Science, Technology and Values

Abstract

Science may be designated as the search for the understanding of phenomena apprehended by one or more of the senses in terms of theoretically postulated entities and the interrelationships between them in such a manner that the apprehended phenomena may be deducible from them along with others for which it was not postulated and with respect to which its truth and falsity, or rather fecundity or sterility, could be judged. This continuous interplay between the theoretically postulated and the sensuously apprehended, initially in terms of that which is first sought to be understood but more essentially in terms of that which has not yet been apprehended but which can be apprehended if the theoretical postulation is true, is the heart of the scientific enterprise as we have come to practice it today. The theoretical postulation thus links the past with the future, and thus makes the seeking for knowledge connected in an essential manner with what can only be called its relation to the future.

The Impact of the Double Cross-Phase Diffusion Mechanism on Oil Recovery during CO2 Injection into Fractured Rocks: A Simulation Study

“…In the chemical engineering literature, film theory has been used to model cross-phase diffusion. This theory represents that the components of oil and gas diffusion fluxes cross the interface to reach the chemical equilibrium. , This concept has also been used in petroleum engineering to model the molecular diffusion in gas injection processes. ,,, Thus, in this article, film theory has been used to simulate molecular diffusion across two phases and shown that this theory is a practical approach for modeling the double cross-phase diffusion mechanism introduced in this work. A schematic of molecular diffusion fluxes is shown in Figure , which indicates that the molecular diffusion flux of components directly relates to the chemical potential gradient.…”

“…This theory represents that the components of oil and gas diffusion fluxes cross the interface to reach the chemical equilibrium. 20 , 21 This concept has also been used in petroleum engineering to model the molecular diffusion in gas injection processes. 14 , 18 , 22 , 23 Thus, in this article, film theory has been used to simulate molecular diffusion across two phases and shown that this theory is a practical approach for modeling the double cross-phase diffusion mechanism introduced in this work.…”