INCREASING INJECTIVITY AND PRODUCTIVITY INDEXES OF A GAS WELL

摘要

The injectivity and productivity indexes of a well in fluid communication with a subterranean hydrocarbon reservoir used for the storage of hydrocarbon is enhanced by injecting 1-500 gallons of a micellar dispersion per vertical foot of reservoir and then displacing the micellar dispersion out into the reservoir. Preferably 0.1-50 volumes of water per volume of micellar dispersion is injected after the micellar dispersion and preferably gas is injected behind the water to displace substantially all of the water out into the reservoir and to re-establish a gas phase in the immediate vicinity of the well bore.