Pyrotechnic charge powered operating system for downhole tools
US5316087A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Aug 11, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/042
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool apparatus for use in a well includes a housing having a cylindrical chamber defined therein. A power piston is slidably disposed in the cylindrical chamber and divides the cylindrical chamber into first and second chamber portions on opposite sides of the power piston. First and second explosive charges are contained within the housing and communicated with the first and second chamber portions on opposite sides of the power piston. Firing of the first explosive charge moves the power piston in a first direction. Firing of the second explosive charge moves the power piston back in a second direction opposite the first direction. Thus, the operating power for a downhole tool is provided by selective firing of explosive charges which provide the operating pressure to move the power piston of the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.