Apparatus and methods for perforating a subterranean formation
US6494261B1 · kind B1 · utility
28Cited by
25References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Aug 16, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods for perforating a subterranean well are provided. In general perforating apparatus, including a pre-weakend casing apparatus and a propellant assembly, is deployed within a formation of the well. Activation of the propellant assembly perforates the pre-weakened casing apparatus and the well formation. The invention can accomplish perforation and sand-control operations in a single trip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.