Natural magnetite is available in fine powder form, classified as mesh 325 with particles of about 45 micron or smaller. Natural magnetite is in dark black color and it is highly magnetic.
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Molybdenum disulfide is a good solid lubricating material. It has excellent lubricity for equipment under the conditions of high temperature, low temperature, high load, high speed, chemical corrosion and modern ultra-vacuum. Due to its low friction properties, it is widely used as solid lubricants such as greases, dispersants, friction materials, adhesive coatings, brake pads, carbon brushes, engineering plastics, etc.
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In drilling and production operations, not only water-based mud but also oil-based mud can be prepared, and its performance is superior to that of a traditional weighting agent.
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In the drilling for crude oil, water based mud is often used as a drilling fluid. Typically made using compounds like barite and bentonite clays to afford good lubricity, research has looked into other materials which may be beneficial and/or cheaper - but crucially are more tolerant to the high pressure, high temperature drilling processes of today. Typically for such applications, a denser material is used;
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Specific applications of magnetic mineral powder in oil drilling include:
1. Improve drilling efficiency: The high magnetism and magnetic conductivity of magnetic mineral powder make it better dispersed and suspended in drilling fluid, thus improving the fluidity and stability of drilling fluid and reducing the risk of borehole wall collapse.
2. Reduce equipment wear: The oxidation resistance and chemical stability of magnetic mineral powder enable it to maintain good performance under high temperature and high pressure environment, and reduce the wear and corrosion of drilling equipment caused by high temperature.
3. Improve the performance of drilling fluid: By adding a proper amount of magnetic mineral powder, the viscosity and density of drilling fluid can be adjusted to meet the drilling needs under different geological conditions and improve the safety and efficiency of drilling operations.
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Fe3O4, also known as Fe3O4, is a magnetic black crystal with the chemical formula Fe3O4. It can not only be used as a catalyst, but also be used to make recording tapes and telecommunications equipment
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