Triple Activity Drilling Ship

摘要

A triple activity drilling ship may be provided with two separate drilling centers, each including drilling apparatus. In addition, a trolley that is capable of supporting tubulars may be positioned between a first position within one of said drilling centers and a second position outside that drilling center. As a result, the trolley may be used to hold assembled tubulars while other activities are ongoing in one or more of the drilling centers.

主权项

1. A drilling ship comprising:
a first center including first tubular handling apparatus to drill in a hole; a second center including second tubular handling apparatus to drill in said hole; and a trolley to hang first and second tubulars, said trolley positionable in a first position under at least one of the centers and positionable in a second position displaced from under one of said centers, such that first tubulars handled by said first tubular handling apparatus and said second tubulars handled by said second tubular handling apparatus are run into said hole at different times without moving the ship by using said trolley to move said first and second tubulars over said hole.