Abstract: The rapid reaction of hydrofluoric acid with siliceous materials can make it difficult to increase the permeability of subterranean formations containing siliceous minerals.

Abstract: Interaction of particulates of a chelating agent with an acid-reactive surface, such as various surfaces found in a wellbore, can provide a number of benefits during a treatment process. Methods for utilizing particulates of a chelating agent in a treatment process can comprise: introducing a foamed treatment fluid having a continuous liquid phase and a discontinuous gas phase into a wellbore penetrating a subterranean formation, the foamed treatment fluid comprising: a plurality of particulates comprising an N-(phosphonoalkyl)iminodiacetic acid, and an acid in which the N-(phosphonoalkyl)iminodiacetic acid is substantially insoluble; and depositing at least a portion of the plurality of particulates at one or more locations within the subterranean formation.

Abstract: Systems, methods, and compositions that provide an energized natural gas (ENG) fracturing fluid including a complexing agent. A fracturing fluid may include: methane; water; a complexing agent; a surfactant; and wherein the fracturing fluid is an emulsion, the water is in a continuous phase of the emulsion, and methane is in a discrete phase of the emulsion.

Abstract: A method of treating in a subterranean formation including placing a corrosion inhibitor composition into a subterranean formation, where the formation includes an acidic environment having a pH of about 5 or below, where the composition includes: an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; an aqueous acid solution comprising HCl; and contacting a metal surface with the corrosion inhibitor composition. A corrosion inhibitor composition includes an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; and an aqueous acid solution comprising HCl.

Abstract: Provided are methods and systems for treating a subterranean formation. One such method includes preparing an emulsion comprising: an aqueous liquid; a multifunction hydrolysable oil; a co-solvent; and a surfactant. The method further includes combining the emulsion with a carrier fluid to provide a treatment fluid. The method additionally includes introducing the treatment fluid to the subterranean formation. The method also includes contacting hydrocarbons within the subterranean formation with the treatment fluid, and hydrolyzing the multifunction hydrolysable oil to provide an organic acid and an alcohol within the subterranean formation.

Abstract: Methods and systems for protecting acid-reactive surfaces, particularly during subterranean treatment operations in which acids are used. In some embodiments, the methods include: providing a fluid additive including an organic compound and a base, wherein the organic compound includes a phosphonoalkyl moiety; providing an acid or acid generating source; mixing at least the fluid additive and the acid or acid generating source to form a treatment fluid; and introducing the treatment fluid into at least a portion of a subterranean formation.

Abstract: Method comprising introducing a treatment fluid into a subterranean formation, the treatment fluid comprising a pseudo-crosslinking agent and an acidic viscoelastic surfactant (AVS) base fluid, wherein the treatment fluid has a pH of less than 5. The AVS base fluid includes a zwitterionic viscoelastic surfactant, an acidic constituent, and a polar solvent and the zwitterionic viscoelastic surfactant is present in an amount in the range of from about 0.001% to about 15% by weight of active surfactant of the AVS base fluid. The treatment fluid performs a subterranean formation operation.

Abstract: The present disclosure generally relates to corrosion inhibition, and, more specifically, to corrosion inhibition in acidic treatment fluids. The treatment fluids may comprise an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier. The corrosion inhibitor intensifier enhances the inhibitor corrosion action of a metal surface by the corrosion inhibitor at high temperatures. The corrosion inhibitor intensifier may be tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine, or any combination thereof.

Abstract: Certain metal surfaces are often unable to be effectively contacted with fluids containing hydrofluoric acid due to significant corrosion issues. Titanium and titanium alloy surfaces represent but one example. Corrosion inhibitor compositions comprising an N-(phosphonoalkyl)iminodiacetic acid or any salt thereof can be used to suppress metal corrosion, including that taking place on titanium and titanium alloy surfaces. Methods for suppressing corrosion of a metal surface can comprise: contacting a metal surface with a corrosive environment, the corrosive environment comprising hydrofluoric acid; introducing a corrosion inhibitor composition to the corrosive environment, the corrosion inhibitor composition comprising an N-(phosphonoalkyl)iminodiacetic acid or any salt thereof; contacting the metal surface with the corrosion inhibitor composition; and allowing the corrosion inhibitor composition to suppress corrosion of the metal surface being contacted by the corrosive environment.

Abstract: Methods and systems for treating a fracture. An example method comprises providing a treatment fluid comprising a solubilized polyester and a water-miscible solvent; dispersing the treatment fluid into an aqueous fluid; wherein the dispersing the treatment fluid into an aqueous fluid precipitates the solubilized polyester and forms an amorphous polymeric structure comprising the solid polyester; introducing the amorphous polymeric structure into a fracture within a subterranean formation; and allowing the amorphous polymeric structure to degrade.

