C09K8/905

Structural stabilizer for fiber and conventional proppant complex in efficient proppant migration and placement technology of fractured well and preparation method

A structural stabilizer for a fiber and proppant complex to enhance proppant migration and placement in a fractured well during propping and a preparation method thereof are provided. The structural stabilizer consists of: water, inorganic salt, kaolinite, nitrogen-doped modified graphene oxide, anionic surfactant, non-ionic alkyl polyglucoside, and polyacrylamide. The structural stabilizer improves bonding between a proppant and a fiber when slick water is used in stimulated reservoir volume (SRV) fracturing, prevents separation of the fiber and the proppant during migration, thereby reducing escape rate of the fiber from the fiber and proppant complex.

REFINED BETA-GLUCAN AND METHODS OF MAKING THE SAME

Refined beta-glucans, such as scleroglucan or schizophyllan, and methods of making and using the same, such as for treating subterranean formations. A method of making a refined beta-glucan includes filtering a solution of a crude beta-glucan.

Hydrocarbon formation treatment micellar solutions

A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.

DECREASING PROPPANT EMBEDMENT WITH AMINE-FUNCTIONALIZED POLYSACCHARIDES

Proppant embedment can sometimes be problematic during fracturing operations. A partially oxidized, amine-functionalized polysaccharide comprising a plurality of oxidatively opened monosaccharide units and bearing an amine moiety at one or more sites of oxidative opening may lessen the amount of proppant embedment that occurs. Fracturing methods may comprise providing a fracturing fluid comprising such a partially oxidized, amine-functionalized polysaccharide and a plurality of proppant particulates, introducing the fracturing fluid into a subterranean formation at a hydraulic pressure sufficient to create or extend one or more fractures therein, such that at least a portion of the plurality of proppant particulates become localized in the one or more fractures, and releasing the hydraulic pressure. Upon releasing the hydraulic pressure, embedment of the proppant particulates in a face of the one or more fractures is about 10% to about 40% of a grain size of the proppant particulates. Regain permeability may also increase.

Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing

Improved hydraulic fracturing compositions are disclosed which help reduce potential negative environmental impact by hydraulic fracturing. The disclosed compositions have flammability and toxicity and are relatively safe for the environment. The compositions may also contain biodegradable components.

REFINED BETA-GLUCAN AND METHODS OF MAINTAINING FILTERABILITY OF BETA-GLUCAN COMPOSITIONS AT VARIOUS SALINITIES

Various aspects relate to refined beta-glucans and methods of maintaining filterability of compositions including beta-glucans at various salinities. A refined beta-glucan forms an aqueous beta-glucan composition including 1 g/L of the refined beta-glucan, the aqueous beta-glucan composition having a salinity of 100,000 ppm TDS or less and having a Filterability Ratio of less than 2 at a temperature of at least 50 C.

BETA-GLUCAN COMPOSITIONS INCLUDING SURFACTANT
20210009892 · 2021-01-14 · ·

Beta-glucan compositions including surfactants and methods of using the same, such as for treatment of subterranean formations. An aqueous beta-glucan composition includes a beta-glucan and a surfactant.

Subterranean stimulation operations utilizing degradable pre-coated particulates

Degradable particulates may allow for temporary redirection or occlusion of a fluid within a subterranean formation. However, many types of degradable particulates can be problematic for large-scale use, such as during subterranean treatment operations. Methods for treating a subterranean formation using degradable particulates may comprise: providing pre-coated particulates comprising a latently dissolvable core and a transient coating surrounding the latently dissolvable core, the latently dissolvable core and the transient coating comprising different materials; and introducing a treatment fluid comprising a carrier fluid and a plurality of the pre-coated particulates into a wellbore penetrating a subterranean formation in conjunction with a stimulation operation, a material comprising the latently dissolvable core being soluble in the carrier fluid or a formation fluid present within the subterranean formation.

Phosphonated polysaccharides and gels and process for making same

Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.

Treatment fluids comprising recycled drilling cuttings and method of use

A method that includes providing a treatment fluid having an aqueous base fluid and ground drilling cuttings and placing the treatment fluid in a subterranean formation.