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Polyamide-amine-alkyl ester asphalt dispersant for high pour point thick crude oil

A high-condensation heavy oil and polyamide technology, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., to achieve the effects of improving flow performance, significant economic benefits, anti-sedimentation ability and dispersibility

Active Publication Date: 2017-06-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned polyamide-amine-alkyl ester organic compound has not been seen in any literature or patent reports for the use of high-pouring viscous oil asphalt dispersants

Method used

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  • Polyamide-amine-alkyl ester asphalt dispersant for high pour point thick crude oil
  • Polyamide-amine-alkyl ester asphalt dispersant for high pour point thick crude oil
  • Polyamide-amine-alkyl ester asphalt dispersant for high pour point thick crude oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: asphaltene dispersant A and preparation method thereof

[0025] (1) The composition and components of asphaltene dispersant A are as follows

[0026] Main ingredient 5.0g

[0027] The solvent is benzene 5.0g

[0028] The main agent is a dendritic organic compound with multiple amide groups, ester groups and amine functional groups, and its molecular formula is as follows:

[0029]

[0030] In the formula:

[0031] (2) The preparation method of asphaltene dispersant A

[0032] ① Weigh 5.0g of solvent benzene into the beaker, and stir while heating. The heating temperature is 40°C, the heating time is 20min, the stirring speed is 200rpm, and the stirring time is 15min. After the heating time is over, the temperature is naturally cooled to room temperature;

[0033] ②Add 5.0g of the main ingredient to the above-mentioned solvent benzene, and stir while heating. The heating temperature is 55°C, the heating time is 30min, the stirring speed is 400rpm, ...

Embodiment 2

[0038] Embodiment 2: asphaltene dispersant B and preparation method thereof

[0039] (1) The composition and components of asphaltene dispersant B are as follows

[0040] Main ingredient 1.0g

[0041] The solvent is trimethylbenzene 99.0g

[0042] The main agent is a dendritic organic compound with multiple amide groups, ester groups and amine functional groups, and its molecular formula is as follows:

[0043]

[0044] In the formula:

[0045] (2) The preparation method of asphaltene dispersant B

[0046] ① Weigh 99.0g of the solvent trimethylbenzene and add it to the beaker, and stir while heating. The heating temperature is 45°C, the heating time is 25min, the stirring speed is 260rpm, and the stirring time is 10min. After the heating time is over, the temperature is naturally cooled to room temperature;

[0047] ② Add 1.0g of the main ingredient to the above trimethylbenzene solvent, and stir while heating. The heating temperature is 50°C, the heating time is 25mi...

Embodiment 3

[0050] Embodiment 3: asphaltene dispersant C and preparation method thereof

[0051] (1) The composition and components of asphaltene dispersant C are as follows

[0052] Main ingredient 2.0g

[0053] The solvent is toluene 18.0g

[0054] The main agent is a dendritic organic compound with multiple amide groups, ester groups and amine functional groups, and its molecular formula is as follows:

[0055]

[0056] In the formula:

[0057] (2) The preparation method of asphaltene dispersant C

[0058] ① Weigh 18.0g of solvent toluene into the beaker, and stir while heating. The heating temperature is 50°C, the heating time is 30min, the stirring speed is 300rpm, and the stirring time is 20min. After the heating time is over, the temperature is naturally cooled to room temperature;

[0059] ② Add 2.0g of the main ingredient to the above-mentioned solvent toluene, and stir while heating. The heating temperature is 60°C, the heating time is 20min, the stirring speed is 500rpm,...

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Abstract

The invention discloses a polyamide-amine-alkyl ester asphalt dispersant for high pour point thick crude oil. The dispersant is formed by a primary agent and a solvent. The primary agent is a dendritic organic compound with a plurality of acylamino, ester groups and amido functional groups, wherein the molecular formula of the compound is as shown in the description. In the formula, the solvent is one of benzene, methylbenzene, xylene and trimethylbenzene. The raw materials of the asphalt dispersant disclosed by the invention are wide in source, the synthetic process is simple, and the process is clean and pollution-free. The product is easy to obtain and transport and store. The asphalt dispersant disclosed by the invention has the advantages of small dosage and obvious economical benefit; meanwhile, the asphalt dispersant is good in temperature-resistance and salt resistance, and the asphalt dispersant can resist a temperature of 220 DEG C and the resistance degree of mineralization reaches 230000mg / L. The asphalt dispersant disclosed by the invention is good in universality, and has a relatively good dispersing effect to an asphalt matrix. When the dosage is 100ppm, the viscosity of high pour point thick crude oil can be reduced by 85% above. Therefore, the asphalt dispersant disclosed by the invention can be widely applied to a viscosity reducing field test of the high pour point thick crude oil.

Description

technical field [0001] The invention relates to a dendritic macromolecule compound used in heavy oil exploitation process that can help disperse asphalt, in particular to a polyamide-amine-alkyl ester used as a bitumen dispersant for high-condensation heavy oil. Background technique [0002] The reserves of heavy oil resources account for a relatively large proportion of the total reserves of oil and gas resources in the world. With the continuous improvement of oil resource exploitation technology and the continuous depletion of light crude oil resources, highly pourable heavy oil resources have attracted more and more attention from petroleum workers. Therefore, how to exploit and utilize highly pourable heavy oil to make it a usable energy reserve has become a difficult problem that the petroleum industry has been exploring. Adding a small amount of pour point depressant to crude oil to improve the low-temperature fluidity of heavy oil is an effective method commonly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/524C09K8/58
CPCC09K8/524C09K8/58
Inventor 郑万刚马爱青陈连喜何旭梁伟王志坚谢志勤孙克己
Owner CHINA PETROLEUM & CHEM CORP
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