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| Number | Title | Issue Date |
| 8149132 | System and method for hard line communication with MWD/LWD A MWD/LWD hard line communication system and method includes for the system a cartridge capable of deploying wire in a borehole, a screen attachable to the cartridge and positionally retainable in the borehole, and a communications connector operably associable with... | 04/03/2012 |
| 7619541 | Remote sensor processing system and method A sensor assembly includes a sensor operable to sense a physical parameter and generate an electrical signal responsive to the sensed physical parameter. Local processing circuitry is physically positioned proximate the sensor and is electrically coupled to the sens... | 11/17/2009 |
| 7443312 | Downhole telemetry system having discrete multi-tone modulation with QAM fallback Improved communication systems and methods are disclosed. In one embodiment, a downhole communications system comprises a downhole transceiver and a surface transceiver. The surface transceiver receives a discrete multi-tone (DMT) modulated uplink signal from the do... | 10/28/2008 |
| 7382273 | Wired tool string component An apparatus is disclosed as having a downhole string component having first and second ends. The first end has first and second signal couplers, and the second end has third and fourth signal couplers. An electrical conductor is in electrical communication with the... | 06/03/2008 |
| 7367392 | Wellbore apparatus with sliding shields Wellbore apparatus including an elongated tubular adapted for disposal within the wellbore. The tubular having an elongated recess formed on its exterior surface along the longitudinal axis. The recess is adapted to accept and house a component therein. A shield dis... | 05/06/2008 |
| 7362235 | Impedance-matched drilling telemetry system A downhole telemetry system that uses inductance or capacitance as a mode through which signal is communicated across joints between assembled lengths of pipe wherein efficiency of signal propagation through a drill string, for example, over multiple successive pipe... | 04/22/2008 |
| 7350589 | Telemetering system A pipe installation system has a pipe composed of sections that are added and removed to increase and decrease a length of the pipe. The system further has a cable storage spool for stowing a length of cable in a compact manner inside the pipe and for paying out the... | 04/01/2008 |
| 7335836 | Power supply wire, wire grip, electric appliance suspending device, and electric appliance suspending method The electrical apparatus suspension unit 1 is provided with two power supply wires 20-1 and 20-2 by which the electrical apparatus 3 is conducted and suspended from the ceiling 5. Each of the wires 20 is connec... | 02/26/2008 |
| 7319410 | Downhole transmission system A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. An electrical conductor connects both the tra... | 01/15/2008 |
| 7309835 | Adjustable speed drive/variable frequency drive cable, connector and termination system A cable and termination system for use with adjustable speed drives, including flexible tray cables and metal-clad cables, and terminations coupled therewith. The cables generally include three phase conductors, three ground conductors and fillers, and are wrapped w... | 12/18/2007 |
| 7299867 | Hanger mounted in the bore of a tubular component A hanger mounted within a bore of a tubular string component has a split ring, a tapered key and a passageway formed in the hanger. The split ring has interfacial surfaces cooperating with interfacial surfaces of the tapered key. The bore may be located within a tub... | 11/27/2007 |
| 7294787 | Enhanced armor wires for wellbore cables Cables used with wellbore devices to analyze geologic formations adjacent a wellbore are disclosed. The cables include one or more armor wires formed of a high strength core surrounded by a corrosion resistant alloy clad. The cables may be employed as a slickline or... | 11/13/2007 |
| 7288721 | Electrical cables Disclosed are durable corrosion resistant wellbore electrical cables including a coated electrical conductor, a polymeric protective layer for trapping coating flakes, a first insulating jacket disposed adjacent to the polymeric protective layer and having a first r... | 10/30/2007 |
| 7259689 | Transmitting power and telemetry signals on a wireline cable A wireline logging assembly includes a cable having primary conductors, secondary conductors, and a central conductor. A first power source excites the primary conductors using a first propagation mode. A first telemetry transceiver excites the primary conductors us... | 08/21/2007 |
| 7248177 | Down hole transmission system A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. The electrically conducting coil comprises at... | 07/24/2007 |
| 7201240 | Biased insert for installing data transmission components in downhole drilling pipe An apparatus for installing data transmission hardware in downhole tools includes an insert insertable into the box end or pin end of drill tool, such as a section of drill pipe. The insert typically includes a mount portion and a slide portion. A data transmission ... | 04/10/2007 |
| 7190280 | Method and apparatus for transmitting and receiving data to and from a downhole tool A transmission line network system for transmitting and/or receiving data from a downhole tool. The invention is achieved by providing one or more transceiving elements, preferably rings, at either end of a downhole tool. A conduit containing a coaxial cable capable... | 03/13/2007 |
| 7168510 | Electrical transmission apparatus through rotating tubular members The present invention provides an apparatus for the communication of power or data signals across the rotating gap of two tubular members, such as the stator and rotor of a mud motor, and between said rotating members of a drill string through inductive couplers loc... | 01/30/2007 |
| 7158703 | Power umbilical for deep water A subsea umbilical includes electrically insulated power conductors, fiber optic elements, electrical signal cables, and fillers within a common outer cover. At least one of the electrical signal cables is enclosed within a dedicated metal tube, and the umbilical is... | 01/02/2007 |
| 7158048 | Identically programmed intelligent electrodes for use in geoelectrical surveys Apparatus for conducting geophysical surveys comprising a multiplicity of intelligent electrodes provided on a multi-conductor cable, for receiving a command signal in response to which predetermined electrodes are connected to selected conductors in the cable. Each... | 01/02/2007 |
