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| Number | Title | Issue Date |
| 7808399 | Electronic device enabling hardware and methods The teachings described herein are generally concerned with systems and methods for selectively enabling an electronic device, such as an optical transceiver, that is configured to communicate with a remote computer. In one example of such a method, identification d... | 10/05/2010 |
| 7696901 | Methods and apparatus for photonic power conversion downhole Subterranean oilfield sensor systems and methods are provided. The subterranean oilfield sensor systems and methods facilitate downhole monitoring and high data transmission rates with power provided to at least one downhole device by a light source at the surface. ... | 04/13/2010 |
| 7444446 | Optical DVI cable, optical signal transmission equipment and optical signal transmission system which have the cable, and method of transmitting optical signal using the cable The present invention provides an optical DVI cable and optical signal transmission equipment which can prevent the leakage of laser light to the outside. The optical DVI cable includes (1) a transmission side unit having a laser light emitting element unit, and con... | 10/28/2008 |
| 7424176 | Optical fiber termination apparatus and methods of use, and optical fiber termination process Apparatus and methods for terminating and anchoring fiber optic connections are disclosed. One apparatus includes a sealed body enclosing a passage for one or more optical fibers terminating in connections proximate a first end of the sealed body, the sealed body ha... | 09/09/2008 |
| 7420475 | Well site communication system A well site communication system for providing communication from downhole devices to surface systems and from surface system to downhole systems, and methods of using are presented. The communication system is particularly applicable for use with spooled conveyance... | 09/02/2008 |
| 7320593 | Light emitting diode light source for curing dental composites Light Emitting Diode Light Sources for Dental Curing are disclosed. Some embodiments of the invention include structures such as Light Emitting Diode Array(s), heat sink, heat dissipation, heat pipe, and control circuitry are disclosed. ... | 01/22/2008 |
| 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 |
| 7212132 | Downhole signal source A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. ... | 05/01/2007 |
| 7208855 | Fiber-optic cable as integral part of a submersible motor system Apparatus, systems and methods are provided for transmission of optical signals through a wellbore whereby optic fibers are protected from exposure to harsh downhole fluids and conditions. The system comprises a power cable assembly running down hole from the surfac... | 04/24/2007 |
| 7193525 | Methods and apparatus for downhole inter-tool communication A method and apparatus for communicating between downhole tools without the necessity of routing the communication through a surface module. Communications sent by downhole tools are examined and extracted downhole. If the communications are intended for other downh... | 03/20/2007 |
| 7176697 | Flexible probe for measuring moisture content in soil The embodiments of the invention are directed to a new apparatus and method of measuring the water content using time domain reflectometry (TDR), or electrical conductivity in deep soil levels. to. The method uses flat, flexible, waveguides attached to a flexible sl... | 02/13/2007 |
| 7158789 | Communication network in particular for telephony A communications network, in particular for telephony, comprises at least one operator a plurality of remote units for exchanging signals with mobile terminals and an interface unit for controlling the data traffic between the operator and the remote units. The inte... | 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 |
| 7154412 | High-power well logging method and apparatus A power delivery system for a wireline tool includes two independent power transmission loops operating on a standard six-conductor cable. The two loops each connect directly to a respective terminals of a DC auxiliary power supply. Each loop also couples through a ... | 12/26/2006 |
| 7154413 | Fused and sealed connector system for permanent reservoir monitoring and production control A connection system is provided for facilitating a downhole electrical reservoir monitoring and/or control system operated by a surface system. The connector system includes a set of fuses and a fuse blowing circuit for isolating a short circuit event and restoring ... | 12/26/2006 |
| 7140435 | Optical fiber conveyance, telemetry, and/or actuation Methods and apparatus comprise a conveyance structure to carry a tool into a wellbore. The conveyance structure contains an optical fiber line to enable communication between the tool and well surface equipment. In one implementation, the conveyance structure compri... | 11/28/2006 |
| 7123162 | Subsea communication system and technique A subsea communication system is used to communicate between a position that is proximal to a surface of the sea and an apparatus of the seabed. The subsea communication system includes an umbilicalless communication system. ... | 10/17/2006 |
| 7104331 | Optical position sensing for well control tools An apparatus and methods are disclosed for using optical sensors to determine the position of a movable flow control element in a well control tool. A housing has a movable element disposed within such that the element movement controls the flow through the tool. An... | 09/12/2006 |
| 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 |
| 6963728 | Low power, high speed data communications in vehicles Cavities within structural members of a motor vehicle or other structure are used for propagation of wireless RF communication signals. The system is particularly adapted for use in structures wherein permanent, fixed transmission guides can be easily provided, and ... | 11/08/2005 |
| 6956381 | Flexible probe for measuring moisture content in soil The embodiments of the invention are directed to a new apparatus and method of measuring the water content using time domain reflectometry (TDR), or electrical conductivity in deep soil levels to. The method uses flat, flexible, waveguides attached to a flexible sle... | 10/18/2005 |
