Activation-device launcher for a cementing head
US8302698B2 · kind B2 · utility
2Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 21, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An activation-device launching system, mounted on a cementing head, allows the deployment of a combination of darts, balls, bombs, canisters in order to activate downhole equipment, launch cementing plugs, deliver chemical products, or the like. A valve controls the flow of process fluid, and holds an activation device in place until it is time for launching. The valve also has a hollow axle through which balls may be launched into the process-fluid stream at any time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.