| 摘要 |
A system for swaging a flared end of an oil well tubing. A ring of explosive material is placed in an inwardly collapsed condition and transported through the tubing. After the explosive material exits from the flared end of the tubing, it is opened and moved to a position substantially surrounding the flared end of the tubing. The ring of explosive material is detonated, causing the flared end of the tubing to be swaged inwardly to a desired configuration. An anvil with a geometry corresponding to the desired internal configuration of the end of the tubing may be positioned within the tubing prior to detonation of the ring of explosive material.
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