| 7119283 | Enhanced armor wires for electrical cables Electric cables used with wellbore devices to analyze geologic formations adjacent a wellbore including at least one insulated conductor, and one or more armor wires surrounding the insulated conductor, the armor wires formed of a high strength core surrounded by a ... | 10/10/2006 |
| 7119711 | Communicating with an underground object A data sonde for use in horizontal drilling is provided, the data sonde comprising an antenna for emitting a first modulated signal from the data sonde, the first signal comprising zero and non-zero emission components in different periods, and a receiver for receiv... | 10/10/2006 |
| 7114970 | Electrical conducting system A generally tubular drill string has a conductive path over a plurality of drill pipe section (10). Each drill pipe section has a first end and a second end, and a wall, and the first end has a first radial sealing surfaces (11) and the second end has ... | 10/03/2006 |
| 7098802 | Signal connection for a downhole tool string A signal transmission connection for a tool string used in exploration and production of natural resources, namely: oil, gas, and geothermal energy resources. The connection comprises first and second annular elements deployed in cooperative association with each ot... | 08/29/2006 |
| 7084782 | Drill string telemetry system and method A telemetry system and method for communicating information axially along a drill string comprised of a drive train supported within a housing. The system includes an axial conducting loop formed by the drill string for conducting an axial electrical signal embodyin... | 08/01/2006 |
| 7080998 | Internal coaxial cable seal system The invention is a seal system for a coaxial cable and is placed within the coaxial cable and its constituent components. A series of seal stacks including load ring components and elastomeric rings are placed on load bearing members within the coaxial cable sealing... | 07/25/2006 |
| 7040909 | Dry mate connector A dry mate connector has first and second connector modules, and a coupling member or slidable retention sleeve mounted on the first module. Resilient latch formations are provided for releasably securing the modules together in a mated position. The modules each ha... | 05/09/2006 |
| 7009113 | High temperature electrical cable having interstitial filler A cable includes a central insulated conductor with a plurality of outer insulated conductors disposed around the central conductor. Interstices formed between the central conductor and outer conductors are at least partially filled with a filler material. Filler ma... | 03/07/2006 |
| 7002445 | Loaded transducer for downhole drilling components A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintai... | 02/21/2006 |
| 6960724 | Dual stress member conductive cable A dual stress member electrical cable includes an electrically conductive, load-bearing core, an insulating layer surrounding the core, and an electrically conductive, outer load-bearing member surrounding the insulating layer. The core may be formed of a solid wire... | 11/01/2005 |
| 6950034 | Method and apparatus for performing diagnostics on a downhole communication system A method for performing diagnostics on a wired drill pipe telemetry system of a downhole drilling system is provided. The method includes passing a signal through a plurality of drill pipe in the wired drill pipe (WDP) telemetry system, receiving the signal from the... | 09/27/2005 |
| 6913083 | Method and apparatus to monitor, control and log subsea oil and gas wells A method and apparatus for logging, controlling, or monitoring a subsea well or group of wells through a path not within production tubing. Preferred embodiments allow logging tools, wire rope, optic fibers, electrical cables, monitoring and measuring instruments an... | 07/05/2005 |
| 6843119 | Apparatus for measuring and recording data from boreholes For collecting data from a water well, down-hole sensors are housed in modules. The modules are arranged to be screwed together in-line to form a vertical string. Mechanically, the modules are secured to each other only by the screw connection. Data is transmitted t... | 01/18/2005 |
| 6727828 | Pressurized system for protecting signal transfer capability at a subsurface location A system for protecting the transmission of signals from and/or to a tool in a high pressure environment. The system includes a tool connected to a signal transmission line, such as an electrical cable or optical fiber. The signal transmission line is surrounded by ... | 04/27/2004 |
| 6628206 | Method and system for the transmission of informations by electromagnetic wave A method and a system for the transmission of information from a well (1; 20) drilled through geological formation layers (3) at least partly cased by metal tubes (4; 23; 24; 31). The method includes the placing in said well of an information transceiver ... | 09/30/2003 |
| 6587054 | Electrical submersible pump cable An electrical submersible pump cable having an integral capacitor. The electrical submersible pump cable has a primary conductor with an insulator surrounding the primary conductor. A coaxial conductive layer surrounds the insulator, wherein the insulator... | 07/01/2003 |
| 6459383 | Downhole inductively coupled digital electronic system A communication system between remote locations connected by a common wire conductor where AC power (40) is supplied from one location to one or more remote locations (32 and 34). At the remote locations, inductor coil components (28,32) and (30,34) provi... | 10/01/2002 |
| 6396414 | Retractable electrical/optical connector A down-hole tool includes a first and second portion that are moveable relative to one another, but are electrically coupled together. A rigid tube formed into a helical coil extends between the first and second portions. The helical coil is expandable an... | 05/28/2002 |
| 6392561 | Short hop telemetry system and method The invention relates to a data transmission or telemetry system and a method for communicating information axially along a drill string. The method includes the step of conducting an axial electrical signal embodying the information between a first axial... | 05/21/2002 |
| 6360820 | Method and apparatus for communicating with downhole devices in a wellbore A system for use in a well such as an intelligent completion system, includes an electrical cable and a plurality of communication modules positioned in the well. At least a first one of the communication modules is connected to the electrical cable. At l... | 03/26/2002 |
