Patent ID: 7544642

Claim:
A wellbore treating composition for introduction into a subterranean zone comprising: a pill that forms a mass upon contact with a drilling fluid used in drilling a wellbore penetrating a subterranean zone, said pill comprising: a carrier fluid, a zeolite selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faujasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite, and a surfactant selected from the group consisting of cetyltrimethylammonium chloride, cocoaalkyltrimethylammonium chloride, cocoalkyldimethylbenzyl ammonium chloride, stearyltrimethlyammonium chloride, alkylbehenyltrimethylammonium chloride dihydrogenatedtallowalkylethylmethyleammonium ethosulfate, didecyldimethylammonium chloride, dicocyldimethylammonium chloride, distearyldimethylammonium chloride, dioleyldimethylammonium chloride, trilaurylmethylammonium chloride, cocoyl-bis-(2-hydroxyethyl)methylammonium chloride, polyoxyethylene (15) cocoalkylmethylammonium chloride, olyel-bis-(2-hydroxyethyl) methylammonium chloride, tallowalkylmethyipropylenediammonium dichioride, and trimethyltallowammonium chloride.