| 主权项 |
1. A method of treating a subterranean formation comprising:
bubbling a gas comprising CO2 through a combined polymer and liquid comprising water, the liquid comprising water comprising an aqueous fluid comprising, a drilling fluid, stimulation fluid, fracking fluid, spotting fluid, clean-up fluid, production fluid, completion fluid, remedial treatment fluid, abandonment fluid, pill, acidizing fluid, a cementing fluid, or a combination thereof, and the polymer comprising at least one monomer comprising a switchable-amphiphilic functional group, the switchable-amphiphilic functional group comprising an amidine group, wherein the monomer comprising the switchable-amphiphilic functional group has the structure: wherein
linking group L2 independently at each occurrence is (C5-C20)alkylene,A is the switchable-amphiphilic functional group, having the structure: X−is a counterion,R1, R2, and R3 are independently at each occurrence (C1-C5)alkyl, andbubbling the gas comprising CO2 through the combined polymer and liquid ionizes the amidine group and forms a latex comprising the liquid and solid particles comprising the polymer; and placing the latex in the subterranean formation; wherein a degree of ionization of the polymer at a first location in the subterranean formation is different than a degree of ionization of the polymer at a second location in the subterranean formation. |
