Water-Based Lubrication Preventing Side Grinding Demonstration in Medium-High Water Cut Wells

摘要

In order to extend the pump inspection cycle of the seriously-eccentric-wear well, FU-4 water-based lubricant,which can lubricate the boundary and form chemical reaction film and chemical adsorption film on the tubing and pumpsucker rods surface, is synthesized by using water-based lubrication theory for reference which has been widely applied inthe fields of cutting, grinding and others fields. The chemical reaction film and chemical adsorption film formed by theresponse activity of phosphorus, nitrogen and fatty acid molecules in the system for the carrier function have goodabrasion resistance and anti-friction performance as well as good biodegradability. Adding water-based lubricant of0.025% to 0.05% in the wells routine maintenance may extend the pump inspection cycle of eccentric-wear side grindingwells. It provides referable technique for managing side grinding wells.