Water base drilling mud composition

Water based drilling mud additive

Water based liquid foam extinguishing formulation

Water flooding process for recovering petroleum

Water loss reduction agents

Water loss reduction agents

Water loss reduction agents

Water soluble copolymers for use in fracture-acidizing of wells

Water soluble graft copolymers of lignin methods of making the s

Water soluble surfactant mobility control agent in oil recovery

Water soluble waterflood corrosion inhibitor

Water swellable clay composition and method to maintain stabilit

Water-based drilling and well-servicing fluids with swellable, s

Water-based drilling fluids having enhanced fluid loss control

Water-based metal-containing organic phosphate compositions

Water-dispersible hydrophobic thickening agent

Water-dispersible hydrophobic thickening agent

Water-flood surfactant

Water-in-oil microemulsion drilling fluids

Water-soluble copolymer and its preparation