English
Main ingredients
Special lubricants for drilling fluids are a type of special lubricant made from mineral oil or vegetable oil as the base material, surfactants and lubrication enhancers as auxiliary materials, and moderately esterified.
Nature and Use
The product is a uniform and flowable liquid, effectively reducing the friction between the drill pipe and the wellbore, drill pipe and casing, and drill pipe and mud during the drilling process. Especially suitable for lubrication in horizontal wells, large displacement wells, window wells, and some difficult wells.
Specification
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Project |
Indicators |
Remarks |
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Appearance |
Unsettled Flowable Liquid |
B-class indicators |
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Fluorescence level a/level |
≤4 |
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Bubble rate，% |
≤10 |
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Surface viscosity increase value，mPa•s |
≤5 |
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Increased value of filtration loss，mL |
≤0 |
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Bubble rate，% |
≤10 |
A-class indicators |
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Surface tension reduction rateb，% |
≥40 |
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Reduction rate of lubrication coefficient，% |
Ordinary lubricant |
Freshwater slurry |
≥65 |
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4% saline slurry |
≥65 |
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Oil based temperature and salt resistant type |
4% saline slurry (after high temperature of 200 ℃) |
≥60 |
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Saturated saline slurry (after high temperature of 200 ℃) |
≥50 |
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Special Lubricants |
4% saline slurry (after high temperature of 200 ℃) |
≥70 |
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Saturated saline slurry (after high temperature of 200 ℃) |
≥60 |
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a、 The fluorescence level indicator is limited to non fluorescent interference liquid lubricants used in drilling fluids, and other liquid lubricants are not tested. b、 The surface tension reduction rate indicator is limited to special lubricants, and other liquid lubricants are not tested. |
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Product features
Usage
Just mix it directly into the drilling fluid. Recommended dosage: 1.0% -2.0%.
