Apparatus and method for perforating and stimulating a subterranean formation
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United States of America Patent
Stats
-
Jan 8, 2002
Grant Date -
May 24, 2001
app pub date -
Dec 12, 2000
filing date -
Sep 9, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for perforating and stimulating a subterranean formation which is penetrated by a well bore having casing positioned therein so as to establish fluid communication between the formation and the well bore. Substantially rigid, flexible, or liquid propellant is interposed between the casing and at least one shaped charge in a subterranean well bore and is ignited due to the shock, heat and/or pressure generated from the detonated charge. Upon burning, the propellant material generates gases which clean perforations formed in the formation by detonation of the shaped charge(s) and which extend fluid communication between the formation and the well bore.
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