DE2330809A1 - Verfahren und vorrichtung zur untersuchung der eigenschaften untertaegiger erdformationen mit gepulsten neutronen und unterdrueckung der hintergrundstrahlung - Google Patents
Verfahren und vorrichtung zur untersuchung der eigenschaften untertaegiger erdformationen mit gepulsten neutronen und unterdrueckung der hintergrundstrahlungInfo
- Publication number
- DE2330809A1 DE2330809A1 DE2330809A DE2330809A DE2330809A1 DE 2330809 A1 DE2330809 A1 DE 2330809A1 DE 2330809 A DE2330809 A DE 2330809A DE 2330809 A DE2330809 A DE 2330809A DE 2330809 A1 DE2330809 A1 DE 2330809A1
- Authority
- DE
- Germany
- Prior art keywords
- pulses
- background
- energy
- inelastic
- gate
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 38
- 230000001629 suppression Effects 0.000 title description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 44
- 238000005755 formation reaction Methods 0.000 claims description 44
- 230000005251 gamma ray Effects 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 238000001427 incoherent neutron scattering Methods 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012937 correction Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 28
- 229910052799 carbon Inorganic materials 0.000 description 28
- 239000000523 sample Substances 0.000 description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 26
- 239000001301 oxygen Substances 0.000 description 26
- 229910052760 oxygen Inorganic materials 0.000 description 26
- 239000013078 crystal Substances 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000003921 oil Substances 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 10
- 239000011575 calcium Substances 0.000 description 10
- 229910052791 calcium Inorganic materials 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 7
- 235000019738 Limestone Nutrition 0.000 description 6
- 239000006028 limestone Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000011835 investigation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 4
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- 230000004913 activation Effects 0.000 description 3
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- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 229910052722 tritium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 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
- G01V5/102—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 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)
- Geophysics And Detection Of Objects (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26410672A | 1972-06-19 | 1972-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2330809A1 true DE2330809A1 (de) | 1974-01-17 |
Family
ID=23004611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2330809A Pending DE2330809A1 (de) | 1972-06-19 | 1973-06-16 | Verfahren und vorrichtung zur untersuchung der eigenschaften untertaegiger erdformationen mit gepulsten neutronen und unterdrueckung der hintergrundstrahlung |
Country Status (11)
| Country | Link |
|---|---|
| AU (1) | AU470788B2 (fr) |
| CA (1) | CA981810A (fr) |
| CS (1) | CS174209B2 (fr) |
| DE (1) | DE2330809A1 (fr) |
| FR (1) | FR2189759B1 (fr) |
| GB (1) | GB1396456A (fr) |
| HU (1) | HU170521B (fr) |
| NO (1) | NO141067B (fr) |
| PL (1) | PL90076B1 (fr) |
| YU (1) | YU158473A (fr) |
| ZA (1) | ZA733607B (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2709754A (en) * | 1954-04-14 | 1955-05-31 | Nuclear Instr And Chemical Cor | Method and apparatus for indicating radioactivity percentage ratios |
| FR1188557A (fr) * | 1956-10-18 | 1959-09-23 | Jersey Prod Res Co | Procédé de sondage par radioactivité |
| US3780303A (en) * | 1971-09-20 | 1973-12-18 | Texaco Inc | Pulsed neutron logging with background compensation |
-
1973
- 1973-05-25 GB GB2527773A patent/GB1396456A/en not_active Expired
- 1973-05-25 CA CA172,207A patent/CA981810A/en not_active Expired
- 1973-05-28 ZA ZA733607A patent/ZA733607B/xx unknown
- 1973-06-12 AU AU56845/73A patent/AU470788B2/en not_active Expired
- 1973-06-13 YU YU01584/73A patent/YU158473A/xx unknown
- 1973-06-16 DE DE2330809A patent/DE2330809A1/de active Pending
- 1973-06-18 NO NO2528/73A patent/NO141067B/no unknown
- 1973-06-18 CS CS4355A patent/CS174209B2/cs unknown
- 1973-06-18 PL PL1973163426A patent/PL90076B1/pl unknown
- 1973-06-18 HU HUTE721A patent/HU170521B/hu unknown
- 1973-06-19 FR FR7322255A patent/FR2189759B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| PL90076B1 (fr) | 1976-12-31 |
| HU170521B (fr) | 1977-06-28 |
| YU158473A (en) | 1982-05-31 |
| AU470788B2 (en) | 1976-03-25 |
| NO141067B (no) | 1979-09-24 |
| FR2189759B1 (fr) | 1977-05-13 |
| AU5684573A (en) | 1974-12-12 |
| ZA733607B (en) | 1974-10-30 |
| CA981810A (en) | 1976-01-13 |
| FR2189759A1 (fr) | 1974-01-25 |
| GB1396456A (en) | 1975-06-04 |
| CS174209B2 (fr) | 1977-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| OHA | Expiration of time for request for examination |