Abstract: A method of drilling a subterranean formation includes providing an invert emulsion fluid comprising an oleaginous continuous phase; an internal phase comprising water; bentonite; and mixed metal layered hydroxides comprising hydroxide ions associated with at least two metal cations wherein one is divalent and another is trivalent; and drilling the subterranean formation with the drilling fluid. Invert emulsion drilling fluids include an oleaginous continuous phase; an internal phase comprising water; sodium bentonite; and mixed metal layered hydroxides comprising hydroxide ions associated with at least two metal cations.

Abstract: An efficient and cost-effective process of carbon dioxide recycling in enhanced oil recovery wells or in fracturing wells is provided. The process comprises recovering a hydrocarbon enriched stream of condensed carbon dioxide from and enhanced oil recovery (EOR) well or a fracturing well; adding to said stream one or more thickeners; and directing the thickened stream to the EOR well or fracturing well for recycled usage in EOR.

Abstract: A process for producing gaseous hydrocarbon from a subterranean formation by hydraulically fracturing with injection of a liquid material under pressure such that a connecting fracture is generated extending between a lower injection well and an upper production well, where a gas-liquid interface is defined within the fracture or within the upper producing well, and producing gas across the gas-liquid interface.

Abstract: A wellbore strengthening composition may include a base fluid and at least one polymer functionalized with electrochemically activated groups. A method of treating a wellbore may include emplacing, in at least a selected region of the wellbore, a wellbore strengthening composition including a base fluid and at least one polymer functionalized with electrochemically activated groups. The method may also include emplacing a downhole tool capable of generating a voltage potential in the wellbore and applying a voltage potential in the wellbore with the downhole tool.

Abstract: Methods including preparing a silanization composition comprising an aqueous base fluid and an alkyltrialkoxysilane; coating the silanization composition at least partially onto proppant particulates, thereby forming coated proppant particulates, wherein the silanization composition imparts hydrophobicity to the proppant particulates; and introducing the coated proppant particulates into a subterranean formation. The alkyltrialkoxysilane in the silanization composition may have the formula R1(OR2)3Si, where R1 is a C8 to C22 alkyl chain and R2 is an alkyl group selected from the group consisting of methyl, ethyl, butyl, tert-butyl, isopropyl, and any combination thereof.

Abstract: A method of using a swellable polymer downhole may include introducing a first treatment fluid comprising a first aqueous fluid, a salt with a multivalent cation, and the swellable polymer into a wellbore penetrating a subterranean formation; placing the swellable polymer in a portion of the subterranean formation; contacting the swellable polymer in the portion of the subterranean formation with a second treatment fluid comprising a second aqueous fluid and at least one selected from the group consisting of a precipitating agent, a chelating agent, and a combination thereof; and swelling the swellable polymer in the portion of the subterranean formation, thereby reducing fluid flow through the portion of the subterranean formation.

Abstract: A method of improving flow of liquids and gases from a subterranean fracture using a viscosified fracture fluid 1 formed by combining a solid proppant, a binding agent and an enzyme to form a proppant-immobilized enzyme 2, mixing the proppant-immobilized enzyme 2 with a second proppant 3 to form a heterogeneous proppant pack 4 and mixing said heterogeneous proppant pack 4 with a gelled liquid fracturing fluid 5 to form the viscosified fracture fluid 1 containing the heterogeneous proppant pack 4. The viscosified fracture fluid 1 containing the heterogeneous proppant pack 4 is pumped 6 into a subterranean zone 7 to form one or more fractures therein. The proppant-immobilized enzyme 2 that is part of the heterogeneous proppant pack 4 has the dual purpose of propping open the subterranean fractures and reducing the viscosity of the viscosified fracture fluid.

Abstract: Disclosed are traceable polymeric additives that comprise a tagging material and methods of using the traceable polymeric additives in subterranean applications, such as cementing. An embodiment discloses a well treatment composition comprising a base fluid and a traceable polymeric additive comprising a polymer and a tagging material.

Abstract: Methods and compositions for the prevention of the formation, breakdown, and/or removal of gelled layers in an oil and/or gas well are provided. In some embodiments, the compositions and methods comprise a concentrate, as described in more detail herein, where the concentrate comprises two or more surfactants. In certain embodiments, the compositions and methods comprise an emulsion or a microemulsion. The emulsion or microemulsion may include a surfactant, optionally a solvent, and optionally a freezing point depression agent or other components.

Abstract: A method of initiating or accelerating the establishment of fluid communication between injection and production wells located in a formation, including injecting sufficient solvent into the wellbores of the wells such that the solvent occupies more than the horizontal sections of the wells; pressurizing the solvent column in the injection wellbore and optionally also the solvent column in the production wellbore by injecting gas such that the pressures at the toe and heel of the horizontal section of the injection well and optionally the production well are greater than a fracture pressure of the formation; maintaining the pressure in the injection wellbore and optionally also the production wellbore; depressurizing the injection wellbore and optionally the production wellbore, either simultaneously or consecutively in the case where both wellbores have been pressurized; and repeating the pressurization and depressurization steps for at least one more cycle to generate pressure swings.

