Self-repairing multi-soap based composite bearing lubricating grease and preparation method thereof

Abstract

The related composite poly-soap self-repair bearing lubricating grease comprises the basic liquid, composite calcium sulfonate, composite Ca-Li-base thickener, non-oxidizing anti-corrosion additive, metal deactivator, tungsten disulfide extreme pressure additive, wear-well additive, self-repair additive, and structural modifier; has well anti-oxidation ability and bearing capacity, can repair wore part on condition of extreme pressure and high temperature to supply the silver-plating lacking on bearing radial surface effectively, prolongs bearing service time on maximum limit, and has special application in oil drilling exploration.

Description

field of invention

[0001] The invention relates to a composite multi-soap base self-repairing bearing lubricating grease and a preparation method thereof, in particular to a composite multi-soap base self-repairing bearing lubricating grease used for roller cone bits in the field of petroleum geological exploration and drilling and a preparation method thereof. Background of the invention

[0002] The main problems faced by the roller cone bit bearing grease used for petroleum geological exploration and drilling are the early wear and failure of the bearing caused by extreme pressure, heavy load, high temperature, and high impact and vibration. The harsh environment of underground drilling will cause the bearing of the roller cone bit to face extremely high frictional heat generation. The generation of a large amount of frictional heat will easily cause early failure of the grease. Failure to clean the secondary surface in a timely manner will accelerate the rate of wear and...