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7360599 Debris reduction perforating apparatus and method for use of same  
A perforating apparatus ( 100 ) includes a plurality of shaped charges ( 102 ) each having a case, an initiation end and a discharge end. A detonating cord ( 116 ) is operably associated with the...
7360587 Debris reduction perforating apparatus  
A perforating apparatus ( 100 ) includes a plurality of shaped charges ( 102 ) each having a case, an initiation end and a discharge end. A detonating cord ( 116 ) is operably associated with the...
7350448 Perforating apparatus, firing assembly, and method  
A firing assembly for activating a perforating device comprising a module having a first chamber and a second chamber. The firing assembly comprises a firing head for transferring ballistic energy...
7347279 Charge holder apparatus  
An adapter is provided for holding and mounting a shaped charge having a non-standard size into a standard loading tube of a hollow carrier gun. The adapter may include a housing assembly having an...
7278484 Techniques and systems associated with perforation and the installation of downhole tools  
A technique to install a tool in a well includes running the tool into the well and fixing the tool to the well with a fixing agent without pumping the fixing agent through a central passageway of...
7237486 Low debris perforating gun system for oriented perforating  
Disclosed herein is a shaped charge assembly for use in a perforating gun. The shaped charge assembly includes a shaped charge combined with a longitudinal spine extending along a portion of a...
7216708 Reactive stimulation of oil and gas wells  
A method and apparatus for stimulating producing strata in oil or gas wells. The formation is penetrated using existing shaped charges, and an oxygen-rich material then is introduced into the...
7195066 Engineered solution for controlled buoyancy perforating  
The weight of a shaped charge carrier is predetermined as a buoyancy control parameter for perforating guns. Each charge carrier comprises a co-axial assembly of inner and outer carrier units. Both...
7159657 Shaped charge loading tube for perforating gun  
The loading tube comprises cups forming cup cavities for enclosing an explosive charge within each of the cups. The loading tube has ridges and valleys providing longitudinal and lateral strength...
7117956 Pipe conveyed explosive with self contained actuation  
A pipe conveyed charge system, for example a junk shot, having a self-contained activating charge which may be activated by mechanical force applied through the pipe. The initiating charge is...
7114564 Method and apparatus for orienting perforating devices  
The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided...
7104326 Apparatus and method for severing pipe utilizing a multi-point initiation explosive device  
A system and method for making and using a multi-point initiation explosive device that produces an enhanced pressure wave for severing tubing, pipe or casing in an oil or gas well. At least two...
7000699 Method and apparatus for orienting perforating devices and confirming their orientation  
The present invention provides an apparatus and method of orienting perforating gun strings. One embodiment of the present invention provides an orienting weight provided in a portion of 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...
6877562 Oil well perforator  
This invention relates to the field of oil wells and in particular to the explosive and other devices that are used to perforate oil well casings and hydrocarbon bearing rocks in order to create...
6851471 Perforating gun  
A perforating gun assembly useful in hydrocarbon well completion. The gun is assembled in a carrier made from straight walled tubing as a primary structural member with complementary male and...
6805056 Method and apparatus for removing abandoned tubular members  
A method and apparatus for removing a tubular member (e.g., leg of an abandoned or obsolete fixed platforms in a marine environment) is provided. The apparatus includes a delivery system having a...
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...
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...
6708762 Methods and apparatus for forming a lateral wellbore  
The present invention discloses and claims methods and apparatus for forming an opening or a window in a downhole tubular for the subsequent formation of a lateral wellbore. In one aspect of the...
6702039 Perforating gun carriers and their methods of manufacture  
The subject matter of the present invention relates to perforating gun carriers and their methods of manufacture. In one embodiment of the present invention, high strength, uniform wall thickness...
6675896 Detonation transfer subassembly and method for use of same  
A detonation transfer subassembly for coupling two detonation activated tools in a work sting such that the work string may be severed between the two detonation activated tools without risk of a...
6662883 Charge tube assembly for a perforating gun  
A charge tube assembly for a perforating gun includes a tubular body having opposed ends. Integrally formed engagement members are positioned at each of the opposed ends. Detachable end plates are...
6619176 Thinned-skirt shaped-charge liner  
The embodiments of the present invention involve a thinned-skirt shaped-charge liner, a shaped-charge explosive incorporating the liner, and methods for making the liner. The focus of the most...
6557650 Method and apparatus for protecting explosives  
A method and apparatus to protect explosive components used in various tools, such as tools for use in wellbores, includes a component with an adsorptive material. Example tools include perforating...
