We've considered this in the beta forums. It's not likely to work, though I don't know if anyone has actually tried it. Remember, mines keep attacking until the ships are destroyed or the mines run out. So, one ship would wipe out a minefield of hundreds of anti-engine or anti-shield mines just like a colony ship takes out aregular minefield if the warheads aren't powerful enough to destroy the colony module. They'd just keep blowing up until they were gone, doing no more damage to the ship.
Mines will have to be changed before any of those cool variations are possible.
[This message has been edited by Baron Munchausen (edited 12 January 2001).]