17.3.2.1 Flux

The choice of flux type can be quite general. It is most common to sum the volumetric flux for all phases (streamline flux = total). However, we may also choose to generate streamlines for individual phases (streamline flux = oil, gas, or water) to visualize the flow of each phase. We may also choose to visualize the flow of individual components in a compositional simulation, or other fluxes, for instance, thermal. In these cases, the enumerated streamline flux should have the value of “other” and the optional “OtherFlux” element should be used to describe the flux. Other flux must only be used when the streamline flux is other. As the flux is time varying in reservoir simulation, the time index into a time series is mandatory. It is used to specify the time at which the flux is calculated and for which the streamlines are traced.