DE69014369D1 - Verfahren und Gerät zur Zerfallsbestimmung epithermischer Neutronen. - Google Patents

Verfahren und Gerät zur Zerfallsbestimmung epithermischer Neutronen.

Info

Publication number
DE69014369D1
DE69014369D1 DE69014369T DE69014369T DE69014369D1 DE 69014369 D1 DE69014369 D1 DE 69014369D1 DE 69014369 T DE69014369 T DE 69014369T DE 69014369 T DE69014369 T DE 69014369T DE 69014369 D1 DE69014369 D1 DE 69014369D1
Authority
DE
Germany
Prior art keywords
decay
determining
epithermal neutrons
epithermal
neutrons
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
DE69014369T
Other languages
English (en)
Other versions
DE69014369T2 (de
Inventor
William B Nelligan
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.)
Schlumberger Technology BV
Original Assignee
Schlumberger Technology BV
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 Schlumberger Technology BV filed Critical Schlumberger Technology BV
Publication of DE69014369D1 publication Critical patent/DE69014369D1/de
Application granted granted Critical
Publication of DE69014369T2 publication Critical patent/DE69014369T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/104—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting secondary Y-rays as well as reflected or back-scattered neutrons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/107—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
DE69014369T 1989-03-23 1990-03-22 Verfahren und Gerät zur Zerfallsbestimmung epithermischer Neutronen. Expired - Fee Related DE69014369T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/327,854 US4973839A (en) 1989-03-23 1989-03-23 Method and apparatus for epithermal neutron decay logging

Publications (2)

Publication Number Publication Date
DE69014369D1 true DE69014369D1 (de) 1995-01-12
DE69014369T2 DE69014369T2 (de) 1995-06-22

Family

ID=23278365

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69014369T Expired - Fee Related DE69014369T2 (de) 1989-03-23 1990-03-22 Verfahren und Gerät zur Zerfallsbestimmung epithermischer Neutronen.

Country Status (5)

Country Link
US (1) US4973839A (de)
EP (1) EP0389371B1 (de)
AU (1) AU631621B2 (de)
DE (1) DE69014369T2 (de)
NO (1) NO302448B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349184A (en) * 1993-01-21 1994-09-20 Schlumberger Technology Corporation Method and apparatus for reducing matrix density effects on porosity measurements during epithermal neutron porosity well logging
US5581079A (en) * 1995-02-24 1996-12-03 Western Atlas International, Inc. Epithermal neutron detector having enhanced efficiency
US6894274B2 (en) * 2002-12-11 2005-05-17 Pathfinder Energy Services, Inc. Estimation of formation porosity using water measurement
WO2006119080A2 (en) * 2005-04-29 2006-11-09 Larsen Lewis G Apparatus and method for generation of ultra low momentum neutrons
US9897719B2 (en) * 2009-05-22 2018-02-20 Schlumberger Technology Corporation Optimization of neutron-gamma tools for inelastic-gamma ray logging
US20110024613A1 (en) * 2009-06-29 2011-02-03 Baker Hughes Incorporated Materials for use as structural neutron moderators in well logging tools
WO2012027106A2 (en) * 2010-08-26 2012-03-01 Smith International, Inc. Method for measuring subterranean formation density using a neutron generator
CN112814667B (zh) * 2021-01-05 2023-07-14 中海石油(中国)有限公司 基于热中子测井计数率比值评价致密气层含水性的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991364A (en) * 1954-07-08 1961-07-04 Schlumberger Well Surv Corp Well logging
US3497692A (en) * 1965-03-09 1970-02-24 Mobil Oil Corp Detection of chemical binding of hydrogen
US3546512A (en) * 1967-02-13 1970-12-08 Schlumberger Technology Corp Neutron generator including an ion source with a massive ferromagnetic probe electrode and a permanent magnet-electrode
US4283624A (en) * 1979-06-25 1981-08-11 Mobil Oil Corporation Epithermal neutron decay logging
US4266126A (en) * 1979-06-25 1981-05-05 Mobil Oil Corporation Pulsed radiation decay logging
US4302669A (en) * 1979-07-09 1981-11-24 Mobil Oil Corporation Neutron thermalization time logging
US4581532A (en) * 1984-07-06 1986-04-08 Mobil Oil Corporation Directional epithermal neutron detector
ATE67318T1 (de) * 1986-06-05 1991-09-15 Schlumberger Ltd Bohrlochvorrichtung mit einer beschleunigerneutronenquelle.

Also Published As

Publication number Publication date
EP0389371A3 (de) 1992-12-09
AU631621B2 (en) 1992-12-03
NO901045L (no) 1990-09-24
DE69014369T2 (de) 1995-06-22
EP0389371B1 (de) 1994-11-30
NO901045D0 (no) 1990-03-06
US4973839A (en) 1990-11-27
EP0389371A2 (de) 1990-09-26
AU5210490A (en) 1990-09-27
NO302448B1 (no) 1998-03-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee