DIVERLESS UNIFIED SUPPORT TUBE

Abstract: a riser support is disclosed that is completely integrated into the riser balcony of a floating production storage and offloading (fpso), which serves both rigid and flexible risers. this riser support presents a versatility that allows the use of flexible or rigid risers with some variation in their inner diameters and the interconnection can be carried out on the port or starboard side. the diverless unified support tube (dust) is characterized in that it comprises an upper cone, a guide tube and a centralizer, responsible for centralizing the hang-off adapter and locking the bend stiffener. the application of dust can promote a reduction in the length of rigid pipes in the subsea arrangement by allowing keelhauling interconnections, in addition to enabling the optimization of the rigid riser interconnection operation and accelerating the ramp-up of new spus.

Inventor(s): Bruno Pinho Dos Reis, Jorge Gomes de Melo Medeiros, Gilnei Reckziegel, Roberto Pereira Ferreira, Raphael Moreira De Brito, Claudio Violante Ferreira, Flavio Barroso De Mello

CPC Classification: E21B19/004 (Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables)

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