Adaptive workflows for artifact identification in electromagnetic pipe inspection
US10901111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Jun 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for identifying an artifacts disposed on concentric pipes may comprise disposing an electromagnetic logging tool into a first wellbore, broadcasting an electromagnetic field from a transmitter disposed on the electromagnetic logging tool, energizing a casing with the electromagnetic field, and recording a secondary electromagnetic field from the casing at a plurality of depths and at a plurality of frequencies. The method may further comprise picking a first plurality of artifacts in the first signal, constructing a target value matrix from the first plurality of artifacts, producing a first input matrix from the first signal and a first well plan, and constructing a predictor from the first input matrix and the target value matrix. Additionally, disposing the electromagnetic logging tool into a second wellbore and producing a second plurality of artifacts from the predictor and the second input matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.