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7353871 Downhole automatic tool release and method of use  
A release tool adapted to be connected between a perforating gun and a tubing for releasing the perforating gun from the tubing after detonation of the perforating gun, the tool including a...
7353866 Stimulation tool having a sealed ignition system  
An apparatus for stimulating a subterranean formation includes a first tube, a second tube, a combustion body and an ignition propagator. The second tube is positioned within the first tube...
7347272 Formation isolation valve  
The present invention provides for high volume flow from a well. A retrievable formation isolation valve allows high volume flow through the remaining casing or tubing. Alternatively, a large bore...
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...
7343975 Method for stimulating a well  
A bottomhole assembly (BHA) and method for stimulating a well includes setting a packer of the BHA in a wellbore. The BHA includes the packer and a jetting tool coupled to a tubing string. Process...
7325612 One-trip cut-to-release apparatus and method  
Apparatuses and methods allow a downhole anchor device to be cut, released, and retrieved using a single one-trip cutter and removal assembly. The assembly preferably includes a cutter head...
7318475 Matrix acidizing high permeability contrast formations  
A method for stimulating thick or multilayered heterogeneous or homogeneous formations in a single trip without packers involves perforating with tubing conveyed perforation, then injecting a...
7303016 Casing with isolated annular space  
The invention is comprised of (see FIG. 1) an inner pipe (2), and an outer pipe (3), and two end subs (1). An isolated circular hollowed space is contained in between these components. The...
7303017 Perforating gun assembly and method for creating perforation cavities  
A perforating gun assembly (60) for creating communication paths for fluid between a formation (64) and a cased wellbore (66) includes a housing (84), a detonator (86) positioned within the...
7284612 Controlling transient pressure conditions in a wellbore  
A method and apparatus for use in a wellbore includes running a tool string to an interval of the wellbore, and activating a first component in the tool string to create a transient underbalance...
7284613 Method and apparatus for assembling stackable gun system inside a well bore  
A method for assembling a stackable perforating gun system inside a well bore is provided that includes attaching a first gun section of the stackable perforating gun system to a tracking...
7278482 Anchor and method of using same  
An anchoring tool to position an attached tool, such as a chemical cutter or other tools, in a predetermined position within the bore of a tubular. After the desired location for cutting the...
7278486 Fracturing method providing simultaneous flow back  
A bottom-up method of fracturing a multi-zone subterranean formation intersected by a wellbore that enables one zone to be fractured while at the same time flowing previously placed fracture fluid...
7275597 Remote power management method and system in a downhole network  
A method for remotely managing downhole power consumption in a downhole network system is disclosed. The method comprises the steps of monitoring an activation state for each of a plurality of...
7273102 Remotely actuating a casing conveyed tool  
A technique that is usable with a subterranean well includes communicating a wireless stimulus downhole in the well and actuating a casing conveyed tool in response to the communication.
7267175 Apparatus and methods for forming a lateral wellbore  
A method and system of forming a lateral wellbore in a time and trip saving manner using a mill/drill to locate and place a casing window. In one aspect of the invention, a lateral wellbore is...
7261159 Perforating method  
A method for perforating a wellbore comprises placing a perforating device in a cased wellbore that passes through a subterranean formation. The perforating device comprises at least one explosive...
7255171 Method and apparatus for manufacturing an expandable slotted tube  
A method of manufacturing an expandable slotted tube fabricated from at least one tubular element and at least two annular elements connected to the opposite ends of the tubular element by means...
7246659 Damping fluid pressure waves in a subterranean well  
A system and method of damping fluid pressure waves in a subterranean well. In a described embodiment, pressure waves are damped by positioning a dampener in the well during a perforating...
7240733 Pressure-actuated perforation with automatic fluid circulation for immediate production and removal of debris  
Openings are created between a wellbore and a formation by firing a perforating gun adjacent to a zone in the formation and the production fluids are produced along with any formation debris. A...
7231978 Chemical injection well completion apparatus and method  
An apparatus to be disposed within a wellbore includes a production tubing in communication with a pump string and a bypass string at its distal end, wherein the pump string is configured to pump...
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,...
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...
7213648 Pressure-actuated perforation with continuous removal of debris  
Openings are created between a wellbore and a formation by firing a perforating gun adjacent a perforating zone in the formation and debris is removed. A tubing string extending to the formation...
