Methods and compositions regarding borate, cross-linking suspensions are disclosed that may include one or more non-clay suspending agents, at least 30 wt. % of one or more boron-containing minerals, and a water-based solvent. In additional embodiments, the suspensions may include one or more polyols, one or more additives, or both, wherein the additives, for example, may include stabilizing agents, dispersing agents, surfactants, wetting agents, anti-gelling agents, pour-point depressants, or combinations thereof. Turning to a different aspect of this disclosure are methods that may include mixing one or more non-clay suspending agents in a water-based solvent and adding, subsequent to this mixing, at least 30 wt. % of one or more boron-containing minerals. In other embodiments, example methods may also include adding one or more additives prior to adding at least 30 wt. % of one or more boron-containing minerals.

The method for well-stimulation through a wellbore in a rock formation is hydraulic fracturing under high temperature conditions. The method includes injecting a fracturing fluid system to the rock formation; fracturing the rock formation at a temperature between 150-260 degrees Celsius; and recovering fluid components of the fracturing fluid system from the wellbore and setting the proppant in the fractures. The fracturing fluid system includes proppant and a plurality of fluid components. The fluid components can include water, a gelling agent, and a stabilizer made of ascorbic acid. The ascorbic acid stabilizes viscosity of the gelling agent, adjusts pH, and delays cross linking. Amount of components and additional components, such as a cross-linking agent, a breaker, another adjusting agent and an inverting surfactant adjust the fracturing fluid system for well conditions and a type of treatment to be completed.

A fracturing fluid comprises an aqueous base fluid and a cationic polymer combined with a salt. The fracturing fluid may be used to fracture a subterranean formation. The cationic polymer in combination with a salt provides for reduced clay swelling, while maintaining the granularity and porosity of the formation, which thereby promotes the flow of hydrocarbons from the formation.

The method for well-stimulation through a wellbore in a rock formation is hydraulic fracturing under high temperature conditions. The method includes injecting a fracturing fluid system to the rock formation; fracturing the rock formation at a temperature between 150-260 degrees Celsius; and recovering fluid components of the fracturing fluid system from the wellbore and setting the proppant in the fractures. The fracturing fluid system includes proppant and a plurality of fluid components. The fluid components can include water, a gelling agent, and a stabilizer made of ascorbic acid. The ascorbic acid stabilizes viscosity of the gelling agent, adjusts pH, and delays cross linking. Amount of components and additional components, such as a cross-linking agent, a breaker, another adjusting agent and an inverting surfactant adjust the fracturing fluid system for well conditions and a type of treatment to be completed.

A method of servicing a wellbore comprising providing a degradable polymer and a delayed action construct within a portion of a wellbore, a subterranean formation or both; wherein the delayed action construct comprises (i) a degradation accelerator comprising an alkanolamine, an oligomer of aziridine, a polymer of azridine, a diamine, or combinations thereof, (ii) a solid support, and (iii) an encapsulating material; and placing the wellbore servicing fluid comprising the degradable polymer and delayed action construct into the wellbore, the subterranean formation or both.

Salt-tolerant friction-reducing terpolymer compositions are provided. The compositions can be used in a method of reducing friction resulting from turbulent flow in an aqueous fracturing fluid in a subterranean fracturing process.

Systems and methods for creating surfactant-polyelectrolyte complexes at a well site are provided. In one embodiment, the methods comprise: providing a first solution comprising at least one surfactant and a second solution comprising at least one polyelectrolyte; using a stop-flow mixing apparatus at a well site to mix the first and second solutions to form one or more surfactant-polyelectrolyte complexes; using a low-dose pumping apparatus at the well site to transfer the one or more surfactant-polyelectrolyte complexes from the stop-flow mixing apparatus to a blending apparatus at the well site; using the blending apparatus to mix the one or more surfactant-polyelectrolyte complexes with an aqueous base fluid to form a treatment fluid; and introducing the treatment fluid into a well bore penetrating at least a portion of a subterranean formation at the well site.

Methods of treating a subterranean formation having a vertically oriented fracture with a treatment fluid comprising an aqueous base fluid, a gelling agent, proppant particulates, and swellable particulates having an unswelled form and a swelled form; placing the treatment fluid into the vertically oriented fracture; swelling the swellable particulates at a first location against walls of the vertically oriented fracture, thereby forming a first swelled particulates plug; swelling the swellable particulates at a second location above or below the first location against the walls of the vertically oriented fracture, thereby forming a second swelled particulates plug; and settling the proppant particulates atop the first swelled particulates plug and the second swelled particulates plug to form a proppant-free channel.

The method for well-stimulation through a wellbore in a rock formation is hydraulic fracturing under high temperature conditions. The method includes injecting a fracturing fluid system to the rock formation; fracturing the rock formation at a temperature between 150-260 degrees Celsius; and recovering fluid components of the fracturing fluid system from the wellbore and setting the proppant in the fractures. The fracturing fluid system includes proppant and a plurality of fluid components. The fluid components can include water, a gelling agent, and a stabilizer made of ascorbic acid. The ascorbic acid stabilizes viscosity of the gelling agent, adjusts pH, and delays cross linking. Amount of components and additional components, such as a cross-linking agent, a breaker, another adjusting agent and an inverting surfactant adjust the fracturing fluid system for well conditions and a type of treatment to be completed.

Friction reducers for hydraulic fracturing fluids, hydraulic fracturing fluids containing the friction reducers, and methods of making and using same are disclosed. The friction reducers comprise ethylene oxide polymers, propylene oxide polymers, ethylene oxide-propylene oxide co-polymers, and combinations thereof, and can further comprise a dispersant, such as polypropylene glycol. The friction reducer formulations can be active across a wide range of brine salinities, and tolerant of high levels of divalent cations in solution. The friction reducers can have a cloud point temperature, above which temperature they can precipitate out of solution and deposit on a surface of a hydrocarbon-bearing formation to inhibit hydration of the shale formations lining the fractures.