Pulsating rotational flow for use in well operations
US8944160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Feb 5, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for use with a subterranean well can include a fluid oscillator which discharges pulsating fluid from a tubular string in a direction at least partially toward an end of the tubular string proximate a surface of the earth. A method can include discharging a fluid from the tubular string, thereby applying a reaction force to the tubular string, which reaction force biases the tubular string at least partially into the well. Another method can include discharging a pulsating fluid from a fluid oscillator in a direction at least partially toward an end of the tubular string, and drilling into an earth formation with a drill bit connected at an opposite end of the tubular string in the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.