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公开(公告)号：US11828113B2
公开(公告)日：2023-11-28
申请号：US17416944
申请日：2019-12-19
发明人： Luiz Carlos De Lemos Junior , Andre Ramiro Amorim , Gustavo Queiroz Hepner , Frederico Nicoletti de Fraga , Joao Carlos Carvalho Gouveia , Ivan Carlos Pimentel da Cruz , Yann Brouard , Daniel Karunakaran
IPC分类号： E21B17/08 , E21B17/01 , E21B33/038 , E21B41/10
CPC分类号： E21B17/085 , E21B17/012 , E21B33/038 , E21B41/10
摘要： An end fitting for a subsea riser comprises an engagement head to be engaged with a subsea foundation in a vertically downward longitudinal direction. A structure of the end fitting surrounds a longitudinally extending flow axis and is arranged to bear a tensile load on a load path extending longitudinally from the engagement head parallel to the flow axis. The structure includes a pivot joint assembly having a first part attached to or integral with the engagement head and a second part pivotable relative to the first part about a centre of rotation substantially aligned with the flow axis. The structure can be fixed to the engagement head or removably attached to the engagement head. The engagement head supports an upwardly facing connector hub that is offset laterally from the flow axis. A connector pipe in fluid communication with the connector hub extends from the flow axis to the connector hub. A counterweight is opposed to the connector hub and the connector pipe about the flow axis.
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公开(公告)号：US20220065366A1
公开(公告)日：2022-03-03
申请号：US17298937
申请日：2019-11-28
摘要： Lined pipelines with different inner diameters are spooled successively onto a reel while their constituent pipe stalks are cyclically pressurised internally to combat wrinkling of the liner. A first, variable diameter pig is advanced to a trailing end of a first pipeline. A transition joint is attached to the trailing end of the first pipeline to effect a transition from the inner diameter of the first pipeline to the different inner diameter of a second pipeline. A leading end of the second pipeline, containing a second pig, is attached to the transition joint. The first pig is driven through the transition joint into the second pipeline. The diameter of the first pig changes to match the inner diameter of the second pipeline. The first and second pigs are then driven along the second pipeline when assembling the second pipeline from a succession of pipe stalks.
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公开(公告)号：US11846369B2
公开(公告)日：2023-12-19
申请号：US17611516
申请日：2020-05-13
摘要： A tensioner system holds back elongate products such as subsea pipelines being laid into water. The system comprises at least one endless circulatory track and an array of rollers supporting the track. Each of the rollers of the array is mounted for rotation around a respective shaft. At least one of the shafts comprises a load pin that is arranged to sense loads applied to the surrounding roller in directions normal to an axis of rotation of that roller.
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公开(公告)号：US20230120150A1
公开(公告)日：2023-04-20
申请号：US17913969
申请日：2021-03-24
IPC分类号： E21B17/01
摘要： A subsea catenary riser comprises a rigid riser pipe that is suspended from a floating support on the surface and extends through a sagbend to the seabed. A hang-off interface allows rotation or pivoting of the riser pipe relative to the support about mutually orthogonal horizontal axes. A subsea buoy is positioned on the riser pipe above the sagbend. The buoy applies buoyant upthrust force to the riser pipe via an attachment interface that allows rotation or pivoting of the riser pipe relative to the buoy about mutually orthogonal horizontal axes. In response to movement of the support, the riser pipe deflects with S-shaped curvature to vary the inclination, relative to the buoy, of the portion of the riser pipe to which the buoy is attached. The curvature comprises mutually opposed curves respectively above and below the buoy, joined by a region of inflection that coincides with the buoy.
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公开(公告)号：US20220205558A1
公开(公告)日：2022-06-30
申请号：US17611516
申请日：2020-05-13
摘要： A tensioner system holds back elongate products such as subsea pipelines being laid into water. The system comprises at least one endless circulatory track and an array of rollers supporting the track. Each of the rollers of the array is mounted for rotation around a respective shaft. At least one of the shafts comprises a load pin that is arranged to sense loads applied to the surrounding roller in directions normal to an axis of rotation of that roller.
