GB2045918B - Simultaneous thermal neutron decay time and porosity logging system - Google Patents

Simultaneous thermal neutron decay time and porosity logging system

Info

Publication number
GB2045918B
GB2045918B GB7911011A GB7911011A GB2045918B GB 2045918 B GB2045918 B GB 2045918B GB 7911011 A GB7911011 A GB 7911011A GB 7911011 A GB7911011 A GB 7911011A GB 2045918 B GB2045918 B GB 2045918B
Authority
GB
United Kingdom
Prior art keywords
decay time
thermal neutron
logging system
simultaneous thermal
neutron decay
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
GB7911011A
Other versions
GB2045918A (en
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.)
Texaco Development Corp
Original Assignee
Texaco Development 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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB7911011A priority Critical patent/GB2045918B/en
Publication of GB2045918A publication Critical patent/GB2045918A/en
Application granted granted Critical
Publication of GB2045918B publication Critical patent/GB2045918B/en
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
    • G01V5/104—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
    • G01V5/105—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 the neutron source being of the pulsed type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/025—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material using neutrons

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB7911011A 1979-03-29 1979-03-29 Simultaneous thermal neutron decay time and porosity logging system Expired GB2045918B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7911011A GB2045918B (en) 1979-03-29 1979-03-29 Simultaneous thermal neutron decay time and porosity logging system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7911011A GB2045918B (en) 1979-03-29 1979-03-29 Simultaneous thermal neutron decay time and porosity logging system

Publications (2)

Publication Number Publication Date
GB2045918A GB2045918A (en) 1980-11-05
GB2045918B true GB2045918B (en) 1983-03-30

Family

ID=10504206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911011A Expired GB2045918B (en) 1979-03-29 1979-03-29 Simultaneous thermal neutron decay time and porosity logging system

Country Status (1)

Country Link
GB (1) GB2045918B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556793A (en) * 1983-04-07 1985-12-03 Mobil Oil Corporation Epithermal neutron lifetime logging
US4631405A (en) * 1984-12-05 1986-12-23 Halliburton Company Method and apparatus for dual-spaced fast/epithermal neutron porosity measurements
JP3113043B2 (en) * 1992-03-10 2000-11-27 石油公団 Water vapor density measurement method by neutron method
EP2348337B1 (en) * 2010-01-14 2014-04-16 Services Pétroliers Schlumberger Corrected porosity measurements of underground formations

Also Published As

Publication number Publication date
GB2045918A (en) 1980-11-05

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Legal Events

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