Multiple stage tool for use with plunger lift
US7878251B2 · kind B2 · utility
2Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2008 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multiple stage tool for use with plunger lift is disclosed. The disclosed device can be removably positioned at a desired position in a well's tubing, thus providing an upper limit for the travel distance of a first plunger. Subsequent well tubing partitions can be established with the introduction of subsequent plungers followed by the disclosed device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.