EP 2646640 A2 20131009 - METHOD AND DEVICE FOR DRILLING A PIT OR PASSAGE, AND FLEXIBLE TUBE THEREFOR
Title (en)
METHOD AND DEVICE FOR DRILLING A PIT OR PASSAGE, AND FLEXIBLE TUBE THEREFOR
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BOHREN EINER GRUBE ODER EINES DURCHGANGS UND BIEGSAMER SCHLAUCH DAFÜR
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LE FORAGE D'UNE FOSSE OU D'UN PASSAGE, ET TUBE FLEXIBLE CORRESPONDANT
Publication
Application
Priority
- NL 1038414 A 20101201
- NL 1039014 A 20110826
- NL 2011050829 W 20111201
Abstract (en)
[origin: WO2012074404A2] The invention relates to a method and device for drilling a pit or passage extending substantially vertically into the ground, and a flexible hose therefor. The method according to the invention comprises of: providing a frame with a pressure chamber; arranging a first outer end of a flexible tube on the pressure chamber using connecting means; - applying a pressure in the pressure chamber with a pressure medium by means of pressure means; and carrying the flexible tube into the ground.
IPC 8 full level
E21B 7/26 (2006.01); E21B 7/06 (2006.01); E21B 7/20 (2006.01); E21B 33/02 (2006.01)
CPC (source: EP US)
E21B 7/00 (2013.01 - EP US); E21B 7/06 (2013.01 - EP US); E21B 7/205 (2013.01 - EP US); E21B 33/02 (2013.01 - EP US); E21B 43/103 (2013.01 - EP US)
Citation (search report)
See references of WO 2012074404A2
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)
WO 2012074404 A2 20120607; WO 2012074404 A3 20121004; EP 2646640 A2 20131009; US 2013313020 A1 20131128
DOCDB simple family (application)
NL 2011050829 W 20111201; EP 11797276 A 20111201; US 201113991049 A 20111201