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7385503 |
Self powered son device network
A network includes a plurality of wirelessly interconnected self-organizing network (SON) devices for relaying signals in a self-organizing network and a field device for originating output...
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7378985 |
Communication system for down hole use
A communication system for down hole use and comprising a drill collar ( 101 ) comprising a first portion ( 103 ) and a second portion ( 105 ) separated from each other by an electrically...
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7348894 |
Method and apparatus for using a data telemetry system over multi-conductor wirelines
A data telemetry system for multi-conductor wirelines to enhance transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first...
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7348893 |
Borehole communication and measurement system
A technique that is usable with a well includes using at least one downhole sensor to establish telemetry within the well. The sensor(s) are used as a permanent sensing device.
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7345594 |
Noise attenuation apparatus for borehole telemetry
A surface mud pipeline system is described with a mechanical acoustic filter ( 1245 ) tuned to a predetermined frequency band so as to attenuate pump noise ( 132 ) within this band. The filter can...
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7339494 |
Acoustic telemetry transceiver
One embodiment includes an apparatus that includes a piezoelectric transducer to generate an acoustic signal that is to modulate along a mandrel, wherein the piezoelectric transducer includes at...
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7330397 |
Electromagnetic anti-jam telemetry tool
A mud-pulse telemetry tool includes a tool housing, a motor disposed in the tool housing, and a magnetic coupling coupled to the motor and having an inner shaft and an outer shaft. The tool may...
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7327634 |
Rotary pulser for transmitting information to the surface from a drill string down hole in a well
A rotary pulser for transmitting information to the surface from down hole in a well by generating pressure pulses encoded to contain information. The pressure pulses travel to the surface where...
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7325605 |
Flexible piezoelectric for downhole sensing, actuation and health monitoring
Thin flexible piezoelectric transducers are bonded to or imbedded into oilfield tubular members or structural members. The transducers may be used to telemeter data as acoustic waves through the...
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7313052 |
System and methods of communicating over noisy communication channels
A system and methods of transmitting information between a first location and a second location comprise transmitting a data signal and a known signal from one of the first location and the second...
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7295491 |
High impact communication and control system
A system and method in accordance with the invention communicator remotely with remotely controllable down hole tools in a well bore at a drilling installation. At the surface, high energy pressure...
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7280432 |
Oscillating shear valve for mud pulse telemetry
An oscillating shear valve system for generating pressure fluctuations in a flowing drilling fluid comprising a stationary stator and an oscillating rotor, both with axial flow passages. The rotor...
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7268697 |
Laterally translatable data transmission apparatus
A data transmission apparatus having first and second electrical conductors is disclosed. The first and second electrical conductors are disposed within recesses of a first and second complementary...
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7256706 |
Hybrid well communication system
A hybrid, hardwired and wireless well communication system having a fiber optical, electrical or other signal transmission conduit extending from the wellhead into the well and one or more wireless...
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7250873 |
Downlink pulser for mud pulse telemetry
A mud pulse telemetry system comprises a surface located fluid supply line having a drilling fluid flowing therein. A non-venting pulser is disposed in the drilling fluid in the supply line, and...
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7249636 |
System and method for communicating along a wellbore
A system and method is provided for communicating with a device disposed in a wellbore. Signals are communicated between a surface location and the device via a hardwired section of wellbore and a...
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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...
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7230543 |
Downhole clock synchronization apparatus and methods for use in a borehole drilling environment
Geophysical measurement system employed during the drilling of a well borehole. The system employs a reference clock disposed within equipment at the surface of the earth and a borehole assembly...
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7193527 |
Swivel assembly
A swivel assembly for a downhole tool string comprises a first and second coaxial housing cooperatively arranged. The first housing comprises a first transmission element in communication with...
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7180826 |
Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel
A device, method, and system for creating a pressure pulse from drilling fluid within a drill string in a down hole drill collar for enabling measurement-while drilling. The device and system are...
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7158446 |
Directional acoustic telemetry receiver
Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics...
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7158049 |
Wireless communication circuit
The invention includes a wireless communication circuit and a method of communicating with wireless signals that feature a tank circuit having an inductor connected in parallel with a capacitor...
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7145473 |
Electromagnetic borehole telemetry system incorporating a conductive borehole tubular
An electromagnetic borehole telemetry system for transmitting information between a borehole transceiver and a surface transceiver located at or near the surface of the earth. Tubulars, such as...
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7132958 |
Downhole telemetry system using multiple uplink modes as data channels using discrete multi-tone modulation
A method and a downhole telemetry system a downhole telemetry system using discrete multitone modulation for transmitting a data stream over a plurality of transmission modes is provided. The...
