公开(公告)号：US20250059721A1

公开(公告)日：2025-02-20

申请号：US18719216

申请日：2022-12-15

Applicant: SEAWAY 7 ENGINEERING B.V.

Inventor： Jan DYSVIK

IPC: E02B17/00 ,  E02D27/42 ,  E02D27/52 ,  F03D13/10 ,  F03D13/25

Abstract: A method for installation of a transition piece on a monopile foundation of an offshore wind turbine along a common axis extending in a longitudinal direction is performed from a floating installation vessel. Buffer elements are arranged around an inner circumference of the transition piece and/or the monopile structure. The transition piece is lifted and lowered onto the monopile structure by use of a crane, and landed onto the monopile structure through the use of the buffer elements. A number of hydraulic cylinder jacks for circumferential alignment of bolt holes are provided in the transition piece and monopile, and alignment tools are used for alignment of the flanges provided on each of the transition piece and the monopile. The transition piece is lifted and the buffer elements are removed after which the transition piece is lowered onto the monopile, and bolts are tensioned fix the transition piece to the monopile.

公开(公告)号：US20250019047A1

公开(公告)日：2025-01-16

申请号：US18705377

申请日：2022-10-14

Applicant: Itrec B.V.

Inventor： Terence Willem August VEHMEIJER ,  Jelmer BRAAKSMA

IPC: B63B27/10 ,  B66C13/06 ,  B66C23/52 ,  E02D13/04 ,  E02D27/52 ,  F03D13/10 ,  F03D13/25

Abstract: Installation vessel for installation of a monopile to support an offshore wind turbine. The vessel has a pile holding device with a pile holder and a support assembly which is configured to move the pile holder in a horizontal plane relative to the hull. A monitoring system is configured to, in a gripping phase wherein the monopile is suspended from a crane and is to be gripped by the pile holder, monitor the suspended monopile in the horizontal plane relative to the pile holder. The system provides signals representative of the position and movement of the monopile relative to the pile holder to the motion control unit of the support assembly.

公开(公告)号：US20250012035A1

公开(公告)日：2025-01-09

申请号：US18884884

申请日：2024-09-13

Applicant: Equinor Energy AS

Inventor： Kjell Einar ELLINGSEN ,  Jone Stangeland ,  Geir Gundersen Fuhr ,  Lorents Reinås ,  Morten Sæther ,  Harald Sigurd Nesse ,  Asle Eide

IPC: E02D27/52 ,  E02D7/20 ,  E21B41/10

Abstract: A subsea foundation system and a method of connecting a lower pipe portion to a subsea foundation are provided. The method includes: providing the subsea foundation, an upper pipe portion being connected to the subsea foundation, deploying the subsea foundation subsea; and connecting the lower pipe portion to the upper pipe portion. The subsea foundation system includes: the subsea foundation; the upper pipe portion connected to the subsea foundation, and the lower pipe portion. The lower pipe portion can be connected to the upper pipe portion subsea. The lower pipe portion may be connected to the subsea foundation in a stowed position before deployment subsea. The lower pipe portion may be connected to a pull-in arrangement before deployment subsea.

公开(公告)号：US12123159B2

公开(公告)日：2024-10-22

申请号：US17424279

申请日：2020-01-21

Applicant: ITREC B.V.

Inventor： Eric Romeijn

IPC: E02D7/08 ,  E02D13/00 ,  E02D13/04 ,  E02B17/08 ,  E02D27/42 ,  E02D27/52

CPC classification number: E02D7/08 ,  E02D13/00 ,  E02D13/04 ,  E02B17/08 ,  E02D27/425 ,  E02D27/525 ,  E02D2200/1685

