Method of temporarily anchoring a mobile offshore drilling unit (20) at an offshore drilling site (11) comprises: laying out a plurality of sea floor (13) anchoring assemblies (la-h) having a connection unit (4a), an anchor line (2a) and a sea floor anchor (3a); bringing the drilling unit (20) to the drilling site (11); moving, by dynamic positioning, the drilling unit (20) to a position substantially vertically above each respective connection unit (4a), lowering and connecting a drilling unit anchor line (22) with the respective anchoring assembly (la-h) via the connection unit (4a) and a connection member (23); and tensioning up each of the drilling unit anchor lines (22) such as to anchor the mobile offshore drilling unit (20) at the offshore drilling site (11) via the plurality of anchoring assemblies (la-h). There is also provided a connection unit (4a), an anchoring assembly (la-h) and a set of anchoring equipment. (Fig. 17) ut 1 a Fig. 17 1a-h Fig. 18
OFFSHORE ANCHORING METHODS AND SYSTEMS
2025-05-15
Patent
Electronic Resource
English
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |