2011 Ford Taurus SHO - any idea what could be wrong?

What is your question?

There is no noise, when accelerating a cloud of smoke for 1/2 mile, smelling like oil, loss of power, after warm the car has an evident cloud of smoke while driving and then when you accelerate blows a huge cloud again. One shop changed the valve cover and oil exchange, but made the car smoke much worse.

What makes this problem better or worse?

accelerating

How long has your 2011 Ford Taurus had this problem?

few weeks