Inflatable packer
Patent
·
OSTI ID:5965279
The invention consists of an inflatable packer utilizing a tubular mandrel having a port extending radially through it. An elastomeric valve element is resiliently urged against the exterior of the mandrel to cover the port. A generally tubular packer body surrounds the mandrel and contains a pair of longitudinally spaced-apart heads, one of which is longitudinally slidable on the mandrel, and a tubular radially expandable packer element interposed between the heads. Fluid communication is provided between the radially outer side of the port and a fluid reception chamber. The packer body is operatively associated with the chamber and responsive to fluid pressure therein to radially extend the packer element. The valve element is claimed to be simple but highly reliable and easily replaceable. It is designed to maintain a seal in spite of the presence of small foreign particles, and after some scarring or wear. 18 claims.
- Assignee:
- EDB-85-061003; EPA-11-001754
- Patent Number(s):
- US 4163562
- OSTI ID:
- 5965279
- Country of Publication:
- United States
- Language:
- English
Similar Records
Inflatable packer
Well washing tool and method
Apparatus for setting, unsetting, and retrieving a packer or bridge plug from a subterranean well
Patent
·
Mon Apr 19 23:00:00 EST 1971
·
OSTI ID:5825335
Well washing tool and method
Patent
·
Tue Jul 21 00:00:00 EDT 1981
·
OSTI ID:5334696
Apparatus for setting, unsetting, and retrieving a packer or bridge plug from a subterranean well
Patent
·
Mon Jan 09 23:00:00 EST 1989
·
OSTI ID:6228699