floating drilling rig造句

Rig rates reported by industry web service show that the deepwater water floating drilling rigs are over twice that of the shallow water fleet, and rates for jackup fleet can vary by factor of 3 depending upon capability.
Shell, whose exploration and production research lab has a $ 500-million-a-year budget, had made discoveries that led to such breakthrough ideas as the floating drilling rig, and a computer chip design that was the precursor to random access memory.
Each oil tanker of 150 gross tons and above, ship of 400 gross tons and above other than an oil tanker, and manned fixed or floating drilling rig or other platform shall maintain an Oil Record Book Part I ( Machinery Space Operations ).
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