Drill bits and drilling fluids should not be mixed.
Ingredients are different: Drill bit lubricants usually contain high levels of coolants and cleaning agents, while rig lubricants are more focused on lubrication and sealing properties. Mixing them can lead to problems such as reduced lubrication and corrosion of components.Viscosity differences: Drill bits typically have low viscosity for fast flow and cooling, while rig fluids vary in viscosity depending on the part and operating conditions. Mixing them can result in inadequate lubrication or excessive drag.
Additive differences: The two fluids also have different additive formulations, and mixing them may result in a chemical reaction that creates harmful substances or reduces lubrication performance.
Example:
Adding water-based cutting fluid to the gear box of a drilling rig will lead to increased wear of the gears due to the poor lubricity of the water-based cutting fluid; while adding lubricant to the cutting fluid will affect the cooling effect of the cutting fluid and lead to overheating of the drill bit.
Summarize:
In order to ensure the normal operation and prolong the service life of the drill bit and drilling rig, special lubricating fluids should be used, and refilled and replaced according to the requirements of the equipment manual. Never mix different types of lubricating fluids at random.
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