Well bore cutting and perforating devices and methods of manufacture
US6505559B1 · kind B1 · utility
15Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Sep 20, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tubing and casing cutter is shown which can be assembled in the field from a plurality of pressed segmented pellets of free standing explosive material. The segmented pellets have a liner glued to at least one exposed face thereof. The pellets are glued to a backup plate with two mirror image plates being stacked to form a plate assembly. A plurality of plate assemblies are stacked within a surrounding container to form the cutter. The pressed pellets can also be assembled within a cup-shaped container to form a shaped charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.