Acoustical underwater communication system for command control a

Active reference system

Alleviating vortex shedding stress problems

Apparatus and method for offshore drilling at great depths

Apparatus and method for placing explosives in submerged rock

Apparatus and method for supporting the free end of a cantilever

Apparatus and method of drilling with casing

Apparatus and method of drilling with casing

Apparatus for multiple wells through a single caisson

Arrangement for underwater drilling of foundations

Arrangement in connection with drilling of oil wells especially

Artificial lift system for marine drilling riser

Assembly and method for jarring a drilling drive pipe into...

Blow out preventer handling system

Brine-based drilling fluids for ballast tank storage

Cantilevered multi purpose tower and method for installing...

Carousel for vertically moored platform

Cementing portion of conductor string

Combination drivepipe/casing and installation method for offshor

Connecting assembly and method