Multi-string monitoring using electro-magnetic (EM) corrosion detection tool
US10436011B2 · kind B2 · utility
1Cited by
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19Claims
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Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-string corrosion monitoring method includes using a first set of electromagnetic (EM) log data to calculate attributes of a first casing string while attributes of a second casing string are assigned a fixed value. The method also includes using a second set of EM log data to calculate attributes of a second casing string while attributes of the first casing string are assigned a fixed value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.