Squeezing Dinosaurs

I read a book some time ago about abiogenic oil.  To summarize; this is the theory that oil/petroleum comes from, at least in part, from naturally generated reactions of the earth itself.  Not from the decomposition of organic material such as dinosaurs and prehistoric plant life as we have always been told, but from chemical reactions in the earth itself.

According to this, supposedly oil is a replaceable, replenishable resource and we will never really run out; we just have find it when it regenerates.  Now, I do not know if it is true.  I do not know if I even believe it to be a possibility.  I do know that it is generally dismissed.  but I do have some questions:

  1. I have seen that some oil wells are 2 miles or more deep.  I have even seen that there are some 7.7 miles deep.  Now what I want to know is how them dinosaurs got so damned deep?
  2. How many dinosaurs are there in a gallon of oil – or – how many gallons of oil does a dinosaur make?  I am guessing that it is dinosaurs per gallon because just how much can you squeeze a dinosaur.
  3. Why does the oil seem to be in desert places when dinosaurs were supposed to be in lush places?  I know that the climate has changed but you would think that oil would be everywhere as dinosaurs were everywhere.
    1. Or were the oil producing dinosaurs living in the modern desert country?
    2. Why is there no big oil finds where there are big dinosaur bones found?