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A temperature-resistant and salt-resistant ASP flooding produced water degreasing agent and its preparation method

A ternary composite, temperature-resistant and salt-resistant technology, applied in separation methods, mining wastewater treatment, chemical instruments and methods, etc., can solve the problems of difficult regeneration and high cost, and achieve good wetting performance, permeability, and temperature resistance. Superior, simple synthesis process effect

Active Publication Date: 2019-06-14
大庆奥斯贝森化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most common adsorbent is activated carbon, which has good adsorption performance for oil, but it is expensive and difficult to regenerate. It is generally only used for advanced treatment of oily sewage

Method used

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  • A temperature-resistant and salt-resistant ASP flooding produced water degreasing agent and its preparation method
  • A temperature-resistant and salt-resistant ASP flooding produced water degreasing agent and its preparation method
  • A temperature-resistant and salt-resistant ASP flooding produced water degreasing agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Degreaser BE 1 and its preparation method

[0029] (1) Degreaser BE 1 The composition and its components are as follows:

[0030]

[0031] According to existing literature, the preparation method of described adamantane monoquaternary ammonium salt cationic surfactant is as follows:

[0032]

[0033] (2) Degreaser BE 1 The preparation method is as follows:

[0034] ① Mix 20 parts of adamantane monoquaternary ammonium salt cationic surfactant and 5 parts of Pingpingjia into the first beaker, add 30 parts of water, and heat while stirring. The stirring rate is 270ppm, and the heating temperature is 50°C. The heating time is 20min, and after the heating time is over, the temperature is naturally cooled to room temperature to obtain the mixed solution A;

[0035] ②Mix 8 parts of sodium dimethyl oleylamine oxide and 20 parts of oleic acid diethanolamide into the second beaker, add 30 parts of water, heat while stirring, the stirring rate is 500ppm, a...

Embodiment 2

[0037] Embodiment 2: Degreaser BE 2 and its preparation method

[0038] (1) Degreaser BE 2 The composition and its components are as follows:

[0039]

[0040] According to existing literature, the preparation method of described adamantane monoquaternary ammonium salt cationic surfactant is as follows:

[0041]

[0042] (2) Degreaser BE 2 The preparation method is as follows:

[0043] ① Mix 20 parts of adamantane monoquaternary ammonium salt cationic surfactant and 8 parts of Pingpingjia into the first beaker, add 40 parts of water, and heat while stirring. The stirring rate is 200ppm, and the heating temperature is 53°C. The heating time is 25min, and after the heating time is over, the temperature is naturally lowered to room temperature to obtain the mixed solution A;

[0044] ② Mix 15 parts of sodium dimethyl oleylamine oxide and 26 parts of oleic acid diethanolamide into the second beaker, add 40 parts of water, heat while stirring, the stirring rate is 530ppm, ...

Embodiment 3

[0046] Embodiment 3: Degreaser BE 3 and its preparation method

[0047] (1) Degreaser BE 3 The composition and its components are as follows:

[0048]

[0049] According to existing literature, the preparation method of described adamantane monoquaternary ammonium salt cationic surfactant is as follows:

[0050]

[0051] (2) Degreaser BE 3 The preparation method is as follows:

[0052] ① Mix 20 parts of adamantane monoquaternary ammonium salt cationic surfactant and 10 parts of Pingpingjia into the first beaker, add 45 parts of water, and heat while stirring. The stirring rate is 240ppm, and the heating temperature is 57°C. The heating time is 26min, and after the heating time is over, the temperature is naturally cooled to room temperature to obtain the mixed solution A;

[0053] ② Mix 18 parts of sodium dimethyl oleylamine oxide and 35 parts of oleic acid diethanolamide into the second beaker, add 45 parts of water, heat while stirring, the stirring rate is 550ppm...

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Abstract

The invention belongs to the technical field of oilfield sewage disposal, and particularly relates to a temperature-resisting and salt-resisting three-compound combination flooding produced water degreaser and a preparation method thereof. The degreaser is formed by compounding adamantine mono-quaternaries cationic surface active agent, peregal, dimethyl oleylamine sodium oxide, oleic diethanolamide and water, wherein the adamantine mono-quaternaries cationic surface active agent is a molecule having long-carbon chain alkyl non-polar group and adamantyl polar group. The degreaser is featured by simple preparation process, low cost, strong temperature resistance and salt resistance and good oil removing effect; the temperature resistance can reach 230 DEG C, the mineralization resistance can reach 230000 mg / L, and the oil removal rate can reach over 97%, which is improved by over 50% in comparison to the existed drug. Therefore, the invention can be widely applied to the oil removal technique of three-compound combination flooding produced water.

Description

technical field [0001] The invention relates to a degreasing agent used for oil field sewage treatment, in particular to a temperature-resistant and salt-resistant triple compound flooding produced water degreasing agent and a preparation method thereof. Background technique [0002] With the continuous development of oilfields and the continuous development of oil recovery technology, it has experienced primary, secondary, and tertiary oil recovery. Some oil fields in my country have entered the stage of tertiary oil recovery. Common tertiary oil recovery methods include polymer flooding, ASP flooding, binary flooding (alkali-polymer flooding, ie AP flooding), alkali flooding, foam composite flooding, etc. The composite flooding recovery technology is the most typical. Relevant studies have shown that ASP flooding can significantly increase oil recovery and has broad application prospects. However, because the produced water of ASP flooding contains a large amount of poly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00C02F1/40C02F1/28C02F1/54C02F103/10
CPCC02F1/00C02F1/285C02F1/40C02F1/54C02F2103/10C02F2305/04
Inventor 刘亭亭
Owner 大庆奥斯贝森化工科技有限公司
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