| 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 |
| 6948258 | Device for measuring the internal diameter of a pipe A device being used for measuring the internal diameter of a pipe, which including a tape mounted into a flat elongated body having holes to allow a string to be pulled out of the flat elongated body. The tape includes hole at a first end for connecting a first end ... | 09/27/2005 |
| 6728165 | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors A system for sensing subterranean acoustic waves emitted from an acoustic source includes a plurality of laser sources, a plurality of subterranean optical sensors, at least one optical detector, and electronics. The laser sources each emit light at a different freq... | 04/27/2004 |
| 6724319 | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors A system for sensing subterranean acoustic waves emitted from an acoustic source includes a plurality of laser sources, a plurality of subterranean optical sensors, at least one optical detector, and electronics. The laser sources each emit light at a different freq... | 04/20/2004 |
| 6696974 | Cable device for detecting and monitoring rock and soil displacement A cable composed of material capable of conducting light, sound, or electricity is inserted by appropriate means into a material to be examined. A portion of said cable having predetermined parameters is fixed internally within the material. The cable is ... | 02/24/2004 |
| 6271766 | Distributed selectable latent fiber optic sensors Distributed selectable fiber optic sensing system include a plurality of fiber grating sensors 12 connected to an optical fiber 10 and installed in an oil/gas well 15 and an instrumentation box 20 at the surface which selects which of the sensors 12 to ac... | 08/07/2001 |
| 6229453 | Method to transmit downhole video up standard wireline cable using digital data compression techniques Disclosed is a downhole video system that is suitable for use with a standard wireline transmission line, without the need for coaxial or fiber optic cable. A downhole video camera transmits a digitized video signal that may be multiplexed with orientatio... | 05/08/2001 |
| 6041872 | Disposable telemetry cable deployment system A disposable telemetry cable deployment system for facilitating information retrieval while drilling a well includes a cable spool adapted for insertion into a drill string and an unarmored fiber optic cable spooled onto the spool cable and having a downh... | 03/28/2000 |
| 5903221 | Method and apparatus for determining the moisture level in a buried splice The level of moisture in a buried splice case (14) is provided by a transmitter (26) that is energized from a power circuit (24) via a moisture detector (22) when the moisture detector detects a prescribed level of moisture in the splice case. Once erergi... | 05/11/1999 |
| 5495547 | Combination fiber-optic/electrical conductor well logging cable The present invention is a well logging cable including first conductor elements, each of the first elements consisting of a steel wire surrounded by copper strands and covered in an electrically insulating material, and at least one second conductor elem... | 02/27/1996 |
| 5493626 | Reduced diameter down-hole instrument electrical/optical fiber cable The down-hole instrument cable includes a hermetically sealed optical fiber surrounded by a protective buffer layer and a protective gel within a protective tube. A layer of electrical conductors between an inner insulator and outer insulator layer surrou... | 02/20/1996 |
| 5485745 | Modular downhole inspection system for coiled tubing A downhole inspection tool is attached to the lower end of a length of coiled tubing having an electrical/fiberoptic cable threaded through the center. The coiled tubing carries a flow of optically clear and/or acoustically homogeneous fluid from a supply... | 01/23/1996 |
| 5363094 | Stationary system for the active and/or passive monitoring of an underground deposit Monitoring of an underground effluent deposit (2) and the exploration thereof are performed by installing various devices or user modules : reception arrays (Ri, Rj, Rk) such as geophones or hydrophones, condition sensors (C1, C2) , tools requiring electr... | 11/08/1994 |
| 5363095 | Downhole telemetry system A downhole telemetry system is described for optically communicating to the surface operating parameters of a drill bit during ongoing drilling operations. The downhole telemetry system includes sensors mounted with a drill bit for monitoring at least one... | 11/08/1994 |
| 5355128 | Video logging system having an optical communications link An instrument probe contains a video camera and light source which is positioned in front of the camera for illuminating the passage being inspected, such as a bore or a casing. The power source for the instrument probe is located at the surface. A suppor... | 10/11/1994 |
| 5275038 | Downhole reeled tubing inspection system with fiberoptic cable A system for the inspection of a well borehole and the formation around the borehole. The system includes a pair of concentric reeled tubings for injecting a pair of fluids into a wellbore through a wellhead, one of said fluids being an optically transpar... | 01/04/1994 |
| 4928088 | Apparatus for extracting recorded information from a logging tool A communications system for providing communication between a downhole well logging apparatus and external equipment in which a portion of the external equipment is placed in an aperature in a side wall of the well logging and electromagnetic signals are ... | 05/22/1990 |
| 4893354 | System and method for self-compensating fiber-optic data transmission at temperatures up to 200 degrees C. Data logging at temperatures up to 200° C. by optical signals sent via a "wet" optical fiber is achieved by using as a light source device an LED having a peak amplitude wavelength at ambient temperature which is sufficiently removed from 1390 Å so that... | 01/09/1990 |
| 4891640 | High temperature and pressure fiber optic feedthrough for borehole usage A high temperature and high pressure fiber optic feedthrough is set forth to enable communication to the interior of a pressure housing making up a downhole logging tool. An optical fiber is stripped of protective wraps and coverings other than a fluoroca... | 01/02/1990 |
