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Class Information
Number: 367/82
Name: Communications, electrical: acoustic wave systems and devices > Wellbore telemetering > Through drill string or casing
Description: Subject matter wherein the medium is, or is contained in, means connecting a drill bit in the passageway to driving apparatus on the earth"s surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7605715 |
Electromagnetic wellbore telemetry system for tubular strings |
Oct. 20, 2009 |
| 7598886 |
System and method for wirelessly communicating with a downhole drill string |
Oct. 6, 2009 |
| 7595737 |
Shear coupled acoustic telemetry system |
Sep. 29, 2009 |
| 7590029 |
Methods and systems for communicating data through a pipe |
Sep. 15, 2009 |
| 7518950 |
Method and apparatus for downlink communication |
Apr. 14, 2009 |
| 7482945 |
Apparatus for interfacing with a transmission path |
Jan. 27, 2009 |
| 7468678 |
Downhole telemetry system for wired tubing |
Dec. 23, 2008 |
| 7453768 |
High-speed, downhole, cross well measurement system |
Nov. 18, 2008 |
| 7436320 |
Sensor system and method of communicating data between a downhole device on a remote location |
Oct. 14, 2008 |
| 7429934 |
Mud pulse landing assembly for use in directional drilling |
Sep. 30, 2008 |
| 7423550 |
Two sensor impedance estimation for uplink telemetry signals |
Sep. 9, 2008 |
| 7400262 |
Apparatus and methods for self-powered communication and sensor network |
Jul. 15, 2008 |
| 7339494 |
Acoustic telemetry transceiver |
Mar. 4, 2008 |
| 7324010 |
Acoustic telemetry systems and methods with surface noise cancellation |
Jan. 29, 2008 |
| 7301473 |
Receiver for an acoustic telemetry system |
Nov. 27, 2007 |
| 7298286 |
Apparatus for interfacing with a transmission path |
Nov. 20, 2007 |
| 7277026 |
Downhole component with multiple transmission elements |
Oct. 2, 2007 |
| 7277358 |
Apparatus, method and system for digitally transmitting acoustic pulse gun signals |
Oct. 2, 2007 |
| 7268697 |
Laterally translatable data transmission apparatus |
Sep. 11, 2007 |
| 7265682 |
Joint source-channel coding for multicarrier modulation |
Sep. 4, 2007 |
| 7257050 |
Through tubing real time downhole wireless gauge |
Aug. 14, 2007 |
| 7256707 |
RF transmission line and drill/pipe string switching technology for down-hole telemetry |
Aug. 14, 2007 |
| 7180825 |
Downhole telemetry system for wired tubing |
Feb. 20, 2007 |
| 7173542 |
Data relay for casing mounted sensors, actuators and generators |
Feb. 6, 2007 |
| 7170423 |
Electromagnetic MWD telemetry system incorporating a current sensing transformer |
Jan. 30, 2007 |
| 7145473 |
Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
Dec. 5, 2006 |
| 7142129 |
Method and system for downhole clock synchronization |
Nov. 28, 2006 |
| 7139218 |
Distributed downhole drilling network |
Nov. 21, 2006 |
| 7138929 |
Method and apparatus for enhanced acoustic mud pulse telemetry during underbalanced drilling |
Nov. 21, 2006 |
| 7019665 |
Polished downhole transducer having improved signal coupling |
Mar. 28, 2006 |
| 7013989 |
Acoustical telemetry |
Mar. 21, 2006 |
| 6998999 |
Hybrid piezoelectric and magnetostrictive actuator |
Feb. 14, 2006 |
| 6958704 |
Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
Oct. 25, 2005 |
| 6956791 |
Apparatus for receiving downhole acoustic signals |
Oct. 18, 2005 |
| 6952170 |
Hollow drilling rod for transmitting information |
Oct. 4, 2005 |
| 6940420 |
Drill string telemetry system |
Sep. 6, 2005 |
| 6937159 |
Downhole telemetry and control system using orthogonal frequency division multiplexing |
Aug. 30, 2005 |
| 6933856 |
Adaptive acoustic transmitter controller apparatus and method |
Aug. 23, 2005 |
| 6915875 |
Acoustic isolator for downhole applications |
Jul. 12, 2005 |
| 6912177 |
Transmission of data in boreholes |
Jun. 28, 2005 |
| 6898149 |
Reprogrammable downhole telemetry and control system |
May. 24, 2005 |
| 6891481 |
Resonant acoustic transmitter apparatus and method for signal transmission |
May. 10, 2005 |
| 6888473 |
Repeatable reference for positioning sensors and transducers in drill pipe |
May. 3, 2005 |
| 6866306 |
Low-loss inductive couplers for use in wired pipe strings |
Mar. 15, 2005 |
| 6868040 |
Wireless power and communications cross-bar switch |
Mar. 15, 2005 |
| 6847585 |
Method for acoustic signal transmission in a drill string |
Jan. 25, 2005 |
| 6847304 |
Apparatus and method for transmitting information to and communicating with a downhole device |
Jan. 25, 2005 |
| 6804875 |
Method of mounting elastic wave generator |
Oct. 19, 2004 |
| 6791470 |
Reducing injection loss in drill strings |
Sep. 14, 2004 |
| 6727827 |
Measurement while drilling electromagnetic telemetry system using a fixed downhole receiver |
Apr. 27, 2004 |
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