EP 3690181 A1 20200805 - GUIDE ADAPTER WITH WEAR INSERTS
Title (en)
GUIDE ADAPTER WITH WEAR INSERTS
Title (de)
FÜHRUNGSADAPTER MIT VERSCHLEISSEINSÄTZEN
Title (fr)
ADAPTATEUR DE GUIDAGE COMPORTANT DES INSERTS D'USURE
Publication
Application
Priority
EP 19154472 A 20190130
Abstract (en)
A guide adapter (1) for connection between a drill bit and a drill string or rod, said guide adapter (1) comprising an elongate shaft (2) extending along a longitudinal axis (3) of the guide adapter (1), wherein a front portion of the shaft (2) is provided with first connection means (4), and wherein a rear portion of the shaft (2) is provided with second connection means (5). The shaft (2) is provided with a plurality of radially extending wear inserts (6) distributed around the circumference of the shaft (2).
IPC 8 full level
E21B 10/38 (2006.01); E21B 17/07 (2006.01); E21B 17/10 (2006.01)
CPC (source: EP)
E21B 10/38 (2013.01); E21B 17/076 (2013.01); E21B 17/1078 (2013.01)
Citation (search report)
- [XI] WO 2016108842 A1 20160707 - HALLIBURTON ENERGY SERVICES INC [US]
- [I] GB 2212091 A 19890719 - BOART HARDMETALS [IE]
- [I] US 5435401 A 19950725 - HEDLUND JAN-GUNNAR [US], et al
- [X] WO 2010044767 A1 20100422 - STRATA DIRECTIONAL TECHNOLOGY [US]
- [X] US 2009223717 A1 20090910 - EPPINK JAY MILTON [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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 19154472 A 20190130; EP 2020052220 W 20200130