DE3474600D1 - System for subsurface neutron logging - Google Patents

System for subsurface neutron logging

Info

Publication number
DE3474600D1
DE3474600D1 DE8484302029T DE3474600T DE3474600D1 DE 3474600 D1 DE3474600 D1 DE 3474600D1 DE 8484302029 T DE8484302029 T DE 8484302029T DE 3474600 T DE3474600 T DE 3474600T DE 3474600 D1 DE3474600 D1 DE 3474600D1
Authority
DE
Germany
Prior art keywords
subsurface
neutron logging
neutron
logging
subsurface neutron
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
Application number
DE8484302029T
Other languages
English (en)
Inventor
Linus Scott Allen
William Raymond Mills
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
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 Mobil Oil Corp filed Critical Mobil Oil Corp
Application granted granted Critical
Publication of DE3474600D1 publication Critical patent/DE3474600D1/de
Expired 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
    • G01V5/107—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
    • G01V5/108—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 the neutron source being of the pulsed type

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)
  • Measurement Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
DE8484302029T 1983-04-07 1984-03-27 System for subsurface neutron logging Expired DE3474600D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/482,751 US4556793A (en) 1983-04-07 1983-04-07 Epithermal neutron lifetime logging

Publications (1)

Publication Number Publication Date
DE3474600D1 true DE3474600D1 (en) 1988-11-17

Family

ID=23917309

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484302029T Expired DE3474600D1 (en) 1983-04-07 1984-03-27 System for subsurface neutron logging

Country Status (5)

Country Link
US (1) US4556793A (de)
EP (1) EP0127931B1 (de)
CA (1) CA1216377A (de)
DE (1) DE3474600D1 (de)
NO (1) NO158388C (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760252A (en) * 1983-06-28 1988-07-26 Schlumberger Technology Corporation Well logging tool with an accelerator neutron source
US4910397A (en) * 1989-01-10 1990-03-20 Mobil Oil Corporation Pulsed neutron porosity logging
JPH04233499A (ja) * 1990-10-01 1992-08-21 Westinghouse Electric Corp <We> 炉心外型中性子束・出力レベル検出器アセンブリ
US5068531A (en) * 1991-04-04 1991-11-26 Mobil Oil Corporation Method and apparatus for producing a porosity log of a subsurface formation corrected for detector standoff
US5345077A (en) * 1991-07-24 1994-09-06 Mobil Oil Corporation Method and apparatus for producing a porosity log of a subsurface formation corrected for detector standoff
US5300770A (en) * 1992-08-10 1994-04-05 Mobil Oil Corporation Apparatus for producing a porosity log of a subsurface formation corrected for detector standoff
EP0677754B1 (de) * 1994-04-12 2004-12-15 Schlumberger Limited Bohrlochvorrichtung mit einer Beschleunigerneutronenquelle
US5581079A (en) * 1995-02-24 1996-12-03 Western Atlas International, Inc. Epithermal neutron detector having enhanced efficiency
GB2374976B (en) * 2001-04-26 2005-06-22 Bnfl Improvements in and relating to neutron detectors
US9329303B2 (en) 2012-10-04 2016-05-03 Baker Hughes Incorporated Single detector detection and characterization of thermal and epithermal neutrons from an earth formation
US20150241577A1 (en) * 2013-12-19 2015-08-27 Schlumberger Technology Corporation Combined Epithermal And Thermal Neutron Detector And Its Application To Well Logging Instruments

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680201A (en) * 1950-06-05 1954-06-01 Serge A Scherbatskoy Neutron well logging
US2920204A (en) * 1956-09-04 1960-01-05 Well Surveys Inc Apparatus for simultaneous detection of thermal and epithermal neutrons
US3102198A (en) * 1961-11-16 1963-08-27 Socony Mobil Oil Co Inc Sensitive low voltage proportional counter for neutron detection containing he3 at superatmospheric pressure
US4005290A (en) * 1975-06-25 1977-01-25 Mobil Oil Corporation Neutron-neutron logging
US4097737A (en) * 1976-11-01 1978-06-27 Mobil Oil Corporation Epithermal die-away porosity logging
US4152590A (en) * 1977-05-19 1979-05-01 Texaco Inc. Simultaneous thermal neutron decay time and porosity logging system
US4241253A (en) * 1978-11-24 1980-12-23 Mobil Oil Corporation Epithermal neutron detector
GB2045918B (en) * 1979-03-29 1983-03-30 Texaco Development Corp Simultaneous thermal neutron decay time and porosity logging system

Also Published As

Publication number Publication date
NO158388B (no) 1988-05-24
CA1216377A (en) 1987-01-06
EP0127931B1 (de) 1988-10-12
NO841371L (no) 1984-10-08
US4556793A (en) 1985-12-03
EP0127931A1 (de) 1984-12-12
NO158388C (no) 1988-08-31

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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