Broad-spectrum aged oil demulsifier and preparation method thereof

A technology of oil demulsifier and crude oil demulsifier, which can be used in chemical dehydration/demulsification, petroleum industry, treatment of hydrocarbon oil, etc. Wetness and permeability, the effect of reducing the oil-water interfacial tension

Active Publication Date: 2017-12-01
盘锦富隆化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention proposes a broad-spectrum aging oil demulsifier, which can solve the problems of incomplete dehydration or collapse of the electric field when the aging oil and the aging oil layer are treated separately or mixed with oil.

Method used

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  • Broad-spectrum aged oil demulsifier and preparation method thereof
  • Broad-spectrum aged oil demulsifier and preparation method thereof
  • Broad-spectrum aged oil demulsifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. A broad-spectrum aging oil demulsifier, consisting of the following components in percentage by weight:

[0040] Ultra-high molecular weight crude oil demulsifier FL-1 (solid content 10%): 10%

[0041] Terpolymer: 23%

[0042] Sodium perfluorononenyloxybenzenesulfonate: 2%

[0043] Lauryl Glucoside: 3%

[0044] Polyethyleneimine (n=50): 10%

[0045] Isotridecanyl polyoxyethylene ether (P=9): 3%

[0046] Acryloylmorpholine: 4%

[0047] Mixed solvent: methanol, dimethylformamide and deionized water (mass ratio 6:3:1) = 45%

[0048] 2. The preparation process of the above-mentioned broad-spectrum aging oil demulsifier:

[0049] 2.1 At room temperature, according to the weight percentage, first put the mixed solvent in the reaction kettle, start stirring, and then stir for about 10-20 minutes after the dropwise addition, until the sample is transparent.

[0050] 2.2 Continuously add ternary copolyether into the reactor to stir, mix and fully dissolve, then add sod...

Embodiment 2

[0061] 1. A broad-spectrum aging oil demulsifier, consisting of the following components in percentage by weight:

[0062] Ultra-high molecular weight crude oil demulsifier FL-1 (solid content 10%): 4%

[0063] Terpolymer: 35%

[0064] Sodium perfluorononenyloxybenzenesulfonate: 1%

[0065] Butyl Glucoside: 6%

[0066] Polyethyleneimine (n=50): 8%

[0067] Isotridecanyl polyoxyethylene ether (P=7): 2%

[0068] Methylmorpholine: 5%

[0069] Mixed solvent: methanol, dimethylformamide and deionized water (mass ratio 6:3:1) = 39%

[0070] 2. The preparation process of the above-mentioned broad-spectrum aging oil demulsifier:

[0071] 2.1 At room temperature, according to the weight percentage, first put the mixed solvent in the reaction kettle, start stirring, and then stir for about 20 minutes after the dropwise addition, until the sample is transparent.

[0072] 2.2 Continuously add ternary copolyether into the reactor to stir, mix and fully dissolve, then add sodium perf...

Embodiment 3

[0083] 1. A broad-spectrum aging oil demulsifier, consisting of the following components in percentage by weight:

[0084] Ultra-high molecular weight crude oil demulsifier FL-1 (solid content 10%): 7%

[0085] Terpolymer: 28%

[0086] Sodium perfluorooctenyloxybenzenesulfonate: 2%

[0087] Nonyl Glucoside: 4%

[0088] Polyethyleneimine (n=50): 9%

[0089] Isotridecanyl polyoxyethylene ether (P=8): 4%

[0090] Acryloylmorpholine: 4%

[0091] Mixed solvent: methanol, dimethylformamide and deionized water (mass ratio 6:3:1) = 43%

[0092] 2. The preparation process of the above-mentioned broad-spectrum aging oil demulsifier:

[0093] 2.1 At room temperature, according to the weight percentage, first put the mixed solvent in the reaction kettle, start stirring, and then stir for about 10 minutes after the dropwise addition, until the sample is transparent.

[0094] 2.2 Continuously add ternary copolyether into the reactor to stir, mix and fully dissolve, then add sodium pe...

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Abstract

The invention discloses a broad-spectrum aged oil demulsifier. The broad-spectrum aged oil demulsifier is prepared from the components in percentage by weight: 3 percent to 15 percent of a super-high molecular weight crude oil demulsifier, 21 percent to 35 percent of ternary copolymerized ether, 16 percent to 30 percent of an auxiliary agent and 20 percent to 60 percent of a mixed solvent; the invention further discloses a preparation method. The demulsifier has a reasonable molecular structure, proper molecular weight and strong cooperativity, has the characteristics of deep dehydration on aged oil, rapid demulsifying speed, clear and smooth oil-water interface, wetting, penetration and water clearing and the like, and has broad-spectrum performance.

Description

technical field [0001] The invention relates to the technical field of oilfield chemical preparations, in particular to a broad-spectrum aging oil demulsifier and a preparation method thereof. Background technique [0002] Crude oil demulsifiers are widely used at home and abroad because of their convenient and efficient demulsification. Today, the third generation of demulsifiers has come out. Generally, the demulsifiers for specific oil products are obtained through synthesis, modification, compounding, screening and other means. emulsion. [0003] With the progress of tertiary oil recovery (also known as enhanced oil recovery) in the oil field, due to the adoption of methods such as surfactant flooding, alkali flooding, polymer flooding, ASP flooding, biological flooding, etc., as well as profile control, acidizing, fracturing, etc. Measures, a large number of oilfield chemical additives are used. Oil products contain surfactants, polymers, emulsifiers, corrosion and sca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
CPCC10G33/04C10G2300/208
Inventor 胡新生胡毓桓王方
Owner 盘锦富隆化工有限公司
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