问答题 翻译：One has only to think of oil deposites on the shore of the Arctic ocean or in the jwngles on the interiors slops of Amazon basin to realize the difficulties are involved in getting the oil from the well to the cousumer.

问答题 翻译：Log interpretation is the process by which these measurable parameters are translated into the desired petrophysical parameters of porosity, hydrocarbon saturation, permeability, producibility, lithology, etc.

问答题 翻译：The sampling device is designed to take samples from two or three different levels in the tank so that a composite sample can be collected that will be the representative of the whole tank.