EP 2177711 A1 20100421 - Drill pipe stands and method of producing a drilled pipe
Title (en)
Drill pipe stands and method of producing a drilled pipe
Title (de)
Bohrrohrständer und Verfahren zum Herstellen einer verrohrten Bohrung
Title (fr)
Support de tige de forage et procédé destiné à la fabrication d'un forage tubé
Publication
Application
Priority
EP 08017998 A 20081014
Abstract (en)
The stand (10) has a retaining device (12) for vertically retaining and holding drill elements. An attachment device (40) fixes the retaining device in ground. A carrier (42) is provided at an upper end of the attachment device, where the retaining device is removable retained at the attachment device by the carrier. The retaining device has a horizontal base (14) including a centring element (30), where an outer diameter of the centring element is smaller than an internal diameter of the drill elements. An independent claim is also included for a method for producing a cased drill.
Abstract (de)
Die Erfindung betrifft einen Bohrrohrständer mit einer Aufnahmeeinrichtung zum vertikalen Aufnehmen und Haltern von mindestens einem Bohrrohrelement und einer Befestigungseinrichtung zum Verankern der Aufnahmeeinrichtung im Boden.
IPC 8 full level
E21B 19/14 (2006.01)
CPC (source: EP)
E21B 19/14 (2013.01)
Citation (applicant)
- US 2781185 A 19570212 - DAVIS ROBBINS
- DE 19509379 A1 19960919 - FROMME THEO DIPL ING FH [DE], et al
- FR 2255461 A1 19750718 - ATLAS COPCO AB [SE]
- DE 3336314 C1 19840816 - BOCHUMER EISEN HEINTZMANN
- US 4621974 A 19861111 - KRUEGER ROGER J [US]
- GB 1163055 A 19690904 - SALZGITTER MASCHINEN AG [DE]
- US 4055286 A 19771025 - SCHMID CHARLES F
- US 5143163 A 19920901 - STIFFLER STEPHEN P [US], et al
- JP 2004092220 A 20040325 - TAISEI CORP
Citation (search report)
- [X] US 2781185 A 19570212 - DAVIS ROBBINS
- [X] FR 2255461 A1 19750718 - ATLAS COPCO AB [SE]
- [A] DE 19509379 A1 19960919 - FROMME THEO DIPL ING FH [DE], et al
- [A] DE 3336314 C1 19840816 - BOCHUMER EISEN HEINTZMANN
- [A] US 4621974 A 19861111 - KRUEGER ROGER J [US]
Citation (examination)
- GB 1163055 A 19690904 - SALZGITTER MASCHINEN AG [DE]
- US 4022286 A 19770510 - GILL JOSEPH ANTHONY
- US 5143163 A 19920901 - STIFFLER STEPHEN P [US], et al
- JP 2004092200 A 20040325 - NIPPON TECHNO KK
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08017998 A 20081014