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7624681 |
Initiator activated by a stimulus
A detonator assembly for initiating an explosive comprises a power source, an initiator, and a switch coupled between the power source and initiator. The switch has a trigger input responsive to a...
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7621342 |
Method for retaining debris in a perforating apparatus
A perforating apparatus ( 100 ) includes a plurality of shaped charges ( 102 ) each having an initiation end and a discharge end. A detonating cord ( 116 ) is operably coupled to the initiation...
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7603938 |
Method and apparatus for fluid removal from a container
A method and apparatus for removing fluid from a container using a conventional shaped charge such as those used in well perforation; the charge being spaced from the container wall, and producing...
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7493861 |
Tandem shaped charge warhead having a confined forward charge and a light-weight blast shield
A tandem shaped charge warhead having a forward charge and a rear charge mounted in tandem along a charge axis. The forward charge has a shaped charge liner with an explosive surrounding it, along...
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7430965 |
Debris retention perforating apparatus and method for use of same
A perforating apparatus ( 100 ) includes a plurality of shaped charges ( 102 ) each having an initiation end and a discharge end. A detonating cord ( 116 ) is operably coupled to the initiation...
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7299734 |
Synchronously/synergeticly timed fuse procedure or process
A synchronous or synergeticly timed fuse is installed into ordnance (bombs, artillery shells, depth charges etc.), the ordnance is delivered to a target area and a simultaneous (synchronous), or a...
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7228907 |
High energy gas fracturing charge device and method of use
A high energy gas fracturing device, adapted to be lowered into a well. The device comprises a closed tube made of strong material, sized to fit into the well and having at least one sidewall,...
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7172023 |
Perforating gun assembly and method for enhancing perforation depth
A perforating gun assembly ( 110 ) for creating communication paths for fluid between a formation ( 114 ) and a cased wellbore ( 116 ) includes a housing, a detonator and a detonating cord ( 136 )....
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6991044 |
High-energy combined well perforating device
The invention relates to a perforating device comprising one or more perforating gun ( 1 ) installed in a perforating body ( 9 ), a perforating gun head ( 2 ) in the uppermost end of the...
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6941871 |
Faceted expansion relief perforating device
The present invention is an improvement in the design of a perforating gun to perforate the casing in oil and gas wells. Perforating guns have a cylindrical body member with explosive charges at...
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6792866 |
Circular shaped charge
A circular shaped charge and methods of manufacture, shipping and assembly. An circular shaped charge is manufactured as two separate charge halves, upper and lower, and a separate continuous liner...
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6758124 |
Unique phasings and firing sequences for perforating guns
A unique phasing pattern is provided that maximizes the effective perforation geometry of a wellbore. The improvement overcomes the problems associated with multi-phase guns of the past that failed...
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6523449 |
Perforating gun
A technique includes arranging perforating charges of a perforating gun into groups of adjacent perforating charges. Each perforating charge of each group is aligned in a direction associated with...
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6505559 |
Well bore cutting and perforating devices and methods of manufacture
A tubing and casing cutter is shown which can be assembled in the field from a plurality of pressed segmented pellets of free standing explosive material. The segmented pellets have a liner glued...
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6499406 |
Blasting apparatus for forming horizontal underground cavities and blasting method using the same
Disclosed herein is a blasting apparatus for forming horizontal underground cavities and blasting method using the same. The blasting apparatus includes a metallic body horizontally formed through...
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6494139 |
Hole boring charge assembly
A hole boring charge assembly suitable for explosively forming a wide borehole in a concrete target consists of a detonatable array of at least three hollow charges ( 12 ) having recessed, lined...
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6397947 |
Optimizing charge phasing of a perforating gun
A method includes arranging shaped charges in a perforating gun to produce perforation holes in a helical pattern that is defined in part by a phase angle; and choosing four adjacent perforation...
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6347673 |
Perforating guns having multiple configurations
A perforating gun system includes shaped charges and a carrier housing containing the shaped charges and having a pattern of scallops (or other forms of perforating jet passageways). The shaped...
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6269725 |
Fluid-filled bomb-disrupting apparatus and method
An apparatus and method for disarming improvised bombs are disclosed. The apparatus comprises a fluid-filled bottle or container made of plastic or another soft material which contains a fixed or...
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6216596 |
Zinc alloy shaped charge
A shaped charge is shown with enhanced creep resistance for use in a perforating gun having an elongated spiral strip open to the wellbore through which the charges are attached. The shaped charge...
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6167957 |
Helical perforating gun
A perforating gun for use in underground wells where the gun includes a forward guiding element and a rearward conveyancing element. These two elements are interconnected by way of a series of bow...
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5837925 |
Shaped charge retainer system
An apparatus and method for retaining shaped charges. A foam core having charge carrying recesses can be constructed from a single piece or from multiple sections. Shaped charges are insertable...
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5816343 |
Phased perforating guns
A perforating gun having a base structure made of a deformable material. The base structure includes support rings integrally attached to one another by connector portions. The capsule charges are...
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5785130 |
High density perforating gun system
A high density perforating gun having a carrier housing tube and an interior charge holder tube through which are mounted zinc alloy shaped charges in a phased relationship between about 135 and...
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5619008 |
High density perforating system
A well perforating apparatus for generating a plurality of material perforating jets. A base has a plurality of recesses or apertures, and a liner is proximate to the base and is indented into each...
