Drilling fluid bypass for marine riser

Drilling fluid compensation device

Drilling fluid diverter system

Drilling riser centralizer

Dual hoist system

Dual riser assembly, deep water drilling method and apparatus

Floating drilling platform

Floating drilling platform

Gas lift system for marine drilling riser

Heave compensator for drill ships

Hydrostatic penetration device and tool for the same

Integrated drilling deck and bop handling

Jack up workover rig with removable workover floor unit

Marine riser insert sleeves

Marine riser system with dual purpose lift and heave compensator

Marine structure and method of drilling a hole by means of said

Method and apparatus for compensating well control instrumentati

Method and apparatus for controlling pressure and detecting...

Method and apparatus for controlling the flow of drilling fluid

Method and apparatus for deepwater drilling