GB1302070A - - Google Patents

Info

Publication number
GB1302070A
GB1302070A GB5527670A GB5527670A GB1302070A GB 1302070 A GB1302070 A GB 1302070A GB 5527670 A GB5527670 A GB 5527670A GB 5527670 A GB5527670 A GB 5527670A GB 1302070 A GB1302070 A GB 1302070A
Authority
GB
United Kingdom
Prior art keywords
counter
housing
signal
gate
circuit
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
Application number
GB5527670A
Other languages
English (en)
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 filed Critical
Publication of GB1302070A publication Critical patent/GB1302070A/en
Expired 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
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole
    • 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
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/06—Speed or phase control by synchronisation signals the synchronisation signals differing from the information signals in amplitude, polarity or frequency or length

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Optical Transform (AREA)
GB5527670A 1969-11-21 1970-11-20 Expired GB1302070A (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87900869A 1969-11-21 1969-11-21
US87900969A 1969-11-21 1969-11-21
US87901169A 1969-11-21 1969-11-21

Publications (1)

Publication Number Publication Date
GB1302070A true GB1302070A (de) 1973-01-04

Family

ID=27420500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5527670A Expired GB1302070A (de) 1969-11-21 1970-11-20

Country Status (3)

Country Link
DE (1) DE2057229A1 (de)
FR (1) FR2068583B1 (de)
GB (1) GB1302070A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143687A (en) * 1983-07-07 1985-02-13 Norway Geophysical Co Synchronization of the current supply frequency in digital seismic streamers
CN107420088A (zh) * 2017-06-12 2017-12-01 中国石油集团测井有限公司吐哈事业部 测井仪器控制装置及测井参数采集系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO761414L (de) * 1975-05-12 1976-11-15 Teleco Inc
FR2411958A1 (fr) * 1977-12-19 1979-07-13 Russell Michael Instruments pour mesurer l'orientation d'un forage
DE102010027607A1 (de) * 2010-07-20 2012-01-26 Bauer Spezialtiefbau Gmbh In-Situ hergestellte Bodenmörtellamellen mit geometrischer Darstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143687A (en) * 1983-07-07 1985-02-13 Norway Geophysical Co Synchronization of the current supply frequency in digital seismic streamers
CN107420088A (zh) * 2017-06-12 2017-12-01 中国石油集团测井有限公司吐哈事业部 测井仪器控制装置及测井参数采集系统
CN107420088B (zh) * 2017-06-12 2023-12-12 中国石油集团测井有限公司吐哈事业部 测井仪器控制装置及测井参数采集系统

Also Published As

Publication number Publication date
FR2068583B1 (de) 1975-02-21
DE2057229A1 (de) 1971-06-24
FR2068583A1 (de) 1971-08-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee