Apparatus and method for perforating and fracturing a subterranean formation
US7621332B2 · kind B2 · utility
17Cited by
37References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2605
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suitable gas generating materials include hydrates and hydroxides. Other materials that can be employed with the gas generator include oxidizers and material such as metals that increase the available heat for the activation of the gas generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.