EP 0778392 A3 20000607 - Method and apparatus for removing the uppermost part of a construction in the seabed
Title (en)
Method and apparatus for removing the uppermost part of a construction in the seabed
Title (de)
Verfahren und Vorrichtung zum Entfernen des obersten Teils einer Konstruktion im Meeresboden
Title (fr)
Méthode et dispositif pour enlever la partie supérieure d'une construction au fond de la mer
Publication
Application
Priority
NL 1001807 A 19951204
Abstract (en)
[origin: EP0778392A2] 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. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 4/18 (2006.01); E21B 7/12 (2006.01); E21B 7/28 (2006.01); E21B 29/12 (2006.01); E21B 31/16 (2006.01); E21B 31/18 (2006.01)
CPC (source: EP)
E21B 4/18 (2013.01); E21B 7/12 (2013.01); E21B 7/28 (2013.01); E21B 29/12 (2013.01); E21B 31/16 (2013.01); E21B 31/18 (2013.01)
Citation (search report)
- [YA] EP 0243981 A1 19871104 - RAUMA REPOLA OY [FI], et al
- [Y] US 3020965 A 19620213 - KELLER JR RICHARD F
- [Y] US 5002432 A 19910326 - DYSARZ EDWARD D [US]
- [A] US 5361748 A 19941108 - MATTEUCCI FRANCESCO [IT]
- [A] US 1644560 A 19271004 - EDWARD BIGNELL
Designated contracting state (EPC)
DK GB NL
DOCDB simple family (publication)
EP 0778392 A2 19970611; EP 0778392 A3 20000607; NL 1001807 C2 19970606; NO 965152 D0 19961203; NO 965152 L 19970605
DOCDB simple family (application)
EP 96203417 A 19961203; NL 1001807 A 19951204; NO 965152 A 19961203