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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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93.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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94.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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Patent Agency Ranking
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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公开(公告)号：US10889041B2
公开(公告)日：2021-01-12
申请号：US14433236
申请日：2013-10-08
Applicant: SAIPEM S.p.A.
Inventor： Valerio Bregonzio , Momtchil Kaltchev
IPC: B29C48/00 , B29C48/151 , B29C48/25 , B29C65/00 , B29C65/02 , F16L13/02 , B29C63/06 , F16L58/10 , F16L58/18 , B29C48/08 , B29C48/35 , B29C65/52 , B29C48/02 , B29C65/48 , B29C48/305 , B29K23/00 , B29L9/00 , B29L23/00
Abstract: A method of applying protective sheeting of polymer material to a pipeline, such as on a J-lay rig, includes the steps of driving a carriage along an annular path about the pipeline; extruding and simultaneously winding the protective sheeting about the pipeline via an end extrusion die fitted to the carriage; compressing the protective sheeting on the pipeline, directly downstream from the end extrusion die, so the protective sheeting adheres to the pipeline; and controlling the drive, extrusion, and compression steps so that the time lapse between expulsion of a cross section of protective sheeting from the end extrusion die and compression of the same cross section of protective sheeting is less than one second.
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100.发明申请公开(公告)号：US20200300056A1
公开(公告)日：2020-09-24
申请号：US16649215
申请日：2018-09-11
Applicant: SAIPEM S.p.A.
Inventor： Graziano BUFFARINI , Vito FORTUNATO
IPC: E21B33/064 , E21B33/06 , E21B41/04 , E21B33/035
Abstract: A lower stack assembly of a blowout preventer for a hydrocarbon extraction well includes a safety function that can be hydraulically activated to rapidly cut off a pipeline section. The assembly includes a first valve and a first fluidic connection connecting the first valve and the least one safety function, so that the first valve selectively cuts off a flow of fluid directed towards the safety function. The assembly further includes a port operatively connected to the first valve, cooperating with a remotely operated vehicle to transmit a pilot signal to the first valve, an accumulator housing pressurized fluid, and a second fluidic connection. By cooperating with the first valve, the accumulator supplies pressurized fluid to the safety function to activate it. The second fluidic connection connects the accumulator and the first valve, so that the second fluidic connection remains operative during the entire working life of the assembly.
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