EP 2562346 B1 20190313 - Underwater drilling assembly and method for producing a borehole
Title (en)
Underwater drilling assembly and method for producing a borehole
Title (de)
Unterwasser-Bohranordnung und Verfahren zum Erstellen einer Bohrung
Title (fr)
Agencement de forage sous-marin et procédé d'exécution d'un forage
Publication
Application
Priority
EP 11006877 A 20110823
Abstract (en)
[origin: EP2562346A1] The drilling arrangement (10) has service platform (20) which is lowered for placing on bed of water body. A drill drive (50) is mounted such that it is axially displaced on service platform. A drill rod has drill head (80) which is rotatably driven via drill drive. A conveying channel is formed in drill rod, for allowing conveyance of conveying fluid in upward direction with excavated drill cuttings. A discharge opening is provided for discharge of conveying fluid underwater together with excavated drill cuttings above the drill drive. An independent claim is included for method for making bore in bed of water body.
IPC 8 full level
E21B 7/124 (2006.01)
CPC (source: EP KR US)
E21B 7/124 (2013.01 - EP KR US); E21B 10/60 (2013.01 - KR); E21B 21/12 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2562346 A1 20130227; EP 2562346 B1 20190313; CA 2787583 A1 20130223; CA 2787583 C 20150127; CN 103089151 A 20130508; CN 103089151 B 20160622; KR 101419514 B1 20140715; KR 20130023124 A 20130307; US 2013048377 A1 20130228; US 9140068 B2 20150922
DOCDB simple family (application)
EP 11006877 A 20110823; CA 2787583 A 20120822; CN 201210392789 A 20120823; KR 20120092376 A 20120823; US 201213592319 A 20120822