초록 ▼

An offshore structure for deepsea production of this invention is designed for achieving economy both in installation and in operation. It consists mainly of a base to be founded on a sea-bed, a buoyant body having a separator segregated from the sea for storing and separating the produced fluids an

An offshore structure for deepsea production of this invention is designed for achieving economy both in installation and in operation. It consists mainly of a base to be founded on a sea-bed, a buoyant body having a separator segregated from the sea for storing and separating the produced fluids and an elongate tensioned member for connecting the base and the buoyant body and transporting the produced fluids from the well through the base to the separator near the surface of the sea. The separator has a compartmentalized outer wall for controllably variable ballasting and deballasting.

대표청구항 ▼

An offshore structure for deepsea production comprising a base founded on a sea-bed, a buoyant body of double-wall structure having an outer wall and a containment means which is integrally a part of said buoyant body and is enveloped by said outer wall such that the pressure therein is maintained i

An offshore structure for deepsea production comprising a base founded on a sea-bed, a buoyant body of double-wall structure having an outer wall and a containment means which is integrally a part of said buoyant body and is enveloped by said outer wall such that the pressure therein is maintained independently of the pressure outside said buoyant body, said containment means and said outer wall defining therebetween a controllably ballastable and deballastable space, a leg connected to said base and to said buoyant body so as to substantially prevent vertical motions of said buoyant body, and a production riser connecting said containment means with a subsea production tree which is independent of said base.