Handbook for OFFSHORE SURVEYING
======================
(70)
=======================
: Offshore Oil & Gas Industry
: Instrumentation
: Offshore Operations
=======================
...
.. - -
..
2009
Offshore Oil & Gas Industry
5000
Paleozoic Cenozoic
1901 ..
٦٠ % ( ٦٥ % ٢٠١٠) 100
Platform 1938 1946
semi-submersible Dynamic position ( )
..
٦٣ % ٣٨ %