Match Document Document Title
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...
8136608 Mitigating perforating gun shock  
A wellbore tool string includes a perforating gun having a plurality of explosive perforating charges and a shock mitigation tool. The shock mitigation tool including a tubular body having a top...
8136584 Single trip tubing punch and setting tool  
A tubing punch and setting tool (TPST), operating on a single run for improved well bore intervention. The tool includes a setting tool for connecting to and setting a reference tool in a tubing...
8127846 Wiper plug perforating system  
A method and system for cementing and perforating a wellbore in a single step by coupling a perforating gun with a wiper plug. The method includes injecting cement in a wellbore having casing...
8127832 Well stimulation using reaction agents outside the casing  
Methods and apparatus for stimulating oil or gas wells using material cemented outside the casing. Reaction agents, usually comprising oxygen-rich material and a coil of high order explosive, are...
8127848 Selectively angled perforating  
A method of perforating a wellbore by forming a perforation that is aligned with a reservoir characteristic, such as direction of maximum stress, lines of constant formation properties, and the...
8130118 Wired tool string component  
A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second...
8101874 Watertight junction box  
A watertight junction box includes a box body, a lower floating plate, an upper floating plate, a lock cap, a modular cable inserted into the box body and kept in contact with sharp copper...
8066083 System and method for dynamically adjusting the center of gravity of a perforating apparatus  
A perforating apparatus (190) used to perforate a subterranean well. The perforating apparatus (190) includes a generally tubular gun carrier (106) and a charge holder (192) rotatably mounted...
8066072 Method of stimulating a well  
A tubular introduced into a wellbore is perforated at pre-selected locations after the tubular has been cemented into place. The locations of the perforations are determined by modeling inflow...
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...
8061431 Method of operating a pressure cycle operated perforating firing head and generating electricity in a subterranean well  
Pressure cycle operated apparatus and methods. A method of actuating a firing head includes the steps of: reciprocably displacing an actuator piston of the firing head, the displacing step...
8056632 Downhole initiator for an explosive end device  
A perforating gun that is usable with a well includes at least one perforating charge and a initiator. The initiator includes an explosive ballistic train to the perforating charge(s). The...
8042613 Drilling head for reboring a stuck valve  
A drilling head, method of drilling, and use of the drilling head, for reboring a stuck valve or drilling into the formation downhole and, in particular a drilling tool having a drilling head and...
8037934 Downhole tool delivery system  
An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics...
8020619 Severing of downhole tubing with associated cable  
Methods for severing tubing having a cable extending along its length include lowering a first cutting torch into the tubing to a desired location, igniting the first cutting torch, and directing...
8020620 Methods of producing flow-through passages in casing, and methods of using such casing  
Methods of making and using wellbore casing are described, one method comprising providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole;...
8015921 Electronic blasting capsule  
An electronic blasting capsule which includes a housing which contains a propellant, a fuse, a sensor for detecting the position of the housing in a capsule delivery path, an energy arrangement...
8006762 System and method of controlling surge during wellbore completion  
A downhole oilfield completion method comprises determining a surge profile for a wellbore and assembling a downhole completion tool having an interior surge volume and comprising a surge...
8002035 System and method for dynamically adjusting the center of gravity of a perforating apparatus  
A perforating apparatus (170) used to perforate a subterranean well. The perforating apparatus (170) includes a generally tubular gun carrier (106) and a charge holder (172) rotatably mounted...
7997332 Method and apparatus to remove a downhole drill collar from a well bore  
A method of severing a drill string or other tubular string that includes lowering a torch into the drill string, positioning the torch at a joint in the drill string, such that the joint may have...
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...
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...
7984761 Openhole perforating  
An underbalanced perforating system is disclosed for use in openhole completions to maximize the wellbore and matrix cleanup efficiency, to connect natural fracture patterns, and/or to enable...
7980309 Method for selective activation of downhole devices in a tool string  
A system (100) for selective activation of explosive devices (126, 128, 130, 132) includes a surface controller (102), a downhole controller (106) operable to communicate bidirectionally with the...
