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-containing microcapsules and method for their production

Oil-demulsifiers based on an alkoxylate and preparation of this

Oil-displacing aqueous solution thickened with reservoir-tailore

Oil-impregnated sintered product and method of producing same

Oil-in-alcohol emulsified composition

Oil-in-alcohol microemulsion containing oil-soluble corrosion in

Oil-in-alcohol microemulsions in antifreeze

Oil-in-water cream base

Oil-in-water dry film prelube emulsion

Oil-in-water emulsion

Oil-in-water emulsion

Oil-in-water emulsion and emulsifying or solubilizing agent comp