Abstract: Some embodiments provide a method comprising a) introducing a delayed-release acid and a gelling agent into a subterranean formation at a rate and pressure sufficient to create or enhance at least one fracture in a first treatment interval; b) contacting the delayed-release acid with a face of the fracture in the first treatment interval so as to etch one or more channels thereon; c) introducing a combination of non-degradable and degradable micro-proppant particulates into the subterranean formation so as to place them into the fracture in the first treatment interval, wherein they at least partially inhibit fluid flow therethrough; d) introducing a combination of non-degradable and degradable proppant particulates into the subterranean formation so as to place them into the fracture in the first treatment interval, wherein they at least partially inhibit fluid flow therethrough; e) repeating (a) through (d) at a second treatment interval.

Abstract: A process of producing liquid oil from shale gas condensate reservoirs and, more particularly, to increase liquid oil production by huff-n-puff in shale gas condensate reservoirs. The process includes performing a huff-n-puff gas injection mode and flowing the bottom-hole pressure lower than the dew point pressure.

Abstract: Described are a molded product having an effective thickness of 1 mm or more, the molded product being formed from an aliphatic polyester resin composition containing from 1 to 30 parts by mass of a carboxylic acid anhydride and preferably further containing from 1 to 50 parts by mass of at least one type of a short fiber reinforcing material, a thermoplastic elastomer, or an acrylic rubber core-shell polymer per 100 parts by mass of an aliphatic polyester resin containing not less than 50 mass % of a polyglycolic acid resin, the effective thickness being 1 mm or more; a downhole tool for hydrocarbon resource recovery formed from the molded product having an effective thickness of 1 mm or more; an aliphatic polyester resin composition for the downhole tool member for hydrocarbon resource recovery; and a well drilling method.

Abstract: A method for reducing fluid loss from a water-based wellbore servicing fluid is disclosed. The method includes preparing a fluid loss control additive that is substantially stable even at a high temperature of about 350° F. The fluid loss control additive may be formulated by dry mixing of a natural starch and sodium monochloroacetate for a first predetermined reaction time period; spraying an alkaline solution onto the dry mixture for a second predetermined reaction time period to form a complex starch mixture; and treating the complex starch mixture for a third predetermined reaction time period with a diluted cross-linking agent.

Abstract: An aqueous composition comprising a mineral acid, a fixing agent and water present in an amount sufficient to dissolve the mineral acid and the fixing agent. The fixing agent comprises at least one of an amine and/or an amide containing compound having a dipole moment of at least 3 when in the aqueous composition.

Abstract: Mineral particles may provide for wellbore fluids with tailorable properties and capabilities, and methods relating thereto. Mineral particles may be utilized in methods that include introducing a wellbore fluid having a density of about 7 ppg to about 50 ppg into a wellbore penetrating a subterranean formation, the wellbore fluid comprising a base fluid and a plurality of mineral particles, and the wellbore fluid having a first viscosity; contacting at least some of the mineral particles with a linking agent so as to link the at least some of the mineral particles, thereby increasing the first viscosity to a second viscosity.

Abstract: A method and composition for reducing a coefficient of friction are disclosed. In an embodiment, a method for reducing a coefficient of friction between two surfaces in a borehole includes preparing a mixture comprising a primary lubricating agent, a primary surfactant, a spreading agent, and an aqueous fluid. The method also includes pumping the mixture into the borehole such that the mixture contacts the two surfaces and reduces the coefficient of friction for the two surfaces.

Abstract: A method of enhancing oil recovery by use of conformance control involves the provision of a plugging material which is designed to be formed within an area of high-permeability in preference to an area of low permeability in order that subsequent water, gas or chemical flooding can enhance oil recovery from the area/region of low permeability.

Abstract: The inhibition of anionic surfactant retention phenomena in an oil reservoir, especially in a carbonate-based or argillaceous reservoir, by the use of at least one compound corresponding to the formula R—O-(A)m-H, in which R is a hydrocarbon-based group comprising from 6 to 40 carbon atoms, A is a hexose or pentose unit, and m is a non-zero number ranging from 1 to 10, is described herein.

Abstract: A water injection system that includes a primary water injection line; an injection fluid supply tank; a high pressure injection pump in fluid communication with the injection fluid supply and primary water injection line for pumping injection fluid in injection fluid supply tank through the primary water injection line; a polymer gel supply tank; and a high pressure chemical injection pump in fluid communication with the polymer gel supply tank and the water injection line configured to pump polymer gel having a viscosity of at least about 50,000 cP (at 20° C. measured using a Bohlin Rheometer CSR 50, cone and plate measuring system CP 4°/40 mm, single shear rate 1/s) in the polymer gel supply tank into the water injection line for mixture with injection fluid is disclosed.