Multi-shot tubing perforator
US6637508B2 · kind B2 · utility
3Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Oct 22, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/112
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A perforator apparatus for repeated punching of holes at a multiple of selected locations in tubing of a well bore. The apparatus is activated for repeated punching operations by a fluid control valve mechanism that controls opposed directional movement of a piston connected to a punch of the perforator apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.