Water-dispersible polymer crude oil viscosity reducer as well as preparation method and application thereof

A crude oil viscosity reducer and polymer technology, applied in the field of materials, can solve the problems of large application limitations, poor high temperature resistance, etc., and achieve good viscosity reduction effect, good emulsification and solubilization effect

Active Publication Date: 2019-11-22
GUANGZHOU UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing polymer viscosity reducer has poor hig

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
  • Water-dispersible polymer crude oil viscosity reducer as well as preparation method and application thereof
  • Water-dispersible polymer crude oil viscosity reducer as well as preparation method and application thereof
  • Water-dispersible polymer crude oil viscosity reducer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1: Preparation of polymer viscosity reducer P1

[0029] In a beaker, weigh 12g of acrylic acid, 1.8g of styrene, 1.8g of vinyl silicone oil (vinyl-terminated at both ends, 5wt% vinyl, viscosity of 1000cP, purchased from Jinan Xingfeilong Chemical Co., Ltd.), 14.4g Octadecyl methacrylate, 0.27g of 2,2'-azobisisobutyronitrile, 15g of solvent n-butanol, stirred until completely dissolved, and then transferred to the dropping funnel. Put 15g of n-butanol and 0.03g of 2,2'-azobisisobutyronitrile into the three-necked flask. At 90°C, add the mixed liquid dropwise to the flask, and control the liquid in the funnel to finish dripping within 1h. After the dripping is completed, continue the constant temperature reaction for 2h. Increase the temperature to 100°C, add 0.15 g of the initiator 2,2'-azobisisobutyronitrile, and continue the reaction at a constant temperature for 1 hour. Cool to 60°C, add 14.83g of N,N-dimethylethanolamine, and react for 1h. After the reaction,...

Example Embodiment

[0030] Example 2: Preparation of polymer viscosity reducer P2

[0031] In a beaker, weigh 12g acrylic acid, 1.8g styrene, 1.8g vinyl silicone oil (5% vinyl, viscosity 1000cP, purchased from Jinan Xingfeilong Chemical Co., Ltd.), 28.8g octadecyl methacrylate, 0.27g 2,2'-azobisisobutyronitrile, 15g solvent n-butanol, stir until completely dissolved, then transfer to the dropping funnel. Put 15g of n-butanol and 0.03g of 2,2'-azobisisobutyronitrile into the three-necked flask. At 90°C, add the mixed liquid dropwise to the flask, and control the liquid in the funnel to finish dripping for about 1 hour. After the dripping is completed, continue constant temperature heating for 2 hours. Increase the temperature to 100°C, add 0.15 g of the initiator 2,2'-azobisisobutyronitrile, and continue the reaction at a constant temperature for 1 hour. Cool to 60°C, add 14.83g of N,N-dimethylethanolamine, and react for 1h. After the reaction is completed, it is cooled to room temperature, and th...

Example Embodiment

[0032] Example 3: Preparation of polymer viscosity reducer P3

[0033] In a three-necked flask, add 12g acrylic acid, 2.0g styrene, 1.8g vinyl silicone oil (5% vinyl, viscosity 1000cP, purchased from Jinan Xingfeilong Chemical Co., Ltd.), 14.4g octadecyl methacrylate, 0.27g initiator azobisisobutyronitrile, 15g solvent n-butanol, stirred until completely dissolved and then transferred to the dropping funnel. Add 15 g of n-butanol and 0.03 g of initiator azobisisobutyronitrile into the three-necked flask. At 90°C, add the mixed liquid dropwise to the flask, and control the liquid in the funnel to finish dripping for about 1 hour. After the dripping is completed, continue constant temperature heating for 2 hours. Increase the temperature to 120°C, add the initiator azobisisobutyronitrile 0.15g again, and continue the reaction at a constant temperature for 7 hours. Cool to 60°C, add 14.83g of N,N-dimethylethanolamine, and react for 1h. After the reaction was completed, it was coo...

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
Viscosityaaaaaaaaaa
Weight average molecular weightaaaaaaaaaa
Number average molecular weightaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of materials, and discloses a water dispersible polymer crude oil viscosity reducer as well as a preparation method and application thereof. The preparation method of the water dispersible polymer crude oil viscosity reducer comprises the following steps: carrying out solution polymerization reaction on acrylic acid, styrene, a methacrylate monomer, vinyl silicone oil and an initiator in a solvent, and then adding an amine neutralizer to carry out neutralization reaction, thus obtaining the water dispersible polymer viscosity reducer, wherein the vinyl silicone oil is terminated by vinyl at two ends; the vinyl silicone oil with vinyl groups at two ends is added so that the viscosity reducer polymer can form a net structure, the water dispersible polymer crude oil viscosity reducer disclosed by the invention has resistance to high temperature, still has good emulsifying and solubilizing capacities on crude oil in a high-temperature environment, has a good viscosity reduction effect, and can be widely applied to the field of petrochemical engineering, in particular to high-temperature oil reservoir exploitation.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a water-dispersed polymer crude oil viscosity reducer and its preparation method and application. Background technique [0002] Due to the large molecular weight and complex composition of heavy oil, the high temperature of heavy oil reservoirs leads to high viscosity and difficulty in production and transportation. The key to its production is to reduce viscosity and improve fluidity. As the largest and most economical chemical viscosity reduction technology, emulsification viscosity reduction technology has been widely used in heavy oil fields all over the world. The polymer viscosity reducer used in it is different from the traditional mixed emulsification viscosity reducer, which has the characteristics of difficult demulsification and dehydration of the produced heavy oil and large processing capacity. It has the advantages of small dosage, low cost and no impact on the processing o...

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): C08F283/12C08F212/08C08F220/06C08F220/18C09K8/588
CPCC08F283/124C09K8/588C09K8/882C08F212/08C08F220/06
Inventor 于丹凤黄建嘉许书瀚吴旭徐秀彬毛桃嫣张振强牛子晗
Owner GUANGZHOU UNIVERSITY
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