Detection and correction of false positive classifications from a product sand detection tool
US12320251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jan 24, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods, computing systems, and machine-readable media for detecting downhole sand entry points are provided. A computing device receives a sand detection output of a product sand detection tool and a raw timeseries waveform corresponding to an input to the product sand detection tool. Based on the sand detection output, at least one downhole sand entry point is detected at a logging depth. In response to the detecting of the at least one downhole sand entry point, the computing device extracts a subset of features based on the raw timeseries waveform. The computing device determines whether the detecting is a true positive or a false positive based on the extracted subset of the features and a trained Random Forest classifier. A remedial action is performed regarding the at least one downhole sand entry point responsive to the determining that the detecting is the true positive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.