EP 1266117 A1 20021218 - A RISER DEVICE
Title (en)
A RISER DEVICE
Title (de)
STEIGLEITUNG
Title (fr)
COLONNE MONTANTE
Publication
Application
Priority
NO 0000097 W 20000320
Abstract (en)
[origin: WO0171153A1] A riser (18) extends between a surface vessel, e.g. a drillship (16), and an item of subsea equipment, e.g. a blowout preventer valve (12) on the seabed (10). The riser (18) is equipped with at least one thruster, for instance in the form of one or more motor driven positional propellers (201, 202), which is arranged so as to be able to exert an essentially horizontal thrust force on the riser (18) in order to counteract the lateral forces from the oceanic currents, so as to maintain the riser (18) in a position that corresponds to the desired course from the surface vessel (16) to the subsea equipment (12).
IPC 1-7
IPC 8 full level
E21B 17/01 (2006.01)
CPC (source: EP)
E21B 17/01 (2013.01)
Citation (search report)
See references of WO 0171153A1
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 0171153 A1 20010927; AU 6739900 A 20011003; BR 0017174 A 20021210; CA 2402779 A1 20010927; EP 1266117 A1 20021218
DOCDB simple family (application)
NO 0000097 W 20000320; AU 6739900 A 20000320; BR 0017174 A 20000320; CA 2402779 A 20000320; EP 00955167 A 20000320