Enterprise De Recherches Et D'activites Petrolieres (e.r.a.p.)

Guy Soulie

Michel Iato

Method for externally connecting a riser pipe, at great depths beneath a body of water, to the B.O.P Stack of a well, said riser pipe and B.O.P Stack carrying registering eccentric tubes. In this process the riser pipe is centered on the B.O.P Stack by resting a bearing surface on the outside of the bottom of the riser pipe on a bearing surface on the outside of the top of the B.O.P. Stack, bringing the eccentric tubes into registration by rotating the riser pipe relative to the B.O.P. Stack and mechanically connecting, seating and locking the riser pipe to the B.O.P Stack, while separating the bearing surface on the bottom of the riser pipe from the bearing surface on the top of the B.O.P Stack and, finally, connecting the eccentric tubes. SP

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Morlaas, France

Guy Soulie