Abstract: A method of removing condensate banking in a subsurface formation using a treatment fluid includes injecting a treatment fluid including nanoparticles and a thermochemical component, the thermochemical component including sodium nitrite and ammonium chloride, into a wellbore having condensate banking, thereby exposing the treatment fluid to subsurface formation conditions. The method further includes allowing a temperature of the wellbore to activate the thermochemical component, causing an exothermic reaction generating nitrogen gas, pressure, and heat. The method further includes allowing the treatment fluid and generated nitrogen gas to mix with the condensate banking, thereby forming a homogenous multi-phase foam and lowering hydrostatic pressure in the wellbore. The method further includes allowing the homogenous multi-phase foam to flow back to the surface due to the pressure generated by the exothermic reaction and lowered hydrostatic pressure in the wellbore, thereby removing the condensate banking.

Abstract: Method of making and using a proppant from captured carbon in either a carbon mineralization process or in a carbon nanomaterial manufacturing process is discussed, followed by treatments to ensure the quality control of the proppants so that they are suitable for use in hydraulic and other reservoir fracturing methods.

Abstract: A thermochemical soap stick, system, and method for unloading liquid from a well, the thermochemical soap stick having thermochemical reagents and to be provided into a wellbore in a subterranean formation, the thermochemical soap stick to dissolve in the liquid giving a thermochemical reaction to generate gas to foam the liquid, and displacing the liquid from the wellbore via pressure of the subterranean formation.

Abstract: A wiper plug can be used in wellbore operations. The wiper plug can include a fishing neck located at a rear portion of the plug. The fishing neck can be a male or female fishing neck. A corresponding male or female fishing tool can be used to retrieve the wiper plug from a tubing string. The wiper plug can include a nose that can land on a landing tool or a female fishing neck of another wiper plug. The wiper plug can be introduced into the tubing string before or after a cement composition. The wiper plug can include a rupture disk that allows an operator at a wellhead to observe a pressure change to indicate the location of the wiper plug and fluid within the tubing string.

Abstract: Methods concerning the thermal insulation of oil and gas wells are disclosed herein. In some embodiments a thermal insulating fluid is inserted into the well completion sequence for thermally insulating a well at a desired depth to reduce paraffin and precipitate formation, improve oil flow rate, and reduce pressure build up in one or more annuli of the well. In other embodiments, the casing of a desired annulus in a completed well is perforated to permit a thermally insulating fluid to be pumped into the annulus and spotted at a desired depth.

Abstract: A section of casing within a wellbore is milled. After milling the section of the wellbore, the section of the wellbore is underreamed through to a next layer of casing. A setting fluid is squeezed into the section. The setting fluid penetrates micro-channels exposed by the milling and underreaming. A scab liner is installed over the section. The scab liner is secured within the wellbore.

Abstract: A method includes injecting an injection fluid through a well and to a depth of a formation, where the injection fluid includes phase-changing nanodroplets having a liquid core and a shell. The method also includes exposing the phase-changing nanodroplets to an external stimulus at the depth of the formation, wherein the liquid core of the phase-changing nanodroplets undergoes a liquid-to-vapor phase change causing the phase-changing nanodroplets to expand, and stimulating the formation at a near wellbore region by expansion of the phase-changing nanodroplets.

Abstract: A downhole tool can be used as a fill valve to circulate a fluid, such as a spacer fluid, through the tool. The tool can include a top and bottom flapper valve and an inner and outer sliding sleeve. The sliding sleeves can be shifted together to allow the top flapper valve to close. Continued shifting of the inner sleeve can cause the bottom flapper valve to close. A cementing operation can then be performed through the tool. Sealing elements can be located between the outside of the inner sleeve and inside of the outer sleeve. Sealing elements can also be located between the outside of the outer sleeve and the inside of a tool mandrel. The sealing elements can prevent debris from becoming lodged within the tool.

Abstract: The invention provides a suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof, relating to the field of oil and gas production technologies. The suspension modifier is a controlled release nanoemulsion and comprises surface hydrophobic modifier, surfactant, cosurfactant and water. The suspension modifier is directly added into clear-water or active-water fracturing fluid while the proppant is added into water. After stirring, the suspension modifier is capable of self-assembling and being adsorbed on the proppant surface, so that the proppant surface becomes hydrophobic and aerophilic. The invention no longer requires the proppant to be pretreated, and the bubble-suspended proppant can be obtained directly by adding the suspension modifier to the clear-water or active-water fracturing fluid, and meanwhile adding the proppant to the fracturing fluid.

Abstract: Coated proppants include a proppant particle, a surface copolymer layer surrounding the proppant particle, and a resin layer surrounding the surface copolymer layer. The surface copolymer layer includes a copolymer of at least two monomers chosen from styrene, methyl methacrylate, ethylene, propylene, butylene, imides, urethanes, sulfones, carbonates, and acrylamides, where the copolymer is crosslinked by divinyl benzene. The resin layer includes a cured resin.

Abstract: A method for the stimulation of a hydrocarbon-bearing formation, said method comprising the steps of: providing a wellbore in need of stimulation; inserting a plug in the wellbore at a location slightly beyond a predetermined location; inserting a perforating tool and a spearhead or breakdown acid into the wellbore; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for stimulation; removing the tool form the wellbore; and initiating the stimulation of the perforated area using a stimulation fluid. Also disclosed is a corrosion inhibiting composition for us with the acid composition.

Abstract: Rotating a casing during a cementing operation to ensure efficient displacement of cement slurry. More specifically, embodiments are directed towards a sub and rotating tool that are positioned above a first cement operation, wherein the rotating tool is positioned in a kickoff point or build section of a horizontal well.

Abstract: Surfactants for use in formulations and processes suitable for hydrocarbon recovery. These formulations, include formulations suitable for fracking, enhancing oil and or gas recovery, and the recovery and or production of bio-based oils.

Abstract: Methods and systems for cementing in a wellbore. An example method includes introducing a conduit into a wellbore. The conduit comprises a reactive metal element disposed on an exterior of the conduit. The reactive metal element comprises a reactive metal having a first volume. The method further includes circulating a cement over the exterior of the conduit and the reactive metal element, contacting the reactive metal element with a fluid that reacts with the reactive metal to produce a reaction product having a second volume greater than the first volume, and contacting a surface of the cement adjacent to the reactive metal element with the reaction product.

Abstract: The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations.

Abstract: Compositions and methods for the use in scale inhibitor squeeze treatments are provided. In some embodiments the present disclosure provides a method including introducing a pre-flush fluid into at least a portion of a subterranean formation, the pre-flush fluid including a choline chloride chemical additive; and introducing a treatment fluid including a scale inhibitor into the portion of the subterranean formation after at least a portion of the pre-flush fluid has been introduced into the portion of the subterranean formation.

Abstract: A fluid separating device includes a cylinder; a plurality of separators disposed around the cylinder; a first elastic piece disposed between one of the separators and the cylinder and applying an elastic force to the separator outward in a radial direction of the cylinder; a mandrel passing through the cylinder axially and configured to reciprocate between an expanded position and a contracted position in an axial direction of the cylinder; an elastic energy storage device slidably passing through the cylinder along the radial direction of the cylinder, the elastic energy storage device having one end connected to the mandrel and another end connected to the separator, the elastic energy storage device being configured to apply another elastic force to the mandrel in a direction from the contracted position to the expanded position; a first locking structure disposed on the cylinder; and a second locking structure disposed on the mandrel.

Abstract: The present disclosure provides methods and systems for hydrofracturing processes utilizing native drilling cuttings to enhance wellbore permeability. The native drilling cuttings are obtained during drilling operations and may be used in hydrofracturing applications without further grinding or processing. The native drilling cuttings can be combined into a slurry and injected into a well for the hydrofracturing application. In some cases, the native drilling cuttings are dried before combining them with the slurry.

Abstract: A well system is provided that includes an injection wellbore having a configuration that traverses an injection formation and has a horizontal configuration. The injection wellbore also has a configuration such that a treatment fluid and a CO2 fluid may be introduced into the injection wellbore and also selectively introduced into a treatment zone. The treatment fluid comprises water and basalt nanoparticles. The injection wellbore has a configuration such that the treatment zone is positioned in a horizontal portion of the injection wellbore. Each treatment zone includes a treatment unit. The treatment unit is configured to selectively introduce a fluid into the treatment zone. The treatment zone is in fluid communication with the injection formation. A method for treating an injection formation includes introducing a treatment fluid into a well system as previously described, selectively introducing the treatment fluid into a treatment zone, and monitoring the injection formation.

Abstract: A wellbore isolation assembly includes an outer component and an inner component. The outer component is disposed at a first location in a wellbore. The inner component is disposed at a second location in the wellbore. The inner component is moved from the second location into engagement with the outer component at the first location to form a barrier within the wellbore. When deployed in the wellbore, the barrier inhibits passage of fluids. The wellbore isolation assembly is then retrieved from the wellbore.