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NL1020310C2
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Offshore drilling, comprises use of rotary drill head at end of fixed drill strand clamped on at least three sides by clamp conveyor
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NL1016051C2
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Double mast.
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WO0129366A1
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Hoisting mechanism, with compensator installed in a hoisting cable system
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NL1009043C2
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Partially submergible vessel provides platform for oil or gas drilling operations
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NL1007798C2
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Riser tensioner.
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NL1007799C2
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Device for moving an elongated object, in particular a riser part or a drill pipe cassette.
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NL1006920C2
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Drilling vessel equipped with auxiliary tower or auxiliary mast.
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NL8901815A
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Crane.
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