Method and apparatus for removing the uppermost part of a construction in the seabed

(19)

(11)

EP 0 778 392 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.06.2000 Bulletin 2000/23

(43)	Date of publication A2:
	11.06.1997 Bulletin 1997/24

(21)	Application number: 96203417.9

(22)	Date of filing: 03.12.1996

(51)	International Patent Classification (IPC)⁷: E21B 29/12, E02D 9/04

(84)	Designated Contracting States:
	DK GB NL

(30)

Priority:

04.12.1995 NL 1001807

(71)	Applicant: Noordhoek Overseas Equipment B.V.
	4301 RC Zierikzee (NL)

(72)	Inventor:
	Hardon, Maarten Evert 4301 WT Zierikzee (NL)

(74)	Representative: Kupecz, Arpad et al
	Octrooibureau Los en Stigter B.V. Postbox 20052 1000 HB Amsterdam 1000 HB Amsterdam (NL)

(54)	Method and apparatus for removing the uppermost part of a construction in the seabed

(57) When removing the uppermost part of a construction in the seabed a drilling device is applied around said construction in the seabed. Using said drilling device a drill hole is made in the seabed to a certain depth around the construction. Next a cutting device is lowered in said drill hole and cuts said construction at the desired depth from the outside. Next the part of the construction cut loose can be removed together with the drilling device and the cutting device.

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