Dust control system for transferring dry material used in subterranean wells
US7703518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jun 5, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A portable well treating fluid mixing system includes: a supply tank having an inlet receiving pneumatically conveyed dry treating material; a cyclone separator having an inlet coupled to the supply tank and receiving dust laden air from the supply tank, and having a first outlet venting clean air and having a second outlet venting solids; a collection container having a first inlet coupled to the cyclone separator second outlet and receiving solids from the cyclone separator and having an outlet; and, a pump having an inlet coupled to the collection container outlet and a pump outlet coupled to the supply tank. In operation, the system continuously conveys dust from the collection container back into the supply tank to maintain the separator in proper operating condition and minimizes venting of dust during the transfer of material to the supply tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.