EP 1730384 A4 20071219 - CLAY STABILIZATION IN SUB-SURFACE FORMATIONS
Title (en)
CLAY STABILIZATION IN SUB-SURFACE FORMATIONS
Title (de)
TONSTABILISIERUNG IN UNTERIRDISCHEN FORMATIONEN
Title (fr)
STABILISATION DES ARGILES DANS DES FORMATIONS GEOLOGIQUES SOUS-JACENTES
Publication
Application
Priority
- US 2005009988 W 20050324
- US 81233704 A 20040329
Abstract (en)
[origin: US2005215439A1] Compositions and methods of using same for clay stabilization in sub-surface formation are provided. The compositions comprise an aqueous solution of a polymer such as poly(dimethylaminoethylmethacrylate methyl chloride quaternary salt). The present invention can be effectively utilized to inhibit clay swelling for treating and/or pretreating down-hole formations during well stimulation.
IPC 8 full level
E21B 43/00 (2006.01); C09K 8/60 (2006.01)
CPC (source: EP US)
C09K 8/5083 (2013.01 - EP US); C09K 8/5753 (2013.01 - EP US); C09K 8/608 (2013.01 - EP US); C09K 2208/12 (2013.01 - EP US)
Citation (search report)
- [X] EP 0997515 A1 20000503 - KB TECHNOLOGIES LTD [US]
- [X] US 4563292 A 19860107 - BORCHARDT JOHN K [US]
- See references of WO 2005098199A2
Citation (examination)
US 4536305 A 19850820 - BORCHARDT JOHN K [US], et al
Designated contracting state (EPC)
DK GB NL
DOCDB simple family (publication)
US 2005215439 A1 20050929; AU 2005231200 A1 20051020; AU 2005231200 B2 20090108; BR PI0509043 A 20070821; EP 1730384 A2 20061213; EP 1730384 A4 20071219; NO 20064919 L 20061229; WO 2005098199 A2 20051020; WO 2005098199 A3 20060504
DOCDB simple family (application)
US 81233704 A 20040329; AU 2005231200 A 20050324; BR PI0509043 A 20050324; EP 05731196 A 20050324; NO 20064919 A 20061027; US 2005009988 W 20050324