Hydraulic tools for setting liner top packers and method for cementing liners
US7225870B2 · kind B2 · utility
24Cited by
8References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | May 25, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the present invention relate to hydraulic tools which may be used to set a liner top packer and/or may be used to resist the lifting forces of cementing pack-offs. One embodiment of a tool string for use in wellbore operations comprises a hydraulic anchor assembly adapted to prevent axial movement of the tool string and a hydraulic packer actuator assembly adapted to set a packer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.