7980308 Perforating gun assembly and method for controlling wellbore fluid dynamics  
A downhole tool used in the pressure isolation of adjacent subterranean formations. The downhole tool may comprise flow restriction devices along the outer circumference for impeding flow along...
7946344 Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers  
An assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers comprises a series of expandable packers and integrated perforating gun and...
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...
7926566 Method of making a downhole cutting tool, using a single piece tubular with a radially displaceable portion  
Disclosed herein relates to a single piece tubular member. The tubular member having a non-radially displaceable portion and a radially displaceable portion, the radially displaceable portion...
7918279 System and method for forming cavities in a well  
A technique of forming perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired...
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...
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...
7909099 Well productivity enhancement methods  
The invention relates to oil production stimulation methods and can be used for both reservoirs with fractures resulting from the fracturing procedure and reservoirs with naturally occurring...
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...
7905285 Method and apparatus for perforating a casing and producing hydrocarbons  
A perforating gun and one or more volume-receiving surge canisters can be actuated at a time delay after perforation for creating a dynamic underbalance condition to aid in directing debris out of...
7896077 Providing dynamic transient pressure conditions to improve perforation characteristics  
A transient overbalance condition is created in a wellbore interval such that a pressure of the wellbore interval is greater than a reservoir pressure in surrounding formation. Creating the...
7878246 Methods of perforation using viscoelastic surfactant fluids and associated compositions  
The invention provides a method for perforating a well with a perforating fluid comprising a viscoelastic surfactant that essentially stops fluid leak-off after perforation in an overbalanced...
7878242 Interface for deploying wireline tools with non-electric string  
Embodiments of the present invention generally relate to a method and/or apparatus for deploying wireline tools with a non-electric string. In one embodiment, a method of determining a free point...
7874365 Methods and devices for treating multiple-interval well bores  
Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected...
7870894 Downhole cutting tool, using a single piece tubular with a radially displaceable portion  
Disclosed herein relates to a single piece tubular member. The tubular member having a non-radially displaceable portion and a radially displaceable portion, the radially displaceable portion...
7861783 Method for adapting a tubular element in a subsiding wellbore  
A method for adapting a tubular element extending into a wellbore formed in an earth formation, where the tubular element is susceptible to damage caused by axially compressive forces acting on...
7861784 System and method of controlling surge during wellbore completion  
A downhole oilfield completion method comprises determining a surge profile for a wellbore and assembling a downhole completion tool having an interior surge volume and comprising a surge...
7849919 Methods and systems for generating and using plasma conduits  
Systems are disclosed for providing a plasma conduit maintaining ionized particles within a perforation hole in a body, and a power source configured to provide electrical power through the plasma...
7845410 Openhole perforating  
An underbalanced perforating system is disclosed for use in openhole completions to maximize the wellbore and matrix cleanup efficiency, to connect natural fracture patterns, and/or to enable...
7832477 Casing deformation and control for inclusion propagation  
Casing deformation and control for inclusion propagation in earth formations. A method of forming at least one inclusion in a subterranean formation includes the steps of: installing a liner...
7814970 Downhole tool delivery system  
A downhole tool deployment apparatus is disclosed, which preferably includes at least an in-ground well casing, a depth determination device providing a hermetically sealed electronics...
7814978 Casing expansion and formation compression for permeability plane orientation  
Casing expansion and formation compression for permeability plane orientation. A method of forming at least one increased permeability plane in a subterranean formation includes the steps of:...
7798227 Methods for placing multiple stage fractures in wellbores  
A production tubing comprising a liner is placed downhole in a wellbore. A fluid pill containing proppant is squeezed into the annulus between the formation and liner, thereby packing the proppant...
7789153 Methods and apparatuses for electronic time delay and systems including same  
Electronic time delay apparatuses and methods of use are disclosed. An explosive or propellant system, which may be configured as a well perforating system includes an electronic time delay...
7779926 Wellbore plug adapter kit and method of using thereof  
Embodiments of the present invention generally relate to an adapter kit for use between a setting tool and a wellbore plug. In one embodiment, a method for setting a plug in a cased wellbore is...