Selective hydraulic fracturing tool and method thereof
US8783365B2 · kind B2 · utility
21Cited by
382References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jun 11, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A selective downhole tool including a tubular having a longitudinal bore enabling passage of fluids there through. Having a valve opening in a wall of the tubular. An expandable ball seat selectively movable between a first size sized to trap a ball to block flow through the tubular. A larger second size sized to release the ball through the tubular. A valve cover longitudinally movable within the tubular, the valve cover including a dissolvable insert. Also included is a method of operating a downhole tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.