دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a self-propelled floating offshore drilling unit that is a ship constructed to permit a well to be drilled from it. Although not as stable as semisubmersibles, drill ships are capable of drilling exploratory wells in deep, remote waters. See floating offshore drilling rig.

n: A specially designed ship used to drill a well at an offshore location.