BRPI0817856A2 - Proteção de uma antena multidirecional - Google Patents

Proteção de uma antena multidirecional

Info

Publication number
BRPI0817856A2
BRPI0817856A2 BRPI0817856A BRPI0817856A2 BR PI0817856 A2 BRPI0817856 A2 BR PI0817856A2 BR PI0817856 A BRPI0817856 A BR PI0817856A BR PI0817856 A2 BRPI0817856 A2 BR PI0817856A2
Authority
BR
Brazil
Prior art keywords
protection
directional antenna
directional
antenna
Prior art date
Application number
Other languages
English (en)
Inventor
Martin Blanz
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of BRPI0817856A2 publication Critical patent/BRPI0817856A2/pt

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)
BRPI0817856 2007-10-09 2008-10-09 Proteção de uma antena multidirecional BRPI0817856A2 (pt)

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
BRPI0817856A2 true BRPI0817856A2 (pt) 2015-04-07

Family

ID=40522715

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0817856 BRPI0817856A2 (pt) 2007-10-09 2008-10-09 Proteção de uma antena multidirecional

Country Status (4)

Country Link
US (1) US8330463B2 (pt)
BR (1) BRPI0817856A2 (pt)
NO (1) NO20100537L (pt)
WO (1) WO2009082530A2 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO2009082530A2 (en) 2009-07-02
US8330463B2 (en) 2012-12-11
NO20100537L (no) 2010-07-08
US20090091327A1 (en) 2009-04-09
WO2009082530A3 (en) 2010-10-21

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.