The present invention relates to a method for riser string handling on an offshore drilling vessel (1), the offshore drilling vessel comprising a multiple firing line hoist system, a riser tensioner system (50) arranged in the second firing line, and a suspended riser transfer device (60). The method comprising the steps of lowering a riser string in the first firing line, and simultaneously assembling and preparing a riser tensioner system in the second firing line, wherein the riser hang-off assembly displaces the riser string, leaving the top end of the riser string exposed, from the first firing line to the second firing line to be connected to the riser tensioner system.
METHOD FOR RISER STRING HANDLING AND AN OFFSHORE DRILLING VESSEL
VERFAHREN ZUR STEIGLEITUNGSHANDHABUNG UND EIN OFFSHORE-BOHRSCHIFF
PROCÉDÉ DE MANIPULATION DE CHAÎNE DE COLONNE MONTANTE, ET NAVIRE DE FORAGE EN MER
2019-05-08
Patent
Elektronische Ressource
Englisch
Method for riser string handling and an offshore drilling vessel
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