After drilling a well at M/7-block situated in the North Sea Offshore Marine Contractors were requested to move the Paragon C-461 to the M/7-A platform to perform drilling services on behalf of Oranje Nassau Energie B.V.
Before the rig could be positioned at the M/7-A platform gravel dumping was required at the to level the seabed from previous jack-up footprints. The gravel dumping was executed successfully at the end of March 2016 under the supervision of OMC using Tideway’s DP2 Fallpipe Vessel ‘Flintstone’.
Muller Dordrecht’s En Avant 10 (55ts BP / 4100 BHP) and Unterweser Reederei’s URAG Ems (74ts BP / 7180 BHP) were chartered for tow assistance and positioning duties. Augustea’s Carlo Magno (153ts BP / 10.880 BHP) was chartered for towing, positioning and anchor handling duties.
The rig departed the old drilling location on the evening of 20th April and arrived at the M/7-A a short tow later that evening. Paragon C-461 was placed on its stand-off position where four anchors were run. With a horizontal tolerance of only 50 centimetres when alongside in final position, the positioning of the rig proved a challenge.
Late evening of the 21st April Paragon C-461 was successfully manoeuvred into final drilling position at only 17 cm off its intended position. After preloading Paragon C461 was jacked up to its final airgap and commenced drilling operations at the M/7-A platform.
Photo’s provided by Captain Nils Sandifort of the En Avant 10.