| 摘要 |
The present invention provides an expandable tubular connection that may be expanded to large degrees of expansion (i.e., 15-25%) in highly constrained conditions, such as Fix-Fix conditions, by hydraulic means and produces a metal-to-metal seal after expansion. The expandable tubular connection incorporates a combination of elastomeric and metal-to-metal sealing components in the sealing system. The elastomeric sealing component provides sealing of the connection during hydraulic expansion and allows control of deformation rates of pin and box members to achieve a high stress interference contact between pin and box members resulting in a metal-to-metal seal after expansion.
|
