Magnesia stabilized additives for non-clay wellbore fluids

Materials for use in drilling fluids

Mercaptan composition for dissolving sulfur and process for its

Mercapto-polycarboxylic acids

Metalized ammonium salts of condensates of sulpho group containi

Method and apparatus for adapting the composition of a drilling

Method and composition for acidizing subterranean formations

Method and composition for acidizing subterranean formations

Method and composition for acidizing subterranean formations

Method and composition for acidizing subterranean formations

Method and composition for corrosion

Method and composition for delaying the gellation of borated gal

Method and composition for inhibiting corrosion in high temperat

Method and composition for inhibiting corrosion in high temperat

Method and composition for inhibiting corrosion of ferrous metal

Method and composition for preventing the formation of sludge in

Method and composition for reducing the permeability of a high-p

Method and composition for removing elemental sulfur from high t

Method and composition for selectively reducing permeability to

Method and composition for viscosifying hydrocarbons