公开(公告)号：US20200165914A1

公开(公告)日：2020-05-28

申请号：US16611352

申请日：2018-05-08

Applicant: SAIPEM S.P.A.

Inventor： Paolo Mario Alessandro ALLARA ,  Davide Maria GAVIRAGHI ,  Giuseppe Battista ABBATE

IPC: E21B47/00 ,  E21B17/01 ,  E21B47/06 ,  E21B47/12

Abstract: A method for determining the shape and position of an underwater riser extending from a floating platform includes calculating a deformed shape of the riser by means of a numerical model of the deformed shape of the riser as a function of a plurality of acceleration values and of a plurality of position values in predetermined points of the riser, detecting acceleration values of the riser in a plurality of detection points along a longitudinal extension of the riser, detecting the water pressure values in at least some of the detection points, and calculating the position values as a function of the measured water pressure values.