7195069 Method and apparatus for backing off a tubular member from a wellbore  
A back-off tool for use in a tubular member disposed inside a wellbore. The back-off tool includes a housing and at least one sonic wave generator mounted within the housing. The sonic wave...
7185701 Apparatus and method for radially expanding a tubular member  
Apparatus and methods for radially expanding a tubular such as a drill pipe, liner, casing or the like. The apparatus includes at least one driver device such as a piston that is typically...
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...
7165611 Single trip perforation/packing method  
A method for performing single trip perforation and packing operations via a downhole assembly in a cased well bore is described. The assembly is provided with an upper packer and a lower packer...
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...
7152679 Downhole tool for deforming an object  
A downhole tool comprises a body defining a fluid chamber, a fluid outlet for directing fluid outwardly of the chamber, and an arrangement for producing a rapid reduction in the volume of the...
7140434 Sensor system  
A sensor for installation in an underground well having a casing or tubing installed therein, the sensor comprising: a sensor body that can be installed in a hole formed in the casing or tubing so...
7128157 Method and apparatus for treating a well  
The present invention generally relates to a method and an apparatus for stimulating the production of an existing well. In one aspect, a method of treating a well is provided. The method includes...
7128155 Cutting tool and method of cutting an object in a well  
A cutting device cuts one or more downhole control lines such that the cut ends of the one or more control lines will not interfere with subsequent fishing operations. The cutting device comprises...
7124822 Foamed completion fluids and methods  
Foamed completion fluids and methods of completing subterranean zones penetrated by well bores are disclosed. A method of completing a subterranean zone penetrated by a well bore comprises the...
7121340 Method and apparatus for reducing pressure in a perforating gun  
An apparatus for reducing the post-detonation pressure of a perforating gun, the apparatus including a perforating gun carrying at least one explosive charge, wherein when the explosive 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...
7096949 Wiper plug with packer  
A self-retaining cementing wiper plug with a packer element has two or more steel or carbide tipped holddown fingers or slips extending radially outward from the plug for engaging the inner...
7093656 Solid expandable hanger with compliant slip system  
An apparatus for forming an expanded connection in a wellbore, whereby the apparatus includes a first tubular being radially expandable outward into contact with an inner wall of a second tubular...
7090006 Replaceable liner for metal lined composite risers in offshore applications  
A method of re-manufacturing a composite riser section having a damaged original metal liner comprises inserting an expandable replacement liner into the bore of the composite riser section and...
7077206 Method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores  
A section mill is positioned below an exit guide in a drill string assembly used to mill a section of steel casing below the whipstock and which as the section mill moves down and mills along the...
7066265 System and method of production enhancement and completion of a well  
A method of treating and completing a well includes positioning a downhole tool within a well. The downhole tool includes an elongated body defining a central passageway and including a plurality...
7059407 Method and apparatus for stimulation of multiple formation intervals  
The invention discloses methods of, as well as apparatus and systems for, perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore by deploying...
7059406 Production-enhancing completion methods  
The present invention relates to improved methods for completing well bores along producing zones while controlling formation sands and increasing surface area available for production. Some...
7044219 Shock absorber  
A shock absorbing tool for use in pipelines and oil wells, particularly in combination with perforation guns comprises a central mass supported on two springs between the end terminal members. The...
7044236 Shot direction indicating device  
One embodiment of the present invention discloses a shot indication device that indicates the orientation of a downhole tool that is inside of a wellbore at a particular time. The shot indication...
7044230 Method for removing a tool from a well  
A method of treating a subterranean formation penetrated by a wellbore, according to which a tool is fabricated of a material that breaks up or dissolves in the presence of a fluid and is inserted...
7036594 Controlling a pressure transient in a well  
A system for controlling a dynamic pressure transient in a well during operations to provide fluid communication between the wellbore and adjacent formation. A method includes determining the...
7032671 Method for increasing fracture penetration into target formation  
A method of propagating a fracture farther from a well-bore into an oil and/or gas-bearing zone of a target formation while inhibiting growth of the fracture into an adjacent water-bearing zone...
7017665 Strengthening near well bore subterranean formations  
The present invention relates to improved methods for completing well bores along producing zones and, more particularly, to methods for strengthening near well bore subterranean formations. Some...