Abstract: Described herein are methods and techniques for deep reservoir stimulation of a hydrocarbon-containing subsurface formation. The methods may comprise introducing or injecting a formation-dissolving fluid, such as a wet acid-forming gas, into the subsurface formation; allowing the formation-dissolving fluid, such as the wet acid-forming gas, to react with the subsurface formation for a period of time; and producing hydrocarbons from the subsurface formation.

Abstract: A subsurface autonomous inflow control device for a wellbore, the inflow control device comprising a tubular base pipe having one or more through-openings for receiving production fluids within a wellbore. The inflow control device further includes a housing residing along an outer diameter of the tubular base pipe and covering the one or more through-openings. The housing comprises a fluid inlet configured to receive production fluids from a subsurface formation, and a hydrophobic material positioned within the housing between the fluid inlet and the through-openings. The hydrophobic material provides a network of pores that permits a flow of hydrocarbon fluids there through en route to the through-openings, but the hydrophobic material blocks the passage of aqueous fluids there through. A method for completing a wellbore having the porous, hydrophobic inflow control device is also provided.

Abstract: Described herein are methods and techniques for deep reservoir stimulation of a hydrocarbon-containing subsurface formation. The methods may comprise introducing or injecting a formation-dissolving fluid, such as a wet acid-forming gas, into the subsurface formation; allowing the formation-dissolving fluid, such as the wet acid-forming gas, to react with the subsurface formation for a period of time; and producing hydrocarbons from the subsurface formation.

Abstract: A method for producing methane from a coalbed formation including the accelerated dewatering of the coalbed formation including determining the location of water influx into the coal formation and determining an area to form a permeability barrier in the coal formation to reduce the water influx into the coal formation. A strongly adsorbing fluid is injected through one or more injection wells into the area to form a permeability barrier to the influx of the water. One or more methane production wells are drilled into the coal formation and methane is produced from the coal formation.