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A thick oil emulsifying viscosity reducer with steam and its preparation method and use method

A technology of emulsifying viscosity-reducing and viscosity-reducing agents, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems that the viscosity-reducing effect cannot be fully exerted, and achieve the effect of improving penetration capacity, simple process, and rapid emulsification

Active Publication Date: 2018-08-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a heavy oil emulsified viscosity reducer with steam, which not only has good temperature resistance and salt resistance, but also has strong penetration ability, so as to solve the problem of the existing viscosity reducer in the formation of super heavy oil reservoirs. In the case of high water salinity and high content of heavy components in super-heavy oil, its viscosity-reducing effect cannot be fully exerted

Method used

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  • A thick oil emulsifying viscosity reducer with steam and its preparation method and use method
  • A thick oil emulsifying viscosity reducer with steam and its preparation method and use method
  • A thick oil emulsifying viscosity reducer with steam and its preparation method and use method

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Embodiment 1

[0032] The emulsified viscosity reducer for heavy oil with steam in this embodiment includes the following components in parts by weight: 80 parts of fatty amine polyoxyethylene ether sodium carboxylate, 15 parts of sodium metaborate, and 5 parts of isobutanol; The molecular formula of fatty amine polyoxyethylene ether sodium carboxylate is:

[0033]

[0034] Among them, n is 18, x is 5, and y is 5.

[0035]The heavy oil emulsification (water-based) viscosity reducer with steam of the present embodiment includes the following components in parts by weight: 80 parts of fatty amine polyoxyethylene ether sodium carboxylate, 15 parts of sodium metaborate, and 5 parts of isobutanol , 30 parts of water, wherein, the molecular formula of the fatty amine polyoxyethylene ether sodium carboxylate is as shown in formula (1-1).

[0036] The preparation method of the heavy oil emulsification (water-based) viscosity reducer with steam of the present embodiment is carried out in the foll...

Embodiment 2

[0044] The heavy oil emulsified viscosity reducer with steam in this embodiment includes the following components in parts by weight: 75 parts of fatty amine polyoxyethylene ether sodium carboxylate, 10 parts of sodium bicarbonate, and 1 part of n-butanol; The molecular formula of fatty amine polyoxyethylene ether sodium carboxylate is:

[0045]

[0046] Among them, n is 12, x is 2, and y is 2.

[0047] The heavy oil emulsification (water-based) viscosity reducer with steam of the present embodiment includes the following components in parts by weight: 75 parts of fatty amine polyoxyethylene ether sodium carboxylate, 10 parts of sodium bicarbonate, and 1 part of n-butanol 10 parts of water, wherein, the molecular formula of the fatty amine polyoxyethylene ether sodium carboxylate is as shown in formula (1-2).

[0048] The preparation method of the heavy oil emulsification (water-based) viscosity reducer with steam of the present embodiment is carried out in the following s...

Embodiment 3

[0056] The emulsified viscosity reducer for heavy oil with steam in this embodiment includes the following components in parts by weight: 78 parts of fatty amine polyoxyethylene ether sodium carboxylate, 12 parts of triethanolamine, and 3 parts of isopropanol; wherein, the The molecular formula of fatty amine polyoxyethylene ether sodium carboxylate is:

[0057]

[0058] Among them, n is 15, x is 4, and y is 4.

[0059] The heavy oil emulsification (water base) viscosity reducer with steam of the present embodiment comprises the following components in parts by weight: 75 parts of fatty amine polyoxyethylene ether sodium carboxylate, 10 parts of triethanolamine, 1 part of isopropanol, 20 parts of water, wherein, the molecular formula of the fatty amine polyoxyethylene ether sodium carboxylate is shown in formula (1-3).

[0060] The preparation method of the heavy oil emulsification (water-based) viscosity reducer with steam of the present embodiment is carried out in the f...

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Abstract

The invention discloses a thick oil emulsifying viscosity breaker for tracing steam, and a preparation method and application method thereof. The viscosity breaker comprises the following components in parts by weight: 75-80 parts of sodium fatty amine polyethenoxy ether carboxylate, 10-15 parts of alkaline assistant and 1-5 parts of small molecule alcohol. The molecular formula of the sodium fatty amine polyethenoxy ether carboxylate is disclosed as Formula (1), wherein n is any whole number ranging from 12 to 18, x is any whole number ranging from 2 to 5, and y is any whole number ranging from 2 to 5. The thick oil emulsifying viscosity breaker for tracing steam is compounded from the main agent sodium fatty amine polyethenoxy ether carboxylate, the synergist alkaline assistant and the penetrant small molecule alcohol with water. The obtained viscosity breaker has high temperature resistance and salt resistance, can quickly emulsify the thick oil with higher colloid asphalt content, has the advantages of favorable viscosity breaking effect and the like, and can be automatically demulsified. The thick oil emulsifying viscosity breaker for tracing steam satisfies the viscosity breaking requirements for high-temperature high-salinity high-colloid-asphalt super-thick oil, and is suitable for tracing steam injection in steam soak and steam displacement.

Description

technical field [0001] The invention belongs to the technical field of viscosity reducer for petroleum development, and in particular relates to a heavy oil emulsification viscosity reducer with steam, and at the same time relates to a preparation method and a use method of a heavy oil emulsification viscosity reducer with steam. Background technique [0002] Heavy oil refers to crude oil with a viscosity greater than 100mPa·s at the reservoir temperature. Heavy oil has high viscosity, high flow resistance, and is difficult to exploit; however, the reserves of heavy oil in some countries are relatively large, and if the technical problems of difficult exploitation are not solved, great economic losses will be caused. To solve the problem of heavy oil production, the first thing to consider is how to reduce the freezing point and viscosity of heavy oil. [0003] Super heavy oil refers to crude oil with a viscosity greater than 50,000 mPa·s, which has special characteristics ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/588
CPCC09K8/588
Inventor 张清军罗全民刘子胜袁光喜顾宇鹏孙瑞云
Owner CHINA PETROLEUM & CHEM CORP