- pressure, rs and rv is averaged using hydrocarbon pore volume weights.
- pvtRegions is used as input in the conversion factor calculations.
- the pvt cell of the first well cell is used as the pvt index.
(Completing a well in two different PVT regions sounds like a very bad
idea anyway)
- FIP region support is added to the rate converter also for the ebos
interface.
this makes the RateConverter stuff independent of Eigen and it
simplifies some things because the the old PVT API is designed as a
"bulk-with-derivatives" API while the rate converter code used it in
"single shot" mode without derivatives.
This commit adds a simple facility for converting component rates at
surface conditions to voidage rates at reservoir conditions. It is
intentionally limited in scope and meant to be employed only in the
context of class FullyImplicitBlackoilSolver<> or something very
similar. In particular, class SurfaceToReservoirVoidage<> assumes
that it will be used to compute conversion coefficients for
component rates to voidage rates, and that those coefficients will
typically be entered into the coefficient matrix of a linearised
residual.
Add a trivial test just to demonstrate the setup and calling
process. This is not a feature or correctness test.
