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DUAL LATEROLOG [1 record]
Record 1 - internal organization data 1989-09-29
Record 1, English
Record 1, Subject field(s)
- Geophysics
- Geological Prospecting
Record 1, Main entry term, English
- focused-current log
1, record 1, English, focused%2Dcurrent%20log
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- Laterolog 2, record 1, English, Laterolog
correct, trademark
- Guard Log 2, record 1, English, Guard%20Log
correct, trademark
- current-focused log 2, record 1, English, current%2Dfocused%20log
- guard-electrode log 2, record 1, English, guard%2Delectrode%20log
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The resistivity log curves from a multi-electrode sonde designed to focus the surveying current radially through the rocks in a horizontal, disk-shaped pattern. This permits sharp definition of bed boundaries and improved measurement of resistivity. 2, record 1, English, - focused%2Dcurrent%20log
Record number: 1, Textual support number: 1 OBS
The first focused measurements were found on the market in 1950 under the name Laterologs. Since then, Laterologs have evolved from the first generation called Laterolog 3 (LL3) into Laterologs 7 (LL7) Laterologs 8 (LL8) and dual Laterologs (LLd). 3, record 1, English, - focused%2Dcurrent%20log
Record 1, Key term(s)
- Laterolog 3
- Laterolog 7
- Laterolog 8
- dual Laterolog
Record 1, French
Record 1, Domaine(s)
- Géophysique
- Prospection géologique
Record 1, Main entry term, French
- diagraphie focalisée de résistivité
1, record 1, French, diagraphie%20focalis%C3%A9e%20de%20r%C3%A9sistivit%C3%A9
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- Laterolog 2, record 1, French, Laterolog
correct, trademark, masculine noun
- latérolog 3, record 1, French, lat%C3%A9rolog
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Type de diagraphie électrique souvent utilisée quand on fore avec un fluide de forage à l'eau salée. Le latérolog mesure la résistance de la formation, mais parce que le courant appliqué est centré sur une petite zone, on peut faire d'avantage de mesures sélectives. 3, record 1, French, - diagraphie%20focalis%C3%A9e%20de%20r%C3%A9sistivit%C3%A9
Record number: 1, Textual support number: 1 CONT
La nécessité pour une mesure de résistivité indépendante de la résistivité de la boue, du diamètre du sondage et de l'épaisseur des couches a été ressentie très tôt. Il a fallu cependant attendre 1950 pour avoir les premières mesures focalisées commercialisées sous le nom de Laterologs. 2, record 1, French, - diagraphie%20focalis%C3%A9e%20de%20r%C3%A9sistivit%C3%A9
Record 1, Spanish
Record 1, Textual support, Spanish
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