Easy drill slip with degradable materials
US8695714B2 · kind B2 · utility
29Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/134
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Slip elements for a bridge plug include an inner body portion that is substantially formed of a material that is degradable by dissolution in response to a dissolving fluid and a hardened, resilient, radially outer contact portion. The outer contact portion includes a plurality of openings that function as stress risers. The inner body portion may be formed of magnesium powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.