Structure of the service semi - submersible self - propels for the production and drilling of the wide oil

摘要

P a.batiment of service semi - submersible self - propels for the production of oil and the operations of welding is deroulant on a flat - the form of a bore in the sea. / p & & p & b.caracterise by a bridge of service for the operations of service, the means cooperating between them, disposed at the - bottom of this bridge of service in order to monitor the buoyancy of the structure and the elevation of the bridge of service at the - above sea level, and a set of auxiliary devices to ensure the operations of service sea on the flat - the form of a bore of the wide at sea on the basis of this bridge of service. / p