Assembly and method for monitoring position of blowout preventer rams
US10273774B2 · kind B2 · utility
7Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Apr 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8242
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A blow out preventer (“BOP”) includes a vertical bore extending through the body, a ram cavity intersecting the bore, and a port located below the ram cavity. A sensor assembly is locatable in the port and is configured to monitor the position of at least one opposing ram contained in the BOP. At least one of the rams includes a detection feature on a lower surface of the ram which is distinguishable from the rest of the ram body, other features of the BOP, and any debris in the bore of the BOP. The detection feature is detectable by the sensor assembly. The detection feature may include a visual indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.