GB2408432B - Full duplex DMT modulation in wel-logging applications - Google Patents

Full duplex DMT modulation in wel-logging applications

Info

Publication number
GB2408432B
GB2408432B GB0504453A GB0504453A GB2408432B GB 2408432 B GB2408432 B GB 2408432B GB 0504453 A GB0504453 A GB 0504453A GB 0504453 A GB0504453 A GB 0504453A GB 2408432 B GB2408432 B GB 2408432B
Authority
GB
United Kingdom
Prior art keywords
wel
full duplex
dmt modulation
logging applications
duplex dmt
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB0504453A
Other versions
GB2408432A (en
GB0504453D0 (en
Inventor
Raman Viswanathan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
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
Priority claimed from GB0400247A external-priority patent/GB2393364B/en
Publication of GB0504453D0 publication Critical patent/GB0504453D0/en
Publication of GB2408432A publication Critical patent/GB2408432A/en
Application granted granted Critical
Publication of GB2408432B publication Critical patent/GB2408432B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E21B47/12—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)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB0504453A 2001-06-19 2002-06-14 Full duplex DMT modulation in wel-logging applications Expired - Fee Related GB2408432B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29927501P 2001-06-19 2001-06-19
GB0400247A GB2393364B (en) 2001-06-19 2002-06-14 Full duplex dmt modulation in well-logging applications

Publications (3)

Publication Number Publication Date
GB0504453D0 GB0504453D0 (en) 2005-04-06
GB2408432A GB2408432A (en) 2005-05-25
GB2408432B true GB2408432B (en) 2005-07-27

Family

ID=34525061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0504453A Expired - Fee Related GB2408432B (en) 2001-06-19 2002-06-14 Full duplex DMT modulation in wel-logging applications

Country Status (1)

Country Link
GB (1) GB2408432B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8362916B2 (en) * 2009-02-05 2013-01-29 Schlumberger Technology Corporation Methods and systems for borehole telemetry
US10196893B2 (en) 2011-12-29 2019-02-05 Schlumberger Technology Corporation Inter-tool communication flow control in toolbus system of cable telemetry
US9535185B2 (en) 2012-12-04 2017-01-03 Schlumberger Technology Corporation Failure point diagnostics in cable telemetry
US20140152459A1 (en) * 2012-12-04 2014-06-05 Schlumberger Technology Corporation Wellsite System and Method for Multiple Carrier Frequency, Half Duplex Cable Telemetry
US9911323B2 (en) 2012-12-04 2018-03-06 Schlumberger Technology Corporation Toolstring topology mapping in cable telemetry
US9154186B2 (en) 2012-12-04 2015-10-06 Schlumberger Technology Corporation Toolstring communication in cable telemetry
EP3594445A1 (en) * 2018-07-13 2020-01-15 Welltec A/S Downhole wireline communication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682419A (en) * 1995-01-26 1997-10-28 Grube; Gary W. Method and apparatus for providing infrastructure call support
US6044107A (en) * 1996-05-09 2000-03-28 Texas Instruments Incorporated Method for interoperability of a T1E1.4 compliant ADSL modem and a simpler modem
US6052411A (en) * 1998-04-06 2000-04-18 3Com Corporation Idle mode for digital subscriber line
GB2375025A (en) * 2001-02-01 2002-10-30 Halliburton Energy Serv Inc Downhole telemetry system using DMT modulation
EP1258098A1 (en) * 2000-02-01 2002-11-20 Halliburton Energy Services, Inc. High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing
GB2392184A (en) * 2001-03-27 2004-02-25 Halliburton Energy Serv Inc Very high data rate telemetry system for use in a wellbore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682419A (en) * 1995-01-26 1997-10-28 Grube; Gary W. Method and apparatus for providing infrastructure call support
US6044107A (en) * 1996-05-09 2000-03-28 Texas Instruments Incorporated Method for interoperability of a T1E1.4 compliant ADSL modem and a simpler modem
US6052411A (en) * 1998-04-06 2000-04-18 3Com Corporation Idle mode for digital subscriber line
EP1258098A1 (en) * 2000-02-01 2002-11-20 Halliburton Energy Services, Inc. High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing
GB2375025A (en) * 2001-02-01 2002-10-30 Halliburton Energy Serv Inc Downhole telemetry system using DMT modulation
GB2392184A (en) * 2001-03-27 2004-02-25 Halliburton Energy Serv Inc Very high data rate telemetry system for use in a wellbore

Also Published As

Publication number Publication date
GB2408432A (en) 2005-05-25
GB0504453D0 (en) 2005-04-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120614