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 formationInfo
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 4
- 230000005855 radiation Effects 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
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.
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)
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)
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 |
-
2001
- 2001-02-06 AU AU18316/01A patent/AU754992B2/en not_active Ceased
- 2001-02-08 CA CA002334525A patent/CA2334525A1/en not_active Abandoned
- 2001-02-19 GB GB0104039A patent/GB2360533B/en not_active Expired - Fee Related
- 2001-02-28 ID IDP20010186D patent/ID29666A/en unknown
- 2001-03-19 NO NO20011380A patent/NO20011380L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB2360533A (en) | 2001-09-26 |
ID29666A (en) | 2001-09-20 |
GB0104039D0 (en) | 2001-04-04 |
CA2334525A1 (en) | 2001-09-20 |
GB2360533B (en) | 2002-10-16 |
AU1831601A (en) | 2001-09-27 |
AU754992B2 (en) | 2002-11-28 |
NO20011380D0 (en) | 2001-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |