A method of treating a subterranean formation including providing a treatment fluid comprising a hardenable acid curable resin and a hydrolysable strong acid ester. The treatment fluid is combined with a diluent fluid and is introduced into a subterranean formation. Upon the hydrolyzing of the ester in the formation and the contacting of unconsolidated proppants, the treatment method produces consolidated proppants.

A method of treating a subterranean formation including providing a treatment fluid comprising a hardenable acid curable resin and a hydrolysable strong acid ester. The treatment fluid is combined with a diluent fluid and is introduced into a subterranean formation. Upon the hydrolyzing of the ester in the formation and the contacting of unconsolidated proppants, the treatment method produces consolidated proppants.

A method includes a first injection phase that includes injecting a first gas-based fluid into a subterranean formation at a first pressure that exceeds a fracture pressure of the subterranean formation. The method also includes a second injection phase that includes injecting a second gas-based fracturing fluid into the subterranean formation at a second pressure that exceeds a minimum miscibility pressure of the second gas-based fluid, followed by a shut in period. The method further includes a third injection phase that includes injecting the first gas-based fluid or a third gas-based fluid into the subterranean formation at the first fracture pressure or at a third pressure exceeding the fracture pressure of the subterranean formation. The first gas-based fluid, second gas-based fluid, and third gas-based fluid include carbon dioxide (CO.sub.2).

A method includes a first injection phase that includes injecting a first gas-based fluid into a subterranean formation at a first pressure that exceeds a fracture pressure of the subterranean formation. The method also includes a second injection phase that includes injecting a second gas-based fracturing fluid into the subterranean formation at a second pressure that exceeds a minimum miscibility pressure of the second gas-based fluid, followed by a shut in period. The method further includes a third injection phase that includes injecting the first gas-based fluid or a third gas-based fluid into the subterranean formation at the first fracture pressure or at a third pressure exceeding the fracture pressure of the subterranean formation. The first gas-based fluid, second gas-based fluid, and third gas-based fluid include carbon dioxide (CO.sub.2).

Among the methods provided is a method comprising: providing a fracturing fluid that comprises a base fluid and an additive having a high dielectric constant; and introducing the fracturing fluid into least a portion of a subterranean formation.

Certain particulates of encapsulated treatment chemicals, and methods of and systems for their use in subterranean formations, are provided. In one embodiment, the methods comprise: providing a plurality of treatment particulates, at least one of which comprising a polymer matrix that comprises and/or encages at least one treatment chemical and a coating disposed around an outer surface of the polymer matrix; and introducing the treatment particulates into a well bore penetrating at least a portion of a subterranean formation.

Certain particulates of encapsulated treatment chemicals, and methods of and systems for their use in subterranean formations, are provided. In one embodiment, the methods comprise: providing a plurality of treatment particulates, at least one of which comprising a polymer matrix that comprises and/or encages at least one treatment chemical and a coating disposed around an outer surface of the polymer matrix; and introducing the treatment particulates into a well bore penetrating at least a portion of a subterranean formation.

Methods for diverting treatment fluids to less permeable zones of subterranean formations using a water swellable agent that can degrade at high temperatures are provided. In one embodiment, the method may comprise introducing a water swellable agent into or adjacent to a permeable zone of a subterranean formation; introducing an aqueous solution into the subterranean formation to contact the water swellable agent; allowing the water swellable agent to swell when contacted by the aqueous solution; introducing a treatment fluid into the subterranean formation, wherein the water swellable agent diverts the treatment fluid away from the permeable zone; and allowing the water swellable agent to thermally degrade.

Methods for diverting treatment fluids to less permeable zones of subterranean formations using a water swellable agent that can degrade at high temperatures are provided. In one embodiment, the method may comprise introducing a water swellable agent into or adjacent to a permeable zone of a subterranean formation; introducing an aqueous solution into the subterranean formation to contact the water swellable agent; allowing the water swellable agent to swell when contacted by the aqueous solution; introducing a treatment fluid into the subterranean formation, wherein the water swellable agent diverts the treatment fluid away from the permeable zone; and allowing the water swellable agent to thermally degrade.

A multicomponent nanocapsule composition comprising a core particle, an oil phase encapsulating the core particle, and an aqueous phase in which the encapsulated core particle is suspended is provided. The porous particle includes a cationic surfactant encapsulated in a porous particle. The oil phase includes an anionic surfactant and a zwitterionic surfactant. A method of making a multicomponent nanocapsule composition is also provided. A method of treating a hydrocarbon-bearing formation with the multicomponent nanocapsule composition is provided. The method may include providing a multicomponent nanocapsule composition, introducing the multicomponent nanocapsule composition into the hydrocarbon-bearing formation, displacing hydrocarbons from the hydrocarbon-bearing formation by contacting the multicomponent nanocapsule composition with the hydrocarbons, and recovering the hydrocarbons.