NO317441B1 - Apparat og fremgangsmate for a undertrykke mikrofonstoy i proporsjonaltellere for logging under boring - Google Patents
Apparat og fremgangsmate for a undertrykke mikrofonstoy i proporsjonaltellere for logging under boring Download PDFInfo
- Publication number
- NO317441B1 NO317441B1 NO19970319A NO970319A NO317441B1 NO 317441 B1 NO317441 B1 NO 317441B1 NO 19970319 A NO19970319 A NO 19970319A NO 970319 A NO970319 A NO 970319A NO 317441 B1 NO317441 B1 NO 317441B1
- Authority
- NO
- Norway
- Prior art keywords
- pulse
- pulses
- detector
- neutron
- output
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 13
- 239000000523 sample Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000005755 formation reaction Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 230000006335 response to radiation Effects 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
- 230000001629 suppression Effects 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 6
- 230000001427 coherent effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 101100063435 Caenorhabditis elegans din-1 gene Proteins 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 101100194817 Caenorhabditis elegans rig-6 gene Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
- Geophysics And Detection Of Objects (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1105096P | 1996-01-25 | 1996-01-25 | |
| US08/637,567 US5635711A (en) | 1996-04-25 | 1996-04-25 | Apparatus and method for the suppression of microphonic noise in proportional counters for borehole logging-while-drilling |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO970319D0 NO970319D0 (no) | 1997-01-24 |
| NO970319L NO970319L (no) | 1997-07-28 |
| NO317441B1 true NO317441B1 (no) | 2004-11-01 |
Family
ID=26681920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19970319A NO317441B1 (no) | 1996-01-25 | 1997-01-24 | Apparat og fremgangsmate for a undertrykke mikrofonstoy i proporsjonaltellere for logging under boring |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0786674B1 (fr) |
| CA (1) | CA2195723A1 (fr) |
| DE (1) | DE69725630D1 (fr) |
| NO (1) | NO317441B1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007331B (zh) * | 2013-02-21 | 2016-09-21 | 中国石油化工股份有限公司 | 用于采集分析井场噪声的装置及方法 |
| US11774628B2 (en) | 2019-05-24 | 2023-10-03 | Halliburton Energy Services, Inc. | Probabilistically distinguishing between true and false scintillator pulses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879463A (en) * | 1987-12-14 | 1989-11-07 | Schlumberger Technology Corporation | Method and apparatus for subsurface formation evaluation |
| US5023450A (en) * | 1990-04-12 | 1991-06-11 | Halliburton Logging Services, Inc. | Method for discriminating microphonic noise in proportional counters |
| US5483061A (en) * | 1994-09-07 | 1996-01-09 | Schlumberger Technology Corporation | Gamma ray scintillation detector apparatus and method for reducing shock induced noise |
-
1997
- 1997-01-20 EP EP97300345A patent/EP0786674B1/fr not_active Expired - Lifetime
- 1997-01-20 DE DE69725630T patent/DE69725630D1/de not_active Expired - Lifetime
- 1997-01-22 CA CA002195723A patent/CA2195723A1/fr not_active Abandoned
- 1997-01-24 NO NO19970319A patent/NO317441B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO970319L (no) | 1997-07-28 |
| CA2195723A1 (fr) | 1997-07-26 |
| EP0786674A3 (fr) | 1999-05-19 |
| NO970319D0 (no) | 1997-01-24 |
| EP0786674B1 (fr) | 2003-10-22 |
| EP0786674A2 (fr) | 1997-07-30 |
| DE69725630D1 (de) | 2003-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |