A METHOD AND AN ARRANGEMENT FOR MOORING OF A SHIP, PARTICULARLY A SHIP FOR OIL AND/OR GAS PRODUCTION

摘要

When mooring a production ship (10) above a submarine production well, minimum three (usually e.g. eight) anchor lines are used in the form of mooring chains (16b, 16c, 16a', 16b', 16c') each extending from a stationary point at the seabed to a separate attachment point on the ship (10). At least one anchor line (16b, 16c) (of a minimum line number of three) has a fixed length and leads to an attachment hook (20) on-board the ship, while the or each of the remaining anchor lines (16a', 16c', 16d'), as known per se, has a changeable, shortenable length between the stationary seabed point and a point (34) on the ship (10), e.g. by means of a winch (30) for each of said longitudinally changeable anchor lines (16a', 16c', 16d'), simplifying the mooring arrangement constructively and the mooring operations functionally.