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rather-be-golfing wrote:Put a long (100 ft or so), thin, balloon made of heavy rubber inside a flexible tube. (The tube should come apart under pressure.) Connect a hydraulic hose into the balloon. Direct the hose and tube down into the well as far as possible. (thousands of feet?) Quickly inflate the balloon with hydraulic fluid (air bag quick!). The tube should come apart during the inflation allowing the rubber to grip the walls of the well.
Sexxxy Beast wrote:I was just thinking an explosive could clamp the pipe [...]
Explosives is the way to go just like in the movies!