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5612505 |
Dual mode warhead
A dual mode warhead is provided for use against both soft and hard targets nd capable of sensing which type of target has been struck comprising a casing made of a ductile material containing an...
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5542480 |
Perforating gun with retrievable mounting strips
A longitudinally slotted carrier having one end adapted for mounting on a tubing string, the carrier being nonplanar, with a slotted configuration and interior dimensions to enable capsule charge...
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5524546 |
Breeching device
A breaching device comprising a regular polygon structure in which identi, rectangular, concave flying plate devices (shape charges) form the sides of the polygon, and a strong, rigid, lightweight...
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5524524 |
Integrated spacing and orientation control system
An integrated spacing and orientation control system is provided for carrying an array of objects and maintaining a predetermined orientation of the objects and a predetermined spacing between...
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5479860 |
Shaped-charge with simultaneous multi-point initiation of explosives
An apparatus for perforating an earth formation from a borehole having a housing, a detonator assembly, explosive material for producing the implosion forces and a metal liner of implosive...
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5460095 |
Mounting apparatus for expendable bar carrier shaped-charges
The invention is a lid for a shaped charge which enables application of torque to the shaped charge for mounting in an expendable bar carrier borehole penetrating gun assembly. The lid comprises a...
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5377594 |
Flexible linear explosive cutting or fracturing charge
The invention provides a linear explosive cutting or fracturing charge comprising a plurality of elements connected together for articulation. Each element comprises a body portion (1) defining a...
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5331895 |
Shaped charges and their manufacture
A shaped charge liner formed of a solid metallic material having a fine grain size of the order of 25 microns or less. The material can be, for example, copper, uranium, tantalum or an alloy...
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5253585 |
Explosive pipe crimping method and devices
A main charge of explosive is positioned symmetrically about a passageway-forming tubular member, such as a well pipe assembly. The charge is outwardly and radially spaced from the member and is...
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5119729 |
Process for producing a hollow charge with a metallic lining
A hollow charge for piercing armor built up of several layers of differing densities, the metallic lining of which has three-dimensional isotropy and the density of which corresponds at least...
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5111746 |
Multiple stage munition
A munition and method for making a borehole in a target and for placement an explosive unit in the borehole. The munition includes an outer body having a chamber, an inner body disposed in the...
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5095999 |
Through tubing perforating gun including a plurality of phased capsule charges mounted on a retrievable base strip via a plurality of shatterable support rings
A through-tubing perforating gun includes an angularly shaped base strip having first and second surfaces and including a plurality of recesses in the first surface and a plurality of recesses in...
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5046563 |
Apparatus and method for cutting an object in a well
A cutting tool to cut a tubular element in a well is constructed of pellets of less sensitive explosive material detonated by a pellet of a more sensitive explosive material. All the explosive...
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5038683 |
High explosive assembly for projecting high velocity long rods
A high explosive assembly and a method are disclosed for projecting a long od at high velocity with enhanced penetrating energy. The high explosive assembly has an elongated core of a first high...
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5024158 |
Multi-directional initiator for explosives
A method of blasting cap-sensitive, non-nitroglycerine-sensitized explosives and an initiating assembly for use in the method are provided. The method comprises initiating a column of the...
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5007486 |
Perforating gun assembly and universal perforating charge clip apparatus
A perforating gun assembly and universal perforating charge clip apparatus in which a universal design of the charge and the charge clip include trapping of the detonating or firing cord, a lock-in...
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4979443 |
Liner for a warhead with protruding central portion
An improved liner for a warhead having a shaped explosive charge for the production of a projectile by explosive reshaping of the liner includes a liner body having a central region which has a...
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4976199 |
Blasting system and its method of control
A blasting system wherein the actuation of detonators at a plurality of blast holes is controlled by firing one or more test blasts and, at each blast hole, monitoring the resulting shock wave to...
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4955939 |
Shaped charge with explosively driven liquid follow through
Disclosed is a non-fragmenting explosive device for perforating a target injecting a material through the perforation to disrupt structure behind the target. The device is particularly adapted to...
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4919050 |
Well perforating device
An improved well perforating device comprising a body member in the form of a cylindrical pressure vessel containing shaped explosive charges positioned normal to the longitudinal axis of the body...
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4915029 |
Shaped charge carrier assembly method
A shaped charge carrier assembly includes a thin wall carrier having a charge opening disposed therethrough for freely receiving a shaped charge therein. A deformable retaining device is integrally...
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4905601 |
Explosive entry and cutting device and a method of explosive entry and cutting
This invention relates to an explosive-containing device for cutting dense material, the device being particularly useful in forced entry situations, e.g. in law enforcement situations or where an...
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4901619 |
Shaped charge with barrier produced in situ
In the inventive shaped charge, the main charge and the propagating charge are held together solely by the barrier. This union is possible (and is distinguished by pronounced freedom from flaws)...
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4896609 |
Planar shock wave generator and enhancer device
An explosive planar shock wave generator produces a planar wave that trav down a shape charge cone to give amplified force on the jet. In all embodiments radial waves are converted to planar waves...
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4889183 |
Method and apparatus for retaining shaped charges
The invention provides a perforating assembly and a method and apparatus for retaining shaped charges in a charge carrier. A shaped charge body has two clips associated with it: a band clip having...
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