A kind of water-based cleaning liquid and its preparation method and application

A water-based cleaning solution and detergent technology, applied in the cleaning field, can solve the problems of expensive equipment, many pipelines, and difficulty in cleaning and effective protection.

Active Publication Date: 2021-09-10
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the hydraulic control system of the blowout preventer on the offshore drilling platform, especially the hydraulic control system of the underwater blowout preventer, has complex mechanical structure, many component valves, many and long pipelines, expensive equipment, and it is difficult to thoroughly clean and effectively protect it. Very big
At present, there is no report on the special water-based cleaning fluid for the hydraulic control system of the blowout preventer on the offshore drilling platform, especially the electro-hydraulic control system of the underwater blowout preventer.

Method used

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  • A kind of water-based cleaning liquid and its preparation method and application
  • A kind of water-based cleaning liquid and its preparation method and application
  • A kind of water-based cleaning liquid and its preparation method and application

Examples

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Effect test

Embodiment 1

[0061] The water-based cleaning solution of the present embodiment consists of the following components: 5 parts by weight of grease detergent (butyl glucoside and cocamidopropyl betaine, weight ratio 1:1), 1 part by weight of oxazolidine, oleic acid 1 part by weight of diethanolamide, 1 part by weight of nano-lanthanum hexaboride modified by polyethylene glycol (the particle diameter is 5nm, the weight percentage of lanthanum contained is 0.5%, and the weight percentage of boron is 8.2%), 3 parts by weight of sodium citrate, 1 part by weight of sodium tripolyphosphate, 38 parts by weight of ethylene glycol, 1 part by weight of triethanolamine and 49 parts by weight of water.

[0062] Among them, polyethylene glycol-modified nano-lanthanum hexaboride is prepared by the following method: add 0.5g polyethylene glycol and 35mL distilled water into a 100mL three-necked flask, and mix well to obtain the first mixed solution; add 1gLaCl 3 ·6H 2 0, 0.05g tetramethylethylenediamine ...

Embodiment 2

[0065] The water-based cleaning solution of this embodiment is composed of the following components: 12 parts by weight of grease detergent (lauryl glucoside and cocamidopropyl betaine, weight ratio 9:1), 5-phenyl-2- 9 weight parts of oxazolidinones, 9 weight parts of coconut acid diethanolamides, polyacrylic acid-modified nano lanthanum tetraboride (particle diameter is 20nm, the weight percentage of the lanthanum that contains is 5.7%, the weight percentage of boron The content is 0.9%) 7 parts by weight, 9 parts by weight of sodium dihydrogen citrate, 5 parts by weight of sodium tripolyphosphate, 19 parts by weight of ethylene glycol, 5 parts by weight of triethanolamine and 15 parts by weight of water.

[0066] Wherein, the nano-lanthanum tetraboride modified by polyacrylic acid is prepared by the following method: add 1g polyacrylic acid and 35mL distilled water in a 100mL three-necked flask, and mix uniformly to obtain the first mixed solution; add 1gLa(NO 3 ) 3 , 0.12g...

Embodiment 3

[0069] The water-based cleaning solution of this embodiment is composed of the following components: 10 parts by weight of grease detergent (octyl glucoside and cocamidopropyl betaine, weight ratio 5:1), 3-methyl-2-oxazole 3 parts by weight of alkanone, 5 parts by weight of oleic acid diethanolamide borate, the nanometer lanthanum trifluoride (particle diameter is 10nm, the weight percentage of the lanthanum that contains is 1.5% of boron) that boric acid monoester tertiary amine modifies The weight percentage is 4.6%) 5 parts by weight, 4 parts by weight of sodium citrate, 3 parts by weight of sodium tripolyphosphate, 25 parts by weight of ethylene glycol, 4 parts by weight of triethanolamine and 41 parts by weight of water.

[0070] Among them, the nano-lanthanum trifluoride modified by boric acid monoester tertiary amine is prepared by the following method: add 2 g of boric acid monoester tertiary amine and 35 mL of distilled water into a 100 mL three-necked flask, and mix e...

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Abstract

A water-based cleaning solution and its preparation method and application. The water-based cleaning solution includes 5-12 parts of grease detergent, 1-9 parts of bactericidal and desulfurizing agent, 1-9 parts of corrosion-inhibiting lubricant, 1-7 parts of extreme pressure and wear-resistant agent, and 3-9 parts of builder , 1-5 parts of sodium tripolyphosphate, 10-40 parts of ethylene glycol, 1-5 parts of triethanolamine and 15-49 parts of water. The method comprises: mixing grease detergent, sterilizing and desulfurizing agent, corrosion-inhibiting lubricant, extreme pressure wear-resistant agent, builder, sodium tripolyphosphate, ethylene glycol, triethanolamine and water, and stirring to obtain a mixed liquid ; Filter the mixed solution until the cleanliness meets the set requirements to obtain the water-based cleaning solution. The water-based cleaning fluid of the present application can effectively clean various pollutants in the hydraulic control system of the blowout preventer, and has good wear-resistant lubrication and metal corrosion prevention performance, and can provide protection for the hydraulic control system of the blowout preventer during the cleaning process. protection and prolong the service life of the equipment.

Description

technical field [0001] This article relates to the field of cleaning technology, especially to a water-based cleaning liquid, its preparation method and its application in the cleaning process of the hydraulic control system of the blowout preventer. Background technique [0002] In the field of deepwater drilling and completion, the underwater blowout preventer (Blow Out Preventer, BOP) is a key unit of equipment for semi-submersible or jack-up drilling platforms for offshore oil exploration, development and operations. Its function is to control wellhead pressure and prevent blowout Accidents, to ensure the safety of personnel, equipment and marine environment. Keeping the hydraulic control system of the underwater blowout preventer clean is an important guarantee for the safe and efficient drilling process and the improvement of equipment life. [0003] The blowout preventer hydraulic control system of the offshore drilling platform mainly adopts the environment-friendly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/52C09K8/54
CPCC09K8/52C09K8/54C09K2208/32C09K2208/34
Inventor 李文波苗海龙金学义张明正魏红球
Owner CHINA NAT OFFSHORE OIL CORP
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