Perforating system for hydraulic fracturing operations
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United States of America Patent
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Jan 22, 2019
Grant Date -
Dec 17, 2015
app pub date -
Jun 17, 2014
filing date -
Jun 17, 2014
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Abstract
A perforating system for creating perforations that azimuthally circumscribe an inner wall of a wellbore, and that are at substantially the same depth in the wellbore. The perforating system includes perforating assemblies that are housed in a gun body and spaced axially apart. The perforating assemblies have shaped charges positioned at selective angles around an axis of the gun body and at substantially the same axial location in the gun body. Bulkheads are provided between adjacent shaped charges, so that initiating the shaped charges forms angularly spaced apart perforations in a tubular in which the perforating system is inserted. Pressurizing the wellbore with fracturing fluid extends the perforations into fractures, where the fractures are normal to an axis of the wellbore and in a plane of minimum stress.
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