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1. WO2021040533 - SUBSEA FOUNDATION AND METHOD OF INSTALLING

Publication Number WO/2021/040533
Publication Date 04.03.2021
International Application No. PCT/NO2020/050217
International Filing Date 27.08.2020
IPC
E02D 27/52 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
27Foundations as substructures
32Foundations for special purposes
52Submerged foundations
B63B 21/27 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
24Anchors
26securing to bed
27by suction
E21B 33/035 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
02Surface sealing or packing
03Well heads; Setting-up thereof
035specially adapted for underwater installations
E21B 41/10 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
41Equipment or details not covered by groups E21B15/-E21B40/95
10Guide posts, e.g. releasable; Attaching guide lines to underwater guide bases
CPC
B63B 21/27
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
24Anchors
26securing to bed
27by suction
E02D 2250/0053
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
2250Production methods
0053using suction or vacuum techniques
E02D 27/52
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
27Foundations as substructures
32Foundations for special purposes
52Submerged foundations ; , i.e. submerged in open water
E02D 7/20
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
7Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
20Placing by pressure or pulling power
E21B 33/035
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
02Surface sealing or packing
03Well heads; Setting-up thereof
035specially adapted for underwater installations
E21B 41/10
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
41Equipment or details not covered by groups E21B15/00 - E21B40/00
10Guide posts, e.g. releasable; Attaching guide lines to underwater guide bases
Applicants
  • EQUINOR ENERGY AS [NO]/[NO]
Inventors
  • ELLINGSEN, Kjell Einar
  • STANGELAND, Jone
Agents
  • JACKSON, Robert
Priority Data
1912265.427.08.2019GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SUBSEA FOUNDATION AND METHOD OF INSTALLING
(FR) FONDATION SOUS-MARINE ET PROCÉDÉ D'INSTALLATION
Abstract
(EN)
A method of connecting a lower pipe portion to a subsea foundation is provided. The method comprises: providing the subsea foundation, wherein the subsea foundation comprises an upper pipe portion connected to the subsea foundation, deploying the subsea foundation subsea; and connecting the lower pipe portion to the upper pipe portion. A subsea foundation system is also provided. The subsea foundation system comprises: a subsea foundation; an upper pipe portion connected to the subsea foundation, and a lower pipe portion, wherein the subsea foundation system is arranged such that subsea the lower pipe portion can be connected to the upper pipe portion. 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. The subsea foundation may comprise a pipe overlap section that is arranged to overlap a portion of the upper pipe portion and/or the lower pipe portion when the lower pipe portion is connected to the upper pipe portion.
(FR)
L'invention concerne un procédé de liaison d'une partie de tuyau inférieure à une fondation sous-marine. Le procédé comprend les étapes consistant à : fournir la fondation sous-marine, la fondation sous-marine comprenant une partie de tuyau supérieure reliée à la fondation sous-marine, déployer la fondation sous-marine ; et relier la partie de tuyau inférieure à la partie de tuyau supérieure. L'invention concerne également un système de fondation sous-marine. Le système de fondation sous-marine comprend : une fondation sous-marine ; une partie de tuyau supérieure reliée à la fondation sous-marine, et une partie de tuyau inférieure, le système de fondation sous-marine étant agencé de telle sorte que la partie de tuyau inférieure puisse être reliée à la partie de tuyau supérieure. La partie de tuyau inférieure peut être reliée à la fondation sous-marine dans une position rangée avant le déploiement sous-marin. La partie de tuyau inférieure peut être reliée à un agencement d'insertion avant le déploiement sous-marin. La fondation sous-marine peut comprendre une section de chevauchement de tuyau qui est agencée pour chevaucher une partie de la partie de tuyau supérieure et/ou de la partie de tuyau inférieure lorsque la partie de tuyau inférieure est reliée à la partie de tuyau supérieure.
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