Multi-stage setting tool with controlled force-time profile
US9228413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jan 18, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multi-stage setting tool actuated by hydrostatic pressure downhole is provided with a selectable force-time profile during setting. A first port opens a first piston chamber to hydrostatic pressure which drives a first piston. A force-transmitting member, attached to the piston, is driven in response to the fluid pressure increase in the chamber. The process is repeated with sequential ports and piston chambers. A settable tool is set in response to the driving of the force-transmitting member by the pistons. The combined stroke distances and forces of the pistons are selected to set the tool. Opening of the ports can occur in response to electrical signal and can be conditional on occurrence of a selected event or condition. Speed of setting can be regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.