Method and apparatus for mulit-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
US7719282B2 · kind B2 · utility
15Cited by
21References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 19, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jul 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved induction tool for evaluating formation resistivity. The tool provides electromagnetic transmitters and sensors suitable for transmitting and receiving magnetic fields in radial directions that are orthogonal to the tool's longitudinal axis with minimal susceptibility to errors associated with parasitic eddy currents induced in the metal components surrounding the transmitter and receiver coils. A magnetic lens is provided to select sensitivity to a desired reservoir formation property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.