Method and apparatus for determining aluminum concentration in earth formations
US7402797B2 · kind B2 · utility
4Cited by
8References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Aug 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Elemental analysis of an earth formation (including Aluminum) is obtained using measurements from a gamma ray logging tool. The inelastic spectrum of Aluminum is determined from measurements made in a water tank. From the elemental analysis, an estimate of the mineralogy of the formation is made treating the problem as one of Linear Programming (maximizing an objective function subject to equality and/or inequality constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.