Abstract: A pile driving method for driving a pile, e.g. a hollow and open ended pile, e.g. a large diameter pile having an outer diameter of at least 5 meters, e.g. a monopile of an offshore wind turbine, into the soil, e.g. into the seabed. Use is made of a pile driving system which comprises a drive head member that is configured to engage the pile, and a solid mass drop weight assembly comprising a support structure and comprising solid drop weight elements supported by said support structure, preferably solid steel drop weight elements being composed of steel elements, e.g. stackable steel elements, which drop weight elements have a total mass of at least 100 tonnes, e.g. more than 500 tonnes. e.g. more than 1000 tonnes, e.g. more than 2000 tonnes, which drop weight assembly is vertically mobile relative to, e.g. above, the drive head member. Further use is made of a lift system that is configured to bring the drop weight assembly into an initial height position relative to the drive head, and a quick release system adapted to effect quick release of the lift system.

公开(公告)号：US20240337086A1

公开(公告)日：2024-10-10

申请号：US18602779

申请日：2024-03-12

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY

Inventor： Taek Hee HAN ,  Seokjae LEE

IPC: E02D27/52 ,  E02D5/30 ,  E02D5/54

CPC classification number: E02D27/525 ,  E02D5/30 ,  E02D5/54 ,  E02D2600/30

Abstract: Provided is a buoyancy-resistant pile for subsea structure installation, the buoyancy-resistant pile including: a pile main body having one end buried in a seabed or a concrete foundation and having a hollow portion provided therein; and a pull-out resistor coupled to pass through a side surface of the pile main body and buried in the seabed or the concrete foundation.

公开(公告)号：US20240286713A1

公开(公告)日：2024-08-29

申请号：US18659713

申请日：2024-05-09

Applicant: EQUINOR ENERGY AS

Inventor： Lorents REINÅS ,  Kjell Einar ELLINGSEN ,  Asle EIDE ,  Bjørgulf Haukelidsæter EIDESEN ,  Harald Sigurd NESSE ,  Roger VANGSNES ,  Morten SÆTHER

IPC: B63B21/27 ,  E02D23/00 ,  E02D27/52 ,  E21B33/035

CPC classification number: B63B21/27 ,  E02D27/52 ,  E21B33/035 ,  E02D23/00

Abstract: A suction anchor and method of installing the suction anchor. The suction anchor including a suction chamber bounded by: a circumferential outer wall; an upper wall; and an internal housing wall. The internal housing defining a passage for receiving wellhead components that may be secured to the suction anchor. The suction chamber has a minor upper portion and a major lower portion. The minor upper portion having internal reinforcing members extending along the inside of the upper wall from the outer walls to the internal housing. The major portion is adapted to be embedded in a seabed and the minor portion is adapted to project from the seabed when the anchor is installed. The reinforcing members serve to reinforce the upper wall of the chamber against collapse and to rigidly support the internal housing to resist forces arising from bending moments applied to wellhead components received and secured therein.

公开(公告)号：US12006648B2

公开(公告)日：2024-06-11

申请号：US17423972

申请日：2020-01-21

Applicant: Koninklijke BAM Groep N.V.

Inventor： Nhut Quang Nguyen ,  Josephus Fredericus Maria van Rijen

IPC: E02D27/52 ,  E02B17/02 ,  E02D27/42 ,  F03D13/25 ,  E02B17/00

CPC classification number: E02D27/52 ,  E02B17/025 ,  E02D27/425 ,  F03D13/25 ,  E02B2017/0091 ,  E02D2250/0007 ,  E02D2250/0023 ,  E02D2300/002 ,  F05B2240/912 ,  F05B2240/95

Abstract: A gravity based foundation for an offshore installation includes a caisson of concrete and a hollow shaft. The caisson has a bottom slab, a roof and a side wall extending between the bottom slab and the roof. The roof having a passage for the shaft into the caisson. The shaft support has embedded tensioning bars vertically projecting from the upper side of the shaft support. The shaft is mounted on the shaft support by the tensioning bars. A method of manufacturing includes providing a concrete bottom slab, arranging a full-length formwork onto the bottom slab, arranging a slip formwork onto the bottom slab, providing the tensioning bars and mounting the tensioning bars in a fixed position to the full-length formwork, and concrete pouring of the sidewall and shaft support while raising the slip formwork.

