MX4556E - Mejoras en sistema de telemedicion de senales en un pozo de sondeo durante la perforacion - Google Patents
Mejoras en sistema de telemedicion de senales en un pozo de sondeo durante la perforacionInfo
- Publication number
- MX4556E MX4556E MX79100746U MX10074679U MX4556E MX 4556 E MX4556 E MX 4556E MX 79100746 U MX79100746 U MX 79100746U MX 10074679 U MX10074679 U MX 10074679U MX 4556 E MX4556 E MX 4556E
- Authority
- MX
- Mexico
- Prior art keywords
- soundboard
- tele
- signals
- measurement system
- during drilling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
- 238000005259 measurement Methods 0.000 title 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX4556E true MX4556E (es) | 1982-06-10 |
Family
ID=25378539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX79100746U MX4556E (es) | 1978-02-27 | 1979-02-26 | Mejoras en sistema de telemedicion de senales en un pozo de sondeo durante la perforacion |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4185246A (es) |
| CA (2) | CA1128187A (es) |
| MX (1) | MX4556E (es) |
| PH (1) | PH21548A (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419765A (en) * | 1979-10-12 | 1983-12-06 | Keith H. Wycoff | Signal absence detector |
| JPS58501519A (ja) * | 1981-09-24 | 1983-09-08 | キヤタピラ− トラツクタ− カンパニイ | 信号調整回路 |
| US4559505A (en) * | 1983-01-04 | 1985-12-17 | Motorola, Inc. | Frequency synthesizer with improved priority channel switching |
| US4590618A (en) * | 1984-03-13 | 1986-05-20 | Motorola, Inc. | Receiver having reference voltage stabilization circuitry |
| US4590394A (en) * | 1984-03-13 | 1986-05-20 | Motorola, Inc. | Signal processing circuit with voltage clamped input |
| GB2190255B (en) * | 1986-04-30 | 1989-11-29 | Philips Electronic Associated | Electrical filter |
| US4866261A (en) * | 1987-01-02 | 1989-09-12 | Motorola, Inc. | Data limiter having current controlled response time |
| EP0631395B1 (fr) * | 1993-06-28 | 1999-03-24 | CSEM Centre Suisse d'Electronique et de Microtechnique SA | Circuit de traitement de signaux comportant un étage d'entrée à gain variable |
| CA2252241A1 (en) * | 1997-11-06 | 1999-05-06 | Harris Simon | Method and apparatus for fast recovery from loss of lock in a phase locked loop |
| US6404578B1 (en) | 1999-09-28 | 2002-06-11 | Koninklijke Philips Electronics N.V. | Circuit for reduction and optimization of write-to-read settling times in magnetic medium storage devices |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH514251A (de) * | 1970-08-21 | 1971-10-15 | Siemens Ag Albis | Schaltungsanordnung zum wahlweisen Anschalten wenigstens zweier Eingänge an eine wenigstens einen Vorbereitungs- und einen Auslöseeingang aufweisende Zählstufe |
| US3725674A (en) * | 1971-07-08 | 1973-04-03 | Motorola Inc | Impulse noise blanker including broadband level sensing |
| US3795877A (en) * | 1973-04-30 | 1974-03-05 | Gte Sylvania Inc | High q notch filter |
| US4132908A (en) * | 1977-08-04 | 1979-01-02 | Smiths Industries, Inc. | Digital-to-analog conversion with deglitch |
-
1978
- 1978-02-27 US US05/881,460 patent/US4185246A/en not_active Expired - Lifetime
-
1979
- 1979-02-22 PH PH22227A patent/PH21548A/en unknown
- 1979-02-26 MX MX79100746U patent/MX4556E/es unknown
- 1979-02-26 CA CA322,271A patent/CA1128187A/en not_active Expired
-
1982
- 1982-04-19 CA CA000401252A patent/CA1147840A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1128187A (en) | 1982-07-20 |
| CA1147840A (en) | 1983-06-07 |
| PH21548A (en) | 1987-12-11 |
| US4185246A (en) | 1980-01-22 |
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