Drillable bridge plug
US6491108B1 · kind B1 · utility
184Cited by
38References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1204
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for use in a subterranean well. The apparatus typically includes a subterranean plug including a mandrel having an outer surface and a non-circular cross-section and a packing element arranged about the mandrel, the packing element having a non-cylindrical inner surface matching the mandrel outer surface such that concentric rotation between the mandrel and the packing element is precluded. The apparatus is substantially non-metallic to facilitate quick drill-out of the plug. The apparatus is alternatively adaptable as a cement retainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.