A method of altering wettability of a subterranean formation penetrated by a well is described. A first oxidizer including a persulfate is introduced to the subterranean formation. A second oxidizer including a bromate is introduced to the subterranean formation. The well is shut in for a period of time to allow the first oxidizer and the second oxidizer to alter the wettability of the subterranean formation toward non-wetting of oil and of water.

Methods and systems for predicting properties of well bore treatment fluids are disclosed. An embodiment includes a method of predicting fluid properties comprising: determining an operational window for a well bore fluid system; collecting data at vertices of the operational window; and developing a model comprising predicted properties for a plurality of data points within the operational window, wherein developing the model uses Barycentric interpolation.

A method of fracturing a formation with a fracturing fluid in a wellbore extending into the formation includes pumping a spacer fluid through a spacer fluid channel into the wellbore and pumping a proppant slurry through a proppant slurry channel into the wellbore separately from the spacer fluid. The method further includes combining the spacer fluid and the proppant slurry within the wellbore to create the fracturing fluid with portions comprising varied proppant concentrations and pumping the fracturing fluid with the varied proppant concentrations into the formation.

A method and composition of treating an oil or gas well having a wellbore, well casing, production equipment or recovery equipment. The method involves introducing into the wellbore, well casing, production equipment or recovery equipment a high flash point solvent blend. The blend includes at least one C.sub.1-C.sub.4 ester of a C.sub.16-C.sub.20 fatty acid component, at least one terpene hydrocarbon component (e.g., a pure gum turpentine, an oil of turpentine, or mixture thereof), and optionally at least one emulsifier component. The weight percent ratio of the at least one C.sub.1-C.sub.4 ester of a C.sub.16-C.sub.20 fatty acid component to the at least one terpene hydrocarbon component is from about 60:40 weight percent to about 95:5 weight percent, based on the total weight of the blend. The blend has a flash point greater than about 140 F. The blend may be biodegradable, and has no ozone depleting compounds, no hazardous air pollutants, and no carcinogens.

A method and composition of treating an oil or gas well having a wellbore, well casing, production equipment or recovery equipment. The method involves introducing into the wellbore, well casing, production equipment or recovery equipment a high flash point solvent blend. The blend includes at least one C.sub.1-C.sub.4 ester of a C.sub.16-C.sub.20 fatty acid component, at least one terpene hydrocarbon component (e.g., a pure gum turpentine, an oil of turpentine, or mixture thereof), and optionally at least one emulsifier component. The weight percent ratio of the at least one C.sub.1-C.sub.4 ester of a C.sub.16-C.sub.20 fatty acid component to the at least one terpene hydrocarbon component is from about 60:40 weight percent to about 95:5 weight percent, based on the total weight of the blend. The blend has a flash point greater than about 140 F. The blend may be biodegradable, and has no ozone depleting compounds, no hazardous air pollutants, and no carcinogens.

A method for reducing lost circulation in a subterranean formation. The method includes providing a treatment fluid comprising a base fluid and a lost circulation material comprising red mud. The treatment fluid is introduced into a wellbore within the subterranean formation such that at least a portion of the red mud bridges openings in the subterranean formation to reduce loss of fluid circulation into the subterranean formation.

The present application describes compositions and methods for the controlled delivery of acid to a desired location, for example to a subterranean formation.

A method of treating in a subterranean formation including combining an aqueous base fluid, an oil based fluid, a hydrophobic proppant, and a non-hydrophobic proppant to form an immiscible fluid system; and introducing the immiscible fluid system into the subterranean formation. A method of treating includes combining an aqueous base fluid, an oil based fluid, a hydrophobic proppant, and a non-hydrophobic proppant to form an immiscible fluid system; introducing the immiscible fluid system into a fracture in the formation; allowing the immiscible fluid system to separate into at least two separate phases, wherein the oil based fluid and hydrophobic proppant to form proppant aggregates and the aqueous based fluid to act as a spacer fluid surrounding at least a portion of the proppant aggregates; and removing the spacer fluid from the fracture during flowback stage or well production to form proppant-free channels between proppant aggregates.

The present disclosure relates to a method of treating a subterranean formation comprising creating at least one fracture in the subterranean formation, providing a fracturing fluid comprising proppant particulates and a geopolymer composition coated on the proppant particulates, wherein the geopolymer composition comprises an aluminosilicate source, a metal silicate source, and an activator, alternately injecting a spacer fluid and the fracturing fluid into the fracture such that a plurality of proppant aggregates are disposed in the fracture surrounded by the spacer fluid, wherein the proppant aggregates each comprise a portion of the proppant particulates coated with a volume of the geopolymer composition; and allowing the geopolymer composition to set in the formation such that the proppant aggregates gain consolidation strength.

Systems and methods for treating subterranean formations using solid particulates comprising compounds having an aminopolycarboxylic functional group and a phosphoric acid functional group. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a plurality of solid particulates, wherein the solid particulates comprise at least one compound having an aminocarboxylic functional group and a phosphonic functional group, and wherein the solid particulates have a diameter from about 0.1 microns to about 5 millimeters; and introducing the fluid into a wellbore penetrating a portion of a subterranean formation at a rate and pressure sufficient to create or enhance one or more fractures in the subterranean formation.