Determining resistivity of a geological formation using circuitry located within a borehole casing
Abstract
Geological formation resistivity is determined. Circuitry is located within the borehole casing that is adjacent to the geological formation. The circuitry can measure one or more voltages across two or more voltage measurement electrodes associated with the borehole casing. The measured voltages are used by a processor to determine the resistivity of the geological formation. A common mode signal can also be reduced using the circuitry.
- Inventors:
- Issue Date:
- Research Org.:
- Western Atlas International, Inc., Houston, TX (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175629
- Patent Number(s):
- 6987386
- Application Number:
- 10/286,242
- Assignee:
- Western Atlas International, Inc.
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
- DOE Contract Number:
- FG06-84ER13294
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Vail III, William Banning. Determining resistivity of a geological formation using circuitry located within a borehole casing. United States: N. p., 2006.
Web.
Vail III, William Banning. Determining resistivity of a geological formation using circuitry located within a borehole casing. United States.
Vail III, William Banning. Tue .
"Determining resistivity of a geological formation using circuitry located within a borehole casing". United States. https://www.osti.gov/servlets/purl/1175629.
@article{osti_1175629,
title = {Determining resistivity of a geological formation using circuitry located within a borehole casing},
author = {Vail III, William Banning},
abstractNote = {Geological formation resistivity is determined. Circuitry is located within the borehole casing that is adjacent to the geological formation. The circuitry can measure one or more voltages across two or more voltage measurement electrodes associated with the borehole casing. The measured voltages are used by a processor to determine the resistivity of the geological formation. A common mode signal can also be reduced using the circuitry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {1}
}
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