Drilling and producing deep water subsea wells

Drilling rig placed on the sea bed and equipped for drilling...

Drilling system and method for controlling equivalent...

Drilling waste handling

Drilling, production, test, and oil storage caisson

Drilling-workover vessel having a drill string extending...

Drive system for turning a swivel

Dry tree subsea well communications apparatus and method...

Dry tree subsea well communications apparatus using variable...

Dual concentric string high pressure riser

Dual-BOP and common riser system

Dynamically positioned, concentric riser, drilling method...

Environmental protection for subsea wells

Expandable tank for separating particulate material from drillin

External high pressure fluid reservoir for riser tensioner...

Extracting gas hydrates from marine sediments

Flex joint

Floatable drill cuttings bag and method and system for use...

Floating offshore construction, and floating element

Fluid separation method and system