FLUID COMPOSITIONS OF HYDRAULICALLY CONNECTED HYDROCARBON STREAMS

Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving input data comprising: (i) production data from a plurality of hydraulically connected wells, and (ii) measured pressure, volume, temperature (PVT) data for a subset of the plurality of hydraulically connected wells, wherein the measured PVT data comprises gas samples and oil samples; generating, using a radial based four-dimensional model, simulated PVT data for the plurality of hydraulically connected wells not in the subset; determining, based on the simulated PVT data, respective fluid compositions for the plurality of hydraulically connected wells; aggregating, based on one or more factors, the respective fluid compositions into an aggregated composition; and flashing the aggregated composition to a desired pressure and temperature.