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Class Information
Number: 102/312
Name: Ammunition and explosives > Blasting > Patterned blasting > Borehole arrangement
Description: Subject matter wherein a blasting charge is in each of several boreholes.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8631744 Method of blasting multiple layers or levels of rock Jan. 21, 2014
8548609 Method and software product for designing drilling pattern for rock cavity excavation Oct. 1, 2013
8538698 Blasting method Sep. 17, 2013
8392014 Designing drilling pattern for excavating rock cavern Mar. 5, 2013
8365825 Suppressing voltage transients in perforation operations Feb. 5, 2013
8347962 Non frangible perforating gun system Jan. 8, 2013
8302523 Explosive well tool firing head Nov. 6, 2012
8261664 Loading of explosives Sep. 11, 2012
8256349 Tracking system for blast holes Sep. 4, 2012
8099240 Blasting method Jan. 17, 2012
8074737 Wireless perforating gun initiation Dec. 13, 2011
7975613 Blasting system and method Jul. 12, 2011
7775279 Debris-free perforating apparatus and technique Aug. 17, 2010
7721650 Modular time delay for actuating wellbore devices and methods for using same May. 25, 2010
7707939 Method of blasting May. 4, 2010
7694627 Blast sequence control Apr. 13, 2010
7673566 Method for use in a wellbore Mar. 9, 2010
7536942 Explosive pipe severing tool May. 26, 2009
7530397 Explosive pipe severing tool May. 12, 2009
7481166 Heat insulating container for a detonator Jan. 27, 2009
7406918 Method of blasting Aug. 5, 2008
7387162 Apparatus and method for selective actuation of downhole tools Jun. 17, 2008
7331291 Self-supporting air tube for blasting Feb. 19, 2008
7156023 Method for installing an ignition system, and ignition system Jan. 2, 2007
7107908 Firing-readiness diagnostic of a pyrotechnic device such as an electronic detonator Sep. 19, 2006
7086334 Staggered charging of slave devices such as in an electronic blasting system Aug. 8, 2006
6959765 Explosive pipe severing tool Nov. 1, 2005
6926096 Method for using a well perforating gun Aug. 9, 2005
6896059 Components and methods for use with explosives May. 24, 2005
6817298 Solid propellant gas generator with adjustable pressure pulse for well optimization Nov. 16, 2004
6805056 Method and apparatus for removing abandoned tubular members Oct. 19, 2004
6772105 Blasting method Aug. 3, 2004
6758124 Unique phasings and firing sequences for perforating guns Jul. 6, 2004
6679175 Cartridge and method for small charge breaking Jan. 20, 2004
6651564 High energy explosive for seismic methods Nov. 25, 2003
6644202 Blasting arrangement Nov. 11, 2003
6631684 Rock blasting method using air bladders embedded in loading layers Oct. 14, 2003
6591911 Multi-directional gun carrier method and apparatus Jul. 15, 2003
6557448 Method of and system for delivery of water-based explosives May. 6, 2003
6554081 Components and methods for use with explosives Apr. 29, 2003
6536349 Explosive system for casing damage repair Mar. 25, 2003
6527345 Method for excavating a tunnel rock face by drilling a pattern of lifter and line holes Mar. 4, 2003
6523449 Perforating gun Feb. 25, 2003
6523474 Shaped recesses in explosive carrier housings that provide for improved explosive performance Feb. 25, 2003
6520258 Encapsulant providing structural support for explosives Feb. 18, 2003
6520089 Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith Feb. 18, 2003
6505559 Well bore cutting and perforating devices and methods of manufacture Jan. 14, 2003
6499406 Blasting apparatus for forming horizontal underground cavities and blasting method using the same Dec. 31, 2002
6487973 Method and apparatus for locking charges into a charge holder Dec. 3, 2002
6460463 Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well Oct. 8, 2002

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