Wells – Hydraulic fracturing device
Reexamination Certificate
2006-09-19
2006-09-19
Gay, Jennifer H. (Department: 3672)
Wells
Hydraulic fracturing device
C166S280100, C166S235000, C166S308100
Reexamination Certificate
active
07108060
ABSTRACT:
Method and apparatus for fracturing different levels of a completion interval in a well. A workstring lowers a fracturing string which, in turn, is comprised of a base pipe which is blank except for perforated sections spaced along its length. Screen may be provided over said sections to block the flow of sand into the base pipe. An alternate flow path (e.g. shunt tubes) extends along the base pipe and has one or more outlets spaced along its length. A slurry is flowed into the annulus surrounding the fracturing string. As liquid is lost from the slurry, sand from the slurry will form bridges at said perforated sections thereby isolating portions of the annulus. Slurry then flows through the shunts tube(s) and out into the isolated portions to fracture the different levels in the completion interval.
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ExxonMobil Oil Corporation
ExxonMobil Oil Corporation Law Dept.
Gay Jennifer H.
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