E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/26
E21B 43/27 (2006.01) C09K 8/60 (2006.01) C09K 8/66 (2006.01) C09K 8/74 (2006.01)
Patent
CA 2010901
A method of substantially preventing the adsorption of polysaccharides or removing polysaccharides from clay surfaces in subterranean formations which are present as a result of contact by gravel packing, fracturing or other treatment fluids, by contacting the formation with a treatment fluid containing at least one member selected from the group consisting of tetraalkylammonium halides wherein the alkyl radical is selected from methyl, ethyl, propyl and butyl radicals and trimethylammonium halides present in an amount sufficient to substantially remove any polysaccharides adsorbed by said clays whereby the permeability of the formation is substantially maintained.
Himes Ronald E.
Simon David E.
Company Halliburton
Haliburton Company
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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