FR2433860B1 - - Google Patents

Info

Publication number
FR2433860B1
FR2433860B1 FR7924006A FR7924006A FR2433860B1 FR 2433860 B1 FR2433860 B1 FR 2433860B1 FR 7924006 A FR7924006 A FR 7924006A FR 7924006 A FR7924006 A FR 7924006A FR 2433860 B1 FR2433860 B1 FR 2433860B1
Authority
FR
France
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.)
Expired
Application number
FR7924006A
Other versions
FR2433860A1 (fr
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.)
Schlumberger Technology Corp
Original Assignee
Schlumberger Technology Corp
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
Priority claimed from US05/881,459 external-priority patent/US4215425A/en
Priority claimed from US05/881,461 external-priority patent/US4215427A/en
Priority claimed from US05/881,460 external-priority patent/US4185246A/en
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of FR2433860A1 publication Critical patent/FR2433860A1/fr
Application granted granted Critical
Publication of FR2433860B1 publication Critical patent/FR2433860B1/fr
Granted legal-status Critical Current

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
    • E21B47/20—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 by modulation of mud waves, e.g. by continuous modulation
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/101—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
FR7924006A 1978-02-27 1979-09-24 Procede et dispositif de demodulation de signaux pour des systemes de mesure en cours de forage Granted FR2433860A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/881,459 US4215425A (en) 1978-02-27 1978-02-27 Apparatus and method for filtering signals in a logging-while-drilling system
US05/881,461 US4215427A (en) 1978-02-27 1978-02-27 Carrier tracking apparatus and method for a logging-while-drilling system
US05/881,460 US4185246A (en) 1978-02-27 1978-02-27 Circuit for reducing transients by precharging capacitors

Publications (2)

Publication Number Publication Date
FR2433860A1 FR2433860A1 (fr) 1980-03-14
FR2433860B1 true FR2433860B1 (fr) 1984-02-24

Family

ID=27420508

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7905021A Withdrawn FR2434522A1 (fr) 1978-02-27 1979-02-27 Procede et dispositif de demodulation de signaux pour des systemes de mesure en cours de forage
FR7924006A Granted FR2433860A1 (fr) 1978-02-27 1979-09-24 Procede et dispositif de demodulation de signaux pour des systemes de mesure en cours de forage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7905021A Withdrawn FR2434522A1 (fr) 1978-02-27 1979-02-27 Procede et dispositif de demodulation de signaux pour des systemes de mesure en cours de forage

Country Status (13)

Country Link
AU (3) AU524811B2 (fr)
BR (1) BR7901224A (fr)
DE (1) DE2907085A1 (fr)
FR (2) FR2434522A1 (fr)
GB (3) GB2015307A (fr)
GR (1) GR66583B (fr)
IE (1) IE48319B1 (fr)
IN (1) IN153402B (fr)
IT (1) IT1111989B (fr)
NL (1) NL191549C (fr)
NO (1) NO790496L (fr)
OA (1) OA06193A (fr)
PH (1) PH18212A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1206089A (fr) * 1982-06-10 1986-06-17 Gary D. Berkenkamp Dispositif de captage des signaux de diagraphie emis en cours de forage
US4514706A (en) * 1982-09-24 1985-04-30 Rockwell International Corporation Second or higher order PLL with increased low and medium frequency gain
GB2168879A (en) * 1984-11-19 1986-06-25 Technophone Ltd Differential phase shift keying detector
US4885553A (en) * 1988-11-30 1989-12-05 Motorola, Inc. Continuously adaptive phase locked loop synthesizer
JP2798142B2 (ja) * 1990-06-15 1998-09-17 三菱電機株式会社 周波数シンセサイザ
DE4102800A1 (de) * 1991-01-31 1992-08-06 Thomson Brandt Gmbh Phasenregelkreis mit nachlaufsynchronisation
US5283768A (en) * 1991-06-14 1994-02-01 Baker Hughes Incorporated Borehole liquid acoustic wave transducer
EP0584998B1 (fr) * 1992-08-12 1996-11-20 Halliburton Company Procédé et appareil pour détecter des impulsions de pression
US5969638A (en) * 1998-01-27 1999-10-19 Halliburton Energy Services, Inc. Multiple transducer MWD surface signal processing
GB2347286B (en) * 1999-02-26 2001-04-18 Motorola Ltd Frequency tracking loop and method of frequency tracking
US8286257B2 (en) 2008-06-02 2012-10-09 Schlumberger Technology Corporation Enabling synchronous and asynchronous collaboration for software applications
US8302685B2 (en) * 2009-01-30 2012-11-06 Schlumberger Technology Corporation Mud pulse telemetry data modulation technique
CN106154311A (zh) * 2016-08-25 2016-11-23 中国电建集团贵阳勘测设计研究院有限公司 一种上仰孔单孔声波测试装置
CN106761711B (zh) * 2016-12-26 2024-02-02 中石化江汉石油工程有限公司 一种井下仪器多功能通讯控制系统
RU2722968C1 (ru) * 2019-08-22 2020-06-05 Акционерное общество "Всероссийский научно-исследовательский институт "Градиент" Устройство обнаружения акустических активных воздушных объектов

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916307A (en) * 1974-02-14 1975-10-28 Hekimian Laboratories Inc Time jitter meter
GB1485663A (en) * 1975-03-19 1977-09-14 Mobil Oil Corp Details of an uphole receiver for a logging-while-drilling system
US4007429A (en) * 1976-01-19 1977-02-08 Gte International Incorporated Phase-locked loop having a switched lowpass filter

Also Published As

Publication number Publication date
GB2087177B (en) 1983-02-02
AU8567282A (en) 1982-11-04
PH18212A (en) 1985-04-30
DE2907085A1 (de) 1979-10-25
AU4462179A (en) 1979-10-18
GB2094578B (en) 1983-06-08
NL191549B (nl) 1995-05-01
GB2094578A (en) 1982-09-15
IN153402B (fr) 1984-07-14
IT1111989B (it) 1986-01-13
IE790561L (en) 1979-08-27
BR7901224A (pt) 1979-10-02
GB2015307A (en) 1979-09-05
OA06193A (fr) 1981-06-30
NL191549C (nl) 1995-09-04
NO790496L (no) 1979-08-28
AU8567382A (en) 1982-12-23
FR2434522A1 (fr) 1980-03-21
GB2087177A (en) 1982-05-19
AU524811B2 (en) 1982-10-07
NL7901534A (nl) 1979-08-29
FR2433860A1 (fr) 1980-03-14
IT7920429A0 (it) 1979-02-22
GR66583B (fr) 1981-03-27
IE48319B1 (en) 1984-12-12

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Legal Events

Date Code Title Description
ST Notification of lapse