NO961103L - Fremgangsmåte og apparat for bestemmelse av epitermisk neutron-nedbrytningsgrad - Google Patents

Fremgangsmåte og apparat for bestemmelse av epitermisk neutron-nedbrytningsgrad

Info

Publication number
NO961103L
NO961103L NO961103A NO961103A NO961103L NO 961103 L NO961103 L NO 961103L NO 961103 A NO961103 A NO 961103A NO 961103 A NO961103 A NO 961103A NO 961103 L NO961103 L NO 961103L
Authority
NO
Norway
Prior art keywords
determining
degradation rate
epithermal neutron
neutron degradation
epithermal
Prior art date
Application number
NO961103A
Other languages
English (en)
Other versions
NO961103D0 (no
NO314916B1 (no
Inventor
Medhat W Mickael
Original Assignee
Western Atlas Int 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 Western Atlas Int Inc filed Critical Western Atlas Int Inc
Publication of NO961103D0 publication Critical patent/NO961103D0/no
Publication of NO961103L publication Critical patent/NO961103L/no
Publication of NO314916B1 publication Critical patent/NO314916B1/no

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

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)
  • Measurement Of Radiation (AREA)
NO19961103A 1995-03-23 1996-03-19 Fremgangsmåte og apparat for bestemmelse av epitermisk nöytron-nedbrytningsgrad og som har redusert borehullseffekt NO314916B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/409,268 US5532481A (en) 1995-03-23 1995-03-23 System for measuring epithermal neutron porosity having reduced borehole effect

Publications (3)

Publication Number Publication Date
NO961103D0 NO961103D0 (no) 1996-03-19
NO961103L true NO961103L (no) 1996-09-24
NO314916B1 NO314916B1 (no) 2003-06-10

Family

ID=23619780

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19961103A NO314916B1 (no) 1995-03-23 1996-03-19 Fremgangsmåte og apparat for bestemmelse av epitermisk nöytron-nedbrytningsgrad og som har redusert borehullseffekt

Country Status (4)

Country Link
US (1) US5532481A (no)
CA (1) CA2171231C (no)
GB (1) GB2299165B (no)
NO (1) NO314916B1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352081B (en) * 1999-07-16 2003-11-12 Siemens Plc Apparatus for measuring neutron radiation
US8760657B2 (en) * 2001-04-11 2014-06-24 Gas Sensing Technology Corp In-situ detection and analysis of methane in coal bed methane formations with spectrometers
US7544929B1 (en) 2008-05-13 2009-06-09 Precision Energy Services, Inc. Borehole imaging and standoff determination using neutron measurements
US9031790B2 (en) * 2010-03-23 2015-05-12 Schlumberger Technology Corporation System and method for correction of borehole effects in a neutron porosity measurement
US8972194B2 (en) * 2010-11-08 2015-03-03 Chevron U.S.A. Inc. Method and system for pulse neutron capture sigma inversion
US9052405B2 (en) 2013-05-15 2015-06-09 Schlumberger Technology Corporation Borehole fluid effect correction for pulsed neutron porosity measurements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487211A (en) * 1965-06-02 1969-12-30 Dresser Ind Method and apparatus for radioactivity well logging utilizing the decline of the epithermal neutron population
US4760252A (en) * 1983-06-28 1988-07-26 Schlumberger Technology Corporation Well logging tool with an accelerator neutron source
EP0269620B1 (en) * 1986-06-05 1991-09-11 Societe De Prospection Electrique Schlumberger A well logging tool with an accelerator neutron source
US4910397A (en) * 1989-01-10 1990-03-20 Mobil Oil Corporation Pulsed neutron porosity logging
US5051581A (en) * 1990-05-01 1991-09-24 Schlumberger Technology Corporation Method and apparatus for epithermal neutron porosity well logging
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
US5528030A (en) * 1995-03-17 1996-06-18 Western Atlas International, Inc. System for determining gas saturation of a formation and a wellbore through casing

Also Published As

Publication number Publication date
GB2299165B (en) 1999-03-24
CA2171231A1 (en) 1996-09-24
GB2299165A (en) 1996-09-25
US5532481A (en) 1996-07-02
NO961103D0 (no) 1996-03-19
GB9605917D0 (en) 1996-05-22
NO314916B1 (no) 2003-06-10
CA2171231C (en) 1999-09-14

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