A coal formation may be treated using an in situ thermal process. A mixture of
hydrocarbons, H2, and/or other formation fluids may be produced from
the formation. Heat may be applied to the formation to raise a temperature of a
portion of the formation to a pyrolysis temperature. Heating may be controlled
such that at least a selected amount of a total organic carbon content of the hydrocarbon
material in the formation may be converted into formation fluids.
