The effect of PVT data quality on simulator estimation of liquid hydrocarbon recoveries under various gas sales scenarios was investigated. An extended black oil reservoir simulation model together with the fluid model from the Third SPE Comparative Solution Project1  and a gas condensate fluid from Drohm et al2  were used.

Experimental constant volume depletion (CVD) liquid saturations were modified by the method of Drohm et al2 . The unmodified and modified gas condensate data sets were used to generate equation of state (EOS) characterisations and black oil PVT tables for input to reservoir simulation.

The EOS characterisations were constrained to reproduce the liquid saturations. For the modified data it was possible to match both the observed dew point and the modified liquid saturations. However, the EOS characterisation which was matched to the raw liquid saturations underpredicted the experimentally measured dewpoint.

The applicability of the black oil simulation model is discussed and various scenarios are compared to show the influence of data corrections on simulation results.

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