GB2083211B - Method for simultaneous measurement of borehole and formation neutron decaytimes - Google Patents

Method for simultaneous measurement of borehole and formation neutron decaytimes

Info

Publication number
GB2083211B
GB2083211B GB8124931A GB8124931A GB2083211B GB 2083211 B GB2083211 B GB 2083211B GB 8124931 A GB8124931 A GB 8124931A GB 8124931 A GB8124931 A GB 8124931A GB 2083211 B GB2083211 B GB 2083211B
Authority
GB
United Kingdom
Prior art keywords
decaytimes
borehole
simultaneous measurement
formation neutron
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
GB8124931A
Other versions
GB2083211A (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.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Publication of GB2083211A publication Critical patent/GB2083211A/en
Application granted granted Critical
Publication of GB2083211B publication Critical patent/GB2083211B/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 nuclear radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of nuclear 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 nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/101—Prospecting or detecting by the use of nuclear 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 the secondary Y-rays produced in the surrounding layers of the bore hole
    • G01V5/102—Prospecting or detecting by the use of nuclear 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 the secondary Y-rays produced in the surrounding layers of the bore hole 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
    • G01N23/22—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 measuring secondary emission from the material
    • G01N23/221—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 measuring secondary emission from the material by activation analysis
    • G01N23/222—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 measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/074—Investigating materials by wave or particle radiation secondary emission activation analysis
    • G01N2223/0745—Investigating materials by wave or particle radiation secondary emission activation analysis neutron-gamma activation analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/616—Specific applications or type of materials earth materials
GB8124931A 1980-08-28 1981-08-14 Method for simultaneous measurement of borehole and formation neutron decaytimes Expired GB2083211B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18217180A 1980-08-28 1980-08-28

Publications (2)

Publication Number Publication Date
GB2083211A GB2083211A (en) 1982-03-17
GB2083211B true GB2083211B (en) 1984-04-11

Family

ID=22667332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8124931A Expired GB2083211B (en) 1980-08-28 1981-08-14 Method for simultaneous measurement of borehole and formation neutron decaytimes

Country Status (3)

Country Link
CA (1) CA1162660A (en)
FR (1) FR2489533A1 (en)
GB (1) GB2083211B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1225469A (en) * 1983-06-22 1987-08-11 Mobil Oil Corporation Accelerator-type neutron source and a method of controlling the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133195A (en) * 1958-12-05 1964-05-12 California Research Corp Neutron slowing down and absorption logging method
US3705304A (en) * 1967-05-31 1972-12-05 Dresser Ind Pulsed neutron well logging apparatus having means to vary the neutron generator pulse repetition rate
US4152590A (en) * 1977-05-19 1979-05-01 Texaco Inc. Simultaneous thermal neutron decay time and porosity logging system
IE49620B1 (en) * 1978-10-26 1985-11-13 Schlumberger Ltd Method and apparatus for measuring thermal neutron characteristics

Also Published As

Publication number Publication date
GB2083211A (en) 1982-03-17
CA1162660A (en) 1984-02-21
FR2489533A1 (en) 1982-03-05
FR2489533B1 (en) 1984-12-21

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20010813