Method of defining homogeneous rock formation zones along a borehole on the basis of logs
US4648268A · kind A · utility
7Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Sep 24, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V11/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of defining homogeneous rock formation zones along a borehole on the basis of logs, uses two logs, a lithological log and a log relating to the impregnation fluids. Individual limits of zones are determined by reproducing or reshaping each of the logs in the form of rectangular zones or crenellations, preferably rough crenellations for the first log and smoothed crenellations for the second log, and the individual limits are combined to obtain synthetic limits, some of the individual limits belonging to the first log only preferably being subsequently eliminated when the first log is smoothed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.