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Class 340/854.9 - Cable or wire (e.g., conductor as support, etc.)


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein an electrical information or control
No. of applications: 18
Last issue date: 02/02/2012


Application No.Application TitleIssue Date
20120026003Systems and Methods for Downhole Instrument Communication Via Power Cable
Systems and methods for reliably communicating data between surface and downhole equipment over a power cable, regardless of the length of the power cable, wherein a transmitter modulates a common data stream onto multiple high frequency carrier signals, each of which h...
02/02/2012
20110163891METHODS AND SYSTEMS FOR DOWNHOLE TELEMETRY
Subterranean oilfield high-temperature devices configured or designed to facilitate downhole monitoring and high data transmission rates with remotely pumped lasers that are configured for operation downhole, within a borehole, at temperatures in excess of 115 degrees C...
07/07/2011
20100289668Power and Signal Distribution System
A power and signal distribution system comprises a converter unit connected to a plurality of control units. The converter unit and the control units are arranged in areas difficult to access, for instance on the sea bed. The converter unit is connected to a remote moni...
11/18/2010
20100271233SURFACE COMMUNICATION APPARATUS AND METHOD FOR USE WITH DRILL STRING TELEMETRY
An operation of drilling an earth borehole uses a drilling rig, a drill string of drill pipes having its generally upper end mechanically coupleable with and suspendable from the drilling rig, a drive string portion of the drill string, mechanically coupleable with the ...
10/28/2010
20100207783Subsea Well Control System
A subsea well control system comprises: a well tree (6 or 7) having a subsea control module (10 or 11); and a power and communications distribution module (5) for communication with the subsea control module via a communication link (<...
08/19/2010
20100194587METHODS AND SYSTEMS FOR BOREHOLE TELEMETRY
Methods and systems for borehole telemetry utilizing a tool configured or designed for deployment in a borehole traversing a subterranean formation. The tool includes a downhole telemetry module; a surface telemetry module; and a datalink between the downhole and surfac...
08/05/2010
20100194588Telemetry System for Slickline Enabling Real Time Logging
A system for communicating with a slickline tool is disclosed. The system includes a closed-loop electrical circuit including a surface module, a forward path, a tool, and a return path. The forward path includes a slickline cable....
08/05/2010
20100194586Methods and systems for borehole telemetry
Methods and systems for borehole telemetry utilizing a tool configured or designed for deployment in a borehole traversing a subterranean formation. The tool includes a downhole telemetry module; a surface telemetry module; and a datalink between the downhole and surfac...
08/05/2010
20100066560WELLBORE CASING MOUNTED DEVICE FOR DETERMINATION OF FRACTURE GEOMETRY AND METHOD FOR USING SAME
A logging system and method for measuring propped fractures and down-hole subterranean formation conditions including: a radar source; an optical source; an optical modulator for modulating an optical signal from the optical source according to a signal from the radar s...
03/18/2010
20090322554Determining Electrical Characteristics of an Electrical Cable
To characterize an electrical cable that is deployed in a well, a voltage input is applied to the electrical cable at an earth surface location, where the well extends from the earth surface location. A current response resulting from the voltage input is measured at th...
12/31/2009
20090243875SYSTEM AND METHOD FOR CONTROLLING MULTIPLE WELL TOOLS
A technique facilitates control over multiple well tools. Multiple well tools can be actuated between operational positions. The well tools are coupled to a plurality of multidrop modules with each multidrop module typically being coupled to one or two well tools. Contr...
10/01/2009
20090212970Wired Tool String Component
A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second end of the second component through mating threads. First and second induc...
08/27/2009
20090115623Bidirectional Telemetry Apparatus And Methods For Wellbore Operations
A system and method for communicating data between a downhole tool and a surface controller is provided that comprises a rotating drill string extending in a borehole and having a downhole telemetry module disposed proximate a bottom end thereof and transmitting a first...
05/07/2009
20090021393SYSTEM AND METHOD FOR AN AC POWERED DOWNHOLE GAUGE
Borehole instruments are powered by AC instrument power transmitted on all three phases of a power cable concurrently carrying three phase motor power, the instrument power transmitted at a multiple of the motor power frequency and having a corresponding fraction of the...
01/22/2009
20080272932Data Communication and Power Supply System for Downhole Applications
A data communication system for use in downhole applications wherein electrical energy is supplied over a multiple-conductor power cable to an ESP motor assembly. A downhole unit is AC-coupled to the conductors of the power cable through the wye point of the ESP motor a...
11/06/2008
20080224887Seismic Data Acquisition System and Method for Downhole Use
A method and system for conducting a seismic survey by lowering a string of intelligent clampable sensor pods with 3-C sensors into a borehole. The string of pods is serially interconnected by a cable having a conductor pair which provides both power and data connectivi...
09/18/2008
20080218375BANDWIDTH WIRELINE DATA TRANSMISSION SYSTEM AND METHOD
A suspended well logging device for use in a wellbore drilled in an earthen formation may include a cable configured to be conveyed into the wellbore; a single twisted pair of conductors positioned in the cable; and a conductive armor surrounding the single twisted pair...
09/11/2008
20080143552SENSOR ARRAY FOR DOWN-HOLE MEASUREMENT
A sensor array includes an array of nodes coupled to an optical transmission line. The nodes include a transducer, and encoder, and a transmitter. The transducer senses an environmental condition such as temperature and pressure. The encoder encodes readings from the tr...
06/19/2008
 
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