Abstract: A method of modeling electromagnetic heating for oil recovery for a wide range of frequencies includes arranging a plurality of electrodes and/or antennas in an array in a multi-layer earth model of a reservoir formation, wherein the arranging includes selecting a number of electrodes/antennas and an array topology; selecting a frequency of the array; determining a temperature profile of the reservoir using the frequency and reservoir formation characteristics; providing the a heat rate to a reservoir simulator; inputting reservoir characteristics into the reservoir simulator; calculating, by processor, an oil recovery production rate of the reservoir based on the heat rate and reservoir characteristics; and graphically displaying the oil recovery production rate.

Abstract: A method of modeling electromagnetic heating for oil recovery for a wide range of frequencies includes arranging a plurality of electrodes and/or antennas in an array in a multi-layer earth model of a reservoir formation, wherein the arranging includes selecting a number of electrodes/antennas and an array topology; selecting a frequency of the array; determining a temperature profile of the reservoir using the frequency and reservoir formation characteristics; providing the a heat rate to a reservoir simulator; inputting reservoir characteristics into the reservoir simulator; calculating, by processor, an oil recovery production rate of the reservoir based on the heat rate and reservoir characteristics; and graphically displaying the oil recovery production rate.

Abstract: A process for recovering methane from a coal bed and/or sequestering a fluid more strongly adsorbing than methane (“SAG”) in a coal bed involves fracturing an injection well and cyclically injecting SAG with intervening shut-in periods. Even though the absolute permeability of the coal bed decreases with continued SAG sorption, the SAG injectivity, surprisingly and unexpectedly, increases while injecting SAG at pressures greater than reservoir pressure, but less than fracture pressure or fracture extension pressure. The increased injectivity is thought to be due to a reduction in near-well flow resistance.