Perforating gun with variable free gun volume
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United States of America Patent
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-
Aug 5, 2014
Grant Date -
Jul 19, 2012
app pub date -
Jan 6, 2012
filing date -
Jan 19, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of adjusting a pressure reduction to occur in a wellbore following firing of at least one perforating gun can include determining a desired free gun volume which corresponds to a desired pressure reduction in the wellbore resulting from firing of the perforating gun, and varying a free gun volume of the perforating gun until the free gun volume is substantially the same as the desired free gun volume. A well system can include at least one perforating gun positioned in a wellbore, the perforating gun comprising multiple perforating charges and a free gun volume, and the free gun volume being reduced by presence of a flowable material about the multiple perforating charges.
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