公开(公告)号：US20240175231A1

公开(公告)日：2024-05-30

申请号：US18517133

申请日：2023-11-22

Applicant: Energy Future, Inc.

Inventor： Cameron Dunn ,  Steven Downie ,  Tianmin Zhou

IPC: E02D31/08 ,  E02D5/22 ,  E02D27/52

CPC classification number: E02D31/08 ,  E02D5/223 ,  E02D27/525

Abstract: Systems, methods, and apparatus are disclosed involving scour protection of undersea monument foundations, such as monopile foundations. A preferred embodiment comprises an Advanced Ecological Scour Protection System (AESPS) that enhances offshore scour protection through an innovative combination of eco-friendly engineering units and natural materials. In a preferred embodiment, an AESPS includes two main features comprising a single-layer rock blanket deployed first at an intended site of the foundation, followed by installation of fronded eco-concrete mattress units to form a peripheral ring border around the rock blanket. The foundation then may be installed directly into and through the rock blanket, with a monument installed on the foundation, and an export cable extending from the monument, over the mattress units, and through the fronds. Such an AESPS may eliminate critical risks of secondary scour damage, cable lateral movement, and marine life deterioration.

公开(公告)号：US20240175227A1

公开(公告)日：2024-05-30

申请号：US18283667

申请日：2022-03-22

Applicant: ITREC B.V.

Inventor： Matthijs Michiel STOFREGEN ,  Terence Willem August VEHMEIJER ,  Marc Louis BRINKMAN

IPC: E02D13/04 ,  B63B27/16 ,  B63B35/00 ,  B63B75/00 ,  E02D7/06 ,  E02D27/42 ,  E02D27/52

CPC classification number: E02D13/04 ,  B63B27/16 ,  B63B35/003 ,  B63B75/00 ,  E02D7/06 ,  E02D27/525 ,  E02D27/425

Abstract: A method for pile installation wherein use is made of a vessel for pile installation. A pile holding system is mounted to the hull of a vessel, e.g. on deck (2) of a vessel, which pile holding system is configured to hold the pile in an upright orientation at a pile installation location at least whilst suspended from a crane by means of one or more winch driven cables, e.g. for installation of a pile adapted to support an offshore wind turbine, the pile holding system comprises a pile holding tool (40). The pile holding tool (40) further comprises a damping system including at least one damping device (45) that is mounted to the base structure (42) and is configured to, in use, engage on the pile suspended from the crane at a location that is vertically spaced from the circumferential zone that is engaged by the plurality of pile engaging positioning devices (43) of the pile holding tool, and wherein the at least one damping device (45) is configured to dampen pendulum motion of the pile suspended from the crane.

公开(公告)号：US20240084537A1

公开(公告)日：2024-03-14

申请号：US17941775

申请日：2022-09-09

Applicant: Jin Wang

Inventor： Jin Wang

IPC: E02B17/02 ,  E02D27/42 ,  E02D27/52 ,  F03D13/25

CPC classification number: E02B17/027 ,  E02D27/425 ,  E02D27/525 ,  F03D13/25 ,  E02B2017/0047 ,  F05B2240/95

Abstract: A portal frame platform comprises at least three elongate tubular legs extending vertically downward from a top above the waterline to the seabed without horizontal or diagonal bracing members in-between, and a horizontal deck with at least three circular sleeves concentrically coupled to the top of the legs supporting a wind turbine in an in-service configuration. The portal frame platform supporting the wind turbine has an installation configuration with two barges connected to opposite sides of the deck, and the legs extending vertically upward from a bottom above the waterline through the circular sleeves. A construction method includes twelve-steps for quayside assembling, sea-towing and self-installing the portal frame platform with the wind turbine and foundation piles wherein the portable frame platform is converted from the installation configuration to the in-service configuration by lowering the legs through the circular sleeves using wire and winch systems on the two barges.