Connecting assembly and method
Core sampler
Curved offshore well conductors
Curved offshore well conductors
Curved well conductors for offshore platform
Cutter head, boring jig and device and process for sea bottom bo
Deep draft drilling platform
Deep water riser system for offshore drilling
Deep water slim hole drilling system
Deepwater drill string shut-off valve system and method for...
Deviated conductor driving system
Deviated conductor driving system
Deviated drilling apparatus
Device for controlling underwater pressure
Device for guiding a drilling string during underwater drilling
Disconnectable riser for deep water operation
Downhole coring device
Downhole drilling apparatus
Drill ahead tool
Drilling device