SYSTEM AND METHOD FOR SERVICING A WELLBORE

摘要

Disclosed herein is a wellbore servicing system, comprising a tubular string, a first sleeve system incorporated within the tubular string, the first sleeve system comprising a first sliding sleeve (260) at least partially carried within a first ported case (208), the first sleeve system being selectively restricted from movement relative to the first ported case by a first restrictor (274) while the first restrictor is enabled, and a first delay system (268,291) configured to selectively restrict movement of the first sliding sleeve relative to the first ported case while the first restrictor is disabled; a second sleeve system incorporated within the tubular string, the second sleeve system comprising a second sliding sleeve at least partially carried within a second ported case, the second sleeve system being selectively restricted from movement relative to the second ported case by a second restrictor while the second restrictor is enabled. The restrictor (274) is held in place by shear pin (284). In order to disable restrictor (274) a drop ball is seated on set (270) and pressure is increased to shear pin (284). Seat (270) is comprised of three or more radial segments. A protective sheath (272) is covering one or more surfaces of the seat to protect the set from contact with well fluid and to retain the segments in the close conformation.