| 摘要 |
Apparatus and methods of expanding tubular members are disclosed. In one embodiment, the apparatus includes a vibrating device (16) that is capable o f imparting a longitudinal and/or lateral and/or oblique vibration to a tubula r member (12) or string (18) as it is being run into a borehole or wellbore. I n another embodiment, the vibrating device (16) imparts a longitudinal and/or lateral and/or oblique vibration to a tubular member (12) and/or expander device (14), as the tubular member (12) is being radially expanded by the expander device (14).
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