Structure for gunpowder charge in multi-frac composite perforating device
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United States of America Patent
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Mar 29, 2016
Grant Date -
Apr 23, 2015
app pub date -
Dec 23, 2014
filing date -
Dec 15, 2011
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Abstract
This invention provides a multi-frac composite perforation device having (i) a gun body having an outer wall, (ii) an inner gunpowder box between adjacent perforating charges in the charge frame 1 of said perforation device, and (iii) a structure for gunpowder charge with an outer gunpowder box 4 attached to an outer wall of the charge frame 1, the gun body has a pressure releasing structure corresponding to a closed end of the perforating charge. This invention further provides a method of using the multi-frac composite perforating device to fracture a formation and the choice of gunpowders and gun body thickness with regards to the pressure required for fracturing a formation.
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