NO20100537L - Beskyttelse av en flerstraleantenne - Google Patents
Beskyttelse av en flerstraleantenneInfo
- Publication number
- NO20100537L NO20100537L NO20100537A NO20100537A NO20100537L NO 20100537 L NO20100537 L NO 20100537L NO 20100537 A NO20100537 A NO 20100537A NO 20100537 A NO20100537 A NO 20100537A NO 20100537 L NO20100537 L NO 20100537L
- Authority
- NO
- Norway
- Prior art keywords
- tool body
- antenna
- beam antenna
- protection
- antenna wires
- Prior art date
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
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Oppfinnelsen tilveiebringer en anordning og fremgangsmåte for å estimere én eller flere formasjonsegenskaper i et borehull. Anordningen omfatter en verktøykropp med en longitudinal akse. Verktøykroppen har et antall metallpillarer som er festet til. Eller som er en integrert del av, verktøykroppen. Antennetråder kan plasseres på verktøykroppen mellom pillarene med flere orienteringer for å tilveiebringe en flerstråleantenne. Et isolerende materiale brukes til å dekke antennetrådene. Et materiale med høy magnetisk permeabilitet plasseres mellom antennetrådene og verktøykroppen. Antennen kan konfigureres til å virke som en sender eller som en mottaker i en resistivitetssensor eller en NMR-sensor.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US97852707P | 2007-10-09 | 2007-10-09 | |
US12/239,348 US8330463B2 (en) | 2007-10-09 | 2008-09-26 | Protection of a multidirectional antenna |
PCT/US2008/079281 WO2009082530A2 (en) | 2007-10-09 | 2008-10-09 | Protection of a multidirectional antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20100537L true NO20100537L (no) | 2010-07-08 |
Family
ID=40522715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20100537A NO20100537L (no) | 2007-10-09 | 2010-04-15 | Beskyttelse av en flerstraleantenne |
Country Status (4)
Country | Link |
---|---|
US (1) | US8330463B2 (no) |
BR (1) | BRPI0817856A2 (no) |
NO (1) | NO20100537L (no) |
WO (1) | WO2009082530A2 (no) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8587303B2 (en) * | 2009-05-08 | 2013-11-19 | Baker Hughes Incorporated | Method and apparatus for NMR measurements in underbalanced drilling |
US20110203805A1 (en) * | 2010-02-23 | 2011-08-25 | Baker Hughes Incorporated | Valving Device and Method of Valving |
US8847600B2 (en) * | 2010-03-02 | 2014-09-30 | Baker Hughes Incorporated | Use of autotransformer-like antennas for downhole applications |
US9562428B2 (en) | 2012-02-16 | 2017-02-07 | Baker Hughes Incorporated | System and method to estimate a property in a borehole |
WO2014075190A1 (en) | 2012-11-16 | 2014-05-22 | Evolution Engineering Inc. | Electromagnetic telemetry gap sub assembly with insulating collar |
US9863237B2 (en) * | 2012-11-26 | 2018-01-09 | Baker Hughes, A Ge Company, Llc | Electromagnetic telemetry apparatus and methods for use in wellbore applications |
US9964660B2 (en) | 2013-07-15 | 2018-05-08 | Baker Hughes, A Ge Company, Llc | Electromagnetic telemetry apparatus and methods for use in wellbores |
WO2015072985A1 (en) * | 2013-11-13 | 2015-05-21 | Halliburton Energy Services, Inc. | Dual antenna for circular polarization |
GB2545861B (en) * | 2014-12-30 | 2021-04-07 | Halliburton Energy Services Inc | Combined NMR-resistivity measurement apparatus, systems, and methods |
DE112015005957T5 (de) * | 2015-01-16 | 2017-10-19 | Halliburton Energy Services, Inc. | An Schwerstangen anbringbare Spulenkörperantenne mit Spulen- und Ferritschlitzen |
GB2554309B (en) | 2015-06-26 | 2021-03-31 | Halliburton Energy Services Inc | Antennas for wellbore logging tools and methods of manufacture |
WO2016209273A1 (en) | 2015-06-26 | 2016-12-29 | Halliburton Energy Services, Inc. | Antennas for wellbore logging tools and methods of manufacture |
CN108442926A (zh) * | 2018-06-05 | 2018-08-24 | 北京捷威思特科技有限公司 | 一种近钻头电磁波电阻率加伽玛测井仪 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9308806D0 (en) | 1993-04-28 | 1993-06-09 | Bpb Industries Plc | Induction sonde |
US5530358A (en) * | 1994-01-25 | 1996-06-25 | Baker Hughes, Incorporated | Method and apparatus for measurement-while-drilling utilizing improved antennas |
US5767674A (en) * | 1996-04-17 | 1998-06-16 | Griffin; Douglas D. | Apparatus for protecting a magnetic resonance antenna |
US6466872B1 (en) * | 1999-11-08 | 2002-10-15 | Baker Hughes Incorporated | Method for determination of apparent resistivities of anisotropic reservoirs |
US6838876B2 (en) * | 2002-02-18 | 2005-01-04 | Baker Hughes Incorporated | Slotted NMR antenna cover |
US6727707B2 (en) * | 2002-09-25 | 2004-04-27 | Cbg Corporation | Method and apparatus for a downhole antenna |
EP1642156B1 (en) * | 2003-05-02 | 2020-03-04 | Halliburton Energy Services, Inc. | Systems and methods for nmr logging |
US6957708B2 (en) * | 2003-07-08 | 2005-10-25 | Baker Hughes Incorporated | Electrical imaging in conductive and non-conductive mud |
US7284605B2 (en) * | 2004-09-28 | 2007-10-23 | Schlumberger Technology Corporation | Apparatus and methods for reducing stand-off effects of a downhole tool |
-
2008
- 2008-09-26 US US12/239,348 patent/US8330463B2/en active Active
- 2008-10-09 BR BRPI0817856 patent/BRPI0817856A2/pt not_active IP Right Cessation
- 2008-10-09 WO PCT/US2008/079281 patent/WO2009082530A2/en active Application Filing
-
2010
- 2010-04-15 NO NO20100537A patent/NO20100537L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2009082530A2 (en) | 2009-07-02 |
US8330463B2 (en) | 2012-12-11 |
US20090091327A1 (en) | 2009-04-09 |
BRPI0817856A2 (pt) | 2015-04-07 |
WO2009082530A3 (en) | 2010-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |