Dril-Quip BigBore II Wellhead System used in Record Setting 14” Casing String Weight


On September 14, 2015, BHP Billiton and the Deepwater Invictus floating drilling vessel successfully ran and set 14” casing with a maximum recorded string weight of 2.13 million lbs. on a well being drilled in Green Canyon. This casing string runs to a depth of 26,628 feet. The string weight represents 85% of the rigs rated capacity. The casing was hung-off inside a Dril-Quip BigBore II subsea wellhead system. It is reported that this is a record hook weight casing load, for this size casing, that has ever been run in the Gulf of Mexico.