Oil recovery with water containing carbonate salt, CO.sub.2, and
Oil well completion fluid
Oil well drilling clay conditioner
Oil well drilling clay conditioners and method of their preparat
Oil well drilling clay conditioners and method of their preparat
Oil well drilling fluid
Oil well fluids and dispersants
Oil well fluids and dispersants
Oil well spacer fluids
Oil well spacer fluids
Oil well treating method and composition
Oil well treating method and composition
Oil well treating method and composition
Oil well treating method and composition
Oil well treating method and composition
Oil well treatment composition
Oil-based well bore fluids and gellants therefor
Oil-displacing aqueous solution thickened with reservoir-tailore
Olefin sulfonate-improved steam foam drive
Oligoquinolinium metal oxide salts as sulfur corrosion inhibitor