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

Triphenylmethane polyether carboxylate, composition and preparation method thereof, and extra-heavy oil and super-heavy oil CO2 exploitation method

A technology of polyether carboxylate and triphenylmethane, which is applied in the fields of extra-heavy oil and super-heavy oil CO2 exploitation, triphenylmethane polyether carboxylate and its composition, can solve the problem of low viscosity reduction efficiency and slow dissolution rate , low solubility and other problems, to achieve the effect of improving the viscosity reduction rate and the dissolved gas-oil ratio

Active Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is that existing extra heavy oil, super heavy oil CO 2 In mining technology due to CO 2 Low viscosity reduction rate of heavy oil caused by low solubility and slow dissolution rate, low oil displacement efficiency and existing heavy oil CO 2 Poor injection of chemical agents for oil displacement, and CO 2 Cooperating with the problem of low viscosity reduction efficiency, a chemical agent composition containing triphenylmethane polyether carboxylate and triphenylmethane polyether carboxylate is provided

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
  • Triphenylmethane polyether carboxylate, composition and preparation method thereof, and extra-heavy oil and super-heavy oil CO2 exploitation method
  • Triphenylmethane polyether carboxylate, composition and preparation method thereof, and extra-heavy oil and super-heavy oil CO2 exploitation method
  • Triphenylmethane polyether carboxylate, composition and preparation method thereof, and extra-heavy oil and super-heavy oil CO2 exploitation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] (a) preparation of triphenylmethane polyether carboxylate:

[0099] 1. Add 292g (1mol) 4,4',4"-trihydroxytriphenylmethane, 4.0g potassium hydroxide to the pressure reactor, and remove the air in the reaction flask by vacuum. N 2 Under protection, the system was heated to 120° C., and 174 g (3 mol) of propylene oxide was slowly introduced to control the pressure to ≤0.20 MPa. After the reaction, the low boilers were removed under reduced pressure, neutralized and dehydrated after cooling to obtain 445.5 g of triphenylmethane polyoxypropylene (n=3) ether, with a yield of 95.6%.

[0100] ②Add 233g (0.5mol) of triphenylmethane polyoxypropylene (n=3) ether, 114g (0.5mol) of myristic acid, 2.0g of sodium bicarbonate into the dry reactor, and remove the oxygen in vacuum. in N 2 Under protection, the system was heated to 220°C and reacted for 3h. After cooling, it was neutralized and dehydrated to obtain 316.8 g of triphenylmethane polyoxypropylene (n=3) ether myristate (m=1...

Embodiment 2

[0106] (a) preparation of triphenylmethane polyether carboxylate:

[0107] 1. Add 292g (1mol) 4 in the pressure reactor, 4 ', 4 "-trihydroxytriphenylmethane, 4.0g potassium hydroxide, vacuum remove the air in the reaction flask. N 2 Under protection, the system was heated to 110° C., and 132 g (3 mol) of ethylene oxide was slowly introduced to control the pressure to ≤0.10 MPa. After the reaction, the low boilers were removed under reduced pressure, neutralized and dehydrated after cooling to obtain 407.9 g of triphenylmethane polyoxyethylene (n=3) ether, with a yield of 96.2%.

[0108] ②Add 212g (0.5mol) triphenylmethane polyoxyethylene (n=3) ether, 114g (0.5mol) myristic acid, 2.0g sodium bicarbonate to the dry reactor, and remove oxygen in vacuum. in N 2 Under protection, the system was heated to 210°C and reacted for 3h. After cooling, it was neutralized and dehydrated to obtain 311.0 g of triphenylmethane polyoxyethylene (n=3) ether myristate (m=1.0) ester, with a yiel...

Embodiment 3

[0114] (a) preparation of triphenylmethane polyether carboxylate:

[0115] 1. Add 292g (1mol) 4 in the pressure reactor, 4 ', 4 "-trihydroxytriphenylmethane, 4.0g potassium hydroxide, vacuum remove the air in the reaction flask. N 2 Under protection, the system was heated to 120° C., and 174 g (3 mol) of propylene oxide was slowly introduced to control the pressure to ≤0.20 MPa. After the reaction, the low boilers were removed under reduced pressure, neutralized and dehydrated after cooling to obtain 445.5 g of triphenylmethane polyoxypropylene (n=3) ether, with a yield of 95.6%.

[0116] ②Add 233g (0.5mol) of triphenylmethane polyoxypropylene (n=3) ether, 114g (0.5mol) of myristic acid, 2.0g of sodium bicarbonate into the dry reactor, and remove the oxygen in vacuum. in N 2 Under protection, the system was heated to 220°C and reacted for 3h. After cooling, it was neutralized and dehydrated to obtain 316.8 g of triphenylmethane polyoxypropylene (n=3) ether myristate (m=1.0)...

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
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses triphenylmethane polyether carboxylate, a composition and a preparation method thereof, and a CO2 exploitation method for extra-heavy oil and super-heavy oil. The triphenylmethane polyether carboxylate has a structure shown in the following formula (I). The composition comprises triphenylmethane polyether carboxylate and an auxiliary agent. The chemical agent composition containing triphenylmethane polyether carboxylate can be directly dissolved in liquid or supercritical CO2 to be injected into an oil reservoir together, the viscosity of super-heavy oil and super-heavy oil is reduced in cooperation with CO2, the CO2 exploitation effect of the super-heavy oil and super-heavy oil is improved, and meanwhile the injection problem of a low-permeability heavy oil reservoir chemical agent is solved.

Description

technical field [0001] The present invention relates to the field of petroleum exploitation, specifically, relate to triphenylmethane polyether carboxylate and composition thereof, preparation method and extra heavy oil and super heavy oil CO 2 mining method. Background technique [0002] Heavy oil generally refers to crude oil with a viscosity greater than 50 mPa.s at the reservoir temperature. According to the viscosity, heavy oil can be further subdivided into three types: ordinary heavy oil (50mPa.s~10000mPa.s), extra heavy oil (10000mPa.s~50000mPa.s) and super heavy oil (>50000mPa.s). [0003] my country is rich in heavy oil resources, and onshore heavy oil and asphalt resources account for more than 20% of the country's total oil resources. With the reduction of conventional crude oil production, heavy oil production is becoming more and more important. Due to the characteristics of high colloid and asphaltene content, high underground viscosity, and poor fluidit...

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): C08G65/28C08G65/332E21B43/22E21B43/16C09K8/588C09K8/594C09K8/88C07C69/30C07C67/08C07C41/03C07C43/23
CPCC08G65/2612C08G65/3322E21B43/164E21B43/16C09K8/588C09K8/594C09K8/885C07C69/30C07C67/08C07C41/03C07C43/23
Inventor 吴春芳李应成沈之芹何秀娟裘鋆
Owner CHINA PETROLEUM & CHEM CORP
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