Environment-friendly solid graphite lubricating composition and lubricant suitable for extreme temperature condition and preparation method of environment-friendly solid graphite and lubricant

A graphite lubricant and graphite lubrication technology, which is applied in the field of drilling materials, can solve the problems that lubricants are difficult to meet the use requirements, and achieve the effects of improving anti-adhesion performance, improving lubrication effect, and improving lubrication effect

Inactive Publication Date: 2019-12-20
石家庄市华荣泥浆材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide an environment-friendly solid graphite lubricating composition suitable for extreme temperature conditions, a lubricant and a preparation method thereof, so as to solve the problem that the lubricants in the prior art are difficult to meet the use requirements under extreme temperature conditions

Method used

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  • Environment-friendly solid graphite lubricating composition and lubricant suitable for extreme temperature condition and preparation method of environment-friendly solid graphite and lubricant
  • Environment-friendly solid graphite lubricating composition and lubricant suitable for extreme temperature condition and preparation method of environment-friendly solid graphite and lubricant
  • Environment-friendly solid graphite lubricating composition and lubricant suitable for extreme temperature condition and preparation method of environment-friendly solid graphite and lubricant

Examples

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Effect test

Embodiment 1

[0035] Add polytetrafluoroethylene powder, water-based polyamideimide solution, emulsifier, and optional ethylene glycol to the mixer for the first stirring to form the first mixed system; under the second stirring conditions Add graphite, molybdenum disulfide and bio-grease to a mixing system in turn. After the addition is complete, adjust the stirring speed and perform the third stirring to obtain an environmentally friendly solid graphite lubricant, polytetrafluoroethylene powder, water-based polyamide-imide solution, and emulsification The dosages of ethylene glycol, molybdenum disulfide, graphite and biological grease are shown in Table 1. Among them, graphite is flake graphite with a particle size of 100-500 mesh, PTFE powder is PTFE ultrafine powder, and water-based poly The solid content of the amide imide solution is 30%, the biological oil is vegetable oil, and the emulsifier is a mixture formed by mixing Span40 and Tween60 in a weight ratio of 1:2. The speed of the f...

Embodiment 10

[0041] The difference from Example 1 is that the bio-oil is animal fat,

Embodiment 11

[0043] The difference from Example 1 is that the bio-oil is animal fat,

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Abstract

The invention provides an environment-friendly solid graphite lubricating composition and lubricant suitable for an extreme temperature condition and a preparation method of the environment-friendly solid graphite and the lubricant. The environment-friendly solid graphite lubricating composition is prepared from the components in percentage by weight: 30-50% of graphite, 10-30% of polytetrafluoroethylene powder, 10-20% of an aqueous polyamide-imide solution, 15-30% of biolipid, 5-10% of an emulgator and 5-10% of molybdenum disulfide, wherein the solid content of the aqueous polyamide-imide solution is 25-35%. All components of the composition are environment-friendly materials, are easily degradable, and are difficult to solidify under low temperature; the graphite, the polytetrafluoroethylene powder and the biolipid have a high-temperature lubricating effect; the aqueous polyamide-imide solution has high temperature resistance, and adhesive force of the lubricant is increased by controlling the additive amount of the lubricant; and in addition, the emulgator improves the dispersity of the graphite and the polytetrafluoroethylene powder in a system, and the molybdenum disulfide further improves the anti-adhesion property of the lubricant.

Description

Technical field [0001] The present invention relates to the technical field of drilling materials, in particular to an environmentally friendly solid graphite lubricating composition, lubricant and preparation method thereof suitable for extreme temperature conditions. Background technique [0002] During the drilling process of oil and gas wells, because the formation contains a lot of shale, it is easy to cause the drilling bit to stick, causing the instability of the well wall, the occurrence of accidents such as well collapse and buried drilling, and aggravating the wear on the bit and drilling tools, resulting in major economic Loss; during the drilling process, the ground stress around the bottom of the well is released. Conventional drilling fluids will increase the drilling strength of the bottom of the well, which is not conducive to stable drilling at the bottom of the well and increases the resistance of the drilling bit; traditional drilling fluid materials are difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N50/08
CPCC10M169/044C10M2201/041C10M2201/066C10M2207/022C10M2207/401C10M2213/062C10M2217/044
Inventor 李云翔李琳琼
Owner 石家庄市华荣泥浆材料有限公司
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