Drill element and associated equipment and methods
US10316594B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill string element for use in the drilling of a borehole, the drill string element comprising: a main body; and a flow control mechanism, wherein the drill string element defines a first aperture, another aperture and a passage configured to provide a fluid flow path between the first aperture and the other aperture, the first and other apertures provide fluid communication between a volume around the drill string element and the passage, and the flow control mechanism is configured to inhibit the flow of fluid through the passage in a first operating mode and to permit the flow of fluid through the passage in a second operating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.