Apparatus and method for providing an alternate flow path in isolation devices
US8403046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Jan 6, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for use in a wellbore is described, the apparatus having a tubular body and a throughbore which defines a primary fluid path through the apparatus. An expanding element is disposed around the tubular body and is configured to provide an annular barrier in a space between the tubular body and a surrounding wall. A conduit defining a secondary flow path through the apparatus is provided, and is configured to be in fluid communication with at least one alternate path, such as a shunt tube. The conduit is arranged to vary the secondary flow path along a longitudinal direction of the apparatus, for example to redirect the flow path to a radial position closer to the tool body. The conduit is configured to have a reduced effect on the operation of the expanding element, while still allowing the conduit to be coupled to alternate flow paths of adjacent apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.