NL191656B - A method of measuring decay times of thermal neutrons in substances using a rapid neutron source in a well borehole. - Google Patents
A method of measuring decay times of thermal neutrons in substances using a rapid neutron source in a well borehole.Info
- Publication number
- NL191656B NL191656B NL8103822A NL8103822A NL191656B NL 191656 B NL191656 B NL 191656B NL 8103822 A NL8103822 A NL 8103822A NL 8103822 A NL8103822 A NL 8103822A NL 191656 B NL191656 B NL 191656B
- Authority
- NL
- Netherlands
- Prior art keywords
- substances
- neutron source
- thermal neutrons
- well borehole
- decay times
- Prior art date
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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18215180A | 1980-08-28 | 1980-08-28 | |
| US18215180 | 1980-08-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL8103822A NL8103822A (en) | 1982-03-16 |
| NL191656B true NL191656B (en) | 1995-08-01 |
| NL191656C NL191656C (en) | 1995-12-02 |
Family
ID=22667266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8103822A NL191656C (en) | 1980-08-28 | 1981-08-14 | Method of measuring decay times of thermal neutrons in substances using a well measuring probe and a fast neutron source in a well borehole. |
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)
| 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 |
| BR112019025088B1 (en) | 2017-05-31 | 2023-12-19 | Aachen Institute For Nuclear Training Gmbh | METHOD AND DEVICE FOR THE ANALYSIS OF MULTIPLE ELEMENTS BASED ON NEUTRON ACTIVATION AND USE |
| SI3410104T1 (en) * | 2017-05-31 | 2020-12-31 | Aachen Institute fur Nuclear Training GmbH | Method and device for multi-element analysis based on neutron activation and use |
Family Cites Families (3)
| 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 |
-
1981
- 1981-07-21 CA CA000382132A patent/CA1162659A/en not_active Expired
- 1981-08-14 NL NL8103822A patent/NL191656C/en not_active IP Right Cessation
- 1981-08-14 GB GB8124932A patent/GB2083212B/en not_active Expired
- 1981-08-28 FR FR8116483A patent/FR2489534A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2489534A1 (en) | 1982-03-05 |
| GB2083212B (en) | 1984-04-18 |
| CA1162659A (en) | 1984-02-21 |
| FR2489534B1 (en) | 1984-12-21 |
| NL8103822A (en) | 1982-03-16 |
| GB2083212A (en) | 1982-03-17 |
| NL191656C (en) | 1995-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| V4 | Lapsed because of reaching the maxim lifetime of a patent |
Free format text: 20010814 |