Staging tool seal arrangement for gas wells
US8201629B2 · kind B2 · utility
2Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A staging tool arrangement for gas well production assistance, comprising an elongated staging tool having an elongated upper portion and an elongated lower portion. The upper portion has a sliding relationship with the lower portion thereof. A displaceable annular seal is arranged about the lower portion. A displaceable enclosure is arranged on the elongated lower portion so as to slidably expose and to slidably enclose the annular seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.