Wellhead plunger inspection arrangement
US7748448B2 · kind B2 · utility
3Cited by
0References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An oil and gas well production unit for the retrieval of oil and gas from a diminishing oil and gas production field. The unit comprises a well casing within the field attached to a lubricator assembly. A plunger is arranged for reciprocable travel within a tubing in the casing and the lubricator to assist in the production of oil and gas removal from the oil and gas well production unit. A plunger examination port is arranged within the lubricator assembly to permit determination of the amount of wear of the plunger without having to remove the plunger from the lubricator assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.