Stopping Oil Spew (Not a spill)

am not a real engineer, but have had some design experience and love to figure things out. I have thought as lot about this and it appears that a high tech solution may not be the fix. At those depths and temperatures, with oil not spilling but forcefully flowing out of the pipe it is going to take a solution that is simple and easy to do with a robot or sub. If the pipe is exposed, it may sound crazy but how about using the oil's own presure to help stop the leak? Have you ever seen a Chinese handcuff. The type kids used to play with. You stick your finger in it and the harder you try to pull it out the tighter it gets. Why not create a woven ploymer version on a much larger scale. with a valve at the top end and a gripping surface on the inside. Leave the valve open while placing the cuff over the pipe to allow the oil to flow. close the valve slowly and allow the pressure will tighten the cuff around the pipe. The harder it pushes the tighter the cuff will get. Use the oil's own power to neutralize it? Of course the cuff would have to be held in place while the valve is closed, but a cam ring or clamp of some type at the bottom that could be easily tightened with the robot claw may do the trick.