EP 3052735 A4 20170614 - METHOD FOR PUTTING TOGETHER OF A DRILLING DEVICE AND DRILLING DEVICE
Title (en)
METHOD FOR PUTTING TOGETHER OF A DRILLING DEVICE AND DRILLING DEVICE
Title (de)
VERFAHREN ZUR ZUSAMMENSETZUNG EINER BOHRVORRICHTUNG UND BOHRVORRICHTUNG
Title (fr)
PROCÉDÉ D'ASSEMBLAGE D'UN DISPOSITIF DE FORAGE ET DISPOSITIF DE FORAGE
Publication
Application
Priority
- FI 20135971 A 20130930
- FI 2014050638 W 20140820
Abstract (en)
[origin: WO2015044508A1] The invention relates firs of all to a method for putting together of a drilling device, which drilling device is meant to be used in a down-the-hole apparatus, by means of which a hole is being drilled by using the drilling device (1) and a casing part (2). The drilling device (1) comprises in its drilling head (I) a drilling arrangement, such as first drilling means (4) for drilling a center hole and second drilling means (5) for reaming the center hole for the casing part (2), wherein the essentially rotationally symmetrical drilling means (4, 5) are coupled with each other on the first hand in a power transmitting manner and on the other hand removably in order to enable removal of the first drilling means (4) from a drilled hole. The casing part (2) is arranged to be pulled into the hole to be drilled by a power influence directed thereto from the drilling device (1) by means of a shoulder arrangement (L) between the same and the drilling device (1). A separate sleeve arrangement (V) is being used in longitudinal direction (s) between counterpart shoulders (x, y), forming the said shoulder arrangement (L) and being directed when viewed in radial direction (r) in opposite directions, in order to minimize mutual wear of the said counterpart shoulders (x, y) and/or kinetic energy, such as hammering motion, being transmitted by the same. The invention also relates to a drilling device implemented according to the method.
IPC 8 full level
E21B 7/20 (2006.01); E21B 17/07 (2006.01)
CPC (source: EP US)
E21B 7/20 (2013.01 - EP US); E21B 10/26 (2013.01 - EP US); E21B 17/04 (2013.01 - EP US); E21B 17/076 (2013.01 - EP US); E21B 19/18 (2013.01 - US)
Citation (search report)
- [XI] WO 2010071563 A1 20100624 - SANDVIK INTELLECTUAL PROPERTY [SE], et al
- See references of WO 2015044508A1
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 2015044508 A1 20150402; CA 2922206 A1 20150402; CL 2016000403 A1 20161118; EP 3052735 A1 20160810; EP 3052735 A4 20170614; FI 10678 U1 20141107; US 2016201409 A1 20160714
DOCDB simple family (application)
FI 2014050638 W 20140820; CA 2922206 A 20140820; CL 2016000403 A 20160223; EP 14849079 A 20140820; FI U20144183 U 20140826; US 201414913936 A 20140820