Drilling is always a task filled with many upsets. The huge oil find off of the coast of Brazil for task, is very deep and is beneth a vast and extremely hard salt dome which is very thick. Drills are snapping and wearing out at a killer pace. Most everybosdy is aware of the drilling in Chile to say the mners so down deep,well ther wrecked their first drill in the go of it. Am saying drilling is a very expieramental task at every HOLE. So we do need to be openminded to those challenges with every downhole.