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8167044 |
Shaped charge
A perforating apparatus that is usable with a well includes a shaped charge. The shaped charge includes a case, an explosive and a liner. The liner is adapted to form a perforation jet to form a...
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8074737 |
Wireless perforating gun initiation
A perforating system and method for wellbore perforating. The system comprises a perforating string having a perforating gun with shaped charges, a communication module for receiving detonation...
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8061425 |
System and method for dynamically adjusting the center of gravity of a perforating apparatus
A perforating apparatus (240) used to perforate a subterranean well. The perforating apparatus (240) includes a generally tubular gun carrier (106) and a charge holder (242) rotatably mounted...
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7997353 |
Through tubing perforating gun
An apparatus for perforating wells has perforating charges and a means for retaining the perforating charges in a first array The first array has a first maximum cross sectional area; and means for...
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7987911 |
Oil well perforators
An oil and gas well shaped charge perforator is provided comprising a housing, a high explosive, and a liner with a further insert liner where the high explosive is positioned between the liner and...
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7934558 |
System and method for dynamically adjusting the center of gravity of a perforating apparatus
A perforating apparatus (100) used to perforate a subterranean well. The perforating apparatus (100) includes a generally tubular gun carrier (106) and a charge holder (104) rotatably mounted...
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7913761 |
System and method for enhanced wellbore perforations
A method for perforating a subterranean formation includes positioning a shaped charge and a reactant composite material in a carrier; positioning the carrier in the wellbore; detonating the shaped...
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7909115 |
Method for perforating utilizing a shaped charge in acidizing operations
A shaped charge includes: a charge case; an explosive disposed inside the charge case; and a liner for retaining the explosive in the charge case, wherein the liner is fabricated from a material...
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7828051 |
Perforating gun
An improved perforating gun having a tubular housing, a tubular carrier and a charge carried by the tubular carrier. The tubular carrier comprises an inside diameter, an outside diameter and an...
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7770662 |
Ballistic systems having an impedance barrier
A shaped charge assembly for use in a perforating gun that comprises a shaped charge holder, two or more shaped charges, slots formed to receive the shaped charges, and an impedance barrier...
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7762351 |
Exposed hollow carrier perforation gun and charge holder
The perforation gun is comprised of a tubular carrier, a charge holder, a plurality of sealed charges, and a detonating cord. The tubular carrier has a length and a plurality of openings. The...
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7752971 |
Adapter for shaped charge casing
A shaped charge for use with a perforating gun having an adapter that can couple the shaped charge with perforating gun systems of more than one size. An interference fit can couple the adapter to...
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7735578 |
Perforating system with shaped charge case having a modified boss
A perforating gun having a charge case with a boss element partially circumscribing Optionally the pair of bosses may be included that are substantially symmetric about the axis of the charge case....
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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 ends of...
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7610969 |
Perforating methods and devices for high wellbore pressure applications
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive...
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7493958 |
Technique and apparatus for multiple zone perforating
A technique that is usable with a well includes running a production string into the well so that the production string extends through a first isolated zone of the well and at least into a second...
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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 ends of...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 perforating body...
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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...
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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...
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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...
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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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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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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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...
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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...
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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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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...
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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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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...
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