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GB2038585B - Duct-tracing apparatus - Google Patents

Duct-tracing apparatus

Info

Publication number
GB2038585B
GB2038585B GB7849154A GB7849154A GB2038585B GB 2038585 B GB2038585 B GB 2038585B GB 7849154 A GB7849154 A GB 7849154A GB 7849154 A GB7849154 A GB 7849154A GB 2038585 B GB2038585 B GB 2038585B
Authority
GB
United Kingdom
Prior art keywords
duct
tracing apparatus
tracing
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
GB7849154A
Other versions
GB2038585A (en
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.)
WILCOCK N
Original Assignee
WILCOCK N
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 WILCOCK N filed Critical WILCOCK N
Priority to GB7849154A priority Critical patent/GB2038585B/en
Publication of GB2038585A publication Critical patent/GB2038585A/en
Application granted granted Critical
Publication of GB2038585B publication Critical patent/GB2038585B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/48—Indicating the position of the pig or mole in the pipe or conduit
    • 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
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
    • E21B47/0232—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor at least one of the energy sources or one of the detectors being located on or above the ground surface
    • 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
    • E21B47/13—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 by electromagnetic energy, e.g. radio frequency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/40—Separating transported fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB7849154A 1978-12-19 1978-12-19 Duct-tracing apparatus Expired GB2038585B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7849154A GB2038585B (en) 1978-12-19 1978-12-19 Duct-tracing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7849154A GB2038585B (en) 1978-12-19 1978-12-19 Duct-tracing apparatus

Publications (2)

Publication Number Publication Date
GB2038585A GB2038585A (en) 1980-07-23
GB2038585B true GB2038585B (en) 1983-04-27

Family

ID=10501825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849154A Expired GB2038585B (en) 1978-12-19 1978-12-19 Duct-tracing apparatus

Country Status (1)

Country Link
GB (1) GB2038585B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8304330D0 (en) * 1983-02-16 1983-03-23 Howell M I Electromagnetic surveying of pipes and cables
GB8913319D0 (en) * 1989-06-09 1989-07-26 British Gas Plc Moling system
US6092406A (en) * 1999-04-28 2000-07-25 Crc-Evans Pipeline International, Inc. Pipeline mandrel positioning control system
FR2949528B1 (en) * 2009-09-03 2011-09-02 Lyonnaise Eaux France PROCESS FOR THE REPLACEMENT WITHOUT TRENCH OF A UNDERGROUND LEAD LINE
CN105149300B (en) * 2015-07-20 2017-06-09 天津城建大学 Novel underground drain road sewage disposal apparatus

Also Published As

Publication number Publication date
GB2038585A (en) 1980-07-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee