EP 0982470 A3 20000906 - Method for building a well
Title (en)
Method for building a well
Title (de)
Verfahren zum Bau eines Brunnens
Title (fr)
Methode pour construire un puits
Publication
Application
Priority
DE 19839340 A 19980828
Abstract (en)
[origin: EP0982470A2] First the vertical shaft (1) is sunk and filled at the bottom with filtering gravel (5). The horizontal bore (6,7), with entrance (8) and outlet (9) at the surface is executed in a way, that it passes through the bottom of the vertical shaft within the gravel filled area. A filter pipe segment (4) is inserted into the horizontal bore and a vertical filter pipe with adjacent top pipe work (10) is inserted into the vertical shaft.
IPC 1-7
IPC 8 full level
E21B 43/02 (2006.01); E21B 43/30 (2006.01)
CPC (source: EP)
E21B 43/02 (2013.01); E21B 43/305 (2013.01)
Citation (search report)
- [A] US 3386508 A 19680604 - BIELSTEIN WALTER J, et al
- [A] US 5402851 A 19950404 - BAITON NICK [CA]
- [A] US 4714376 A 19871222 - JENAB S ABDOLLAH [US]
- [A] DE 4313221 A1 19941103 - FLOWTEX SERVICE GES FUER HORIZ [DE], et al
- [A] E. BIESKE: "Bohrbrunnen", 1992, OLDENBOURG, MÜNCHEN, 7. AUFLAGE, XP002142385
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0982470 A2 20000301; EP 0982470 A3 20000906; DE 19839340 C1 20000621
DOCDB simple family (application)
EP 99116315 A 19990819; DE 19839340 A 19980828