Abstract: A mooring line or cable system is provided for a drillship including a hull adapted to float in water at a water-line, the mooring line being in the general form of a catenary chain line. The mooring line includes a drillship portion secured to a winch on the drillship and entraining a sheave, and a first spar buoy and an anchor portion including an anchor chain and an anchor and a second spar buoy. A two-part, remote controlled quick disconnect element is provided, one part being connected to the drillship portion and another part being connected to the anchor portion, the two parts being adapted to connect the first spar buoy and the second spar buoy together, to provide an anchored mooring line.