Semisubmersible
Definition: “Semisubmersible” or “Semisub-” is referring to Offshore drilling rigs so called because they are combining the advantages of submersible rigs with the ability to drill in Semisubmersible drilling rig. The Semisubmersible drilling rig is made of a floating structure having vertical hollow legs connected to horizontal pontoons used for ballasting with seawater for stability. It also has numerous large heavy anchors which keep it secured […]

