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Method of predicting revaporization of retrograde condensate by dry gas injection

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5645662
A mathematical model is presented for predicting the revaporization of retrograde condensate liquid by dry gas injection. The primary assumptions in the model are that complete phase equilibrium exists between the gas and liquid in the model, the liquid saturation is less than the mobile liquid saturation, and that the dry gas does not bypass any rich gas as it sweeps through the model. The model calculates the phase compositions and saturations for all 10 cells, liquid phase recovery, and produced gas composition as a function of cumulative injection. The predicted results for 2 synthetic systems were found to agree favorably with the results of laboratory displacement studies. The systems investigated were a methane-normal pentane system and a sour system containing mainly methane, hydrogen sulfide, normal pentane, and normal heptane.
Research Organization:
Continental Oil Co
OSTI ID:
5645662
Report Number(s):
CONF-6809101-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE2352
Country of Publication:
United States
Language:
English