Apparatus and method for sequentially packing an interval of a wellbore

摘要

An apparatus (38) and method for sequentially packing an interval of a wellbore (32) is disclosed. The apparatus (38) comprises a cross-over assembly (40) having first and second exit ports (58, 62). The cross-over assembly (40) has a fracturing configuration wherein the first exit port (58) is open and the second exit port (62) is closed and a gravel packing configuration wherein the first exit port (58) is closed and the second exit port (62) is open. The apparatus (38) also includes a gravel packing assembly (42) that has an inlet that receives the gravel packing slurry from the second exit port (62) and a plurality of outlets (72) that allow for the delivery the gravel slurry to a plurality of locations along the length of a sand control screen (52).