What problem does it solve? Productivity and injectivity indices are often assumed without derivation, and NeqSim alone cannot answer what the rock around a well will give or take. This Skill derives those indices from reservoir physics, converts NeqSim compositional fluids into black-oil PVT tables that OPM Flow accepts, and hands the resulting inflow relationship back to NeqSim wellbore and process models. ## Core Features & Use Cases - Black-oil PVT conversion: Converts a NeqSim compositional fluid into validated PVTO, PVDG, PVTW (or PVTG/PVDO for gas condensates) deck sections, checking Rs monotonicity, Bo trends, and agreement with measured PVT. - Reservoir simulation with OPM Flow: Builds Eclipse-format radial or sector decks with pyscal-generated SWOF/SGOF tables and logarithmic near-well grids, then reads WPI/CWPI productivity indices back with resdata. - Injectivity and voidage analysis: Evaluates the endpoint mobility ratio to determine whether injectivity improves or declines as a water bank develops, and checks injectors against the voidage requirement. - Use Case: A gas condensate field must match a mandated production profile. Use this Skill to compute the dropout curve, build a VAPOIL deck with PVTG/PVDO tables, size the reservoir volume backwards from the recoverable gas, and verify well deliverability in OPM Flow. ## Quick Start Ask the agent to derive a productivity index for a well by converting a NeqSim fluid to a black-oil table and running an OPM Flow radial model.
