Patent ID: 6520255
Filing Date: 2003-02-18
Classification: E21B

Abstract:
A method of perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore, said method comprising:(a) deploying a bottom-hole assembly (â€œBHAâ€ ) using deployment means within said wellbore, said BHA having at least one perforating device and at least one sealing mechanism, said perforating device being positioned below said sealing mechanism; (b) using said at least one perforating device to perforate an interval of said one or more subterranean formations; (c) actuating said at least one sealing mechanism so as to establish a hydraulic seal in said wellbore; (d) pumping a treating fluid in said wellbore and into the perforations created by said perforating device, without removing said perforating device from said wellbore; (e) releasing said sealing mechanism; and (f) repeating steps (b) through (e) for at least one additional interval of said one or more subterranean formations.