Abstract: Method for mooring an offshore structure includes: providing a mooring line having one end connected to the sea bed and a connector at a free end; lifting the free end onto a deck of an anchor line handling vessel; connecting on the anchor line handling vessel a chain tensioner with a connection side to the connector; providing a working chain having a short tensioning part and a long installation part into the entry side of the chain tensioner; holding a free end of the installation part while lowering the chain tensioner below water level; picking up a free end of a pendant attached to the offshore structure, and attaching it to the free end of the installation part in an interconnect position on the anchor line handling vessel; placing the interconnect position overboard; connecting a lifting cable on the anchor line handling vessel to the tensioning part below water level; and exerting an upward tensioning force on the tensioning chain part.

Abstract: Method for mooring an offshore structure includes: providing a mooring line having one end connected to the sea bed and a connector at a free end; lifting the free end onto a deck of an anchor line handling vessel; connecting on the anchor line handling vessel a chain tensioner with a connection side to the connector; providing a working chain having a short tensioning part and a long installation part into the entry side of the chain tensioner; holding a free end of the installation part while lowering the chain tensioner below water level; picking up a free end of a pendant attached to the offshore structure, and attaching it to the free end of the installation part in an interconnect position on the anchor line handling vessel; placing the interconnect position overboard; connecting a lifting cable on the anchor line handling vessel to the tensioning part below water level; and exerting an upward tensioning force on the tensioning chain part.

Abstract: The invention relates to an anchor line installation method comprising the steps of: connecting the anchor line (2) to the seabed with an anchoring device (4), providing an anchor line part (7) on the floating structure (3), picking up the free end of the anchor line (2) with an installation vessel (1), providing a first connector element (10) on the free end of one of the anchor line (2) and the floating structure anchor line part (7), either prior or after picking up said free end, providing a second connector element (12) on the other of the anchor line (2) and the floating structure anchor line part (7), extending a pulling line (8) between the second connector element (12) and the installation vessel, the pulling line being engaged on the installation vessel (I) with the first connector element (10), lowering the first and second connector elements (10, 12) in the water, from the installation vessel (I), and hauling in the pulling line (8) with a pulling device (13) on the installation vessel (I), thereb

Abstract: A method of mooring a vessel to a subsea anchoring element (1) connected to the seabed, and comprising a chain section (3) which is not longer than half the water depth, and which is at or near its free end provided with a coupling member (4), is characterised by the steps of: lowering a multi-strand anchor line (9) from a vessel (8), the multi-strand anchor line (9) being at its free end attached to a connector (10), and attaching the connector (10) to the coupling member (4). The present disclosure also provides an anchor line repair or exchange method comprising the steps of: disconnecting the first multi-strand anchor line (16) from the chain section, lowering a second multi-strand anchor line (9) from a vessel (8), the second multi-strand line (9) being at its free end attached to connector (10), and attaching the connector (10) of the second multi-strand line (9) to the coupling member (4).