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公开(公告)号：US11549614B2
公开(公告)日：2023-01-10
申请号：US16614590
申请日：2018-05-25
Applicant: SAIPEM S.P.A.
Inventor： Flavio Conti , Diego Forestali
Abstract: A method of laying an off-shore pipeline (1) comprises: —installing on the seabed (3) a fixed receiving structure (4) having a redirecting device (5), —paying-out from a laying vessel (7) a pipeline (1) with the pipeline end termination device (9) vertically towards the seabed (3), —extending a damping cable (6) from the pipeline end termination device (9) through the redirecting device (5) to an underwater damping buoy (14), —connecting an underwater suspension buoy (15) to the pipeline end termination device (9), —inclining the pipeline (1) from a vertical orientation towards the horizontal orientation, using: —the suspension buoy (14) to counterbalance at least part of the weight of the pipeline end termination device (9), —the damping buoy (14) for damping the pipeline (1).
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公开(公告)号：US11280174B2
公开(公告)日：2022-03-22
申请号：US16611352
申请日：2018-05-08
Applicant: SAIPEM S.P.A.
IPC: E21B47/001 , E21B47/13 , E21B47/07 , E21B17/01 , E21B47/06 , E21B47/007
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.
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公开(公告)号：US11255602B2
公开(公告)日：2022-02-22
申请号：US16315115
申请日：2017-06-20
Applicant: SAIPEM S.P.A.
Inventor： Eric Zielinski , Nathalie Trichard , Julien Bellande , Benjamin Rodier
Abstract: A process for liquefying a natural gas comprising a mixture of hydrocarbons predominating in methane, the process comprising a first semi-open refrigerant cycle with natural gas in which any natural gas liquids that have condensed are separated from the natural gas feed stream, which stream then passes through a main cryogenic heat exchanger (4) in order to contribute by heat exchange to pre-cooling a main natural gas stream (F-P) and to cooling an initial refrigerant gas stream (G-0), a second semi-open refrigerant cycle with natural gas for contributing to pre-cooling the natural gas and the refrigerant and also to liquefying the natural gas, and a closed refrigerant cycle with refrigerant gas for subcooling the liquefied natural gas and for delivering refrigeration power in addition to the other two cycles. The invention also provides a natural gas liquefaction installation for performing such a process.
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公开(公告)号：US20210363100A1
公开(公告)日：2021-11-25
申请号：US16635099
申请日：2018-08-03
Applicant: SAIPEM S.p.A.
Inventor： Andrea Zambianco , Donato Montrone , Rossella Polizzi , Massimiliano Sala , Gioia Usai
IPC: C07C273/04 , C07C273/16
Abstract: A urea production process comprises a step of synthesis of urea by reaction of ammonia and carbon dioxide, where at least part of the carbon dioxide for the urea reaction synthesis is produced in an oxy-combustion process; the oxy-combustion process is specifically a flameless oxy-combustion process.
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155.发明申请公开(公告)号：US20210323018A1
公开(公告)日：2021-10-21
申请号：US17272552
申请日：2019-09-05
Applicant: SAIPEM S.p.A.
Inventor： Francesco Simone , Valerio Bregonzio , Momtchil Kaltchev
Abstract: A machine for making a protective joint has a guide system, which is selectively clampable about a pipeline on opposite sides with respect to the annular junction portion and configured for defining an annular path about the annular junction portion; at least one heating unit moveable along the annular path and configured for heating the annular junction portion and moveable along the annular path; at least one spray unit moveable along the annular path and configured for applying at least one polymer material to the annular junction portion; and an extrusion die moveable along the annular path and configured for applying a protective foil about the annular junction portion.
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Patent Agency Ranking
156.发明申请公开(公告)号：US20210179233A1
公开(公告)日：2021-06-17
申请号：US16771527
申请日：2018-12-07
Applicant: SAIPEM S.p.A.
Inventor： Alberto Serena , Giovanni Massari , Diego Lazzarin
Abstract: A system for power and data transmission in a body of water to unmanned underwater vehicles comprises a floating surface station for generating electric energy and receiving and transmitting data; an underwater station connectable to at least one unmanned underwater vehicle; at least one submerged depth buoy; and an umbilical, which comprises a power transmission line and a data transmission line, is mechanically and electrically connected to the surface station and to the underwater station, and is mechanically coupled to the depth buoy so that the umbilical comprises a first umbilical section that is stretched between the underwater station and the depth buoy and a second umbilical section that extends loose between the depth buoy and the surface station.
