GB2458395B - Identification of the channel frequency response using stepped frequencies - Google Patents

Identification of the channel frequency response using stepped frequencies

Info

Publication number
GB2458395B
GB2458395B GB0910285A GB0910285A GB2458395B GB 2458395 B GB2458395 B GB 2458395B GB 0910285 A GB0910285 A GB 0910285A GB 0910285 A GB0910285 A GB 0910285A GB 2458395 B GB2458395 B GB 2458395B
Authority
GB
United Kingdom
Prior art keywords
identification
frequency response
channel frequency
stepped frequencies
stepped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB0910285A
Other versions
GB0910285D0 (en
GB2458395A (en
Inventor
Nabil Hentati
Hanno Reckmann
Ingolf Wassermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to GB0910285A priority Critical patent/GB2458395B/en
Publication of GB0910285D0 publication Critical patent/GB0910285D0/en
Publication of GB2458395A publication Critical patent/GB2458395A/en
Application granted granted Critical
Publication of GB2458395B publication Critical patent/GB2458395B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H15/00—Measuring mechanical or acoustic impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/003—Seismic data acquisition in general, e.g. survey design
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
    • G01V11/002—Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radio Relay Systems (AREA)
GB0910285A 2004-11-22 2005-11-19 Identification of the channel frequency response using stepped frequencies Active GB2458395B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0910285A GB2458395B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using stepped frequencies

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62999004P 2004-11-22 2004-11-22
GB0710317A GB2435660B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using chirps
GB0910285A GB2458395B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using stepped frequencies

Publications (3)

Publication Number Publication Date
GB0910285D0 GB0910285D0 (en) 2009-07-29
GB2458395A GB2458395A (en) 2009-09-23
GB2458395B true GB2458395B (en) 2009-11-04

Family

ID=38198608

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0910286A Active GB2458396B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using a pseudo-random sequence or pseudo-random binary sequence
GB0910285A Active GB2458395B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using stepped frequencies
GB0710317A Active GB2435660B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using chirps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0910286A Active GB2458396B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using a pseudo-random sequence or pseudo-random binary sequence

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0710317A Active GB2435660B (en) 2004-11-22 2005-11-19 Identification of the channel frequency response using chirps

Country Status (3)

Country Link
CA (1) CA2588059C (en)
GB (3) GB2458396B (en)
NO (1) NO338841B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9765615B2 (en) 2013-08-28 2017-09-19 Evolution Engineering Inc. Optimizing electromagnetic telemetry transmissions
RU2786461C1 (en) * 2020-05-28 2022-12-21 Чайна Ойлфилд Сервисез Лимитед Method and device for controlling a hydropulse generator, and a method for determining the equation that controls the rotation of the hydropulse generator rotor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105784103B (en) * 2016-01-22 2019-01-29 北京航空航天大学 A kind of frequency characteristic measurement method of the change signal-to-noise ratio based on nonlinear frequency modulation excitation
US20220205959A1 (en) * 2019-01-16 2022-06-30 Massachusetts Institute Of Technology Acoustic spectrometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055837A (en) * 1990-09-10 1991-10-08 Teleco Oilfield Services Inc. Analysis and identification of a drilling fluid column based on decoding of measurement-while-drilling signals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314364A (en) * 1979-07-26 1982-02-02 Atlantic Richfield Company Long sweep vibroseis record production
US5283768A (en) * 1991-06-14 1994-02-01 Baker Hughes Incorporated Borehole liquid acoustic wave transducer
US5124953A (en) * 1991-07-26 1992-06-23 Teleco Oilfield Services Inc. Acoustic data transmission method
DE19646164A1 (en) * 1996-11-08 1998-05-14 Deutsche Telekom Ag Process for the transmission of digital signals
US6509866B2 (en) * 2000-01-12 2003-01-21 California Institute Of Technology Fast chirp transform

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055837A (en) * 1990-09-10 1991-10-08 Teleco Oilfield Services Inc. Analysis and identification of a drilling fluid column based on decoding of measurement-while-drilling signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9765615B2 (en) 2013-08-28 2017-09-19 Evolution Engineering Inc. Optimizing electromagnetic telemetry transmissions
US9988897B2 (en) 2013-08-28 2018-06-05 Evolution Engineering Inc. Optimizing electromagnetic telemetry transmissions
US10233747B2 (en) 2013-08-28 2019-03-19 Evolution Engineering Inc. Optimizing electromagnetic telemetry transmissions
RU2786461C1 (en) * 2020-05-28 2022-12-21 Чайна Ойлфилд Сервисез Лимитед Method and device for controlling a hydropulse generator, and a method for determining the equation that controls the rotation of the hydropulse generator rotor

Also Published As

Publication number Publication date
GB2435660A (en) 2007-09-05
NO338841B1 (en) 2016-10-24
GB2458396A (en) 2009-09-23
GB0910285D0 (en) 2009-07-29
CA2588059C (en) 2010-06-08
NO20072656L (en) 2007-06-08
CA2588059A1 (en) 2006-06-01
GB0910286D0 (en) 2009-07-29
GB2435660B (en) 2009-10-14
GB0710317D0 (en) 2007-07-11
GB2458396B (en) 2009-11-04
GB2458395A (en) 2009-09-23

Similar Documents

Publication Publication Date Title
EP1894375A4 (en) Time and frequency channel estimation
GB2415109B (en) Radio frequency tags for turbulent flows
GB2429875B (en) Improved broadband carrier frequency selection
GB2430245B (en) Low frequency acoustic attenuator
EP1825560A4 (en) Device for emission of high frequency signals
EP1753708A4 (en) Novel sirtuin activating compounds and methods for making the same
GB2415554B (en) Radio frequency tuner
EP1661590A4 (en) Multifunctional mammary-gland-meridian frequency spectrometer
GB0400834D0 (en) Radio frequency identification tagging
IL179811A0 (en) Identification of tumors
DE502004011058D1 (en) CASE FREQUENCY
EP1952649A4 (en) Methods and devices for allocating frequency ranges
SG118371A1 (en) Radio frequency identification system
EP1733567A4 (en) System, unit and method of frequency re-planning
WO2005091506A8 (en) Frequency divider
GB2458395B (en) Identification of the channel frequency response using stepped frequencies
EP1718669A4 (en) Identification of novel ige epitopes
EP1767861A4 (en) High frequency cookware
GB2412826B (en) Frequency division multiplexing
EP1820314A4 (en) Transmitter and frequency hopping method of the same
AU302906S (en) Showerhead
GB0618641D0 (en) Frequency ramp modulation
GB2433708B (en) High frequency atomization device
EP1827482A4 (en) Novel uses of egf
GB2420667B (en) Frequency comparator