GB2397891B - Filters for cancelling multiple noise sources in borehole electromagnetic telemetry system - Google Patents

Filters for cancelling multiple noise sources in borehole electromagnetic telemetry system

Info

Publication number
GB2397891B
GB2397891B GB0403376A GB0403376A GB2397891B GB 2397891 B GB2397891 B GB 2397891B GB 0403376 A GB0403376 A GB 0403376A GB 0403376 A GB0403376 A GB 0403376A GB 2397891 B GB2397891 B GB 2397891B
Authority
GB
United Kingdom
Prior art keywords
filters
telemetry system
noise sources
multiple noise
electromagnetic telemetry
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 - Lifetime
Application number
GB0403376A
Other versions
GB0403376D0 (en
GB2397891A (en
Inventor
Wallace R Gardner
Paul Rodney
Harrison Smith
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.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services 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
Priority claimed from US09/923,185 external-priority patent/US6781521B1/en
Priority claimed from US09/923,205 external-priority patent/US6657597B2/en
Application filed by Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Publication of GB0403376D0 publication Critical patent/GB0403376D0/en
Publication of GB2397891A publication Critical patent/GB2397891A/en
Application granted granted Critical
Publication of GB2397891B publication Critical patent/GB2397891B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
    • G01V11/002—Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB0403376A 2001-08-06 2002-08-06 Filters for cancelling multiple noise sources in borehole electromagnetic telemetry system Expired - Lifetime GB2397891B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/923,185 US6781521B1 (en) 2001-08-06 2001-08-06 Filters for canceling multiple noise sources in borehole electromagnetic telemetry system
US09/923,205 US6657597B2 (en) 2001-08-06 2001-08-06 Directional signal and noise sensors for borehole electromagnetic telemetry system
PCT/US2002/025074 WO2003013215A2 (en) 2001-08-06 2002-08-06 Filters for canceling multiple noise sources in borehole electromagnetic telemetry system

Publications (3)

Publication Number Publication Date
GB0403376D0 GB0403376D0 (en) 2004-03-17
GB2397891A GB2397891A (en) 2004-08-04
GB2397891B true GB2397891B (en) 2005-07-06

Family

ID=34681759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0403376A Expired - Lifetime GB2397891B (en) 2001-08-06 2002-08-06 Filters for cancelling multiple noise sources in borehole electromagnetic telemetry system

Country Status (1)

Country Link
GB (1) GB2397891B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980682A (en) * 1989-07-31 1990-12-25 Atlantic Richfield Company Method of reducing noise in a borehole electromagnetic telemetry system
US4992787A (en) * 1988-09-20 1991-02-12 Teleco Oilfield Services Inc. Method and apparatus for remote signal entry into measurement while drilling system
US5467083A (en) * 1993-08-26 1995-11-14 Electric Power Research Institute Wireless downhole electromagnetic data transmission system and method
US6285190B1 (en) * 1999-06-01 2001-09-04 Digital Control Incorporated Skin depth compensation in underground boring applications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992787A (en) * 1988-09-20 1991-02-12 Teleco Oilfield Services Inc. Method and apparatus for remote signal entry into measurement while drilling system
US4980682A (en) * 1989-07-31 1990-12-25 Atlantic Richfield Company Method of reducing noise in a borehole electromagnetic telemetry system
US5467083A (en) * 1993-08-26 1995-11-14 Electric Power Research Institute Wireless downhole electromagnetic data transmission system and method
US6285190B1 (en) * 1999-06-01 2001-09-04 Digital Control Incorporated Skin depth compensation in underground boring applications

Also Published As

Publication number Publication date
GB0403376D0 (en) 2004-03-17
GB2397891A (en) 2004-08-04

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)
ERR Erratum

Free format text: APPLICATIONS TERMINATED BEFORE PUBLICATION UNDER SECTION 16(1) PATENT APPLICATION GB0403376.7 WAS ERRONEOUSLY ANNOUNCED AS TERMINATED BEFORE PUBLICATION IN THE PDJ DATED 20040609.

PE20 Patent expired after termination of 20 years

Expiry date: 20220805