1. To hit, to damage, to destroy, or to disable submarines and surface ships; as well as, to destroy moorings, docks and other shoreline targets: "When the dock was accidentally torpedoed by the training ship’s crew, reparations were quickly started."
2. To spoil, to undermine, to ruin, or to destroy something completely: "The union threatened to torpedo the agreement unless the company agreed to make retroactive pay increases."

"To explode a torpedo in an oil or gas well facilitates the extraction of such elements."