Abstract: A composition and method for using seawater as a treatment fluid is provided. The treatment fluid comprises N-(phosphonomethyl)iminodiacetic acid and seawater. The provided treatment fluid is stable and viscous, even at high temperatures and a high pH.

Abstract: A method of treating in a subterranean formation including placing a corrosion inhibitor composition into a subterranean formation, where the formation includes an acidic environment having a pH of about 5 or below, where the composition includes: an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; an aqueous acid solution comprising HCl; and contacting a metal surface with the corrosion inhibitor composition. A corrosion inhibitor composition includes an organic solvent comprising an alcohol with a flash point of at least about 75° C.; a nitrogen containing compound; and an aqueous acid solution comprising HCl.

Abstract: The rapid reaction of hydrofluoric acid with siliceous materials can make it difficult to achieve localized dissolution of siliceous minerals during subterranean stimulation operations.

Abstract: Various embodiments disclosed relate to compositions for treatment of a subterranean formation, and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation that can include obtaining or providing a substantially solid composition. The substantially solid composition can include a hydrogen fluoride precursor salt and an amide hydrochloride salt. The method includes combining the substantially solid composition with a carrier fluid to form a mixture. The method includes placing the mixture in a subterranean formation downhole.

Abstract: Some metal surfaces are often unable to be contacted effectively with fluids containing hydrofluoric acid or acidic fluoride ions due to significant corrosion issues. Metal surfaces comprising titanium or a titanium alloy represent but one example. Corrosion inhibitor compositions comprising boric acid and other boron-containing compounds may at least partially suppress corrosion of titanium and titanium alloy surfaces.

Abstract: Systems and methods for the use of degradable polymers that are dissolved and/or plasticized in an organic solvent in subterranean treatments. In some embodiments, the methods comprise: providing a treatment fluid that comprises at least one organic solvent and one or more degradable polymers, wherein the treatment fluid does not comprise a significant amount of solid material comprising the one or more degradable polymers; introducing the treatment fluid into a well bore penetrating at least a portion of a subterranean formation; and contacting the treatment fluid with one or more aqueous fluids to form a solid precipitate comprising the one or more degradable polymers in the portion of the subterranean formation.

Abstract: Methods and compositions for stimulating oil or gas production from a well with a single treatment fluid for use in a combined acidizing and hydraulic fracturing treatment are provided. An embodiment is a method comprising: coating a plurality of proppant particulates with oil to form oil-coated proppant particulates; adding the oil-coated proppant particulates to a solution comprising water, an acid source, and an emulsifier, wherein the ratio of the oil coating the proppant particulates to the water in the solution is less than 20:80 by volume; and mixing the solution and the oil-coated proppant particulates to form a treatment fluid comprising a water-in-oil emulsion and the oil-coated proppant particulates.

Abstract: Methods of diverting fluid flow, controlling fluid loss, and/or providing zonal isolation in subterranean formations are provided. In some embodiments, the methods comprise: providing a particulate material that comprises an electrically controlled propellant; placing the particulate material in at least a first portion of the subterranean formation; introducing a treatment fluid into the subterranean formation; and allowing the particulate material to at least partially divert the flow of the treatment fluid away from the first portion of the formation.

Abstract: Provided are methods for selecting a treatment for a subterranean formation in accordance with the disclosure and the illustrated FIGs. An example method comprises obtaining a formation material, measuring a geomechanical property of the formation material, measuring a mineralogy of the formation material, preparing a predictive model for the formation material from the measured geomechanical property and the mineralogy of the formation material; wherein the predictive model analyzes production over time for a plurality of treatments for the formation material, wherein the formation material is treated with each treatment in the plurality of treatments and the geomechanical property and the mineralogy of the formation material are measured before and after an individual treatment, selecting the treatment having the greatest production from the plurality of treatments, and contacting the subterranean formation with the treatment.

Abstract: Provide are methods and systems for inhibiting corrosion of a metal surface. An example method comprises providing a treatment fluid comprising an aqueous carrier fluid and a polyhydroxyetheramine corrosion inhibitor; contacting the metal surface with the treatment fluid; and contacting the metal surface with a mineral acid. Another example method comprises providing a treatment fluid comprising an aqueous carrier fluid, a non-polyhydroxyetheramine corrosion inhibitor, and a polyhydroxyetheramine corrosion inhibitor intensifier; contacting the metal surface with the treatment fluid; and contacting the metal surface with an organic acid. An example system comprises a treatment fluid comprising a polyhydroxyetheramine, an acid, and an aqueous carrier fluid; mixing equipment capable of containing the treatment fluid; pumping equipment capable of pumping the treatment fluid into a wellbore; and the metal surface.