DK43688D0 - Borehulsloggevaerktoej med en acceleratorneutronkilde - Google Patents
Borehulsloggevaerktoej med en acceleratorneutronkildeInfo
- Publication number
- DK43688D0 DK43688D0 DK043688A DK43688A DK43688D0 DK 43688 D0 DK43688 D0 DK 43688D0 DK 043688 A DK043688 A DK 043688A DK 43688 A DK43688 A DK 43688A DK 43688 D0 DK43688 D0 DK 43688D0
- Authority
- DK
- Denmark
- Prior art keywords
- neutron
- monitor
- neutron source
- source
- accelerator
- Prior art date
Links
- 230000005251 gamma ray Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000001228 spectrum Methods 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
- G01V5/101—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 the secondary Y-rays produced in the surrounding layers of the bore hole
-
- 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
-
- 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
-
- 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
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)
- Geophysics And Detection Of Objects (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1986/001227 WO1987007733A1 (en) | 1986-06-05 | 1986-06-05 | A well logging tool with an accelerator neutron source |
Publications (1)
Publication Number | Publication Date |
---|---|
DK43688D0 true DK43688D0 (da) | 1988-01-28 |
Family
ID=22195543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK043688A DK43688D0 (da) | 1986-06-05 | 1988-01-28 | Borehulsloggevaerktoej med en acceleratorneutronkilde |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP0269620B1 (de) |
AT (1) | ATE67318T1 (de) |
AU (1) | AU593004B2 (de) |
DE (1) | DE3681454D1 (de) |
DK (1) | DK43688D0 (de) |
NO (1) | NO171136C (de) |
WO (1) | WO1987007733A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4972082A (en) * | 1989-03-16 | 1990-11-20 | Schlumberger Technology Corporation | Methods and apparatus for epithermal neutron logging |
US4973839A (en) * | 1989-03-23 | 1990-11-27 | Schlumberger Technology Corporation | Method and apparatus for epithermal neutron decay logging |
US5051581A (en) * | 1990-05-01 | 1991-09-24 | Schlumberger Technology Corporation | Method and apparatus for epithermal neutron porosity well logging |
EP0677754B1 (de) * | 1994-04-12 | 2004-12-15 | Schlumberger Limited | Bohrlochvorrichtung mit einer Beschleunigerneutronenquelle |
DE4423780A1 (de) * | 1994-06-30 | 1996-01-04 | Klaus Dr Buckup | Fokussierhülle für Neutronendetektoren |
US5539225A (en) * | 1994-09-16 | 1996-07-23 | Schlumberger Technology Corporation | Accelerator-based methods and apparatus for measurement-while-drilling |
US5581079A (en) * | 1995-02-24 | 1996-12-03 | Western Atlas International, Inc. | Epithermal neutron detector having enhanced efficiency |
US5532481A (en) * | 1995-03-23 | 1996-07-02 | Western Atlas International, Inc. | System for measuring epithermal neutron porosity having reduced borehole effect |
US5789752A (en) * | 1996-05-22 | 1998-08-04 | Western Atlas International, Inc. | Thermal neutron porosity measurement apparatus and method using an accelerator type high-energy neutron source |
US6495837B2 (en) | 2001-03-14 | 2002-12-17 | Computalog U.S.A, Inc. | Geometrically optimized fast neutron detector |
US6639210B2 (en) | 2001-03-14 | 2003-10-28 | Computalog U.S.A., Inc. | Geometrically optimized fast neutron detector |
US6566657B2 (en) | 2001-03-14 | 2003-05-20 | Richard C. Odom | Geometrically optimized fast neutron detector |
GB0110208D0 (en) * | 2001-04-26 | 2001-06-20 | British Nuclear Fuels Plc | Improvements in and relating to detectors |
GB2374976B (en) * | 2001-04-26 | 2005-06-22 | Bnfl | Improvements in and relating to neutron detectors |
US6754586B1 (en) * | 2003-03-28 | 2004-06-22 | Schlumberger Technology Corporation | Apparatus and methods for monitoring output from pulsed neutron sources |
