Bottom hole assembly for deploying an expandable liner in a wellbore
US9470059B2 · kind B2 · utility
39Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2012 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Apr 5, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/108
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bottom hole assembly carrying an expandable tubular is disposed in a portion of a wellbore having a lost circulation zone, and the tubular is radially expanded to isolate the wellbore from the formation across the lost circulation zone. The expandable tubular is made up of a rolled up sheet like member and mounts along the outer periphery of a portion of the bottom hole assembly. A bladder on the bottom hole assembly is inflated for expanding the tubular radially outward against the wellbore wall. A drill bit and underreamer are included with the bottom hole assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.