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

A wax-removing and preventing composition, a water-soluble wax-removing and preventing agent and a preparation method thereof

A technology for removing and preventing wax and compositions, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of poor safety, flammability, explosion, and volatility, so as to prevent wax formation in oil wells and improve wax dissolution. Speed, the effect of improving wax control rate

Active Publication Date: 2018-08-10
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The wax removers used in chemical wax removal mainly include oil-based wax removers and water-based wax removers. Oil-based wax removers have high wax removal efficiency, but they have a pungent smell, are volatile, and are flammable and explosive. Greater toxicity, poorer safety

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 wax-removing and preventing composition, a water-soluble wax-removing and preventing agent and a preparation method thereof
  • A wax-removing and preventing composition, a water-soluble wax-removing and preventing agent and a preparation method thereof
  • A wax-removing and preventing composition, a water-soluble wax-removing and preventing agent and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The wax-removing and anti-wax composition of the present embodiment is composed of the following components by weight: 8 parts of alkylphenol polyoxyethylene ether, 4 parts of polyoxyethylene sorbitan fatty acid ester, 8 parts of fatty alcohol polyoxyethylene ether, ethylene glycol 20 parts of alcohol ethyl ether, 4 parts of sodium tripolyphosphate.

[0033] In this embodiment, the alkylphenol polyoxyethylene ether is octylphenol polyoxyethylene (9) ether, that is, the length of the alkyl carbon chain in its molecular structure is 8, and the degree of polymerization of polyoxyethylene is 9.

[0034] In the present embodiment, polyoxyethylene sorbitan fatty acid ester is polyoxyethylene (20) sorbitan undecyl fatty acid ester, that is, in its molecular structure, the sum of the degree of polymerization of polyoxyethylene is 20, and the carbon of fatty acid The chain length is 11.

[0035] In this embodiment, the fatty alcohol polyoxyethylene ether is dodecyl alcohol poly...

Embodiment 2

[0040] The water-soluble wax removing agent of the present embodiment is made up of the following components by weight percentage: alkylphenol polyoxyethylene ether 9%, polyoxyethylene (20) sorbitan fatty acid ester 5%, fatty alcohol polyoxyethylene ether 12%, ethylene glycol butyl ether 23%, sodium hexametaphosphate 5%, and the balance is deionized water.

[0041] In this embodiment, the alkylphenol polyoxyethylene ether is octylphenol polyoxyethylene (13) ether, that is, the length of the alkyl carbon chain in its molecular structure is 8, and the degree of polymerization of polyoxyethylene is 13.

[0042] In the present embodiment, polyoxyethylene sorbitan fatty acid ester is polyoxyethylene (20) sorbitan pentadecyl fatty acid ester, that is, in its molecular structure, the sum of the degree of polymerization of polyoxyethylene is 20, and the carbon of fatty acid The chain length is 15.

[0043] In this embodiment, the fatty alcohol polyoxyethylene ether is cetyl alcohol p...

Embodiment 3

[0047] The water-soluble wax removing agent of the present embodiment is made up of the following components by weight percentage: alkylphenol polyoxyethylene ether 12%, polyoxyethylene (20) sorbitan fatty acid ester 6%, fatty alcohol polyoxyethylene ether 10%, propylene glycol methyl ether 30%, sodium pyrophosphate 6%, and the balance is simulated brine.

[0048] In this embodiment, the alkylphenol polyoxyethylene ether is nonylphenol polyoxyethylene (15) ether, that is, the length of the alkyl carbon chain in its molecular structure is 9, and the degree of polymerization of polyoxyethylene is 15.

[0049] In the present embodiment, polyoxyethylene sorbitan fatty acid ester is polyoxyethylene (20) sorbitan seventeen-carbon fatty acid ester, that is, in its molecular structure, the sum of the degree of polymerization of polyoxyethylene is 20, and the carbon of fatty acid The chain length is 17.

[0050] In this embodiment, the fatty alcohol polyoxyethylene ether is stearyl al...

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
densityaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a wax removal and inhibition composition, a water-soluble wax removal and inhibition agent and a preparation method thereof, and belongs to the technical field of oil exploitation. The wax removal and inhibition composition consists of the following components in parts by weight: 8-12 parts of alkyl phenol polyoxyethylene ether, 4-6 parts of polyoxyethylene sorbitol anhydride fatty acid ester, 8-12 parts of fatty alcohol polyoxyethylene ether, 20-30 parts of an ether co-solvent, and 4-6 parts of a sequestering agent. The wax dissolution rate of the water-solubility wax removal and inhibition agent obtained by the preparation method of the present invention reaches more than 0.020 g / min, the wax inhibiting rate reaches more than 71%, the density is greater than 0.95 g / cm<3>, so that the water-solubility wax removal and inhibition agent has a good wax removal and inhibition effect, and is extremely convenient to use.

Description

technical field [0001] The invention relates to a wax removing and preventing composition, a water-soluble wax removing and preventing agent and a preparation method thereof, and belongs to the technical field of petroleum exploitation. Background technique [0002] In the field of crude oil extraction, crude oil usually contains a certain amount of wax, and the wax in crude oil in the formation usually exists in a dissolved state. However, during the extraction of crude oil, the crude oil produced by the oil well is extracted from the formation. And transported to the ground, the temperature and pressure of the crude oil liquid continue to drop. When the temperature of the crude oil liquid is lower than the melting point of the wax in it, the wax begins to crystallize and precipitate, and the precipitated wax will deposit on the sucker rod and the inner wall of the tubing. Cause problems such as sucker rod overload, tubing blockage, etc., resulting in a decline in oil produ...

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): C09K8/524
CPCC09K8/524
Inventor 张永刚李克智唐万举方群邓学峰罗懿符伟兵魏开鹏斯容王薇王萍熊佩杨欢刘学全
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