Method and apparatus for isolating and treating discrete zones within a wellbore
US9291044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2009 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for conducting a fracturing operation using a wellbore fracturing assembly. The assembly may be mechanically set and released from a wellbore using a coiled tubing string to conduct a fracturing operation adjacent an area of interest in a formation. The assembly may include an unloader for equalizing pressure between the assembly and the wellbore, a pair of spaced apart packers for straddling the area of interest, an injection port disposed between the packers for injecting fracturing fluid into the area of interest, and an anchor for securing the assembly in the wellbore. After conducting the fracturing operation, the assembly may be relocated to another area of interest to conduct another fracturing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.