Multiple activation-device launcher for a cementing head
US8555972B2 · kind B2 · utility
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74References
5Claims
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Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Sep 15, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/068
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multiple activation-device launching system for a cementing head comprises a launcher body and at least one launching chamber that are sized to receive one or more activation devices therein. The activation devices are launched into the principal process-fluid stream inside the cementing head, and may be darts, balls, bombs, canisters and combinations thereof. The launching chambers are in fluid communication with an external power source for launching the activation device into the principal process-fluid stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.