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Efficient degreaser and preparation and application methods thereof

A degreaser and high-efficiency technology, which is applied in the field of high-efficiency degreaser and preparation, can solve the problems of the surfactant scavenger with many foams, difficult handling, and increasing the difficulty of cleaning the grit chamber, so as to achieve a significant degreasing effect and reduce the interface. The effect of tension

Inactive Publication Date: 2019-04-05
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the process of fracturing, sandblasting, perforating, sand washing, swabbing, etc., the proppant discharged by the oil well wraps a certain amount of crude oil, which increases the difficulty of cleaning the grit chamber, and crude oil will also adhere to the inner wall of the large tank, which is difficult to handle to environmental requirements
Conventional lye scavengers need to be heated, which increases the complexity of the on-site treatment process; surface active scavengers have more foam, which increases the difficulty of waste liquid treatment

Method used

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  • Efficient degreaser and preparation and application methods thereof

Examples

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Effect test

Embodiment 1

[0027] This embodiment provides a high-efficiency degreasing agent, which is composed of the following substances in weight percentage: 20.0% surfactant, 10.0% solvent, 3.0% alkali, 2.0% inorganic salt, and the rest is water.

[0028] Preparation process: Step 1) Fully mix the formulated amount of alkali and inorganic salt in water with part of the water, and the mixing temperature is 50°C to obtain the mixture A;

[0029] Step 2) Add the formulated amount of surfactant and solvent into the mixture A, stir the reaction time for 5 hours, and obtain the mixture B;

[0030] Step 3) Add the remaining amount of water to the mixture B and stir to obtain a high-efficiency degreasing agent.

[0031] In this example, the surfactant is a mixture of sodium dodecylbenzenesulfonate and nonylphenol polyoxyethylene ether (TX-10), with a mass ratio of 1:1; the solvent is ethanol and ethylene glycol monobutyl A mixture of ethers, the mass ratio is 1:1.

[0032] Principle of the present inven...

Embodiment 2

[0035] This embodiment provides a high-efficiency degreasing agent, which is composed of the following substances in weight percentage: 25.0% surfactant, 15.0% solvent, 5.0% alkali, 5.0% inorganic salt, and the rest is water.

[0036] Preparation process: Step 1) Fully mix the formulated amount of alkali and inorganic salt in water with part of the water, and the mixing temperature is 55°C to obtain the mixture A;

[0037] Step 2) Add the formulated amount of surfactant and solvent into mixture A, stir for 6 hours to obtain mixture B;

[0038] Step 3) Add the remaining amount of water to the mixture B and stir to obtain a high-efficiency degreasing agent.

[0039] In this example, the surfactant is a mixture of sodium dodecylbenzenesulfonate and nonylphenol polyoxyethylene ether (TX-10), with a mass ratio of 1:2; the solvent is ethanol and ethylene glycol monobutyl A mixture of ethers, the mass ratio is 1:3.

Embodiment 3

[0041] This embodiment provides a high-efficiency degreasing agent, which is composed of the following substances in weight percentage: 20.0% surfactant, 10.0% solvent, 3.0% alkali, 2.0% inorganic salt, and the rest is water.

[0042] Preparation process: Step 1) Fully mix the formulated amount of alkali and inorganic salt in water with part of the water, and the mixing temperature is 55°C to obtain the mixture A;

[0043] Step 2) Add the formulated amount of surfactant and solvent into mixture A, stir for 6 hours to obtain mixture B;

[0044] Step 3) Add the remaining amount of water to the mixture B and stir to obtain a high-efficiency degreasing agent.

[0045] In this example, the surfactant is a mixture of cis-9-octadecenoic acid and nonylphenol polyoxyethylene ether (TX-10), with a mass ratio of 1:1; the solvent is isopropanol and ethylene glycol The mixture of alcohol monobutyl ether, the mass ratio is 1:1.

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Abstract

The invention provides an efficient degreaser and preparation and application methods thereof. The efficient degreaser is composed of materials including, by weight percentage, 20.0-25.0% of surfactant, 10.0-15.0% of solvent, 3.0-5.0% of alkali, 2.0-5.0% of alkali and water as balance. According to the efficient degreaser, the surfactant can significantly reduce oil-water interfacial tension and achieves certain emulsifying effects; the solvent can further eliminate organic matters in raw grease to weaken the bonding force between the organic molecules and a tank wall through penetration and further facilitate removal of the raw grease from the tank wall; alkali liquor can neutralize acid content in asphaltene to achieve the aim of efficient cleaning. Besides, the efficient degreaser is free from harm to environment and workers, significant in degreasing effects and consistent to the development trend of degreasers.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploitation, and in particular relates to a high-efficiency degreaser, a preparation method and application. Background technique [0002] Oil-containing proppants have complex components and are highly polluting. The existing treatment methods mainly include stratum reinjection method, bioremediation method, safe landfill method, centrifugal treatment method, chemical cleaning method, supercritical extraction method, water jet method, etc., but most of them have certain deficiencies, for example, reinjection Stratigraphic method has high cost, complex process, and strict requirements on the target stratum; bioremediation method takes a long time and it is difficult to select suitable strains; safe landfill method does not recover oil, and there are safety hazards at the same time; It is difficult to meet the needs of on-site treatment, and in-depth practical research on oil-containing proppan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/32C11D1/83C11D3/44C11D3/20C11D3/04C11D3/60
CPCC09K3/32C11D1/008C11D1/04C11D1/22C11D1/72C11D1/83C11D3/044C11D3/046C11D3/201C11D3/2017C11D3/2068C11D3/43
Inventor 李泽锋高燕张冕兰建平李大维廖乐军安子轩王改红姬随波陈建林陈亚联宇文昔涵邵秀丽安崇清宋鑫
Owner BC P INC CHINA NAT PETROLEUM CORP
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