Patent ID: 8700549

Claim:
A method of predicting gas composition, comprising the steps of: (a) receiving a set of input parameters related to a fluid mixture of hydrocarbons and non-hydrocarbons fed into a multistage separator; (b) providing a training dataset; (c) randomly selecting a first set percentage of the training dataset; (d) establishing an ensemble of N empirical models, wherein N is an integer; (e) optimizing each empirical model with a genetic algorithm; (f) training each optimized empirical model with the selected first set percentage of the training dataset; (g) predicting a mole percentage of the non-hydrocarbons in said fluid mixture; (h) comparing the predicted mole percentage with the input parameters and selecting a second set percentage of badly predicted training datasets based upon a pre-set threshold error value; and (i) repeating the steps (e) through (g) N times on the second set percentage of badly predicted training datasets.