Systems and methods for treating a subterranean formation with particulate additives that may be useful in removing filtercake and/or mitigating premature fluid loss from the subterranean formation are provided. In some embodiments, the methods include providing a treatment fluid that includes a base fluid and a particulate additive, wherein particulates of the particulate additive each include an enzyme core and a degradable coating that at least partially encapsulates an outer surface of the enzyme core; and introducing the treatment fluid into at least a portion of a subterranean formation.

Proppant compositions and methods for using same are disclosed herein. In particular, a proppant composition for use in hydraulic fracturing is disclosed herein. The proppant composition can contain a plurality of particulates and at least one particulate of the plurality of particulates containing a chemical treatment agent. The at least one particulate having a long term permeability measured in accordance with ISO 13503-5 at 7,500 psi of at least about 10 D. The at least one chemical treatment agent can separate from the at least one particulate when located inside a fracture of a subterranean formation after a period of time.

Fusion proteins containing a targeting sequence, an exosporium protein, or an exosporium protein fragment that targets the fusion protein to the exosporium of a Bacillus cereus family member are provided. Recombinant Bacillus cereus family members expressing such fusion proteins are also provided. Genetically inactivated Bacillus cereus family members and recombinant Bacillus cereus family members that overexpress exosporium proteins are also provided. Seeds coated with the recombinant Bacillus cereus family members and methods for using the recombinant Bacillus cereus family members (e.g., for stimulating plant growth) are also provided. Various modifications of the recombinant Bacillus cereus family members that express the fusion proteins are further provided. Fusion proteins comprising a spore coat protein and a protein or peptide of interest, recombinant bacteria that express such fusion proteins, seeds coated with such recombinant bacteria, and methods for using such recombinant bacteria (e.g., for stimulating plant growth) are also provided.

The invention provides environmentally-friendly compositions and methods for reducing the viscosity of crude oil using microorganisms and/or biosurfactants produced by microorganisms.

Compositions and methods of using such compositions to, for example, reduce the viscosity of treatment fluids are provided. In one embodiment, the methods include: providing a treatment fluid including a base fluid, a viscosifier, and a breaker system including a gel stabilizer; a delayed release oxidative breaker; and a delayed release enzyme breaker; and allowing the breaker system to reduce a viscosity of the treatment fluid.

Certain foamed gel treatment fluids and methods of using the treatment fluids in wellbores penetrating subterranean formations are provided. In one embodiment, the treatment fluids comprise: an aqueous base fluid, a gas, a plurality of particulates, and a plurality of swellable particles each comprising a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant. In one embodiment, the methods comprise: preparing a treatment fluid comprising an aqueous base fluid and a swellable particle that comprises a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and blending the treatment fluid while in the wellbore to form a foamed gel.

Methods for treating bodies of water with encapsulated corrosive fluids are described. Corrosive fluids may include, for example, hydrochloric acid or other acids used in treating the bodies of water. The encapsulated corrosive fluids may also be used in for treatments in oil and/or gas wells.

Various embodiments disclosed relate to clay stabilizers. In various embodiments, the present invention provides a method of treating a subterranean formation, including obtaining or providing a composition including a clay stabilizer having the structure Y—R.sup.1—(O—R.sup.2).sub.x—Y. The variable R.sup.1 can be a substituted or unsubstituted (C.sub.1-C.sub.20)hydrocarbylene. At each occurrence, R.sup.2 can independently be a substituted or unsubstituted (C.sub.1-C.sub.20)hydrocarbylene. At each occurrence, Y can be independently selected from a substituted or unsubstituted amino group, a substituted or unsubstituted ammonium group, a nitro group, a substituted or unsubstituted amine oxide group, and a substituted or unsubstituted (C.sub.1-C.sub.20)hydrocarbyloxy group, wherein at least one terminal group Y is a substituted amino group, a substituted or unsubstituted ammonium group, a substituted or unsubstituted amine oxide group, or a nitro group. The variable x can be an integer between 1 and 200,000. The method also includes placing the composition in a subterranean formation.

A method of treating a well comprising introducing an aqueous-based well treatment fluid into the well and treating the well with the well treatment fluid is provided. The well treatment fluid comprises an aqueous base fluid, and an iron control agent present in the well treatment fluid in an amount sufficient to chelate iron dissolved in the aqueous base fluid. The iron control agent comprises fulvic acid. The iron control agent can also function as a gel stabilizer. In one embodiment, for example, the method is a method of fracturing a subterranean formation. In another embodiment, for example, the method is a method of forming a gravel pack in a well. An aqueous-based well treatment fluid is also provided.

The present invention provides environmentally-friendly compositions and methods for degrading polymers used in fracking operations to enhance the recovery of oil and gas. Specifically, the compositions and methods utilized microorganisms and/or their growth by-products to degrade polymers, such as PGA, PLA and PAM, used in fracking wells.