Abstract: 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.

Abstract: 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.

Abstract: A method for producing hydrocarbons from a well that includes a borehole, production tubing in the borehole, and an annulus between the production tubing and the borehole, the borehole containing an undesirable amount of liquid, comprises the steps of: a) providing a source of liquefied natural gas (LNG), b) regasifying the LNG, c) pressurizing the regasified LNG to a pressure above the pressure in the annulus, d) injecting the pressurized regasified LNG into the annulus, e) allowing the pressurized regasified LNG to flow into and up through the production tubing; thereby reducing the amount of liquid in the borehole, f) recovering the pressurized regasified LNG along with produced gas and transmitting both.