EP 1028889 A1 20000823 - SEMI-SUBMERSIBLE STRUCTURE
Title (en)
SEMI-SUBMERSIBLE STRUCTURE
Title (de)
HALBTAUCHER
Title (fr)
STRUCTURE SEMI-SUBMERSIBLE
Publication
Application
Priority
- EP 9807336 W 19981113
- GB 9724064 A 19971115
Abstract (en)
[origin: WO9925607A1] A semi-submersible structure (10) including pontoons (16) and carrying at least one prime mover (22) is provided, with prime movers (22) being located in the pontoons (16). The structure (10) is a semi-submersible rig with a deck (12) supported on two pairs of columns (14, 15), each pair of columns being carried by a respective pontoon (16). Prime mover support equipment and fuel tanks (34, 36) are also located in the pontoons. Ducting for exhaust gases and air for the prime mover is provided in the columns (14, 15) and an air inlet duct (40) is over-pressured by forcing air into the duct. Extraction means is provided for urging gases through a second outlet duct (44) to prevent a build-up of back pressure. The ducts (40, 44) are provided with integrity devices to prevent ingress of potentially explosive gases and to ensure that water cannot enter the ducts.
IPC 1-7
IPC 8 full level
B63B 1/10 (2006.01); B63B 1/12 (2006.01); B63B 35/44 (2006.01); B63H 21/12 (2006.01); B63H 21/32 (2006.01); B63J 2/06 (2006.01)
CPC (source: EP)
B63B 1/107 (2013.01); B63B 35/4413 (2013.01); B63H 21/12 (2013.01); B63H 21/32 (2013.01); B63J 2/06 (2013.01)
Citation (search report)
See references of WO 9925607A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9925607 A1 19990527; AU 1873499 A 19990607; CA 2310014 A1 19990527; EP 1028889 A1 20000823; GB 9724064 D0 19980114; JP 2001523613 A 20011127; NO 20002507 D0 20000515; NO 20002507 L 20000714
DOCDB simple family (application)
EP 9807336 W 19981113; AU 1873499 A 19981113; CA 2310014 A 19981113; EP 98963464 A 19981113; GB 9724064 A 19971115; JP 2000521007 A 19981113; NO 20002507 A 20000515