A well treatment fluid comprising an aqueous base fluid and a clay control agent is provided. The clay control agent is fast green. In one form, the fast green has the formula C.sub.37H.sub.37N.sub.2O.sub.10S.sub.3+. Clay control agents in addition to fast green can also be included. Also provided is a method of treating a subterranean formation in order to stabilize water-sensitive clay minerals in the formation.

Disclosed is an alkaline earth metal peroxide concentrate, or fluidized suspension, for addition to aqueous hydraulic fracturing fluids to efficiently decrease the viscosity of the hydrated, hydrophilic polysaccharide polymer in the system. The concentrate comprises a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, a polar activator, a sparingly-soluble alkaline earth metal peroxide, and an anionic surfactant. Advantageously, these concentrations, or suspensions, exhibit high flash points, making them easier to transport using commercial transportation means.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Self-suspending proppants including proppant particles coated with a CO.sub.2-philic coating are provided. The CO.sub.2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO.sub.2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO.sub.2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO.sub.2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

Provided is a method and composition for the in-situ generation of synthetic sweet spots in tight-gas formations. The composition can include nitrogen generating compounds, which upon activation, react to generate heat and nitrogen gas. The method of using the composition includes injecting the composition into a tight-gas formation such that upon activation, the heat and nitrogen gas generated.

A method of stabilizing one or more clays within a subterranean formation comprises forming at least one treatment fluid comprising anionic silica particles, cationic silica particles, and at least one base material. The at least one treatment fluid is provided into a subterranean formation containing clay particles to attach at least a portion of the anionic silica particles and the cationic silica particles to surfaces of the clay particles and form stabilized clay particles. A method of treating one or more clays contained within a subterranean formation, and a treatment fluid for a subterranean formation.