Sealing element wear indicator system
US10174577B2 · kind B2 · utility
28Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2015 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Aug 12, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A seal assembly for use in a pressure containment device for containing a fluid pressure in an annular space around a drill string while allowing the drill string to rotate in the pressure containment device. The seal assembly includes a seal comprising and an inner surface and a tubular body, and a wear sensor embedded in the tubular body. The wear sensor emits an alert signal when the inner surface of the seal has been worn away by a preset amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.