EP 0954676 A1 19991110 - DEVICE FOR RINSING GAS AND OIL BORE HOLES OF UNDERGROUND EXTRACTION MACHINERY
Title (en)
DEVICE FOR RINSING GAS AND OIL BORE HOLES OF UNDERGROUND EXTRACTION MACHINERY
Title (de)
VORRICHTUNG ZUM SPÜLEN VON GAS- UND ÖLBOHRUNGEN EINER UNTERTAGE-FÖRDERAUSRÜSTUNG
Title (fr)
DISPOSITIF POUR RINCER LES TROUS DE GAZ ET D'HUILE D'UN SYSTEME D'EXTRACTION SOUTERRAIN
Publication
Application
Priority
- DE 19702197 A 19970123
- EP 9800298 W 19980121
Abstract (en)
[origin: WO9832949A1] The invention relates to a device for rinsing gas and oil bore holes of underground conveyor equipment, in which the bore holes have been tubed with a prepunched liner. The device has a rinsing jet with a plurality of aligned jets and a jet body, at the front end of which is the rinsing jet, and at the rear end of which is a flushing agent conduit which can be introduced into the bore hole. The flushing agent conduit is connected to a flushing agent source that is under hydraulic pressure. On the jet body (11), distributed along the perimeter, a plurality of tongues or lamellae (13) is accommodated, which spread outwards during rinsing, and decrease the ring cross-section between jet body (11) and the wall of the bore hole and/or of the hole liner.
IPC 1-7
IPC 8 full level
E21B 37/00 (2006.01)
CPC (source: EP)
E21B 37/00 (2013.01)
Citation (search report)
See references of WO 9832949A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9832949 A1 19980730; CA 2278126 A1 19980730; DE 19702197 C1 19980903; EP 0954676 A1 19991110; NO 993545 D0 19990719; NO 993545 L 19990719
DOCDB simple family (application)
EP 9800298 W 19980121; CA 2278126 A 19980121; DE 19702197 A 19970123; EP 98907964 A 19980121; NO 993545 A 19990719