Method of treating wells

Claim 1

AN IMPROVED METHOD FORM MAINTAINING AND INCREASING THE PRODUCTION OF A WELL IN A PRODUCING EARTH FORMATION BY REMOVING MUD AND EARTH PARTICLES FROM THE FORMATION ADJACENT SAID WELL TO THEREBY INCREASE THE PERMEABILITY OF THE FORMATION COMPRISING THE STEPS OF POSITIONING A PLURALITY OF SUPPLEMENTARY WELLS AROUNT THE WELL AND SPACED THEREFROM FOR A DISTANCE OF 2 TO 5 METERS, SAID SUPPLEMENTARY WELLS BEING IN FLUID COMMUNICATION WITH THE WELL THROUGH THE EARTH FORMATION, INJECTING A PRESSURE FLUID INTO THE WELL AND INTO THE SUPPLEMENTARY WELLS, SAID PRESSURE FLUID BEING INJECTED INTO EACH WELL TO DRIVE THE SAME INTO THE SURROUNDING EARTH FORMATION, CONTINUING THE PRESSURE FLUID APPLICATION TO BUILD UP THE PRESSURE OF THE PRESSURE FLUID AND ANY FORMATION FLUID ADJACENT THE WELLS, HALTING THE FLOW OF PRESSURE FLUID INTO THE WELL WHILE MAINTAINING THE FLOW OF PRESSURE FLUID AT LEAST SOME OF THE SUPPLEMENTARY WELLS, THEREAFTER WITHDRAWING THE FLUID AND LOOSENED EARTH FORMATION FROM THE WELL, AND PERIODICALLY REPEATING THE ABOVE CYCLE UNTIL ALL FLUID WITHDRAWN IS SUBSTANITALLY FREE OF EARTH FORMATION.