[Windflier]

You pump a liquid into a moving liquid it wants to get carried along with it and out the leak. It would take a massive pumping operation to overcome the natural flow of the leak with a heavier fluid.

Agreed. I've been wondering myself how they can get the heavy mud to overcome the massive force and pressure of the oil gushing out of the pipeline. I can't visualize how that will work.

[kittycatonline.com]

Agreed. I've been wondering myself how they can get the heavy mud to overcome the massive force and pressure of the oil gushing out of the pipeline. I can't visualize how that will work.

Well, the part I cant grasp is, if they can cram a hose into the hole to pump in mud, can't they instead let the oil flow up through the same hose?