E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) C07F 11/00 (2006.01) C09K 8/512 (2006.01) C09K 8/88 (2006.01)
Patent
CA 2063877
An aqueous gellable composition for use to modify the permeability of high-permeability regions in petroleum reservoirs, wherein the aqueous gellable composition containing an organic, water-soluble polymer crosslinkable with chrome ion and a crosslinking and gel-retarding system definable by the formula: Cr (L) m.nL' L' being in form not complexed with chrome ion wherein: Cr is a trivalent chrome ion; L is an organic ligand consisting of a monocarboxylate or dicarboxylate ion, optionally bearing one or more amino or hydroxy functional group(s), in form complexed with chrome ion; is an organic ligand selected among malonic and ascorbic acids or when I' is salicylic acid, L is selected among: acetate, propionate, butyrate, malonate, succinate, glutarate, adipate, glycolate, lactate, alpha-hydroxybutyrate, ascorbate, tartrate, alpha-aminoacetate (glycine) and alpha-amino-beta- hydroxypropionate (serine), alpha-aminobutyrate, phthalate; in form complexed with chromium ion; has a value comprised within the range of from 1 to 3, depending on the nature of the ligand L; has a value comprised within the range of from 0.5 to 100; with the proviso that in the crosslinking and gel-retarding system, the ligand L is different from the ligand L'.
Albonico Paola
Lockhart Thomas Paul
Agip S.p.a.
Eniricerche S.p.a.
Robic
LandOfFree
Aqueous gellable composition with delayed gelling time does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aqueous gellable composition with delayed gelling time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous gellable composition with delayed gelling time will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1993042