WO1994004947A1 - Dispositif de localisation d'un tuyau souterrain - Google Patents

Dispositif de localisation d'un tuyau souterrain Download PDF

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Publication number
WO1994004947A1
WO1994004947A1 PCT/GB1993/001686 GB9301686W WO9404947A1 WO 1994004947 A1 WO1994004947 A1 WO 1994004947A1 GB 9301686 W GB9301686 W GB 9301686W WO 9404947 A1 WO9404947 A1 WO 9404947A1
Authority
WO
WIPO (PCT)
Prior art keywords
detecting means
aerials
generating means
housing
horizontal
Prior art date
Application number
PCT/GB1993/001686
Other languages
English (en)
Inventor
Peter Michael Flowerdew
Original Assignee
Akiz Limited
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 Akiz Limited filed Critical Akiz Limited
Priority to AU47237/93A priority Critical patent/AU4723793A/en
Publication of WO1994004947A1 publication Critical patent/WO1994004947A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Un procédé servant à localiser, à l'intérieur d'un plan horizontal (x, y), un dispositif sous le sol comprend les étapes suivantes: mise en place du dispositif dans un boîtier allongé (1) comprenant des moyens servant à générer un champ électromagnétique (2), montage du moyen de génération (2) dans le boîtier (1), afin qu'il effectue une rotation par rapport à l'axe longitudinal du boîtier, de telle manière que le champ généré est un champ solénoïdal, dont l'axe reste sensiblement vertical quand l'axe longitudinal est horizontal, même quand le boîtier (1) tourne autour de l'axe longitudinal; mise en place de moyens de détection au-dessus du sol à proximité de la position directement au-dessus des moyens de génération, les moyens de détection comprenant au moins une antenne (35) servant à détecter le champ électromagnétique généré par les moyens de génération (2); et contrôle du signal détecté par l'antenne, afin de déterminer la position dans le plan horizontal (x, y) des moyens de génération (2) par rapport aux moyens de détection. La forme du champ solénoïdal vertical produit une variation importante du champ depuis une position située directement au-dessus du générateur à une position légèrement éloignée de ce dernier, ce qui permet de calculer avec davantage de précision la position du moyen de génération par rapport aux moyens de détection.
PCT/GB1993/001686 1992-08-11 1993-08-09 Dispositif de localisation d'un tuyau souterrain WO1994004947A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47237/93A AU4723793A (en) 1992-08-11 1993-08-09 Locator for underground pipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9216964.8 1992-08-11
GB9216964A GB2271425A (en) 1992-08-11 1992-08-11 Locating a device underground

Publications (1)

Publication Number Publication Date
WO1994004947A1 true WO1994004947A1 (fr) 1994-03-03

Family

ID=10720123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/001686 WO1994004947A1 (fr) 1992-08-11 1993-08-09 Dispositif de localisation d'un tuyau souterrain

Country Status (3)

Country Link
AU (1) AU4723793A (fr)
GB (1) GB2271425A (fr)
WO (1) WO1994004947A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11802900B2 (en) 2009-07-06 2023-10-31 Merlin Technology Inc. Portable device with removably attachable measuring leg
US11852012B2 (en) 2017-06-28 2023-12-26 Merlin Technology, Inc. Advanced passive interference management in directional drilling system, apparatus and methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9806913D0 (en) * 1998-03-31 1998-05-27 Aw Creative Technologies Ltd Underground location system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246886A1 (fr) * 1986-05-22 1987-11-25 Flowmole Corporation Méthode et dispositif pour la localisation d'une foreuse-sol cachée
US4727329A (en) * 1986-02-19 1988-02-23 Atlantic Richfield Company Method and system for measuring displacement of buried fluid transmission pipelines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8815313D0 (en) * 1988-06-28 1988-08-03 Radiodetection Ltd Improvements relating to underground pipe location

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727329A (en) * 1986-02-19 1988-02-23 Atlantic Richfield Company Method and system for measuring displacement of buried fluid transmission pipelines
EP0246886A1 (fr) * 1986-05-22 1987-11-25 Flowmole Corporation Méthode et dispositif pour la localisation d'une foreuse-sol cachée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11802900B2 (en) 2009-07-06 2023-10-31 Merlin Technology Inc. Portable device with removably attachable measuring leg
US11852012B2 (en) 2017-06-28 2023-12-26 Merlin Technology, Inc. Advanced passive interference management in directional drilling system, apparatus and methods

Also Published As

Publication number Publication date
GB2271425A (en) 1994-04-13
AU4723793A (en) 1994-03-15
GB9216964D0 (en) 1992-09-23

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