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7126492 |
Electromagnetic borehole telemetry system incorporating a conductive borehole tubular
An electromagnetic borehole telemetry system for transmitting information between a borehole transceiver and a surface transceiver located at or near the surface of the earth. Tubulars, such as...
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7123161 |
Method and apparatus enhanced acoustic mud pulse telemetry
A method and system for telemetry through a drilling fluid during drilling is disclosed. A reflector ( 110 ) is positioned downstream from the drilling mud pumps ( 80 ) and causes reflected...
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7116237 |
Pressure measuring device
The invention relates to a pressure-measuring device (M 1 ) with a controller (C) for controlling the functions of the measuring device (M 1 ) and/or for processing measured data, a sensor (S 1 )...
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7114561 |
Wireless communication using well casing
A petroleum well having a borehole extending into a formation is provided. A piping structure is positioned within the borehole, and an induction choke is positioned around the piping structure...
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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...
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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...
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7071837 |
Data transmission in pipeline systems
Data transmission in pipeline systems A first set of apparatus is arranged for transmitting data from a point in a cased section of a well 1, 3 to a remote location. The apparatus may be used as...
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7053788 |
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,...
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7026951 |
Data telemetry system for multi-conductor wirelines
An improved data telemetry system for multi-conductor wirelines to achieve satisfactory transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two...
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6998999 |
Hybrid piezoelectric and magnetostrictive actuator
An electromechanical transducer formed by an electrical and mechanical combination of a piezoelectric device and a magnetostrictive device. The two devices are electrically coupled so that their...
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6963290 |
Data recovery for pulse telemetry using pulse position modulation
The specification discloses algorithms for error recovery in pulse position modulation-based mud pulse telemetry. More particularly, the specification discloses detection and attempted correction...
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6958704 |
Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
A system and method of communicating among devices via a piping structure using at least one induction choke about the piping structure to route a time-varying current carrying communication...
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6958703 |
Drill string enabling information to be transmitted
The present invention relates to a drill string fitted with information transmission means. The hollow rods of conductive material have their inside faces covered in an insulating material. The...
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6952170 |
Hollow drilling rod for transmitting information
The invention relates to a hollow drilling rod for transmitting information, said rod being for placing in a borehole filled with drilling mud. The rod comprises an electrically conductive...
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6933856 |
Adaptive acoustic transmitter controller apparatus and method
The invention describes a method and apparatus for effectively communicating data along the acoustic channel of a subterranean well. The method comprises optimally driving an acoustic transmitter...
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6920085 |
Downlink telemetry system
A downlink telemetry system providing improved apparatus and methods for communicating instructions via pressure pulses from surface equipment to a downhole assembly. The apparatus comprises a...
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6909667 |
Dual channel downhole telemetry
The present disclosure provides several methods for selecting and transmitting information from downhole using more than one channel of communication wherein data streams transmitted up each...
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6868040 |
Wireless power and communications cross-bar switch
A petroleum well for producing petroleum products that incorporates a system adapted to controllably route communications and/or electrical power having a time-varying current through a piping...
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6850463 |
Borehole logging apparatus for deep well drilling
The invention is directed to a borehole logging apparatus for deep well drilling, with a signal transmitter for transmitting measured data obtained while drilling from a borehole through the...
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6847304 |
Apparatus and method for transmitting information to and communicating with a downhole device
An apparatus for use in drilling or producing from a well bore, the apparatus comprising a downhole member such as a drilling device or a production device which is capable of being attached to a...
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6801136 |
Method of reducing noise in a borehole electromagnetic telemetry system
A method for reducing noise in borehole electromagnetic telemetry systems in which a signal receiver is positioned at a distance from a drill site borehole at which the signal receiver couples...
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6734805 |
Composite pipe telemetry conduit
A section of pipe for well operations has a cylindrical fiber composite pipe body and a pair of metallic end fittings. The end fittings differ from each other in that they are provided with mating...
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6714138 |
Method and apparatus for transmitting information to the surface from a drill string down hole in a well
A method and apparatus for transmitting information to the surface from down hole in a well in which a pulser is incorporated into the bottom hole assembly of a drill string that generates pressure...
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6710720 |
Pressure impulse telemetry apparatus and method
An apparatus and method of communicating in a tubular system ( 20 ) through a media ( 65 ) disposed therein and actuating a controllable device ( 58 ) are disclosed. The apparatus and method...
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6636159 |
Borehole logging apparatus for deep well drillings with a device for transmitting borehole measurement data
In a borehole logging apparatus ( 1 ) for deep well drillings having a device for transmitting measured data obtained while drilling from a borehole through the drilling fluid to the earth's...
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6624759 |
Remote actuation of downhole tools using vibration
A communication system is disclosed enabling communication from a surface location to a downhole location where instructions communicated are executed. The system employs accelerometers to sense...
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