COSL-1 COSL-2 COSL-3 COSL-4
Main specification
Maximum drilling depth
7000m, 4-1/2" drill pipe
6000m, 5"drill pipe
Maximum hook load
450 tons
Accommodation
90
Mud pumps
gem 1600 horsepower x2
Draw works
gem JC 70D 2000 horsepower
