Reusable ball seat having ball support member
US7673677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2007 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | May 4, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/142
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a reusable seat disposed within the bore. The seat comprises a slidable element, a fixed element, a plug element support member, a seat inner diameter, and a return member to urge the slidable element toward the run-in position. The plug element support member has a retracted position when the seat is in the run-in position and an extended position when the seat is in the set position. A plug element adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit is used to move the plug element support member from the retracted position to the extended position, thereby providing support to the plug element landed on the seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.