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公开(公告)号：US11033857B2
公开(公告)日：2021-06-15
申请号：US16337613
申请日：2017-09-19
Applicant: SAIPEM S.P.A.
Inventor： Lorenzo Bruno , Rosario Galati , Lino Carlessi
Abstract: A counter-current cross-flow heat exchanger for heating a first gas and cooling a second gas, includes modules in fluid communication with one another, each module being positioned on a plane, the planes mutually overlapping. Conduits allow entry and exit of the first and second gases into and out of the exchanger. Each module has heat exchange plates, with heating and cooling faces. The plates are orthogonal to the module plane and parallel to define alternating heating and cooling spaces. The first gas crosses each heating space with a direction substantially parallel to the plane of each module and the second gas crosses each cooling space with a direction substantially orthogonal to the plane of each module. The cooling spaces between adjacent modules are in direct fluid communication. The heating spaces between adjacent modules are in fluid communication with one another by conduits/conveyors, creating a serpentine path.
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公开(公告)号：US20210148075A1
公开(公告)日：2021-05-20
申请号：US17045111
申请日：2019-04-02
Applicant: SAIPEM S.P.A.
Inventor： Vincent George MCCARTHY
Abstract: An assembly for lifting a payload of an offshore platform is provided. The offshore platform includes a support structure supporting the payload. The payload includes a main deck and a column directly connected to the support structure, the column supporting the main deck. The assembly includes a lower lifting device, having a welding surface weldable to a welding portion of the column and an upper lifting device having a coupling interface adapted to couple to a coupling portion of the payload and a plurality of tension rods, connecting the lower lifting device and the upper lifting device. At least some tension rods of the plurality of tension rods extend for a rod length along a rod direction (X-X) between the lower lifting device and the upper lifting device. At least some tension rods of the plurality of tension rods are pre-tensioned to exert a compressive action to the payload.
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公开(公告)号：US20210071287A1
公开(公告)日：2021-03-11
申请号：US16771951
申请日：2018-12-20
Applicant: SAIPEM S.p.A.
Inventor： Giulio Paci , Mara Quattrocchi , Lino Carlessi , Alberto Serrafero
Abstract: A duplex stainless steel for use in a urea production plant and/or in a urea production process, containing in weight percentage (% w): C 0.03 or less; Si 0.5 or less; Mn 2.5 or less; Cr from more than 30.0 to 35.0; Ni from 5.5 to 8.0; Co from 0.01 to 0.8; Mo from 2.0 to 2.5; W 2.5 or less; N from 0.3 to 0.6; Cu 1.0 or less; and having one or more of: Ca 0.0040 or less; Mg 0.0040 or less; one or more rare-earth elements in a total amount of 0.1 or less; the balance being Fe and impurities; and satisfying the relationship: Z=1.062 (Ni+Co)+4.185 Mo is between 14.95 and 19.80.
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公开(公告)号：US10900672B2
公开(公告)日：2021-01-26
申请号：US15576202
申请日：2016-04-15
Applicant: SAIPEM S.p.A.
Inventor： Paolo Minola
IPC: F24F1/01 , F24F1/0007 , F24F5/00 , F04F5/16 , F04F5/54 , F24F7/06 , F24F13/26 , F24F1/0029
Abstract: A blower device includes a Coanda effect fluid flow amplifier having a suction opening, an outlet opening to provide an amplified fluid flow, an inner passage along an amplifier central axis passing through the suction opening and the outlet opening. An inlet conduit inputs pressurized fluid into the inner passage for drawing the ambient fluid from the suction opening to the outlet opening by Coanda effect, achieving amplified flow. A diffuser downstream of the amplifier includes diffuser side walls that delimit a diffuser inner side surface extending about a diffuser central axis arranged along the amplifier central axis and terminates with a first flow inlet open end facing the outlet opening, and an opposite second flow outlet open end delivers further amplified fluid flow. At least one side opening is upstream of the second flow outlet open end to allow additional ambient fluid to be sucked into the diffuser.
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