SPE Annual Technical Conference and Exhibition · 1999 · 19 citations · 5 references
EngineeringMechanical EngineeringPetroleum EngineeringDrillingDrilling EngineeringTribologyDrilling EquipmentDrilling FluidsDrilling MechanicsLubricant PropertiesLubrication EngineeringLubrication SystemsFrictionLubricantsLubrication TestingLubricityMud RheologySolids Control
Abstract Particles like barite and cuttings influence the friction properties of a mud. The standard API lubricity tester, however, cannot measure friction of fluids containing particles, and to overcome this problem it was modified with a cam setup. It was found that particles indeed alter the friction. Large beads are being used to reduce friction. They are, however, filtered out in the solids control equipment and to avoid this, we have investigated smaller polymer microbeads which will pass unhindered. The microbeads reduce the friction in water based muds with around 40% which is significantly better than four commercial lubricants.
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