NO305327B1 - FremgangsmÕte for optimalisering av signaloverf°ringshastighet for flerfunksjons br°nnkabler - Google Patents

FremgangsmÕte for optimalisering av signaloverf°ringshastighet for flerfunksjons br°nnkabler Download PDF

Info

Publication number
NO305327B1
NO305327B1 NO921627A NO921627A NO305327B1 NO 305327 B1 NO305327 B1 NO 305327B1 NO 921627 A NO921627 A NO 921627A NO 921627 A NO921627 A NO 921627A NO 305327 B1 NO305327 B1 NO 305327B1
Authority
NO
Norway
Prior art keywords
transmission
code
signals
voltages
line
Prior art date
Application number
NO921627A
Other languages
English (en)
Norwegian (no)
Other versions
NO921627L (no
NO921627D0 (no
Inventor
Claude Beauducel
Jaques Cretin
Daniel Saussier
Original Assignee
Inst Francais Du Petrole
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 Inst Francais Du Petrole filed Critical Inst Francais Du Petrole
Publication of NO921627D0 publication Critical patent/NO921627D0/no
Publication of NO921627L publication Critical patent/NO921627L/no
Publication of NO305327B1 publication Critical patent/NO305327B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Fluid Mechanics (AREA)
  • Remote Sensing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Communication Cables (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
NO921627A 1991-04-29 1992-04-27 FremgangsmÕte for optimalisering av signaloverf°ringshastighet for flerfunksjons br°nnkabler NO305327B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9105375A FR2675974B1 (fr) 1991-04-29 1991-04-29 Procede et dispositif pour optimiser les debits de transmission des signaux sur des cables de puits multi-fonctions.

Publications (3)

Publication Number Publication Date
NO921627D0 NO921627D0 (no) 1992-04-27
NO921627L NO921627L (no) 1992-10-30
NO305327B1 true NO305327B1 (no) 1999-05-10

Family

ID=9412442

Family Applications (1)

Application Number Title Priority Date Filing Date
NO921627A NO305327B1 (no) 1991-04-29 1992-04-27 FremgangsmÕte for optimalisering av signaloverf°ringshastighet for flerfunksjons br°nnkabler

Country Status (8)

Country Link
US (1) US5243337A (de)
EP (1) EP0511915B1 (de)
JP (1) JP3435606B2 (de)
CA (1) CA2067546C (de)
DE (1) DE69206675T2 (de)
FR (1) FR2675974B1 (de)
NO (1) NO305327B1 (de)
WO (1) WO1992019839A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515039A (en) * 1994-07-19 1996-05-07 Panex Corporation Surface/downhole pressure recording system
US5691639A (en) * 1996-08-28 1997-11-25 Honeywell Inc. Proximity sensor circuit with frequency changing capability
US7787525B1 (en) * 1999-12-24 2010-08-31 Schlumberger Technology Corporation Method and apparatus for transmission of well-bore data on multiple carrier frequencies
US6657551B2 (en) 2001-02-01 2003-12-02 Halliburton Energy Services, Inc. Downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation
US7348894B2 (en) 2001-07-13 2008-03-25 Exxon Mobil Upstream Research Company Method and apparatus for using a data telemetry system over multi-conductor wirelines
US7026951B2 (en) * 2001-07-13 2006-04-11 Exxonmobil Upstream Research Company Data telemetry system for multi-conductor wirelines
US20040155794A1 (en) * 2003-02-06 2004-08-12 Halliburton Energy Services, Inc. Downhole telemetry system using discrete multi-tone modulation with adaptive noise cancellation
US7026952B2 (en) * 2003-02-21 2006-04-11 Halliburton Energy Services, Inc. Downhole telemetry system using discrete multi-tone modulation having repeated symbols

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514750A (en) * 1968-06-24 1970-05-26 Atlantic Richfield Co Borehole telemetering system
DE2937697C2 (de) * 1979-09-18 1983-04-14 Siemens AG, 1000 Berlin und 8000 München Erzeugung mehrstufiger digitaler Signale aus binärenSignalen sehr hoher Bitrate
US5051991A (en) * 1984-10-17 1991-09-24 Ericsson Ge Mobile Communications Inc. Method and apparatus for efficient digital time delay compensation in compressed bandwidth signal processing
US5010333A (en) * 1989-05-17 1991-04-23 Halliburton Logging Services, Inc. Advanced digital telemetry system for monocable transmission featuring multilevel correlative coding and adaptive transversal filter equalizer
US5083124A (en) * 1990-04-17 1992-01-21 Teleco Oilfield Services Inc. Nuclear logging tool electronics including programmable gain amplifier and peak detection circuits

Also Published As

Publication number Publication date
NO921627L (no) 1992-10-30
DE69206675T2 (de) 1996-05-02
CA2067546C (fr) 2002-04-02
FR2675974B1 (fr) 1993-07-09
EP0511915B1 (de) 1995-12-13
JP3435606B2 (ja) 2003-08-11
JPH05508284A (ja) 1993-11-18
NO921627D0 (no) 1992-04-27
CA2067546A1 (fr) 1992-10-30
DE69206675D1 (de) 1996-01-25
WO1992019839A1 (fr) 1992-11-12
FR2675974A1 (fr) 1992-10-30
EP0511915A1 (de) 1992-11-04
US5243337A (en) 1993-09-07

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