Viscosified aqueous chitosan-containing well drilling and...
Viscosified aqueous chitosan-containing well drilling and...
Viscosified aqueous fluids and viscosifier therefor
Viscous oleaginous fluids and methods of drilling and...
Water base drilling fluids comprising oil-in-alcohol emulsion
Water based fluids comprising multivalent salts and low...
Water based synthetic hydrocarbon drilling fluid and spotting fl
Water soluble invert emulsions
Water-based drilling fluid
Water-based drilling fluid additive containing talc and...
Water-based drilling fluid containing anions with a high...
Water-based drilling fluids containing phosphites as lubricating
Water-based drilling fluids using latex additives
Water-based drilling fluids with high temperature fluid loss con
Water-wettable drilling mud additives containing uintaite
Well drilling and servicing fluids and methods of increasing the
Well drilling fluids
Well drilling fluids
Well drilling fluids and methods
Well fluid additive, well fluid made therefrom, method of treati