Non-stop driller manifold and methods
US9664003B2 · kind B2 · utility
1Cited by
37References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus, systems, and methods for continuously circulating drilling fluid through a tubular string are described. The methods include connecting a sub having a central bore and a side bore to the tubular string, connecting a top drive to the tubular string, connecting a manifold to the sub and top drive, wherein the manifold comprises a plurality of electrically controlled valves, and controlling the flow of drilling fluid through the sub and top drive by selectively opening and closing the electrically controlled valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.