Patent ID: 9725642
Date: 2017-08-08
CPC Classifications: C09K

Claim:
1. A method comprising: providing a treatment fluid having a pH ranging between about 1 and about 4.5 and comprising: introducing the treatment fluid into a subterranean formation containing a siliceous material and a source of calcium ions, at least a portion of the siliceous material also comprising aluminum; dissolving at least a portion of the siliceous material in the subterranean formation with the hydrofluoric acid or the hydrofluoric acid-generating compound, thereby forming dissolved silicon, dissolved aluminum ions and dissolved calcium ions; exposing the dissolved silicon, the dissolved aluminum ions and the dissolved calcium ions to the compound having two or more quaternized amine groups; and while exposing the compound having two or more quaternized amine groups to the dissolved silicon, the dissolved aluminum ions, and the dissolved calcium ions, complexing both the dissolved calcium ions and the dissolved aluminum ions with the chelating agent, wherein the compound having two or more quaternized amine groups comprises a bis-quaternary ammonium compound, wherein the bis-quaternary ammonium compound has a structure of wherein X wherein R wherein R wherein the anion is selected from the group consisting of fluoride, chloride, bromide, iodide, organic anions, sulfate, and nitrate.