Method for borehole correction, formation dip and azimuth determination and resistivity determination using multiaxial induction measurements
US8200437B2 · kind B2 · utility
14Cited by
5References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining electromagnetic induction properties of subsurface rock formations includes determining an eccentering angle of a well logging instrument disposed in a wellbore. The instrument includes at least one triaxial induction transmitter and at least one triaxial induction receiver. The eccentering angle is determined from symmetric cross component measurement differences. The triaxial induction measurements made from the at least one receiver are rotated to an apparent eccentering angle of zero. At least one electromagnetic induction property is determined from the rotated triaxial induction measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.