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Modified kitchen waste grease lubricant for drilling fluid and preparation method thereof

A technology of waste oil and lubricant, which is applied in the field of modified kitchen waste oil lubricant for drilling fluid and its preparation, which can solve the problems of environmental pollution and cost, and achieve good biodegradability, improved lubrication effect, and low fluorescence level.

Inactive Publication Date: 2020-06-05
新乡市振华钻井液材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a modified kitchen waste grease lubricant for drilling fluid and its preparation method, so as to solve the technical problems of the drilling fluid lubricant polluting the environment and high cost in the prior art

Method used

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  • Modified kitchen waste grease lubricant for drilling fluid and preparation method thereof
  • Modified kitchen waste grease lubricant for drilling fluid and preparation method thereof

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preparation example Construction

[0027] The present invention also provides a preparation method of a modified kitchen waste grease lubricant for drilling fluid, comprising the following steps:

[0028] (1) Weigh waste kitchen grease, place it in the first reaction kettle and gradually heat it up to 70°C-90°C, slowly add 30% aqueous sodium hydroxide solution to it under constant stirring, and continue stirring until the first reaction The solution in the kettle has no obvious stratification phenomenon, and the reaction ends at this moment, and the heating is stopped;

[0029] (2) Slowly drip saturated sodium chloride solution while hot in the above reaction solution and constantly stir, solids are separated out in the reaction solution, until no new solids are separated out, stop dripping saturated sodium chloride solution, and the The reaction liquid is filtered, the liquid part is removed, and the solid matter is collected for cooling and drying;

[0030] (3) Place the above-mentioned dried solid matter in...

Embodiment 1

[0033] A modified kitchen waste grease lubricant for drilling fluid. In parts by weight, the raw materials of the lubricant include 60 parts of kitchen waste oil, 10 parts of 30% sodium hydroxide aqueous solution, 10 parts of oleum, phosphoric acid 1 part of tricresyl ester, 0.5 part of zinc dialkyldithiophosphate, a total of 0.2 parts of ultraviolet absorber UV-9, ultraviolet absorber UV-531 and ultraviolet absorber RMB, a total of 4 parts of sulfurized oleic acid and sulfurized cottonseed oil, 0.2 parts of sodium benzoate.

[0034] As a phosphorus-containing anti-wear agent, tricresyl phosphate can reduce wear, improve the load-carrying capacity and extreme pressure performance of lubricating oil, thereby improving the friction performance of lubricants. As an antioxidant, zinc dialkyl dithiophosphate can decompose hydroperoxides and capture a large number of free radicals generated by hydroperoxides, thereby limiting the oxidation reaction process and preventing lubricants ...

Embodiment 2

[0042] A modified kitchen waste grease lubricant for drilling fluid. In parts by weight, the raw materials of the lubricant include 90 parts of kitchen waste oil, 40 parts of 30% sodium hydroxide aqueous solution, 30 parts of fuming sulfuric acid, and 2 parts of di-n-butyl phosphate, 1 part of zinc diethyldithiocarbamate, 0.3 parts of light stabilizer GW-540 and light stabilizer 744, 6 parts of sulfurized olefin, sodium dehydroacetate and paraben A total of 0.3 parts.

[0043] As a phosphorus-containing anti-wear agent, di-n-butyl phosphite can reduce wear, improve the load-carrying capacity and extreme pressure performance of lubricating oil, thereby improving the friction performance of lubricants. As an antioxidant, zinc diethyldithiocarbamate can decompose hydroperoxides and capture a large number of free radicals generated by hydroperoxides, thereby limiting the oxidation reaction process and preventing lubrication agent is oxidized. Light stabilizer GW-540 and light st...

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Abstract

The invention relates to a modified kitchen waste grease lubricant for drilling fluid and a preparation method thereof, and belongs to the technical field of lubricants. The lubricant comprises the following raw materials in parts by weight: 60-90 parts of kitchen waste grease, 10-40 parts of a sodium hydroxide water solution (30%), 10-30 parts of fuming sulfuric acid, 1-2 parts of an anti-wear agent, 0.5-1 part of an antioxidant, 0.2-0.3 part of an ultraviolet light absorber, 4-6 parts of an extreme pressure additive and 0.2-0.3 part of a preservative. The sulfonated fatty acid lubricant is prepared by chemically modifying the kitchen waste grease, the raw materials are cheap and easily available, the production cost and the fluorescence level of the lubricant are reduced, the preparationmethod is simple, few by-products are produced, no pollution is caused to the environment, and the modified kitchen waste grease has obvious high-temperature resistance and salt resistance effects.

Description

technical field [0001] The invention belongs to the technical field of lubricants, in particular to a modified kitchen waste grease lubricant for drilling fluid and a preparation method thereof. Background technique [0002] Drilling fluid is a circulating flushing medium used in the drilling process, also known as drilling flushing fluid, which mainly cleans the bottom of the hole, carries cuttings, cools the drill bit, lubricates the drill tool, protects the hole wall from collapse, protects the oil layer, balances the formation pressure and The performance of drilling fluid directly affects drilling efficiency, downhole safety and production cost, and is an important part of drilling engineering technology. [0003] Drilling fluid lubricant is an important chemical treatment agent for drilling fluid, which is used to improve the lubricating performance of drilling fluid, reduce downhole frictional resistance, improve the rheology and filtration performance of drilling flu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035
CPCC09K8/035C09K2208/34
Inventor 周瑜葛赵录亮周庆丰
Owner 新乡市振华钻井液材料有限公司
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