Apparatus, system and method for tethering a subsea well assembly

A tethering system 32 is configured to tether a subsea well control equipment to a subsea mount arranged on a seabed comprises a load chain L, a first chain block C1 having a first gear ratio, and a second chain block C2 having a second gear ratio. The first chain block C1 is configured to convey th...

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Bibliographische Detailangaben
Hauptverfasser:	Charles Alexander Gilmour Gourley, James MacDonald Stewart
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A tethering system 32 is configured to tether a subsea well control equipment to a subsea mount arranged on a seabed comprises a load chain L, a first chain block C1 having a first gear ratio, and a second chain block C2 having a second gear ratio. The first chain block C1 is configured to convey the load chain to apply a first tension to the tethering member. The second chain block is configured to subsequently convey the load chain to apply a second tension to the tethering member; wherein the second gear ratio is higher than the first gear ratio.