A TRIPLE ACTIVITY SYSTEM FOR DRILLING OPERATIONS

摘要

This invention relates to a drilling rig or a drill ship having a first activity centre with a main well, a second activity centre with an auxiliary well and a third activity centre with offline casing and drill pipe stand-building capabilities. The offline casing and drill pipe stand-building facility is a standalone feature and can be located in the forward or aft side of a drilling rig or drill ship depending on the choice of the builder or operator.