“Shell is spending $30 million to create and test a massive "freeze wall" that would extend from the surface to 1,700 feet below the ground. The walls would be 30 feet thick in a shape 300 feet wide by 350 feet long.”
Of course they’ve already built another test wall, “A crew of 200 construction workers will complete the larger freeze wall in the spring by drilling a series of 150 well bores that will be pumped full of ammonia-based coolant. It will take about 18 months for the adjacent water and rock to freeze to minus-60 degrees Fahrenheit, creating the massive ice wall.” -Denver Post
My question is this, if oil availability is not a problem why is Shell spending $30 million dollars to create an ice wall 30 feet thick that extends 1700 feet into the ground? Projects like this are viewed by the general public as proof that the oil industry will always be able to provide us with more oil. For me however, projects like this are proof that cheap, conventional oil is about to become increasingly scarce. Grasping at straws isn't a good sign.