GB1424023A - Methods and apparatus for measuring the density of geological formations - Google Patents
Methods and apparatus for measuring the density of geological formationsInfo
- Publication number
- GB1424023A GB1424023A GB360373A GB360373A GB1424023A GB 1424023 A GB1424023 A GB 1424023A GB 360373 A GB360373 A GB 360373A GB 360373 A GB360373 A GB 360373A GB 1424023 A GB1424023 A GB 1424023A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- amo
- amplitude
- spectrum
- borehole
- 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.)
- Expired
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 3
- 238000005755 formation reaction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 238000001228 spectrum Methods 0.000 abstract 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract 3
- 229910052601 baryte Inorganic materials 0.000 abstract 3
- 239000010428 baryte Substances 0.000 abstract 3
- 238000012986 modification Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000005251 gamma ray Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000000087 stabilizing 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
-
- 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
- G01V5/12—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 gamma or X-ray 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
- G01V5/12—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 gamma or X-ray sources
- G01V5/125—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 gamma or X-ray sources and detecting the secondary gamma- or X-rays in different places along the bore hole
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7202183A FR2168850A1 (en) | 1972-01-24 | 1972-01-24 | Borehole strata density measurement - with correction for ettors by baryta deposits from drilling mud |
| FR7243983A FR2209941B2 (enrdf_load_stackoverflow) | 1972-01-24 | 1972-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1424023A true GB1424023A (en) | 1976-02-04 |
Family
ID=26216859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB360373A Expired GB1424023A (en) | 1972-01-24 | 1973-01-24 | Methods and apparatus for measuring the density of geological formations |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5244842B2 (enrdf_load_stackoverflow) |
| CA (1) | CA971681A (enrdf_load_stackoverflow) |
| DE (1) | DE2302818C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2209941B2 (enrdf_load_stackoverflow) |
| GB (1) | GB1424023A (enrdf_load_stackoverflow) |
| NL (1) | NL177253C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2518876C2 (ru) * | 2009-04-17 | 2014-06-10 | Шлюмбергер Текнолоджи Б.В. | Способ определения плотности подземных пластов, используя измерения нейтронного гамма-каротажа |
| CN114284312A (zh) * | 2021-12-24 | 2022-04-05 | 华中科技大学 | 一种ots选通管的操作方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944148A (en) * | 1954-07-02 | 1960-07-05 | Schlumberger Well Surv Corp | Apparatus for investigating earth formations |
-
1972
- 1972-12-11 FR FR7243983A patent/FR2209941B2/fr not_active Expired
-
1973
- 1973-01-15 CA CA161,283A patent/CA971681A/en not_active Expired
- 1973-01-20 DE DE19732302818 patent/DE2302818C3/de not_active Expired
- 1973-01-23 NL NL7300923A patent/NL177253C/xx not_active IP Right Cessation
- 1973-01-24 GB GB360373A patent/GB1424023A/en not_active Expired
- 1973-01-24 JP JP48010221A patent/JPS5244842B2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2518876C2 (ru) * | 2009-04-17 | 2014-06-10 | Шлюмбергер Текнолоджи Б.В. | Способ определения плотности подземных пластов, используя измерения нейтронного гамма-каротажа |
| US8918287B2 (en) | 2009-04-17 | 2014-12-23 | Schlumberger Technology Corporation | Method of determining density of underground formations using neutron-gamma ray measurements |
| CN114284312A (zh) * | 2021-12-24 | 2022-04-05 | 华中科技大学 | 一种ots选通管的操作方法 |
| CN114284312B (zh) * | 2021-12-24 | 2024-05-14 | 华中科技大学 | 一种ots选通管的操作方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5244842B2 (enrdf_load_stackoverflow) | 1977-11-11 |
| DE2302818B2 (de) | 1975-04-03 |
| CA971681A (en) | 1975-07-22 |
| FR2209941A2 (enrdf_load_stackoverflow) | 1974-07-05 |
| NL7300923A (enrdf_load_stackoverflow) | 1973-07-26 |
| JPS4885402A (enrdf_load_stackoverflow) | 1973-11-13 |
| NL177253C (nl) | 1985-08-16 |
| DE2302818C3 (de) | 1975-11-20 |
| NL177253B (nl) | 1985-03-18 |
| DE2302818A1 (de) | 1973-08-02 |
| FR2209941B2 (enrdf_load_stackoverflow) | 1977-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3922541A (en) | Methods and apparatus for stabilizing the gain of a radiation detector | |
| IE41986L (en) | Measuring the density of formations traversed by a borehole | |
| ATE28246T1 (de) | Bohrlochwanddickenbestimmung mittels eines verstaerkung stabilisierten detektors unter ausnuetzung der natuerlichen gammastrahlung. | |
| EP0389345A3 (en) | Methods and apparatus for epithermal neutron logging | |
| JPS57125372A (en) | Measuring device of neutron and gamma rays | |
| GB1364575A (en) | Method for radiological well logging | |
| US4031367A (en) | Methods and apparatus for pulse height analyzer offset control | |
| GB1470568A (en) | Neutron logging reliability techniques and apparatus | |
| US3767921A (en) | Well logging system with linearity control | |
| US3900824A (en) | Methods of preventing cycle skipping in processing acoustic well-logging signals | |
| GB1477065A (en) | Horizon sensor | |
| US3789219A (en) | Mud cake compensated neutron logging system | |
| US3900733A (en) | Methods and apparatus for measuring the density of geological formations | |
| US4157469A (en) | Pulsed neutron well logging apparatus having means for determining background radiation | |
| GB1424023A (en) | Methods and apparatus for measuring the density of geological formations | |
| US3662173A (en) | Well logging method for determining the presence of aluminum and magnesium | |
| US4540883A (en) | Background correction method and apparatus for pulsed neutron logging of earth boreholes | |
| US4317034A (en) | Method and apparatus for measuring neutron characteristics of material surrounding a borehole | |
| US4041309A (en) | Background subtraction system for pulsed neutron logging of earth boreholes | |
| US3693029A (en) | Electrical compensation circuit utilizing two transistors connected in parallel | |
| US3529160A (en) | Method and apparatus for simultaneous porosity and chlorinity logging | |
| GB1356019A (en) | Digital display echo-sounding | |
| US4315148A (en) | Method and apparatus for measuring neutron characteristics of material surrounding a borehole | |
| GB1408808A (en) | Well logging system with linearity control | |
| US3564248A (en) | Method and apparatus for calibrating pulsed neutron well logging instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |