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公开(公告)号:US20210299797A1
公开(公告)日:2021-09-30
申请号:US17262104
申请日:2019-07-26
Applicant: SAIPEM S.p.A.
Inventor: Maurizio De Santo
IPC: B23K31/02 , B23K37/02 , B23K37/053
Abstract: A system for carrying out operations along an annular junction portion of a pipeline is provided with: a frame comprising a C-shaped structure, which is configured to be selectively clamped about a pipeline extending along a longitudinal axis and near an annular junction portion, and at least one driving device arranged along an arc of an annular path and coupled to the structure; a support arm configured to rest on the pipeline and connected to the structure for maintaining the laying plane of the driving device substantially orthogonal to the longitudinal axis; a carriage slideably coupled to the driving device; and at least one operating device configured to carry out operations along the annular junction portion and cantilever supported by said annular segment.
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公开(公告)号:US20200368679A1
公开(公告)日:2020-11-26
申请号:US16637217
申请日:2018-08-10
Applicant: SAIPEM S.P.A.
Inventor: Sylvain LEFEBVRE , Richard SURPRENANT , Ferrere CLERVEAUX , Gabriel VEILLEUX , David ZHANG
Abstract: A desulfurization gas process includes water vapor, CO2 and SOx (x=2 and/or 3). In a treatment unit, the gas contacts a cooled alkaline aqueous solution having a temperature lower than an initial gas temperature, water and a carbonate of an alkali metal, to cool the gas, condense some water vapor and absorb SOx in the carbonate-containing solution, produce an SOx-depleted gas and an acidic aqueous solution including sulfate and/or sulfite ions. The SOx-depleted gas and a portion of the acidic aqueous solution can then be withdrawn from the treatment unit. Carbonate of the alkali metal can be added to remaining acidic aqueous solution to obtain a made-up alkaline aqueous solution. This solution can be cooled and reused as the cooled alkaline aqueous solution. An SOx absorbent solution includes a bleed stream from a CO2-capture process, sodium or potassium carbonate, and an acidic aqueous solution obtained from desulfurization.
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公开(公告)号:US10788147B2
公开(公告)日:2020-09-29
申请号:US15505295
申请日:2015-08-21
Applicant: SAIPEM S.P.A.
Inventor: Paolo Bonel , Lorenzo Granelli
IPC: B23K37/053 , F16L1/20 , B63B35/03 , F16L1/19 , F16L13/02 , B23K37/02 , B23K31/02 , G01B11/25 , B23K101/10
Abstract: A method of joining a first pipe section to a second pipe section includes positioning the two pipe sections in an end-to-end configuration to define therebetween a joint to be welded, measuring the degree of alignment of the pipe sections when they are in the end-to-end configuration in a position ready for welding, ascertaining the relative movement required of the pipe sections in order to improve their alignment, effecting the relative movement so ascertained, and welding together the two pipe sections. The method may include the use of geometric data of the end of the pipes in order to ascertain the relative movement required of the pipe sections. A control unit may be used to calculate, using such data, a target orientation that lines up the pipe sections. The measuring step may be performed using, for example, a laser or a camera and backlight.
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公开(公告)号:US20200292102A1
公开(公告)日:2020-09-17
申请号:US16765723
申请日:2018-11-22
Applicant: Saipem S.p.A.
Inventor: Matteo DUCCESCHI , Nicola D'INCECCO , Carlo GALIETTI , Paolo NONNE , Lorenzo PENATI , Luca CEVASCO , Diego PARAZZOLI
Abstract: A method of aligning first and second pipes end-to-end in a position ready for welding. Each pipe has an end bevelled with a shape scanned and stored in memory of a control unit. At least one of the pipes has machine readable codes distributed around their circumference of the pipe. The method includes effecting relative movement of the ends of the first and second pipes towards each other, reading at least one of the codes with a reader, and ascertaining the relative movement required to align the pipes in accordance with a target orientation. The relative movement is ascertained with information provided by the read code and the shapes of the bevelled ends stored in the control unit memory. In other aspects, a closed loop control method and machine-learning may be used to align the pipes. A pipe-laying vessel including pipe handling equipment and the control unit is also provided.
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公开(公告)号:US10434468B2
公开(公告)日:2019-10-08
申请号:US14768404
申请日:2014-02-25
Applicant: SAIPEM S.p.A.
Inventor: Lino Carlessi , Lorenzo Bruno , Rosario Galati
IPC: B01D53/58 , B01D53/86 , C07C273/04 , B01D53/90
Abstract: A method of removing ammonia from a continuous vent gas stream of a urea plant, in particular of a medium-pressure section of a urea plant, includes a step of removing ammonia from the continuous vent gas stream of the urea plant using a controlled-combustion process including at least a first lean, oxygen-poor combustion step performed in the presence of an understoichiometric amount of oxygen acting as the sole comburent, and in a reducing atmosphere of hydrogen.
