| 20080220991 | CONTACTING SURFACES USING SWELLABLE ELEMENTS - The present disclosure includes a system and method contacting surfaces using swellable elements. In some implementations, an apparatus includes a tubing and a polymer compound. The tubing includes surface and is configured to longitudinally conduit fluid. The polymer compound is adjacent at least a portion the surface of the tubing and operable to expand at least in a radial direction in response to at least an activating agent. The polymer compound comprises nano particles with an aspect ratio at least 2.5. | 09-11-2008 |
