CA2152422C - Systeme de transmission de donnees - Google Patents

Systeme de transmission de donnees Download PDF

Info

Publication number
CA2152422C
CA2152422C CA002152422A CA2152422A CA2152422C CA 2152422 C CA2152422 C CA 2152422C CA 002152422 A CA002152422 A CA 002152422A CA 2152422 A CA2152422 A CA 2152422A CA 2152422 C CA2152422 C CA 2152422C
Authority
CA
Canada
Prior art keywords
digital data
hole
cable
serial output
neutral point
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.)
Expired - Fee Related
Application number
CA002152422A
Other languages
English (en)
Other versions
CA2152422A1 (fr
Inventor
Alistair G. Smith
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.)
Camco International Inc
Original Assignee
Camco International 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 Camco International Inc filed Critical Camco International Inc
Priority to CA002152422A priority Critical patent/CA2152422C/fr
Publication of CA2152422A1 publication Critical patent/CA2152422A1/fr
Application granted granted Critical
Publication of CA2152422C publication Critical patent/CA2152422C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B47/06—Measuring temperature or pressure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
CA002152422A 1995-06-22 1995-06-22 Systeme de transmission de donnees Expired - Fee Related CA2152422C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002152422A CA2152422C (fr) 1995-06-22 1995-06-22 Systeme de transmission de donnees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002152422A CA2152422C (fr) 1995-06-22 1995-06-22 Systeme de transmission de donnees

Publications (2)

Publication Number Publication Date
CA2152422A1 CA2152422A1 (fr) 1996-12-23
CA2152422C true CA2152422C (fr) 2001-12-04

Family

ID=4156097

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002152422A Expired - Fee Related CA2152422C (fr) 1995-06-22 1995-06-22 Systeme de transmission de donnees

Country Status (1)

Country Link
CA (1) CA2152422C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9915298D0 (en) * 1999-07-01 1999-09-01 Autonomous Well Company The Lt Power line communication system

Also Published As

Publication number Publication date
CA2152422A1 (fr) 1996-12-23

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Legal Events

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