Theoretical Investigation of Electrical Resistivity and Strength in situ.
Abstract
Strength and electrical resistivity in situ are probably not strongly related. Strength depends upon the lengths of cracks in the formation, and therefore it is sensitive to the presence of joints or faults. Expressions for the effect of cracks upon electrical resistivity are derived here by assuming they are penny-shaped ellipsoids isolated in an infinite matrix or as thin films running through the sample. The expressions suggest that resistivity depends upon porosity rather than crack length, and that joints probably do not affect the overall electrical characteristics of a formation appreciably.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1975
- Accession Number
- ADA015829
Entities
People
- J. B. Walsh
Organizations
- Massachusetts Institute of Technology