rock hard string, page-68

Some remedies but how long do they take to administer?

stuck (drill pipe) are common and fixable
Solutions for recovering casing, (drillpipe), coiled tubing, and tubing
After the free point is determined, stuck pipe can be loosened by using an explosive backoff or cut with severing or colliding tools.
Well completions can be recovered by using mechanical, explosive, electrical, or chemical cutters. The tubing can be cut in several places, but usually above the packer so that the packer can be milled and fished.

Skull2003. On the Yahoo Message Board.