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公开(公告)号:US10415350B2
公开(公告)日:2019-09-17
申请号:US15546570
申请日:2016-02-05
Applicant: SAIPEM S.p.A.
Inventor: Alessandro Radicioni , Fabrizio Gardini , Massimo Fontolan
IPC: E21B43/017 , E21B43/36 , E21B43/01
Abstract: An underwater hydrocarbon processing facility has at least one fluid processing clusters provided with modules having, each, one fluid processing device and a plurality of first connection members configured to define the inlet and the outlet of the process fluids; and an interconnection unit having a plurality of second connection members defining inlet and outlet for the process fluids and configured to be operatively coupled to corresponding first connection members configured to operatively interconnect the modules.
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87.
公开(公告)号:US10166714B2
公开(公告)日:2019-01-01
申请号:US15029550
申请日:2014-10-17
Applicant: SAIPEM S.p.A.
Inventor: Cristian Scaini , Valerio Bregonzio
IPC: F16L13/02 , F16L58/02 , B29C63/06 , B32B37/00 , F16L58/18 , B29C63/04 , B29C65/00 , F16C13/02 , B29C65/36 , B29C65/46 , B29C53/56 , F16L58/10 , B29K23/00 , B29L23/00 , B29K105/24
Abstract: A roller for compressing protective sheeting of polymer material around a pipeline rotates about a given or designated axis of rotation and has a shaft; and a first tubular portion which extends about the shaft and varies in elasticity along the given or designated axis of rotation; more specifically, the first tubular portion is of greater elasticity at the ends of the roller than at the center of the roller.
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公开(公告)号:US10156301B2
公开(公告)日:2018-12-18
申请号:US15523566
申请日:2015-11-03
Applicant: SAIPEM S.p.A.
Inventor: Stefano Bianchi , Mauro Mottini
Abstract: A support for an underwater pipeline, in particular configured to elevate an underwater pipeline on a bed of a body of water, with a connecting frame configured to fit to a portion of underwater pipeline extending along a longitudinal axis; and at least two legs, which are hinged to the connecting frame, and movable between a contracted configuration and an extended configuration in which they extend crosswise to the underwater pipeline to rest on the bed of the body of water.
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公开(公告)号:US20170356254A1
公开(公告)日:2017-12-14
申请号:US15532878
申请日:2015-12-04
Applicant: Saipem S.p.A.
Inventor: Alberto SERENA , Diego LAZZARIN , Gabriele CADEDDU
IPC: E21B17/10 , F16L3/205 , E21B33/038 , F16L1/12
CPC classification number: E21B17/1078 , E21B19/24 , E21B33/038 , E21B41/0007 , F16L1/123 , F16L3/205
Abstract: A connection assembly for engaging a tubular member underwater to restrain the tubular member from radial movement relative to the connection assembly includes a plurality of pads for engaging the tubular member at circumferentially spaced positions; and a plurality of biasing arrangements, each for biasing a respective pad radially inwardly into engagement with the tubular member; wherein each biasing arrangement includes a pre-loadable, mechanical, compressed spring arrangement for resiliently pressing its respective pad against the tubular member. The assembly need not employ any hydraulic components.
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公开(公告)号:US09694334B2
公开(公告)日:2017-07-04
申请号:US14902814
申请日:2014-07-04
Applicant: SAIPEM S.p.A.
Inventor: Paolo Minola
IPC: B01F3/00 , B01F3/04 , B01J4/00 , B01J10/00 , B01J19/00 , B01J19/24 , C07C273/00 , C07C273/02 , C07C273/04
CPC classification number: B01J4/002 , B01F3/04248 , B01F3/04262 , B01F2003/0429 , B01F2003/04304 , B01F2003/04319 , B01F2003/04368 , B01J10/002 , B01J19/24 , B01J2219/1946 , B01J2219/24 , C07C273/02 , C07C273/04 , Y02P20/142
Abstract: A gas diffusion system configured to feed a gas stream, in particular a passivating gas stream, into an apparatus, in particular a decomposer, of a urea plant; the system extends along an axis and has a gas feed conduit having an outlet from which the gas flows substantially parallel to the axis, and a diffuser assembly configured to diffuse the gas supply from the conduit; the diffuser assembly is shaped so as to intercept the gas stream flowing axially from the outlet, and divert the gas stream substantially radially with respect to the axis and uniformly about the axis.
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