Patent ID: 8695710
Filing Date: 2014-04-15
Classification: E21B

Abstract:
1. A method of individually servicing a plurality of zones of a subterranean formation comprising: providing a work string comprising: positioning the first sleeve system proximate to a first zone of the subterranean formation and the second sleeve system proximate to a second zone of the subterranean formation which is uphole relative to the first zone; circulating an obturator through the work string; contacting the obturator with a seat of the second sleeve system; applying pressure to the obturator such that the second sleeve system transitions to the second mode and the obturator passes through the seat of the second sleeve system; contacting the obturator with a seat of the first sleeve system; applying pressure to the obturator such that the first sleeve system transitions to the second mode and the obturator passes through the seat of the first sleeve system; allowing the first sleeve system to transition from the second mode to the third mode; communicating a servicing fluid to the first zone via the first one or more ports of the first sleeve system; and after communicating the servicing fluid to the first zone via the first one or more ports, restricting fluid communication via the first one or more ports.