EP 0280705 B1 19920226 - PROCESS AND DEVICE FOR PRODUCING DRILLING HOLES FROM AN ANGLED POSITION IN RELATION TO THE DRILLING AXES
Title (en)
PROCESS AND DEVICE FOR PRODUCING DRILLING HOLES FROM AN ANGLED POSITION IN RELATION TO THE DRILLING AXES
Publication
Application
Priority
DE 3629366 A 19860829
Abstract (en)
[origin: WO8801677A1] In the process and device described, the technical and mechanical system selected for producing the drill holes consists of a freely moving support and of an axially moving drilling machine on the latter. In order to perfect known drilling processes and devices of this type, the string of rods (5) according to the process described has a flexible configuration and is diverted, by passing through an angled guide (7) fixed to the drilling support (3), from the rotation axes of the drilling machine (4) into the axes of the drill hole. According to the device described, the flexible rods consist of a tube-shaped core (36) and of wires or bars wound around said core.
IPC 1-7
IPC 8 full level
E21B 7/02 (2006.01); E21B 7/08 (2006.01); E21B 17/20 (2006.01); E21B 19/22 (2006.01); E21B 19/24 (2006.01); E21B 21/02 (2006.01); E21D 20/00 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP US)
E21D 20/003 (2013.01 - EP US); E21D 21/006 (2016.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8801677 A1 19880310; AT E72875 T1 19920315; DE 3629366 A1 19880303; DE 3776890 D1 19920402; EP 0280705 A1 19880907; EP 0280705 B1 19920226; US 4905777 A 19900306
DOCDB simple family (application)
EP 8700488 W 19870827; AT 87905613 T 19870827; DE 3629366 A 19860829; DE 3776890 T 19870827; EP 87905613 A 19870827; US 19250888 A 19880429