System, apparatus and method for detecting wireline tools
US11732576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure provides a system, an apparatus and a method for detecting line-attached tools in an above-surface portion of a well for use during well-work overs and/or interventions. The system includes the apparatus which comprises: a body for housing at least one magnetic-field generator and at least one magnetic-field sensor; and a tubular portion that is configured to be housed within the body. The tubular portion has a bore for receiving the line-attached tools and the at least one magnetic-field sensor is configured for detecting changes in the magnetic field caused by the line-attached tool approaching, moving through and/or moving away from the body. The system may further include a processor unit for receiving one or more signals from the at least one magnetic-field sensor and for determining the location and/or one or more dimensions of the line-attached tool while approaching, moving through or moving away from the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.