SSD 5 : Subsea disconnect used during drilling a subsea well in case the floating rig moves to an extreme that begins to threaten the shear resistance of the riser or the drill string
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}