EP 0990767 A1 20000405 - Process for the preparation of containment barriers impermeable to fluids
Title (en)
Process for the preparation of containment barriers impermeable to fluids
Title (de)
Verfahren zur Herstellung von flüssigkeitsdichten Rückhaltebarrieren
Title (fr)
Procédé pour la production de barrières de confinement imperméables aux fluids
Publication
Application
Priority
IT MI982123 A 19981002
Abstract (en)
Process for the preparation of containment barriers impermeable to fluids, which comprises: a) hydraulic fracturing of the ground to create extensive fissures, the above fracturing being effected by injecting, under pressure and through wells, compositions selected from: i) aqueous solutions or dispersions of materials capable of gelling; ii) aqueous dispersions of solids; iii) materials, or relative solutions/dispersions, capable of solidifying on cooling; b) subsequent maintenance under pressure until the formation of the above containment barriers, essentially consisting of compositions (i)-(iii).
IPC 1-7
IPC 8 full level
C02F 1/00 (2006.01); E02D 19/16 (2006.01); E02D 31/00 (2006.01)
CPC (source: EP)
E02D 19/16 (2013.01); E02D 31/00 (2013.01); E02D 2250/003 (2013.01); E02D 2300/0004 (2013.01); E02D 2300/004 (2013.01); E02D 2300/0082 (2013.01)
Citation (search report)
- [XY] US 5503227 A 19960402 - SAPONJA JEFFREY C [CA], et al
- [XY] US 5002431 A 19910326 - HEYMANS MICHAEL J [US], et al
- [X] US 3688507 A 19720905 - MULLER DONALD SINCLAIR
- [Y] US 3669189 A 19720613 - FISCHER PAUL W
- [Y] US 4279547 A 19810721 - CLEM ARTHUR G
- [A] US 4790688 A 19881213 - CASTOR TREVOR P [US]
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 0990767 A1 20000405; EA 002282 B1 20020228; EA 199900788 A2 20000424; EA 199900788 A3 20001030; IT 1302588 B1 20000929; IT MI982123 A1 20000402; JP 2000107745 A 20000418
DOCDB simple family (application)
EP 99118831 A 19990924; EA 199900788 A 19991001; IT MI982123 A 19981002; JP 28310099 A 19991004