SYSTEM AND METHOD FOR SERVICING A WELLBORE

摘要

A wellbore servicing apparatus, comprising a housing defining an axial flowbore (261) and comprising ports (215), a first sleeve (240), a second sleeve (260) movable relative to the housing (210) from (a) a first position in which the second sleeve obstructs fluid communication via the ports of the housing to (b) a second position in which the second sleeve allows fluid communication via the ports of the housing, and wherein the first sleeve is movable relative to the housing from (a) a first position in which the first sleeve does not allow a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position to (b) a second position in which the first sleeve allows a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position, and an expandable seat (280).