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Polymer asphaltene inhibitor as well as preparation method, compound system and application thereof

An asphaltene inhibitor and polymer technology, applied in the field of asphaltene inhibitors, can solve the problems of reducing production safety risks, operating costs, asphaltene deposition, etc., and achieve good inhibition effect, low cost, and delay of asphaltene deposition points. Effect

Pending Publication Date: 2022-06-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a polymer asphaltene inhibitor and its preparation method, compound system and application, effectively solve the problem of asphaltene deposition in the storage and transportation of heavy crude oil, reduce production Safety Risks and Operating Costs

Method used

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  • Polymer asphaltene inhibitor as well as preparation method, compound system and application thereof
  • Polymer asphaltene inhibitor as well as preparation method, compound system and application thereof
  • Polymer asphaltene inhibitor as well as preparation method, compound system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Dissolve octadecyl methacrylate, styrene and vinyl sulfonic acid in xylene in a molar ratio of 3:1:2 to prepare a solution with a monomer concentration of 20%. The polymer asphaltene inhibitor 1 was obtained by reacting the initiator benzoyl peroxide with 0.7% of the mass of the monomer at 70° C. for 6 hours.

Embodiment 2

[0058] Dissolve octadecyl methacrylate, styrene and vinylsulfonic acid in xylene in a molar ratio of 5:1:2 to prepare a solution with a monomer concentration of 20%. The polymer asphaltene inhibitor 2 was obtained by reacting the initiator benzoyl peroxide with 0.7% of the monomer mass at 70° C. for 6 hours.

Embodiment 3

[0060] Dissolve octadecyl methacrylate, styrene and vinylsulfonic acid in xylene in a molar ratio of 5:1:3 to prepare a solution with a monomer concentration of 20%. The polymer asphaltene inhibitor 3 was obtained by reacting the initiator benzoyl peroxide with 0.7% of the mass of the monomer at 70° C. for 6 hours.

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PUM

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Abstract

The invention discloses a polymer asphaltene inhibitor as well as a preparation method, a compound system and application thereof, and belongs to the technical field of asphaltene inhibitors. The structure of the asphaltene inhibitor is shown in the following formula, x, y and z are the total molar ratio of each block, and x + y + z = 1; r is n-octadecyl, the preparation method comprises the step of carrying out polymerization reaction on octadecyl methacrylate, styrene and vinyl sulfonic acid, the inhibitor is good in effect, good in stability, wide in application range, safe, reliable, economical and practical, the problem of asphaltene deposition in the storage and transportation process of heavy crude oil is effectively solved, and the production safety risk and the operation cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of asphaltene inhibitors, and particularly relates to a polymer asphaltene inhibitor and its preparation method, compounding system and application. Background technique [0002] In the process of crude oil production, asphaltene accumulation may occur from the inside of the formation to pumps, oil pipes, wellheads, safety valves, oil production pipelines and surface facilities. The average content of asphaltenes in the heavy crude oil produced in the oil field is 20.35%, so organic The formation of solid deposits is a serious problem affecting the petroleum industry. At present, no chemical additives have been found that can effectively inhibit asphaltene deposition for a long time, and the phenomenon of asphaltene deposition in oilfields has not been effectively solved. [0003] Asphalt dispersants commonly used in oilfields are mainly used to stabilize asphaltenes in crude oil to keep them in equilibrium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/08C08F228/02C09K8/524F17D1/16
CPCC08F220/1818C09K8/524F17D1/16C08F212/08C08F228/02
Inventor 袁林国顾永超唐海飞曹刚段余龙孟丽双王营孙佳妮雷高云张丽丽
Owner CHINA PETROLEUM & CHEM CORP