Chinese oil company CNOOC has this week completed the drilling of the first development well at the Lingshui 17-2 (LS 17-2) gas field development in the South China Sea, offshore China.
CIMC-Raffles, the owner of the Bluewhale I semi-submersible drilling rig, that was used for the operation, shared this news.
“The water depth of this well is more than 1,200 meters, and the completion depth is nearly 4,200 meters,” CIMC said.
The ultra-deepwater drilling unit built by CIMC Raffles is able to operate in a water depth of 3,658 meters and has a drilling depth capability of up to 15,240 meters.
It is designed with dual hoisting tower and facilities with DP3 system and preliminary mooring position system. The rig is 117 meters long, 92.7 meters wide, 118 meters tall. It weighs 43,000 tons.