OFFSHORE DRILLING APPARATUS AND METHODS

An offshore method comprises providing an elongate support string (18) for extending between a mobile offshore drilling unit (10) and a seabed location (19). The string has an upper portion (40a) and a lower portion (40b), and an articulated joint (200) is provided between the upper portion (40a) an...

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Bibliographische Detailangaben
Hauptverfasser: BRUCE, Stephen Edmund, HORN, Tristam Paul, REYNOLDS, Tyler Rhes, SHAND, David Michael
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An offshore method comprises providing an elongate support string (18) for extending between a mobile offshore drilling unit (10) and a seabed location (19). The string has an upper portion (40a) and a lower portion (40b), and an articulated joint (200) is provided between the upper portion (40a) and the lower portion (40b). The provision of the articulated joint (200) maintains the lower portion (40b) of the elongate support string in a substantially vertical orientation and increases the safe operating radius of the mobile offshore drilling unit (10) or increases the speed at which the unit may transit through the sea with objects suspended via the elongate support string (18).