Method and apparatus for wellbore control
US9297234B2 · kind B2 · utility
3Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Sep 19, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for wellbore control include a downhole facing ball stop and sealing area that can stop and seal with an actuator ball migrating toward surface with wellbore returns or production. The downhole facing ball stop operates with the returning actuator ball to create a seal against any returns or production migrating toward surface such that well control is provided until the ball is removed from the sealing area or a bypass is opened around the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.