Magnetic leak management apparatus and methods
US9476277B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2011 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | May 28, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/168
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Magnetic means for managing and stopping leaks in metal pipes such as well bores and pipe risers is provided. A magnetic leak arrestor comprises a spool with magnetic collar disposed thereabout. The spool has a tapered end for inserting into a pipe riser. The magnetic collar creates a seal with the pipe riser, which may be welded in place, if desired. Additionally, a magnet may be positioned proximate a leak in a side wall of a pipe riser to seal the leak. The magnet may be shaped to conform to the shape of the pipe riser, and a seal gasket provided around an edge portion of the magnet. A slurry of magnetically active material may be provide inside the pipe to seal the leak in the side wall or to provide a blockage in the pipe riser so that killing fluids may be pumped into the well bore, if desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.