DRILLING OFFSHORE STRUCTURE HAVING SUPPORT BARGE SHIP AND OPERATION METHOD OF THE DRILLING OFFSHORE STRUCTURE

摘要

The present invention relates to a method of operating a drilling operation pre-mounted drilling offshore structure and a pre-drilled drilling operation, and more particularly, to a method of operating a semi-submersible barge type offshore support vessel by ballasting It is a structure capable of storing BOP stacks including drilling pipes and risers. By carrying these equipments before drilling and moving them to semi-rig vessels to provide equipment related to drilling, the semi-It is easy to arrange the module (top-side module), and it is relatively easy to design and dry. In case of emergency during the drilling process, the semi-rigged main line is separated from the drilling support line, and the drilling pipe and the riser The grasping portion provided on the drilling work support line grasps the drilling pipe and the riser, The cutting part installed on the support line of drilling work is divided into the drilling pipe and riser, so that it can separate the risk that may occur in case of need in the semi-By installing a cylinder arm for motion compensation and shock avoidance to the semi-rigid main line, drilling can be safely performed even during waves.;