FR2428847A1 - Systeme et procede de diagraphie electrique a haute frequence pour trous de forage - Google Patents
Systeme et procede de diagraphie electrique a haute frequence pour trous de forageInfo
- Publication number
- FR2428847A1 FR2428847A1 FR7818094A FR7818094A FR2428847A1 FR 2428847 A1 FR2428847 A1 FR 2428847A1 FR 7818094 A FR7818094 A FR 7818094A FR 7818094 A FR7818094 A FR 7818094A FR 2428847 A1 FR2428847 A1 FR 2428847A1
- Authority
- FR
- France
- Prior art keywords
- signals
- geological formation
- receivers
- produced
- local oscillator
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
- G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Système de diagraphie électrique à haute fréquence. Selon l'invention le système comprend des récepteurs aptes à produire des signaux de fréquence intermédiaire représentatifs de l'énergie électrique reçue de la formation, une source pour produire des impulsions d'horloge à une fréquence sensiblement plus grande que la fréquence intermédiaire et des portes connectées aux détecteurs et à la source d'impulsions d'horloge afin de produire des groupes d'impulsions d'horloge en accord avec les signaux des détecteurs, de sorte que le nombre des impulsions d'horloge de chaque groupe est représentatif de la constante diélectrique de la formation géologique considérée. Concerne, d'une manière générale, la prospection pétrolière et plus particulièrement l'étude des caractéristiques des formations géologiques entourant les trous de forage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818094A FR2428847A1 (fr) | 1978-06-16 | 1978-06-16 | Systeme et procede de diagraphie electrique a haute frequence pour trous de forage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818094A FR2428847A1 (fr) | 1978-06-16 | 1978-06-16 | Systeme et procede de diagraphie electrique a haute frequence pour trous de forage |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2428847A1 true FR2428847A1 (fr) | 1980-01-11 |
Family
ID=9209633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7818094A Pending FR2428847A1 (fr) | 1978-06-16 | 1978-06-16 | Systeme et procede de diagraphie electrique a haute frequence pour trous de forage |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2428847A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2790138A (en) * | 1955-08-09 | 1957-04-23 | Schlumberger Well Surv Corp | Induction well logging |
US3551797A (en) * | 1966-09-29 | 1970-12-29 | Schlumberger Prospection | High frequency electromagnetic well logging methods and apparatus |
FR2241795A1 (fr) * | 1973-08-23 | 1975-03-21 | Schlumberger Prospection | |
FR2289923A1 (fr) * | 1974-10-24 | 1976-05-28 | Texaco Development Corp | Procede et dispositif de diagraphie pour la mesure de la resistivite et de la constante dielectrique |
-
1978
- 1978-06-16 FR FR7818094A patent/FR2428847A1/fr active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2790138A (en) * | 1955-08-09 | 1957-04-23 | Schlumberger Well Surv Corp | Induction well logging |
US3551797A (en) * | 1966-09-29 | 1970-12-29 | Schlumberger Prospection | High frequency electromagnetic well logging methods and apparatus |
FR2241795A1 (fr) * | 1973-08-23 | 1975-03-21 | Schlumberger Prospection | |
FR2289923A1 (fr) * | 1974-10-24 | 1976-05-28 | Texaco Development Corp | Procede et dispositif de diagraphie pour la mesure de la resistivite et de la constante dielectrique |
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