Systems, methods, and compositions that provide an energized natural gas (ENG) fracturing fluid including a complexing agent. A fracturing fluid may include: methane; water; a complexing agent; a surfactant; and wherein the fracturing fluid is an emulsion, the water is in a continuous phase of the emulsion, and methane is in a discrete phase of the emulsion.

There is provided a downhole flow control apparatus comprising: a housing; a port extending through the housing; a passage disposed within the housing for conducting material to and from the port; a flow control member displaceable relative to the port; and a flow control member actuator configured for producing a pressurized fluid for urging the displacement of the flow control member.

The disclosed embodiments include a method, apparatus, and computer program product for determining optimal flow control device (FCD) properties that would yield to a prescribed shape of the injection flow rate profile. For example, in one embodiment, a computer implemented method is configured to perform the steps of: determining a reference location along a production length of the injection well; determining a reference value equal to the injection flow rate profile at the reference location along the production length of the injection well; defining a target injection profile using the reference value; determining a pressure distribution along the production length of the injection well based on the target injection profile; determining a FCD distribution profile using the target injection profile and the pressure distribution; and determining FCD properties that yields the target injection profile based on the FCD distribution profile.

There is provided a downhole flow control apparatus comprising: a housing; a port extending through the housing; a passage disposed within the housing for conducting material to and from the port; a flow control member displaceable relative to the port; and a flow control member actuator configured for producing a pressurized fluid for urging the displacement of the flow control member.

Y-Grade NGL fracturing systems and methods of using Y-Grade NGL stimulation fluids.

A method for producing hydrocarbons includes the steps of a) providing a source of liquefied natural gas (LNG), b) regasifying the LNG at the well, c) pressurizing the regasified LNG above the formation pressure, d) injecting the pressurized LNG into the well, e) allowing the injection stream to flow into the producing formation, and f) recovering and transporting the regasified LNG and produced gas from the formation. The injection stream may include at least 85% methane and no more than 5 PPM water. Step f) may be carried out without separating the recovered gases. Step d) may continue for at least 24 hours. Step b) may comprise passing the LNG through a vaporizer. Step c) may be carried out before step b). An apparatus for injecting regasified LNG into a hydrocarbon formation may comprise an LNG tank, a vaporizer, a compressor, and a fluid connection to the producing formation.

A ball drop two stage valve includes a tubular having a body defined by an outer surface and an inner surface that defines a fluid flow path. A stimulation port is formed in the body. The stimulation port extends through the body. At least one flow port is formed in the body longitudinally spaced from the stimulation port. The at least one flow port extends through the body. A first sleeve is slidingly positioned along the fluid flow path in the body. The first sleeve includes a first ball seat and is selectively positionable to selectively block flow through the stimulation port. A second sleeve is slidingly positioned along the fluid flow path in the body. The second sleeve includes a second ball seat and is selectively positionable to selectively block flow through the flow port and the stimulation port.

A method includes introducing a treatment fluid including a first polymer gel into a subterranean formation to generate a production fluid having an aqueous portion and a hydrocarbon portion, treating the aqueous portion of the production fluid with chlorine dioxide to separate additional hydrocarbons from the aqueous portion, and adjusting the viscosity of the treated aqueous portion prior to introducing the treated aqueous portion back into the subterranean formation.

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.

System and methods of controlling fluid diversion during stimulation treatments are provided. Real-time measurements are obtained from a plurality of fiber-optic data sources at a well site during a stimulation treatment being performed along a portion of a wellbore within a subsurface formation. Fracture growth and stress within the subsurface formation surrounding the portion of the wellbore are determined as the stimulation treatment is performed, based on the real-time measurements and a fully-coupled diversion model. An amount of diverter for a diversion phase of the stimulation treatment to be performed along the portion of the wellbore is determined, based on the fracture growth and the stress within the subsurface formation. The diversion phase of the stimulation treatment is performed by injecting the amount of diverter into the subsurface formation via at least one injection point located along the portion of the wellbore.