| abstract |
A method for in situ treating a hydrocarbon-containing formation and producing hydrocarbon fluid from the formation comprises pyrolysis of hydrocarbons present in the formation while producing hydrocarbon fluid from the formation using pressure and temperature control such that the pressure is at least a pressure that can be calculated for the selected temperature, or temperature is, at a maximum, the temperature that can be calculated for the selected pressure from the equation where P is the absolute pressure, bar, T is the temperature, ° C, and A and B are set parameters that relate to properties, relevant quantities, composition and / or the quality of the produced hydrocarbon fluids. Preferably, the method further comprises the step of in situ forming a syngas, the step comprising forming a partially decomposed hydrocarbon containing formation that has been treated in accordance with said in situ treatment of a hydrocarbon containing formation and reacting the hydrocarbon containing formation with a syngas generating fluid. The syngas thus obtained is converted to hydrocarbons; and / or generating power by expanding and / or burning the produced syngas or using the produced syngas in a fuel cell. |