US8759750B2 (en) | 2008-11-18 | 2014-06-24 | Schlumberger Technology Corporation | Neutron-generator-based thermal neutron porosity device with high porosity sensitivity |
US9372277B2 (en) | 2010-04-21 | 2016-06-21 | Schlumberger Technology Corporation | Neutron porosity downhole tool with improved precision and reduced lithology effects |
WO2015095714A1 (en) * | 2013-12-19 | 2015-06-25 | Schlumberger Canada Limited | Electrically operated radiation source operating power, reliability and life management systems and methods |
WO2017086910A1 (en) | 2015-11-16 | 2017-05-26 | Halliburton Energy Services, Inc. | High output accelerator neutron source |
US11733421B2 (en) | 2021-08-31 | 2023-08-22 | China Petroleum & Chemical Corporation | Method for obtaining near-wellbore true borehole sigma and true formation sigma by using a nuclear logging tool during oil and gas exploration |
US11703611B2 (en) | 2021-09-16 | 2023-07-18 | China Petroleum & Chemical Corporation | Computer-implemented method of using a non-transitory computer readable memory device with a pre programmed neural network and a trained neural network computer program product for obtaining a true borehole sigma and a true formation sigma |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032658A (en) * | 1957-01-22 | 1962-05-01 | Well Surveys Inc | Radiation detectors |
US3688117A (en) * | 1970-05-18 | 1972-08-29 | Mobil Oil Corp | Method of and system for indirectly monitoring the output of a pulsed neutron source |
US3823319A (en) * | 1970-08-21 | 1974-07-09 | Schlumberger Technology Corp | Porosity determination with mudcake correction |
US4268749A (en) * | 1978-10-16 | 1981-05-19 | Mobil Oil Corporation | Method for directly monitoring the output of a neutron source in a borehole logging system |
US4292518A (en) * | 1978-10-26 | 1981-09-29 | Schlumberger Technology Corp. | Methods and apparatus for measuring thermal neutron decay characteristics of earth formations |
US4300043A (en) * | 1979-05-29 | 1981-11-10 | Halliburton Company | Stabilized radioactive logging method and apparatus |
US4384205A (en) * | 1980-11-05 | 1983-05-17 | Schlumberger Technology Corporation | Neutron method and apparatus for determining total cross-section |
US4760252A (en) * | 1983-06-28 | 1988-07-26 | Schlumberger Technology Corporation | Well logging tool with an accelerator neutron source |
US4581532A (en) * | 1984-07-06 | 1986-04-08 | Mobil Oil Corporation | Directional epithermal neutron detector |
-
1986
- 1986-06-05 EP EP86904502A patent/EP0269620B1/de not_active Expired
- 1986-06-05 DE DE8686904502T patent/DE3681454D1/de not_active Expired - Lifetime
- 1986-06-05 WO PCT/US1986/001227 patent/WO1987007733A1/en active IP Right Grant
- 1986-06-05 AU AU61328/86A patent/AU593004B2/en not_active Ceased
- 1986-06-05 EP EP90203435A patent/EP0436990B1/de not_active Expired - Lifetime
- 1986-06-05 AT AT86904502T patent/ATE67318T1/de not_active IP Right Cessation
-
1988
- 1988-01-28 DK DK043688A patent/DK43688D0/da not_active Application Discontinuation
- 1988-01-28 NO NO88880382A patent/NO171136C/no unknown
Also Published As
Publication number | Publication date |
---|---|
EP0269620B1 (de) | 1991-09-11 |
EP0269620A1 (de) | 1988-06-08 |
NO171136B (no) | 1992-10-19 |
NO880382D0 (no) | 1988-01-28 |
WO1987007733A1 (en) | 1987-12-17 |
NO880382L (no) | 1988-03-28 |
ATE67318T1 (de) | 1991-09-15 |
EP0436990A2 (de) | 1991-07-17 |
NO171136C (no) | 1993-01-27 |
AU6132886A (en) | 1988-01-11 |
EP0436990B1 (de) | 1995-04-12 |
AU593004B2 (en) | 1990-02-01 |
EP0436990A3 (en) | 1992-12-30 |
DE3681454D1 (de) | 1991-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ATS | Application withdrawn |