FR2440004A1 - Procede et dispositif pour la mesure de caracteristiques de neutrons thermiques - Google Patents
Procede et dispositif pour la mesure de caracteristiques de neutrons thermiquesInfo
- Publication number
- FR2440004A1 FR2440004A1 FR7926185A FR7926185A FR2440004A1 FR 2440004 A1 FR2440004 A1 FR 2440004A1 FR 7926185 A FR7926185 A FR 7926185A FR 7926185 A FR7926185 A FR 7926185A FR 2440004 A1 FR2440004 A1 FR 2440004A1
- Authority
- FR
- France
- Prior art keywords
- neutron
- thermal neutrons
- burst
- gates
- formation
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 abstract 1
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
- G01V5/108—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 the neutron source being of the pulsed type
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)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
PROCEDE POUR DETECTER LA DECROISSANCE DANS LE TEMPS DE LA POPULATION DE NEUTRONS THERMIQUES DANS UNE FORMATION TERRESTRE, CONSISTANT A IRRADIER CETTE FORMATION AU MOYEN D'UNE RAFALE DE NEUTRONS RAPIDES; DETECTER ENSUITE DES INDICATIONS DE LA CONCENTRATION EN NEUTRONS ET EN FORMER DES SIGNAUX REPRESENTATIFS; ET TRANSMETTRE CES SIGNAUX DURANT UNE SEQUENCE DE PORTES TEMPORELLES APPARAISSANT AVEC UN CERTAIN RETARD APRES LA FIN DE LA RAFALE DE NEUTRONS. LA TRANSMISSION DE SIGNAUX EST COMMANDEE EN FONCTION DES INDICATIONS ANTERIEURES DE LA CONCENTRATION EN NEUTRONS, DE MANIERE A REGLER LA DUREE DE CHACUNE DES PORTES TEMPORELLES A L'AIDE D'UN FACTEUR D'ECHELLE COMMUN SELECTIONNE PARMI UN NOMBRE FINI DE VALEURS DE FACTEURS D'ECHELLE.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/955,176 US4224516A (en) | 1978-10-26 | 1978-10-26 | Methods and apparatus for measuring thermal neutron decay characteristics of earth formations |
US05/955,175 US4223218A (en) | 1978-10-26 | 1978-10-26 | Methods and apparatus for optimizing measurements of thermal neutron decay characteristics |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2440004A1 true FR2440004A1 (fr) | 1980-05-23 |
FR2440004B1 FR2440004B1 (fr) | 1984-12-21 |
Family
ID=27130364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7926185A Granted FR2440004A1 (fr) | 1978-10-26 | 1979-10-22 | Procede et dispositif pour la mesure de caracteristiques de neutrons thermiques |
Country Status (11)
Country | Link |
---|---|
AU (1) | AU532895B2 (fr) |
DE (1) | DE2941535A1 (fr) |
EG (1) | EG14646A (fr) |
ES (1) | ES485366A0 (fr) |
FR (1) | FR2440004A1 (fr) |
GB (4) | GB2036303B (fr) |
IE (1) | IE49620B1 (fr) |
IT (1) | IT1125588B (fr) |
MY (1) | MY8500178A (fr) |
NL (1) | NL7907391A (fr) |
NO (1) | NO793185L (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2489532A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Dispositif de mesure simultanee des durees de vie des neutrons dans un sondage et dans les formations de terrain environnantes |
FR2489533A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Procede de mesure simultanee des durees de vie des neutrons dans un sondage et les formations de terrain environnantes |
FR2489534A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Procede de mesure simultanee des durees de vie des neutrons dans un sondage et dans des formations de terrain employant une technique d'identification iterative |
