Selectively degradable passage restriction and method
US9033055B2 · kind B2 · utility
21Cited by
438References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | May 19, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An actuation system and method includes a tubular defining a passage, and an assembly disposed with the tubular. The assembly includes a restriction operatively arranged to receive a restrictor for enabling actuation of the assembly. The restriction includes a degradable material with a protective layer thereon, the degradable material degrading upon exposure to a fluid in the passage and the protective layer isolating the degradable material from the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.