Fluid additive and method for treatment of subterranean formatio

Details Fluid additive and method for treatment of subterranean formatio Fluid additive and method for treatment of subterranean formatio

1989-03-28

1990-12-18

Suchfield, George A.

Wells

Processes

Placing fluid into the formation

166308, 166312, 252 8551, 252 8552, E21B 4322, E21B 4326

Patent

active

049779621

ABSTRACT:
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.

REFERENCES:
patent: 3199591 (1965-08-01), Kepley
patent: 3753233 (1973-08-01), Svaldi et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 4466890 (1984-08-01), Briscoe
patent: 4842073 (1989-06-01), Himes et al.

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