Matches 101 - 150 out of 396 < 1 2 3 4 5 6 7 8 >


Match Document Document Title
8033332 Apparatus and method for perforating and fracturing a subterranean formation  
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator...
7992645 Cut release sub and method  
A tubular member for lining a wellbore, the tubular member comprising: an inner tubular member including a first end, an opposite end, an axial bore extending from the first end to the opposite...
7971645 Four mill bottom hole assembly  
Bottom hole assemblies for cutting windows in wellbore casing comprise a window mill, a first upper mill, a second upper mill, and a third upper mill. The first mill has an outer diameter that is...
7963332 Apparatus and method for abrasive jet perforating  
A abrasive jet perforating tool comprises a generally cylindrically shaped tube with a side, an upper portion, and a lower portion; a plurality of holes tapped and threaded into the side of the...
7963331 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool  
An embodiment of a well bore servicing apparatus includes a housing having a through bore and at least one high pressure fluid aperture in the housing, the fluid aperture being in fluid...
7963342 Downhole isolation valve and methods for use  
A method and apparatus for actuating a downhole tool in a wellbore. The method and apparatus including an actuator that operates the tool in response to the functioning of an energetic charge. The...
7950457 Method and apparatus for stimulating wells with propellants  
The present invention relates to apparatus and methods to stimulate subterranean production and injection wells, such as oil and gas wells, utilizing rocket propellants. Rapid production of...
7950456 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...
7946793 Apparatus for drilling colinear holes through concentric pipes  
Apparatus for drilling holes through concentric pipes is provided. The apparatus clamps on the exterior pipe and contains drilling assemblies that may be used for drilling sequentially or...
7926570 Method and apparatus for preventing spillage or loss of drill fluids  
A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for...
7921924 System and method for controlling actuation of a well component  
A technique is provided for controlling actuation of a well component. A resistance device is deployed in a tool string and connected to a well tool to be actuated. The resistance device comprises...
7918280 Radial indexing communication tool and method for subsurface safety valve with communication component  
A communication tool apparatus is described which is adapted to provide selective communication of control fluid through a downhole tool, such as a safety valve. The downhole safety valve is a...
7913753 System for injecting a substance into an annular space  
A system for injecting a substance into the annular space surrounding a well tubular with an assembly to be inserted into a well tubular. The assembly includes a cutting part capable of making a...
7909100 Reversible casing cutter  
Casing cutter for severing multiple tubulars in a well bore has a pair of cutter blades pivotally mounted on a support body. The blades are pivotally mounted for gradual movement outside of the...
7909118 Apparatus and method for positioning extended lateral channel well stimulation equipment  
A movable boring assembly and a boring tool positioner for drilling a plurality of holes in a well casing and jetting a well production zone through the plurality of holes. All of the holes can be...
7905286 Method and apparatus for sealing a hole made with a cased hole formation tester  
Apparatus and methods for forming and sealing a hole in the sidewall of a borehole are provided. The method may include conveying a carrier into the borehole, forming the hole in the sidewall...
7900704 Perforating torch apparatus and method  
A method of perforating a downhole pipe by cutting at a location within the pipe in a radial direction toward the pipe, producing a determined reaction force, and using the determined reaction...
7900703 Method of drilling out a reaming tool  
A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose portion and taper...
7878247 Methods for cleaning out horizontal wellbores using coiled tubing  
Methods for cleaning out horizontal wellbores using coiled tubing are provided for use during downhole operations. A coiled tubing having a bottom hole assembly is deployed into a horizontal...
7849924 Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool  
A well bore servicing apparatus comprising a housing having a longitudinal axis and a through bore, and a movable member disposed in said housing, said movable member having a through bore and a...
7832481 Fluid perforating/cutting nozzle  
The fluid perforating/cutting nozzle is configured to provide long life to the nozzle. The nozzle is composed of a cylindrical shaft defining a bore for the passage of cutting fluid and having...
7832480 Apparatus and method for extracting a tubular string from a bore hole  
A tubular extraction system for use in a plug and abandonment process and may include a structural mounting for adaptation to a well head, various mountings may be used to provide a structure for...
7814979 Blowout preventers and methods of use  
Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade...
7810553 Coiled tubing wireline cutter  
A wireline cutter comprises a primary housing with a first axial bore configured to receive a wireline positioned within a well bore, and a first blade mounted within the primary housing and...
7810568 Method of making a window in a tubular using an expandable watermelon mill  
A watermelon mill has a smaller dimension for run in and a larger one for reaming out the window made by a window mill and passes through a smaller drift and then gets larger for more effective...
7810569 Method and apparatus for subterranean fracturing  
A subterranean formation stimulation system, comprising a gas generator, a high pressure seal, and a fluid injection system. The high pressure seal may be a packer and or plug having an outer...
