Matches 1 - 50 out of 254 1 2 3 4 5 6 >


Match Document Document Title
US20120103612 System and Method for Opening a Window in a Casing String for Multilateral Wellbore Construction  
A system for opening a window in a casing string (42) positioned in a wellbore (32). The system includes a hydraulic pressure intensifier (116) having a housing and a piston assembly with a...
US20130299172 SHEAR SEAL BLOWOUT PREVENTER  
A shear/seal ram provides a knife edge at the shearing edge and the knife edge is inclined to minimize the cutting force required and to leave a clean cut edge. The knife edge is presented in an...
US20130319674 RIGLESS CASING CUTTING/PULLING STAND  
A tool for removing a portion of a casing from a wellbore. The tool includes a base having an opening or bore formed therethrough. A plurality of hydraulic cylinders may each have a first end...
US20150176385 Providing a Pressure Boost While Perforating to Initiate Fracking  
A one trip system for perforating and fracking multiple intervals uses a releasable barrier. The barrier can be an inflatable. A pressure booster system is associated with the BHA so that the...
US20120292027 Tubular Cutting with Debris Filtration  
A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while...
US20130098616 FLOW ISOLATION SUB FOR TUBING OPERATED DIFFERENTIAL PRESSURE FIRING HEAD  
An isolation sub for use in a perforating system that includes a pressure activated firing head. The isolation sub is set between the pressure source that is used to initiate the firing head. A...
US20140202692 METHOD FOR THE IN SITU RECOVERY OF HEAVY OIL FROM A SUBTERRANEAN DEPOSIT  
A method for extracting bitumen from a subterranean oil sand deposit including: drilling a portion of the deposit; fragmenting the drilled deposit; drilling of the fragmented deposit to allow for...
US20150218910 DOWNHOLE PERFORATOR GUN BYPASS TOOL  
The present invention is for a downhole tool having a perforator gun portion disposed within a housing of the downhole tool for perforating an oil and gas formation. The downhole tool also...
US20110011587 DEVICE FOR THE DYNAMIC UNDER BALANCE AND DYNAMIC OVER BALANCE PERFORATING IN A BOREHOLE  
According to a preferred embodiment, a dynamic underbalance device has a longitudinally extending tool string including an underbalance part. A first overbalance part is above the underbalance...
US20120325479 COILED TUBING BOTTOM HOLE ASSEMBLY WITH PACKER AND ANCHOR ASSEMBLY  
A bottom hole assembly (BHA), adapted to be positioned in a casing and to isolate a portion of a wellbore, which includes a packer assembly with a first sealing element extending between first and...
US20140290947 Radiused ID Baffle  
A method for servicing a subterranean formation comprising providing a wellbore penetrating the subterranean formation, and placing a wellbore servicing tool in the wellbore, wherein the wellbore...
US20110278007 TOOL AND METHOD FOR PROVIDING ACCESS TO A WELLHEAD ANNULUS  
A system and method for accessing an annulus within a wellhead assembly while the annulus is pressurized. The system includes a tubular body with an attached valve assembly and adapter. The...
US20120138301 Controllably Installed Multilateral Completions Assembly  
A multilateral completions assembly having selectively isolated lateral legs during hardware installation. The assembly includes a variety of isolation sleeves disposed interior of the main bore...
US20110024116 Electric and Ballistic Connection Through A Field Joint  
A perforating system having annular connectors for attachment between adjacent perforating guns and connectors. The connectors include male and female connectors with respective outer and inner...
US20150176386 Using a Combination of a Perforating Gun with an Inflatable to Complete Multiple Zones in a Single Trip  
A one trip system for perforating and fracking multiple intervals uses a releasable barrier. The barrier can be an inflatable. A pressure booster system is associated with the BHA so that the...
US20140182853 DOWNHOLE SLOT CUTTER  
Embodiments of the present disclosure are directed towards a downhole slot cutter. The downhole slot cutter a housing of the downhole slot cutter configured to be inserted into a tubular...
US20130008650 ELECTROMAGNETIC DEPTH/ORIENTATION DETECTION TOOL AND METHODS THEREOF  
Methods and systems for depth and radial orientation detection are provided. Methods for determining the depth or radial orientation of one or more downhole components include the steps of...
US20130008646 DEPTH/ORIENTATION DETECTION TOOL AND METHODS THEREOF  
Methods and systems for depth and radial orientation detection are provided. Methods for determining the depth or radial orientation of one or more downhole components include the steps of...
US20130008655 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating  
A method comprises providing a gun string assembly within a wellbore and perforating the wellbore using the gun string assembly. The gun string assembly comprises a plurality of perforating guns...
US20130233554 Full Flow Gun System for Monobore Completions  
A perforating gun assembly for a monobore application eliminates a full bore isolation valve or other component that has a limiting internal or external dimension and is designed to remain in...
US20150159468 COMPLETION, METHOD OF COMPLETING A WELL, AND A ONE TRIP COMPLETION ARRANGEMENT  
A method of completing a well includes, positioning at least one valve within a tubular, closing the at least one valve, pressuring up against the closed at least one valve in a first direction,...
US20140166284 COMPLETION SYSTEM FOR ACCOMODATING LARGER SCREEN ASSEMBLIES  
A completion system, including a tubular string initially having an substantially constant first dimension and configured to include at least one unexpanded portion having the first dimension and...
US20120118569 Oxygen Scavenger Compositions for Completion Brines  
An oxygen scavenger for completion brines effective and stable in high temperature subterranean formations. In one embodiment, the scavenger contains erythorbate and alkylhydroxlyamine.
US20150218918 PUNCHER TOOL  
A device and a method are for perforating downhole casings. The method includes arranging a device on a drill string, running the device into a bore hole, dropping a ball down through the drill...
