At its most basic level, management of subsurface fluid resources involves a system
comprising the wellbore and the target reservoir. As discrete pathways through geologic
formations, boreholes and wells are critical to the success of many water, energy, and
environmental management operations. Although many stand-alone simulators for two-
phase flow in wellbores with various levels of sophistication have been developed,
simulating non-isothermal, multiphase, and multi-component flows in both the wellbore and …