NO20011380L - Downhole tools that include an electrically controllable antenna for use with a remote sensing device inserted into the formation - Google Patents

Downhole tools that include an electrically controllable antenna for use with a remote sensing device inserted into the formation

Info

Publication number
NO20011380L
NO20011380L NO20011380A NO20011380A NO20011380L NO 20011380 L NO20011380 L NO 20011380L NO 20011380 A NO20011380 A NO 20011380A NO 20011380 A NO20011380 A NO 20011380A NO 20011380 L NO20011380 L NO 20011380L
Authority
NO
Norway
Prior art keywords
sensor unit
remote sensor
coils
formation
antenna
Prior art date
Application number
NO20011380A
Other languages
Norwegian (no)
Other versions
NO20011380D0 (en
Inventor
Dean M Homan
Steven Baker
Alfred Blaickner
Original Assignee
Schlumberger Holdings
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 Schlumberger Holdings filed Critical Schlumberger Holdings
Publication of NO20011380D0 publication Critical patent/NO20011380D0/en
Publication of NO20011380L publication Critical patent/NO20011380L/en

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
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Et nedhullsredskap omfatter en styrbar antenne innrettet for å påvise belig- genheten av en fjernfølerenhet utplassert i en formasjon, samt å forsyne fjernføl- erenheten med effekt og ta ut formasjonsdata som er samlet opp av fjemføleren- heten. Elektronikk for drift av den styrbare antenne og for å utføre disse arbeids- operasjoner inneholdes også i nedhullsredskapet. Den styrbare antenne omfatter flere spoler. Ved selektivt å regulere størrelsen av det elektriske signal som frem- bringes av hver av spolene, eller ved selektivt å forsterke det signal som produse- res av hver av disse spoler, kan et sammensatt antennestrålingsmaksimum frem- bringes i en hvilken som helst retning i forhold til nedhullsredskapet. Denne styr- bare antenne kan omfatte et sett ortonormale spoler eller et annet spolesett som gjør det mulig å regulere maksimumsretningen for antennestrålingsmønsteret. Det kan videre opprettes flere styrbare antenner som samarbeider med hverandre. Den styrbare antenne kan benyttes for å lokalisere en fjerntliggende følerenhet inne i formasjonen, for å forsyne denne fjerntliggende følerenhet med effekt samt for å ta ut data fra fjernfølerenheten, og alt dette i samsvar med foreliggende opp- finnelse.A downhole tool comprises a controllable antenna arranged to detect the location of a remote sensor unit placed in a formation, and to provide the remote sensor unit with power and extract formation data collected by the remote sensor unit. Electronics for operating the controllable antenna and for performing these work operations are also included in the downhole tool. The controllable antenna comprises several coils. By selectively controlling the magnitude of the electrical signal produced by each of the coils, or by selectively amplifying the signal produced by each of these coils, a composite antenna radiation maximum can be produced in any direction relative to the coils. to the downhole tool. This controllable antenna may comprise a set of orthonormal coils or another coil set which allows the maximum direction of the antenna radiation pattern to be adjusted. Furthermore, several controllable antennas can be created that cooperate with each other. The controllable antenna can be used to locate a remote sensor unit within the formation, to provide this remote sensor unit with power as well as to extract data from the remote sensor unit, and all of this in accordance with the present invention.

NO20011380A 2000-03-20 2001-03-19 Downhole tools that include an electrically controllable antenna for use with a remote sensing device inserted into the formation NO20011380L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52872700A 2000-03-20 2000-03-20

Publications (2)

Publication Number Publication Date
NO20011380D0 NO20011380D0 (en) 2001-03-19
NO20011380L true NO20011380L (en) 2001-09-21

Family

ID=24106904

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20011380A NO20011380L (en) 2000-03-20 2001-03-19 Downhole tools that include an electrically controllable antenna for use with a remote sensing device inserted into the formation

Country Status (5)

Country Link
AU (1) AU754992B2 (en)
CA (1) CA2334525A1 (en)
GB (1) GB2360533B (en)
ID (1) ID29666A (en)
NO (1) NO20011380L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0425008D0 (en) 2004-11-12 2004-12-15 Petrowell Ltd Method and apparatus
US10262168B2 (en) 2007-05-09 2019-04-16 Weatherford Technology Holdings, Llc Antenna for use in a downhole tubular
US8016036B2 (en) * 2007-11-14 2011-09-13 Baker Hughes Incorporated Tagging a formation for use in wellbore related operations
US8646520B2 (en) 2011-03-15 2014-02-11 Baker Hughes Incorporated Precision marking of subsurface locations
WO2016108840A1 (en) * 2014-12-30 2016-07-07 Halliburton Energy Services, Inc. Electromagnetic ranging with azimuthal electromagnetic logging tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US882871A (en) * 1906-10-05 1908-03-24 Bertie Eugene Cassell Windmill.
JP2534193B2 (en) * 1993-05-31 1996-09-11 石油資源開発株式会社 Directional induction logging method and apparatus
US6070662A (en) * 1998-08-18 2000-06-06 Schlumberger Technology Corporation Formation pressure measurement with remote sensors in cased boreholes
US6181138B1 (en) * 1999-02-22 2001-01-30 Halliburton Energy Services, Inc. Directional resistivity measurements for azimuthal proximity detection of bed boundaries

Also Published As

Publication number Publication date
NO20011380D0 (en) 2001-03-19
AU1831601A (en) 2001-09-27
AU754992B2 (en) 2002-11-28
GB0104039D0 (en) 2001-04-04
GB2360533A (en) 2001-09-26
CA2334525A1 (en) 2001-09-20
ID29666A (en) 2001-09-20
GB2360533B (en) 2002-10-16

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application