Diverter/bop system and method for a bottom supported offshore drilling rig

摘要: A system and method for installing a fluid flow controller telescoping spools beneath an offshore bottom supported drilling rig rotary table is disclosed. Upper lower are provided initially connecting Diverter/BOP convertible between structural casing in the well permanent housing table. Clamp means clamping vent line to opening wall of during borehole through preparation setting cementing conductor casing. In that mode, adapted as diverter system. After drilled cemented cut off at its top, mandrel fitted top which end spool may be connected. The used this configuration system, or after removal connection kill outlet, low pressure blowout preventer