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9038713 Shaped charge casing cutter  
A shaped charge casing cutter is constructed with the cutter explosive formed into radial section modules aligned in a toroidal cavity between a pair of housing plates. The center sections of the...
9022116 Shaped charge tubing cutter  
A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the...
8919253 Perforating string with magnetohydrodynamic initiation transfer  
A perforating system that transfers a detonation wave between adjacent perforating guns by converting shockwave energy to electrical energy. An explosive is provided on an end of a detonating cord...
8904935 Holder that converges jets created by a plurality of shape charges  
A shape charge holder includes a platform where all the charges are symmetrically positioned about equidistance from each adjacent charge and about an equal distance from a center point. The...
8807003 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating  
A method comprises providing a gun string assembly within a wellbore and perforating the wellbore using the gun string assembly. The gun string assembly comprises a plurality of perforating guns...
8789468 Reactive material breaching device  
A breaching device that may be used to create a linear and, if desired, continuous, cut or breach in a metal structure. The cut or breach created may be non-linear in shape and not deviate from...
8739673 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating  
A method comprises: a. determining a configuration of a gun string, b. determining, by a computer, a pressure transient at a location in a wellbore, c. comparing the one or more pressures with the...
8555764 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating  
A downhole tool gun string assembly comprises a first perforating gun operable to generate a first pressure at a first location in a wellbore, wherein the first perforating gun comprises a first...
8505454 Electromagnetic formed shaped charge liners  
A perforating apparatus according to one or more aspects of the present disclosure comprises a carrier adapted to be deployed in a wellbore; a shaped explosive charge mounted on the carrier, the...
8479653 Low-vulnerability pyrotechnical charge  
Pyrotechnic charges that include an explosion generator and an explosive having an outer surface divided into n segments, each segment having kq multiple ignition points for the explosive, k and q...
8336437 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating  
A perforating gun assembly for use in a wellbore. The perforating gun assembly includes a carrier gun body and a charge holder disposed within the carrier gun body. A plurality of shaped charges...
8327746 Wellbore perforating devices  
Wellbore perforating devices are disclosed. In one example, a wellbore perforating device includes a plurality of shaped charges and a holder that holds the plurality of shaped charges so that...
8302534 Radial-linear shaped charge pipe cutter  
A radial-linear shaped charge pipe cutter is constructed with the booster explosive packed intimately into a booster aperture that is bored axially through the charge upper end plate. The cutter...
8286706 Pressure compensation for a perforating gun  
A perforating system having a perforating gun with a pressurizable gun body. The gun body can be pressurized prior to deployment in a wellbore, or while in the wellbore. Pressurizing the gun body...
8033224 Spiral linear shaped charge jet  
The invention represents a novel system for controlling the yield of an explosive charge that enables the explosive yield to be selected or decreased from full-yield detonation incrementally down...
7984674 Perforating charge for use in a well  
A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner...
7913758 Oil well perforators and method of use  
A method for completing an oil and gas well completion is provided. The perforators (10, 11) may be selected from any known or commonly used perforators and are typically deployed in a perforation...
7886647 Synchronously timed fuse procedure or process  
A synchronously timed fused is installed into ordnance the ordnance is delivered to a target area, in a shaped charge formation and a simultaneous explosion event occurs.
7878119 Perforating charge for use in a well  
A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner...
7819064 Shaped charge and a perforating gun  
A shaped charge comprises a shell, an explosive charge disposed inside the shell, and a first liner for retaining the explosive charge within the shell. The shaped charge further comprises an acid...
7762193 Perforating charge for use in a well  
A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner...
7661366 Signal conducting detonating cord  
A downhole perforating device includes: a perforating gun having incorporated therein at least two shape charges; an elongated detonating cord incorporated with the perforating gun and extending...
7661367 Radial-linear shaped charge pipe cutter  
A radial-linear shaped charge pipe cutter is constructed with the booster explosive packed intimately into a booster aperture that is bored axially through the charge upper end plate. The cutter...
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...
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 ends of...
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...
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...
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 ends of...
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...
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,...
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). The...
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 perforating...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...

Matches 1 - 50 out of 204 1 2 3 4 5 >