2015 ARKH-P4.0 Offshore Structures General
.pdfARKHANGELSK STATE TECHNICAL
UNIVERSITY
OFFSHORE FIELD DEVELOPMENT PROCESS ,CONCEPTS
AND FACILITIES
OCT 2015
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PART 4.0: OFFSHORE FACILITIES
GENERAL
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Daniel Saincry
19091910: Ferry Lake - Louisiana
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First drillship
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1912 – Lake Maracaibo - Venezuela
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Caspian sea, some time ago ..
100 km offshore
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OFFSHORE COMPLEX
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A NICE DAY IN NORTH SEA …
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MAIN GEOGRAPHICAL ZONES
Three « old » ones :
Important for Offshore history & for the large number of existing facilities:
North sea,
Gulf of Mexico,
Brazil…
A « more recent » zone:Africa :
Congo, Gabon, Ivory coast, and the Far East ,Indonesia
,Malaysia ..
and in very stong expansion: the Gulf of Guinea With mainly Nigeria, Angola, ...
and the Australia
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A LOT OF PLATEFORMS !
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Offshore Structures :types
Technical feasibility
conventional |
Deepwater |
Fixed platform 
Compliant tower
TLP
Spar
Semi-sub
FPSO
Subsea systems
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Water depth (m) '0 |
500 m |
1000 m |
1500 m |
2000 m |
2500 m |
3000 m |
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