IT7920429A0 - Apparecchiatura perfezionata per ricevere e interpretare segnali di dati di telemisura inviati alla superficie in un impianto di prospezione durante la trivellazione di fori o pozzi. - Google Patents
Apparecchiatura perfezionata per ricevere e interpretare segnali di dati di telemisura inviati alla superficie in un impianto di prospezione durante la trivellazione di fori o pozzi.Info
- Publication number
- IT7920429A0 IT7920429A0 IT7920429A IT2042979A IT7920429A0 IT 7920429 A0 IT7920429 A0 IT 7920429A0 IT 7920429 A IT7920429 A IT 7920429A IT 2042979 A IT2042979 A IT 2042979A IT 7920429 A0 IT7920429 A0 IT 7920429A0
- Authority
- IT
- Italy
- Prior art keywords
- telemeasurement
- prospecting
- interpreting
- wells
- drilling
- Prior art date
Links
- 230000001976 improved effect Effects 0.000 title 1
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/881,460 US4185246A (en) | 1978-02-27 | 1978-02-27 | Circuit for reducing transients by precharging capacitors |
| US05/881,461 US4215427A (en) | 1978-02-27 | 1978-02-27 | Carrier tracking apparatus and method for a logging-while-drilling system |
| US05/881,459 US4215425A (en) | 1978-02-27 | 1978-02-27 | Apparatus and method for filtering signals in a logging-while-drilling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7920429A0 true IT7920429A0 (it) | 1979-02-22 |
| IT1111989B IT1111989B (it) | 1986-01-13 |
Family
ID=27420508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT20429/79A IT1111989B (it) | 1978-02-27 | 1979-02-22 | Apparecchiatura perfezionata per ricevere e interpretare segnali di dati di telemisura inviati alla superficie in un impianto di prospezione duratne la trivellazione di fori o pozzi |
Country Status (13)
| Country | Link |
|---|---|
| AU (3) | AU524811B2 (it) |
| BR (1) | BR7901224A (it) |
| DE (1) | DE2907085A1 (it) |
| FR (2) | FR2434522A1 (it) |
| GB (3) | GB2087177B (it) |
| GR (1) | GR66583B (it) |
| IE (1) | IE48319B1 (it) |
| IN (1) | IN153402B (it) |
| IT (1) | IT1111989B (it) |
| NL (1) | NL191549C (it) |
| NO (1) | NO790496L (it) |
| OA (1) | OA06193A (it) |
| PH (1) | PH18212A (it) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1206089A (en) * | 1982-06-10 | 1986-06-17 | Gary D. Berkenkamp | Method and apparatus for signal recovery in a logging while drilling system |
| 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 |
| DK0584998T3 (da) * | 1992-08-12 | 1996-12-09 | Halliburton Co | Fremgangsmåde og apparat til detektering af trykimpulser |
| 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)
| 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 |
-
1979
- 1979-02-14 NO NO790496A patent/NO790496L/no unknown
- 1979-02-22 GR GR58435A patent/GR66583B/el unknown
- 1979-02-22 IT IT20429/79A patent/IT1111989B/it active
- 1979-02-22 PH PH22226A patent/PH18212A/en unknown
- 1979-02-23 BR BR7901224A patent/BR7901224A/pt unknown
- 1979-02-23 DE DE19792907085 patent/DE2907085A1/de not_active Withdrawn
- 1979-02-27 OA OA56744A patent/OA06193A/xx unknown
- 1979-02-27 IN IN179/CAL/79A patent/IN153402B/en unknown
- 1979-02-27 GB GB8115020A patent/GB2087177B/en not_active Expired
- 1979-02-27 NL NL7901534A patent/NL191549C/xx not_active IP Right Cessation
- 1979-02-27 AU AU44621/79A patent/AU524811B2/en not_active Ceased
- 1979-02-27 FR FR7905021A patent/FR2434522A1/fr not_active Withdrawn
- 1979-02-27 GB GB8115019A patent/GB2094578B/en not_active Expired
- 1979-02-27 GB GB7906841A patent/GB2015307A/en not_active Withdrawn
- 1979-08-08 IE IE561/79A patent/IE48319B1/en not_active IP Right Cessation
- 1979-09-24 FR FR7924006A patent/FR2433860A1/fr active Granted
-
1982
- 1982-07-06 AU AU85672/82A patent/AU8567282A/en not_active Abandoned
- 1982-07-06 AU AU85673/82A patent/AU8567382A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| GB2094578A (en) | 1982-09-15 |
| GR66583B (it) | 1981-03-27 |
| NO790496L (no) | 1979-08-28 |
| NL191549C (nl) | 1995-09-04 |
| PH18212A (en) | 1985-04-30 |
| IE48319B1 (en) | 1984-12-12 |
| GB2087177B (en) | 1983-02-02 |
| IT1111989B (it) | 1986-01-13 |
| GB2087177A (en) | 1982-05-19 |
| IN153402B (it) | 1984-07-14 |
| NL191549B (nl) | 1995-05-01 |
| FR2433860A1 (fr) | 1980-03-14 |
| AU4462179A (en) | 1979-10-18 |
| GB2094578B (en) | 1983-06-08 |
| FR2433860B1 (it) | 1984-02-24 |
| NL7901534A (nl) | 1979-08-29 |
| DE2907085A1 (de) | 1979-10-25 |
| GB2015307A (en) | 1979-09-05 |
| BR7901224A (pt) | 1979-10-02 |
| AU524811B2 (en) | 1982-10-07 |
| FR2434522A1 (fr) | 1980-03-21 |
| IE790561L (en) | 1979-08-27 |
| AU8567382A (en) | 1982-12-23 |
| OA06193A (fr) | 1981-06-30 |
| AU8567282A (en) | 1982-11-04 |
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