SEMI-SUBMERSIBLE RIG HAVING MOVABLE DECK ON DRILL FLOOR

摘要

The present invention relates to a semi-submersible rig having a movable deck on a drill floor. The present invention comprises: a deck box supported by a pontoon and a column, wherein a moon pool which is a hole for a submarine drilling work penetrates a center portion; a drill floor supporting a derrick in the upper portion of the deck box; the derrick installed on the drill floor corresponding to the moon pool and having a tool for a submarine drilling work; and at least one movable deck installed on the drill floor corresponding to a position of the moon pool, closing the portion of the moon pool or the entire moon pool in the installation position, and opening the portion of the moon pool or the entire moon pool in the separation position.;COPYRIGHT KIPO 2015