公开(公告)号：US20210207454A1

公开(公告)日：2021-07-08

申请号：US17055246

申请日：2019-05-09

Applicant: SAIPEM S.P.A.

Inventor： Paolo Mario Alessandro ALLARA ,  Anna SANSONE

IPC: E21B41/00 ,  G01S13/93 ,  E21B19/00 ,  G01S13/58 ,  F16P3/14

Abstract: An anti-collision method includes storing information on a current position of at least one vehicle within a target work volume, scanning the target work volume by a radiofrequency radiation signal to detect the presence of at least one human operator within the target work volume, determining the current position of the at least one human operator within the target work volume, comparing the current position of the at least one human operator with the current position of the at least one vehicle, and, if the current position of the at least one human operator at least partially overlaps the current position of the at least one vehicle, activating at least one safety device.

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.