有些概念，现在很少有人去考究，只是拿来就用。
某油藏工程书第15页对“有效渗透率”的定义是：当岩石中为一相流体充满时所测得的岩石渗透率叫有效渗透率。
而斯伦贝谢对有效渗透率的解释是：
The ability to preferentially flow or transmit a particular fluid when other immiscible fluids are present in the reservoir (e.g., effective permeability of gas in a gas-water reservoir). The relative saturations of the fluids as well as the nature of the reservoir affect the effective permeability. In contrast, absolute permeability is the measurement of the permeability conducted when a single fluid or phase is present in the rock.
现在这出书的岂不是误人子弟？