6497285 Low debris shaped charge perforating apparatus and method for use of same  
A shaped charge perforating apparatus ( 50 ) for perforating a subterranean well is disclosed. The shaped charge perforating apparatus ( 50 ) comprises a support member ( 62 ) having a plurality of...
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...
6464019 Perforating charge case  
A perforating charge case is made by a process that includes cold forming a material into a shape for the perforating charge case. The cold forming produces additional recrystallization nucleation...
6401818 Wellbore perforation method and apparatus  
A method and apparatus is described for increasing hydrocarbon production from a production well by determining a bedding plane (permeability anisotropy) of a hydrocarbon bearing formation and...
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...
6386296 Method and apparatus of protecting explosives  
A method and apparatus to protect explosive components used in various tools, such as tools for use in wellbores, includes a component with an adsorptive material. Example tools include perforating...
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...
6336506 Apparatus and method for perforating and stimulating a subterranean formation  
A method and apparatus for perforating and stimulating a subterranean formation which is penetrated by a well bore having casing positioned therein so as to establish fluid communication between...
6298924 Safety method and apparatus for a perforating gun  
An apparatus for use in a subterranean well includes a downhole energy source, a first switch, a second switch, a detonator, a first controller and a second controller. The first switch has a first...
6298913 Explosive pipe cutting device  
An explosive pipe cutter assembly (10, 10') has a housing (20, 20') which defines at its closed end a hemispherical shaped nose end (22, 22') and contains a toroidal shaped charge (48) comprised of...
6283214 Optimum perforation design and technique to minimize sand intrusion  
The present Invention relates to novel devices and methods to minimize the production of sand in subterranean environments; in particular, in poorly consolidated formations, sand is often...
6098707 Perforation gun for well casing  
A perforating gun for perforating a section of a well casing in which a plurality of explosive charge units are mounted on an elongated mounting strip in a pattern corresponding to the desired...
6062310 Full bore gun system  
A tubing conveyed perforating apparatus is shown which includes a tubular assembly made up of a plurality of tubular sections. A plurality of explosive charges are located within the interior bore...
6014933 Downhole charge carrier  
An improved downhole explosive charge carrier is disclosed. The invention uses a unique staggered charge pattern and a mounting configuration which allows the use of a straight, axially-located...
5960894 Expendable tubing conveyed perforator  
The invention is directed to an expendable tubing conveyed perforator, comprising (a) an outer tube made from a material having high strength and low impact resistance; and (b) an inner structure...
5907132 Apparatus and method for illuminating 3-D geologic targets with P and S wavefields generated by explosives that generate directionally controlled force vectors  
Methods and apparatus for creating as shear ("S") wave for use in oil and gas exploration, where such S-wave is created by detonating an explosive packaging in a shot hole in a manner that produces...
5829538 Full bore gun system and method  
A tubing conveyed perforating apparatus is shown which includes a tubular assembly made up of a plurality of tubular sections. One or more elongate charge holders are located within the interior...
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...
5814758 Apparatus for discharging a high speed jet to penetrate a target  
A flexible linear shaped charge for discharging a high speed jet to penetrate a target comprising an outer housing which includes a sheath and the high speed jet, the high speed jet being integral...
5797464 System for producing high density, extra large well perforations  
A shaped charge and liner having a minimum outside diameter determined by the formula: D L =2.625-0.3571(6 -D ID ) Where: D L =Liner Minimum Outside Diameter D ID =Carrier Inside...
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...
5777257 Shaped charge assembly with truncated liner  
The invention relates to an explosive charge assembly for cutting tubular members, particularly underwater. The assembly is lowered into the tubular member to a distance where the cut is to be...
5775426 Apparatus and method for perforating and stimulating a subterranean formation  
A method and apparatus for perforating and stimulating a subterranean formation which is penetrated by a well bore having casing positioned therein so as to establish fluid communication between...
5701964 Perforating charge carrier assembly and method  
A through-tubing perforating gun and method is provided. The assembly comprises an elongated carrier strip, a plurality of perforating charges, and means for connecting the plurality of charges to...
5698814 Hard target penetrator with multi-segmenting casing cutter  
A penetrating bomb weapon comprising a long hollow cylinder constructed of high strength steel or similar material and including a pointed nose to aid in penetration of media such as concrete,...
Matches 1 - 50 out of 268 1 2 3 4 5 6 >