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公开(公告)号：US20220065049A1
公开(公告)日：2022-03-03
申请号：US17275798
申请日：2019-09-12
发明人： Nelson Bittar Romeu , Andre Ramiro Amorim , Marcio Nogueira Barcellos , Daniel Sahonero Rodrigues , Flavio Lage Bormann
摘要： A method of installing a subsea riser includes placing an elongate negatively-buoyant support on the seabed and, when laying the riser on the seabed, guiding a riser portion onto the support to extend along and be cradled by the support. A hogbend region of the riser is then formed by conferring positive buoyancy on the support to lift the support and the riser portion away from the seabed. An element of the support includes a riser support disposed in a longitudinally extending open-ended gap between buoyancy volumes disposed on opposite sides of the gap. Coupling formations such as hinge portions can couple the element to a like element. When so coupled, the gaps of those elements align to define an upwardly opening, longitudinally extending groove to receive the riser.
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公开(公告)号：US12006776B2
公开(公告)日：2024-06-11
申请号：US17604291
申请日：2020-04-15
发明人： Andre Ramiro Amorim , Davi Couto Neves Junior , Alberto Lima Dos Santos , Mauricio Suarez de Oliveira
CPC分类号： E21B17/012 , B63B35/03 , E21B17/015 , E21B19/004 , E21B43/0107
摘要： A method of installing a wave-configuration subsea riser of unbonded flexible pipe comprises lowering the riser progressively into the sea from an installation vessel while suspending an elongate clump weight in a catenary shape that comprises first and 5 second limbs extending upwardly from a conjoining bottom portion. An upper end of the first limb, at a distal end of the clump weight, is attached to the riser and an upper end of the second limb, at a proximal end of the clump weight, is suspended from a winch or crane of the vessel. While lowering the riser from the vessel, the weight load applied to the riser by the clump weight is controlled by adjusting the relative lengths of the first 0 and second limbs of the clump weight.
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公开(公告)号：US20220195809A1
公开(公告)日：2022-06-23
申请号：US17604291
申请日：2020-04-15
发明人： Andre Ramiro Amorim , Davi Couto Neves Junior , Alberto Lima Dos Santos , Mauricio Suarez de Oliveira
摘要： A method of installing a wave-configuration subsea riser of unbonded flexible pipe comprises lowering the riser progressively into the sea from an installation vessel while suspending an elongate clump weight in a catenary shape that comprises first and 5 second limbs extending upwardly from a conjoining bottom portion. An upper end of the first limb, at a distal end of the clump weight, is attached to the riser and an upper end of the second limb, at a proximal end of the clump weight, is suspended from a winch or crane of the vessel. While lowering the riser from the vessel, the weight load applied to the riser by the clump weight is controlled by adjusting the relative lengths of the first 0 and second limbs of the clump weight.
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公开(公告)号：US11365836B2
公开(公告)日：2022-06-21
申请号：US16337892
申请日：2017-09-27
摘要： A pulling and alignment system for flanged components has pairs of flange attachments fixed to respective flanges of components that are to be pulled together and aligned for coupling. A puller device is supported by a flange attachment of each pair. A flexible elongate pulling link extends between the flange attachments of the pair and is engaged by, and movable relative to, the puller device to act in tension between those flange attachments. Each flange attachment is a flange extension that comprises an arm cantilevered from a mounting to extend beyond the flange and to hold the pulling link outboard of the flange. The pulling link is an articulated rod having a longitudinal series of rigid elements, each of those elements being pivotably coupled to at least one other of those elements.
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公开(公告)号：US20230112210A1
公开(公告)日：2023-04-13
申请号：US18076386
申请日：2022-12-06
发明人： Nelson Bittar Romeu , Andre Ramiro Amorim , Marcio Nogueira Barcellos , Daniel Sahonero Rodrigues , Flavio Lage Bormann
摘要： A method of installing a subsea riser comprises placing an elongate negatively-buoyant support on the seabed and, when laying the riser on the seabed, guiding a riser portion onto the support to extend along and be cradled by the support. A hogbend region of 5 the riser is then formed by conferring positive buoyancy on the support to lift the support and the riser portion away from the seabed. An element of the support comprises a riser support disposed in a longitudinally-extending open-ended gap between buoyancy volumes disposed on opposite sides of 0 the gap. Coupling formations such as hinge portions can couple the element to a like element. When so coupled, the gaps of those elements align to define an upwardly-opening, longitudinally-extending groove to receive the riser.
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