GB2083212B - Method for simultaneous measurement of borehole and formation neutron decaytimes employing iterative fitting - Google Patents

Method for simultaneous measurement of borehole and formation neutron decaytimes employing iterative fitting

Info

Publication number
GB2083212B
GB2083212B GB8124932A GB8124932A GB2083212B GB 2083212 B GB2083212 B GB 2083212B GB 8124932 A GB8124932 A GB 8124932A GB 8124932 A GB8124932 A GB 8124932A GB 2083212 B GB2083212 B GB 2083212B
Authority
GB
United Kingdom
Prior art keywords
decaytimes
borehole
simultaneous measurement
iterative fitting
employing iterative
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
GB8124932A
Other versions
GB2083212A (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 GB2083212A publication Critical patent/GB2083212A/en
Application granted granted Critical
Publication of GB2083212B publication Critical patent/GB2083212B/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
GB8124932A 1980-08-28 1981-08-14 Method for simultaneous measurement of borehole and formation neutron decaytimes employing iterative fitting Expired GB2083212B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18215180A 1980-08-28 1980-08-28

Publications (2)

Publication Number Publication Date
GB2083212A GB2083212A (en) 1982-03-17
GB2083212B true GB2083212B (en) 1984-04-18

Family

ID=22667266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8124932A Expired GB2083212B (en) 1980-08-28 1981-08-14 Method for simultaneous measurement of borehole and formation neutron decaytimes employing iterative fitting

Country Status (4)

Country Link
CA (1) CA1162659A (en)
FR (1) FR2489534A1 (en)
GB (1) GB2083212B (en)
NL (1) NL191656C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409481A (en) * 1980-08-28 1983-10-11 Halliburton Company Method for simultaneous measurement of thermal neutron decay components
ES2831850T3 (en) * 2017-05-31 2021-06-09 Aachen Inst For Nuclear Training Gmbh Procedure and device for multi-element analysis based on neutron activation and use
US11408838B2 (en) 2017-05-31 2022-08-09 Aachen Institute For Nuclear Training Gmbh Method and device for multielement analysis on the basis of neutron activation, and use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739171A (en) * 1971-07-19 1973-06-12 Texaco Inc Gamma ray spectroscopy with quantitative analysis
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
NL191656B (en) 1995-08-01
CA1162659A (en) 1984-02-21
NL8103822A (en) 1982-03-16
FR2489534B1 (en) 1984-12-21
GB2083212A (en) 1982-03-17
FR2489534A1 (en) 1982-03-05
NL191656C (en) 1995-12-02

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Legal Events

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

Effective date: 19970814