EP 1240405 A1 20020918 - DRILL STRING WITH INTERFERENCE FIT COUPLINGS AND COUPLERS THEREFOR
Title (en)
DRILL STRING WITH INTERFERENCE FIT COUPLINGS AND COUPLERS THEREFOR
Title (de)
BOHRSTRANG MIT PRESSSITZVERBINDUNGEN UND DAFÜR GEEIGNETES VERBINDUNGSSTÜCK
Title (fr)
TRAIN DE TIGES DE FORAGE COMPORTANT DES COUPLAGES AVEC AJUSTEMENT SERRE, ET DISPOSITIFS DE COUPLAGE DESTINES A CET EFFET
Publication
Application
Priority
- CA 0001255 W 20001027
- CA 2287681 A 19991028
Abstract (en)
[origin: WO0131162A1] A threaded end of a drill rod is formed from a sleeve to one end of the body. The sleeve has a threaded bore to receive a threaded end of an adjacent component and is secured to the body of the rod by an interference fit between a bore and spigot on the two components.
IPC 1-7
IPC 8 full level
E21B 17/04 (2006.01); E21B 17/042 (2006.01)
CPC (source: EP US)
E21B 17/042 (2013.01 - EP US); E21B 17/0426 (2013.01 - EP)
Citation (search report)
See references of WO 0131162A1
Designated contracting state (EPC)
GB SE
DOCDB simple family (publication)
WO 0131162 A1 20010503; AU 1013801 A 20010508; CA 2287681 A1 20010428; EP 1240405 A1 20020918; ZA 200203259 B 20030424
DOCDB simple family (application)
CA 0001255 W 20001027; AU 1013801 A 20001027; CA 2287681 A 19991028; EP 00971186 A 20001027; ZA 200203259 A 20020424