Method for identifying non-magnetic minerals in earth formations utilizing magnetic susceptibility measurements
US4507613A · kind A · utility
2Cited by
7References
2Claims
0Family size
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Key dates
| Filing date | Oct 15, 1982 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Oct 15, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic susceptibility log is run through an earth formation to identify the presence of any select non-magnetic minerals in association with magnetic minerals. The select non-magnetic mineral is identified as being present when the magnetic susceptibility measurement exceeds a level at which a measurable concentration of the select non-magnetic mineral is expected to be present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.