7793721 Apparatus for radially expanding and plastically deforming a tubular member  
An apparatus and method for radially expanding and plastically deforming a tubular member. The apparatus includes a support member, an expansion device coupled to the support member and at least...
7766083 Methods of isolating hydrajet stimulated zones  
The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean...
7762330 Methods of making multiple casing cuts  
Methods of removing casing from a wellbore, the method including disposing a drilling tool assembly in a wellbore, the drilling tool assembly including a cutting device, a spearing device, and a...
7726401 Casing exit joint with easily milled, low density barrier  
A casing exit joint with an easily milled and low density barrier. A casing exit joint for use in drilling a lateral wellbore outwardly from a parent wellbore includes a generally tubular window...
7712532 Energized fluids and pressure manipulation for subsurface applications  
Method and system for use in a subsurface formation traversed by a wellbore. An energized fluid, which when subjected to a low pressure environment liberates or releases gas from solution, is...
7703524 Cutting windows for lateral wellbore drilling  
A system and method for cutting windows for lateral wellbore drilling. A method of cutting a window through a sidewall structure for drilling a lateral wellbore through the window includes the...
7703526 Apparatus and method for characterizing a reservoir  
An apparatus and method for characterizing a subsurface formation is provided. The apparatus includes a tool body, a probe assembly carried by the tool body for sealing off a region of the...
7699107 Mechanical and fluid jet drilling method and apparatus  
A device useful for conducting lateral or transverse excavating operations within a wellbore comprising a rotating drill bit with jet nozzles on a flexible arm. The arm can retract within the...
7694740 Communication tool and method for a subsurface safety valve with communication component  
A communication tool apparatus is described which is adapted to provide selective communication of control fluid through a downhole device such as a safety valve. The downhole safety valve is a...
7690428 Perforating torch apparatus and method  
In cutting a downhole pipe in proximity to a closure in the pipe, the pipe is first perforated. A perforating torch is positioned with a pipe in proximity to the closure. The perforating torch...
7690443 Apparatus, system, and method for casing hole formation in radial drilling operations  
The present application is directed to an apparatus for forming one or more holes in a wellbore casing, the apparatus comprising a deflector assembly and a drive assembly to drive said deflector...
7686083 Method and apparatus for cutting off a well  
A method and apparatus for cutting off a well which includes hydraulic rams, a sharp blade and a supporting structure that surrounds the well and holds it in place while the hydraulic rams and...
7644763 Downhole cutting tool and method  
Disclosed herein is a downhole cutting tool. The downhole cutting tool including, a cutting member mounted on a rotatable shaft, a shaft-deflecting device in operable communication with the shaft,...
RE41059 Expandable wellbore junction  
Multiple wellbores are interconnected utilizing a deflection device having a guide layer of lower hardness than the body of the deflection device, and a cutting tool having a guide portion and...
7628205 Optimized machining process for cutting tubulars downhole  
The tubular cutter disclosed herein is useful for severing downhole tubulars and comprises a drive system, a pivoting system, a cutting head, and a cutting member. Cutting is accomplished by...
7621321 Method and apparatus for removing casing  
A method and apparatus for removing a string of casing from a well bore. The method and apparatus include a plurality of drill bits substantially aligned with each other for drilling a plurality...
7621332 Apparatus and method for perforating and fracturing a subterranean formation  
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator...
7621331 Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway  
A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel....
7617872 System and method for perforated well sand control  
In one embodiment, a system includes a cased wellbore disposed in a formation of interest. The system includes an emulsion positioned in the wellbore at a depth of the formation of interest. The...
7617871 Hydrajet bottomhole completion tool and process  
Of the many assemblies and methods provided herein, one assembly includes a conduit adapted for installation in a well bore in a subterranean formation; one or more fluid jet forming nozzles...
7600562 Non-explosive tubing perforator and method of perforating  
An improved perforating apparatus that creates drain holes in well tubing without the use of explosives. A hydraulically-activated apparatus created from machined metal pipes and solid metal bars...
7581591 Production casing ripper  
A production casing ripper comprising a swedge; spring housing; coupling; main housing; end piece; blade; and means for connecting the blade to the plunger; wherein the blade is situated inside of...
7574807 Internal pipe cutter  
A pipe cutter is designed for cutting a pipe from the inside by insertion of the pipe cutter through an open end of the pipe. The pipe cutter includes an elongated hollow sleeve with first and...
7571766 Methods of fracturing a subterranean formation using a jetting tool and a viscoelastic surfactant fluid to minimize formation damage  
A method of fracturing a production interval of a subterranean formation adjacent a wellbore that is open hole or has an uncemented liner is provided. The method comprises the steps of: (a)...

Matches 101 - 150 out of 396 < 1 2 3 4 5 6 7 8 >