System and method for longitudinal and lateral jetting in a wellbore
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United States of America Patent
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Jun 19, 2012
Grant Date -
Sep 30, 2010
app pub date -
Jul 10, 2009
filing date -
Mar 26, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for enabling longitudinal and radial drilling in a wellbore is described. The system and method enable an operator to perforate the casing of a wellbore with an under-reamer at the end of a drill string and, without removing the drill string from the wellbore, initiate and complete lateral jetting of the wellbore into the surrounding formation. The system utilizes a perforation tool having a ball seat, which upon seating a drop ball in the ball seat enables the perforation tool to move from a closed position to an open position thereby allowing access to the formation using a jetting tool. Prior to seating the drop ball, an under-reaming operation may be performed using a hydraulic pressure activated under-reaming tool.
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