Pressure setting tool and method of use
US9476272B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Dec 11, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A non-explosive, down hole, setting tool, system method includes a hydraulic fluid reservoir, a first compressible fluid for applying a first force against hydraulic fluid in contact with one side of a setting piston that is movable in the tool, and a second compressible fluid for applying a second force greater than the first force against the other side of the setting piston. Hydraulic fluid is pumped against one end of the setting piston to overcome the second force and move the setting piston. A reset valve is located in a hydraulic fluid return passageway that is connected between other end of the setting piston and the source of hydraulic fluid. The reset valve can move to selectively block the flow of the hydraulic fluid or allow hydraulic fluid to flow through the fluid return passageway, so that the setting piston can move the setting piston back to its start position.The tool can be calibrated by running the tool at a first predetermined voltage, automatically shutting off the tool when applied voltage exceeds a second predetermined voltage higher than the first predetermined voltage, and automatically restarting the tool after it is shut off when the voltage reaches a th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.