Downhole flow control devices
US5906238A · kind A · utility
78Cited by
25References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Apr 1, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87981
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.