FR2513386A1 (fr) * | 1981-09-14 | 1983-03-25 | Schlumberger Prospection | Procede et dispositif de correction de diagraphies nucleaires |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8331914D0 (en) * | 1983-11-30 | 1984-01-04 | Atomic Energy Authority Uk | Inspection of buried pipelines |
US4712007A (en) * | 1985-04-01 | 1987-12-08 | S.I.E., Inc. | Pulsed neutron logging method using cumulative count curves |
CN115788421B (zh) * | 2023-02-14 | 2023-05-09 | 山东交通学院 | 一种集成式自然γ能谱测井仪 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL70135C (fr) * | 1946-12-04 | 1952-01-15 | Philips Nv | |
US3566116A (en) * | 1966-11-08 | 1971-02-23 | Schlumberger Technology Corp | Method and apparatus for measuring neutron characteristics of a material surrounding a well bore |
US3379882A (en) * | 1967-03-16 | 1968-04-23 | Dresser Ind | Method and apparatus for neutron well logging based on the lifetime of neutrons in the formations |
US3890501A (en) * | 1973-05-01 | 1975-06-17 | Schlumberger Technology Corp | Neutron logging reliability techniques and apparatus |
-
1979
- 1979-09-28 IE IE1847/79A patent/IE49620B1/en unknown
- 1979-10-04 NO NO793185A patent/NO793185L/no unknown
- 1979-10-05 NL NL7907391A patent/NL7907391A/nl not_active Application Discontinuation
- 1979-10-08 AU AU51555/79A patent/AU532895B2/en not_active Ceased
- 1979-10-12 GB GB7935429A patent/GB2036303B/en not_active Expired
- 1979-10-13 DE DE19792941535 patent/DE2941535A1/de not_active Withdrawn
- 1979-10-22 FR FR7926185A patent/FR2440004A1/fr active Granted
- 1979-10-23 EG EG79645A patent/EG14646A/xx active
- 1979-10-24 IT IT26758/79A patent/IT1125588B/it active
- 1979-10-25 ES ES485366A patent/ES485366A0/es active Granted
-
1982
- 1982-10-08 GB GB08228823A patent/GB2113385B/en not_active Expired
- 1982-10-08 GB GB08228890A patent/GB2113387B/en not_active Expired
- 1982-10-08 GB GB08228889A patent/GB2113386B/en not_active Expired
-
1985
- 1985-12-30 MY MY178/85A patent/MY8500178A/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2489532A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Dispositif de mesure simultanee des durees de vie des neutrons dans un sondage et dans les formations de terrain environnantes |
FR2489533A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Procede de mesure simultanee des durees de vie des neutrons dans un sondage et les formations de terrain environnantes |
FR2489534A1 (fr) * | 1980-08-28 | 1982-03-05 | Halliburton Co | Procede de mesure simultanee des durees de vie des neutrons dans un sondage et dans des formations de terrain employant une technique d'identification iterative |
FR2513386A1 (fr) * | 1981-09-14 | 1983-03-25 | Schlumberger Prospection | Procede et dispositif de correction de diagraphies nucleaires |
Also Published As
Publication number | Publication date |
---|---|
MY8500178A (en) | 1985-12-31 |
GB2036303A (en) | 1980-06-25 |
NL7907391A (nl) | 1980-04-29 |
AU5155579A (en) | 1980-05-01 |
GB2113385B (en) | 1983-12-21 |
GB2113385A (en) | 1983-08-03 |
FR2440004B1 (fr) | 1984-12-21 |
GB2113386B (en) | 1983-12-21 |
AU532895B2 (en) | 1983-10-20 |
NO793185L (no) | 1980-04-29 |
IT7926758A0 (it) | 1979-10-24 |
IE791847L (en) | 1980-04-26 |
ES8103385A1 (es) | 1981-02-16 |
EG14646A (en) | 1985-03-31 |
GB2036303B (en) | 1983-08-17 |
IE49620B1 (en) | 1985-11-13 |
GB2113387A (en) | 1983-08-03 |
GB2113386A (en) | 1983-08-03 |
GB2113387B (en) | 1983-12-21 |
IT1125588B (it) | 1986-05-14 |
DE2941535A1 (de) | 1980-05-08 |
ES485366A0 (es) | 1981-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |