existing heavy oil viscosity reducer cannot have good emulsification performance, heavy oil affinity performance and poor temperature resistance, the present invention proposes a temperature resistant heavy oil viscosity reducer and its preparation method and application

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
  • Temperature-resistant thick oil viscosity-reducing polymer as well as preparation method and application thereof
  • Temperature-resistant thick oil viscosity-reducing polymer as well as preparation method and application thereof
  • Temperature-resistant thick oil viscosity-reducing polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] In yet another specific embodiment of the present invention, a method for preparing the above-mentioned temperature-resistant heavy oil viscosity-reducing polymer is provided, including:

[0047] (1) Under an inert atmosphere, sequentially add acrylamide monomer, sodium acrylate monomer, hydrophobic monomer, and temperature-resistant functional monomer into water, and stir until clear to obtain solution I;

[0048] (2) Continue to add micro-crosslinking monomer and temperature stabilizer to solution I, stir until all dissolve to obtain solution II;

[0049] (3) Add the initiator into the solution II after heating up, stir, stop stirring when the solution becomes viscous, remove the inert atmosphere, and seal the reaction.

[0050] In yet another specific embodiment of the present invention, in step (1), the inert atmosphere is nitrogen;

[0051] In yet another specific embodiment of the present invention, in step (3), the heating temperature is controlled to be 50-70°C...

no. 1 example

[0059] A method for preparing a temperature-resistant heavy oil viscosity-reducing polymer, comprising the steps of:

[0060] (1) Raw materials: acrylamide 5.544g; sodium acrylate monomer 1.368g; hydrophobic monomer 0.465g; temperature-resistant functional monomer 0.311g; initiator 0.0023g; micro-crosslinking monomer 0.0384g; temperature stabilizer 0.0154g; Distilled water 23.064g.

[0061] Wherein: the hydrophobic monomer is selected from cetyl dimethyl allyl ammonium chloride; the temperature-resistant functional monomer is selected from 2-acrylamide-2-methylpropanesulfonic acid; the initiator is selected from azobisisobutylamidine hydrochloride; micro-crosslinking monomer selection of triallyl urate; temperature stabilizer selection of sodium thiosulfate.

[0062] (2) Weigh acrylamide, sodium acrylate, hexadecyldimethylallyl ammonium chloride, 2-acrylamide-2-methylpropanesulfonic acid respectively according to the above-mentioned content, under the condition of feeding nit...

no. 2 example

[0065] A kind of preparation method of common amphiphilic polymer, comprises steps:

[0066] (1) Raw materials: acrylamide 5.57978g; sodium acrylate monomer 1.44g; hydrophobic monomer 0.465g; initiator 0.0022g; deionized water 22.4543g.

[0067] Wherein: the hydrophobic monomer is selected from cetyl dimethyl allyl ammonium chloride; the initiator is selected from azobisisobutylamidine hydrochloride.

[0068] (2) Weigh acrylamide, sodium acrylate, and cetyldimethylallyl ammonium chloride respectively according to the above contents, and under the condition of feeding nitrogen, successively mix acrylamide, sodium acrylate, cetyldimethylammonium Allyl ammonium chloride was added to water and stirred at high speed until the solution became clear.

[0069] (3) Raise the temperature to 55°C, add the initiator azobisisobutylamidine hydrochloride into the solution in (2), keep stirring at a high speed, stop stirring when the solution becomes viscous, remove the nitrogen gas, seal an...

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 provides a temperature-resistant thick oil viscosity-reducing polymer as well as a preparation method and application thereof, and belongs to the technical field of thick oil viscosity-reducing agents. The temperature-resistant thick oil viscosity-reducing polymer is prepared from the following raw materials: an acrylamide monomer, a sodium acrylate monomer, a hydrophobic monomer, a temperature-resistant functional monomer, a micro-crosslinking monomer, an initiator, a temperature stabilizer and water. The temperature-resistant thick oil viscosity-reducing polymer prepared by the invention not only has good emulsifying performance and thick oil affinity performance, but also has good temperature resistance, is particularly suitable for high-temperature thick oil reservoir development, and has good practical production and application values.

Description

technical field [0001] The invention belongs to the technical field of heavy oil viscosity-reducing agents, and in particular relates to a temperature-resistant heavy-oil viscosity-reducing polymer and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] my country is rich in heavy oil resources, accounting for more than one-third of my country's oil reserves, and has huge resource potential. Because heavy oil is rich in colloids, asphaltenes and waxes, the density and viscosity of heavy oil are high, and the fluidity is poor, which makes the production of heavy oil more difficult. The key to solving the problem of heavy oil production ...

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): C08F220/56C08F220/06C08F220/58C08F226/02C08F226/06C09K8/588C09K8/88
CPCC08F220/56C09K8/588C09K8/882C08F220/06C08F220/585C08F226/02C08F226/06
Inventor 杨红斌康万利范宇恒李哲范海明黄贤斌张向峰刘同敬吴飞鹏张亮
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap