NO341521B1 - Installation of embedded subsea foundations - Google Patents

Installation of embedded subsea foundations

Info

Publication number
NO341521B1
NO341521B1 NO20160429A NO20160429A NO341521B1 NO 341521 B1 NO341521 B1 NO 341521B1 NO 20160429 A NO20160429 A NO 20160429A NO 20160429 A NO20160429 A NO 20160429A NO 341521 B1 NO341521 B1 NO 341521B1
Authority
NO
Norway
Prior art keywords
resistance
coating
bearing surface
embedded
foundation
Prior art date
Application number
NO20160429A
Other languages
Norwegian (no)
Other versions
NO20160429A1 (en
Inventor
Christian Linde Olsen
Christian Wathne
Original Assignee
Subsea 7 Norway As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Subsea 7 Norway As filed Critical Subsea 7 Norway As
Priority to NO20160429A priority Critical patent/NO341521B1/en
Publication of NO20160429A1 publication Critical patent/NO20160429A1/en
Publication of NO341521B1 publication Critical patent/NO341521B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B21/27—Anchors securing to bed by suction
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions

Abstract

A bearing surface of a subsea foundation has a low-resistance coating such as an aerogel, an aero-clay or a polymeric film. When the foundation is installed, the bearing surface is embedded in the seabed soil using the low- resistance coating to reduce resistance to movement of the bearing surface relative to the seabed soil. The coating may then dissolve or fragment away from the bearing surface or transform into a higher-resistance state while remaining on the bearing surface. These mechanisms degrade a resistance-reducing property of the coating to increase resistance to movement of the embedded bearing surface relative to the seabed soil. Suction may be applied to the foundation before or after the resistance-reducing property of the coating has substantially degraded.A base surface of a subsea foundation has a low-resistance coating such as an aerogel, an aero-clay or a polymeric film. When the foundation is installed, the bearing surface is embedded in the seabed soil using the low-resistance coating to reduce resistance to movement of the bearing surface relative to the seabed soil. The coating may then dissolve or fragment away from the bearing surface or transform into a higher-resistance state while remaining on the bearing surface. These mechanisms degrade a resistance-reducing property of the coating to increase resistance to movement of the embedded bearing surface relative to the seabed soil. Suction may be applied to the foundation before or after the resistance-reducing property of the coating has substantially degraded.

NO20160429A 2016-03-14 2016-03-14 Installation of embedded subsea foundations NO341521B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20160429A NO341521B1 (en) 2016-03-14 2016-03-14 Installation of embedded subsea foundations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20160429A NO341521B1 (en) 2016-03-14 2016-03-14 Installation of embedded subsea foundations

Publications (2)

Publication Number Publication Date
NO20160429A1 NO20160429A1 (en) 2017-09-15
NO341521B1 true NO341521B1 (en) 2017-11-27

Family

ID=60019617

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20160429A NO341521B1 (en) 2016-03-14 2016-03-14 Installation of embedded subsea foundations

Country Status (1)

Country Link
NO (1) NO341521B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451537A (en) * 1974-04-01 1976-10-06 Langner K E Method of forming a subaqueous anchorage
SU949067A1 (en) * 1980-02-15 1982-08-07 Киевский Филиал Харьковского Института "Промзернопроект" Driven pile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451537A (en) * 1974-04-01 1976-10-06 Langner K E Method of forming a subaqueous anchorage
SU949067A1 (en) * 1980-02-15 1982-08-07 Киевский Филиал Харьковского Института "Промзернопроект" Driven pile

Also Published As

Publication number Publication date
NO20160429A1 (en) 2017-09-15

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