Patents

Liner Drilling Using Temporarily Sealed Liner

 

Interface for Controlling and Improving Drilling Operations

 

Pull-Down Method and Equipment for Installing Well Casing

 

Method and Apparatus for Strengthening a Wellbore

 

Method and Apparatus for Detecting Defects in Oilfield Tubulars

 

Helix Centrifuge with Removable Heavy Phase Discharge Nozzles

 

Method and Apparatus for Drill Cuttings Transfer