Phospholipid lubricating agents in aqueous based drilling...
Polyalkyl methacrylate copolymers for rheological...
Polyamphoteric polysaccharide graft copolymers neutrally charged
Polymer-enhanced foamable drilling fluid
Polymers for drilling and reservoir fluids and their use
Polymers useful in the recovery and processing of natural resour
Polysaccharide containing fluids having enhanced thermal stabili
Polysaccharide-containing well drilling and servicing fluids
Pretreated clays, their preparation and use in formulation drill
Prevention and treatment of lost circulation with...
Process and water-base fluid for controlling the dispersion of s
Process fluid
Process fluid
Process for controlling iron
Process for disruption of filter cakes
Process for making sulfonated uintaite and well fluid...
Process for minimizing breaking of emulsion type drilling...
Process for producing a predetermined cesium compound
Process for reducing the toxicity of hydrocarbons
Process for reducing the toxicity of hydrocarbons