US20150021029 Method and Apparatus for Casing Entry  
According to one aspect of the disclosure, an intercept well for penetrating an existing tubular is drilled. A casing entry tool is provided in the intercept well and operated to form at least one...
US20120199352 CONNECTION CARTRIDGE FOR DOWNHOLE STRING  
A cartridge assembly for use with a perforating system having a contact terminal that connects to a perforating signal line when inserted into a receptacle end of a perforating gun. A detonator...
US20130248184 Shock Load Mitigation in a Downhole Perforation Tool Assembly  
A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to...
US20120318508 Shock Load Mitigation in a Downhole Perforation Tool Assembly  
A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to...
US20120273201 Shock Load Mitigation in a Downhole Perforation Tool Assembly  
A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to...
US20130220613 Transient control of wellbore pressure  
A method and apparatus is described for modifying downhole wellbore pressure at the instant that an explosive event occurs. By a significant temporary reduction in wellbore pressure, for example,...
US20110209871 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating  
A downhole tool gun string assembly comprises a first perforating gun operable to generate a first pressure at a first location in a wellbore, wherein the first perforating gun comprises a first...
US20150226043 Limited Entry Phased Preforating Gun System and Method  
A limited entry perforating phased gun system and method for accurate perforation in a deviated/horizontal wellbore is disclosed. The system/method includes a gun string assembly (GSA) deployed in...
US20080314591 SINGLE TRIP WELL ABANDONMENT WITH DUAL PERMANENT PACKERS AND PERFORATING GUN  
A method of abandoning a well includes the steps of: assembling a tool string including a perforating gun interconnected between first and second packer assemblies; conveying the tool string into...
US20130161007 PULSE DETONATION TOOL, METHOD AND SYSTEM FOR FORMATION FRACTURING  
According to one aspect of the invention, a pulse detonation tool is provided for fracturing subterranean formations. The pulse detonation tool includes a pulse detonation combustor and creates an...
US20120292028 Tubular Cutting with a Sealed Annular Space and Fluid Flow for Cuttings Removal  
A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while...
US20130220604 Methods For Establishing A Subsurface Fracture Network  
A method of creating a network of fractures in a reservoir is provided. The method includes designing a desired fracture network system, and determining required in situ stresses to create the...
US20120298361 SELECT-FIRE STACKABLE GUN SYSTEM  
A system and method of perforating by stacking a perforating string within a wellbore, then deploying the perforating string to a designated depth for detonating shaped charges in the perforating...
US20120018156 GAS CUSHION NEAR OR AROUND PERFORATING GUN TO CONTROL WELLBORE PRESSURE TRANSIENTS  
A method for perforating a formation material proximate to a wellbore involving lowering a perforating gun string comprising a perforating gun and a gas-generating device downhole, providing...
US20120247771 PERFORATING GUN AND ARMING METHOD  
The perforating gun and methods of arming a perforating gun facilitates electrically connecting an arming device carrying the detonator to the loading tube carrying the explosive charges prior to...
US20130068461 SEALING BODY FOR WELL PERFORATION OPERATIONS  
A sealing body is provided for use in well operations such as oil/gas well perforation operations. The sealing body comprises a shell defining a closed cavity; the shell is comprised of a metal...
US20130140026 OIL WELL PLUG AND ABANDONMENT METHOD  
A method of severing a well string that extends into an oil well from an oil platform with a deck includes supporting upper and lower sections of the well string, the lower section supported at...
US20110132608 Device for the Focus and Control of Dynamic Underbalance or Dynamic Overbalance in a Wellbore  
A downhole tool assembly for use in a wellbore includes a tubular body carrying an explosive which is selectively detonated to create a dynamic underbalance or overbalance effect in the wellbore....
US20090084551 Reducing pipe expander  
A reducing pipe expander that applies to casing deformation restoration of deep wells such as oil field and comprises a conical-nosed enclosure, a mandrel and several steel balls. The main body of...
US20140209381 PRESSURE INDUCING CHARGE  
A charge assembly for incorporation into a downhole tool to induce pressure at an interior of the tool during a downhole application. The assembly includes a reactive powder metals that is...
US20150007993 PROTECTION OF CASING LOWSIDE WHILE MILLING CASING EXIT  
The lowside of a casing joint is protected from wear while milling a casing exit for a lateral borehole. The casing joint is coupled to a casing string and is made of a material that is softer...
US20060283596 Coiled tubing overbalance stimulation system  
Formation zones of interest may be isolated and stimulated by substantially instantaneously providing a pressure equal to or greater than the fracture pressure of the targeted zone. A treatment...
US20140262271 SHOCK ATTENUATOR FOR GUN SYSTEM  
A perforation gun string. The perforation gun string comprises a perforation gun that forms at least part of the perforation gun string; and a swellable material coupled to the perforation gun...
US20130032347 Method for Generating Discrete Fracture Initiation Sites and Propagating Dominant Planar Fractures Therefrom  
A method for performing a downhole perforating and fracturing operation from a wellbore (12) positioned within a subterranean formation (18). The method includes locating a perforating gun string...
US20140034315 Radial Conduit Cutting System and Method  
What is presented is a metal magnalium thermite pellet that is used to create heated gas. The metal magnalium thermite pellet is made to be inserted into the cutting apparatus that is used for...
US20120152542 WELL PERFORATING WITH DETERMINATION OF WELL CHARACTERISTICS  
A formation testing method can include interconnecting multiple pressure sensors and multiple perforating guns in a perforating string, the pressure sensors being longitudinally spaced apart along...

Matches 1 - 50 out of 254 1 2 3 4 5 6 >