CFD Simulation Of A Heavy Oil Reservoir With
AICV Completion
Author(s)
M. Amaratunga, K. K. Perera, V. Mathiesen & B. M. Halvorsen
Abstract
Computational Fluid Dynamics (CFD) was used to analyze the flow behaviour of
oil and water in the porous heavy oil reservoir with an Autonomous Inflow
Control Valve (AICV) installed. 2D simulations in ANSYS FLUENT 13.0 for a
50m long heavy oil reservoir section along the well were carried out with four
AICVs placed on the main production pipe.
Two different cases were modelled by changing the volume fraction
discritization scheme and the way of creating the pressure drop across the AICV.
Both cases showed a successful imitation of AICV behaviour by automatically
closing the valves completely for water and keeping them open for oil. The
simulations performed under an implicit volume fraction scheme resulted in later
breakthrough times and a diffused oil layer-like approach within the reservoir.
The simulations performed under an explicit volume fraction scheme resulted in
earlier breakthrough times and distinct flow behaviour of oil, which was
identified as fingering phenomena. The oil production rates, breakthrough times,
water migration within the reservoir and annulus were observed for both
approaches. The accumulated oil production varies from 70 to 111.6m3 due to
different breakthrough times.
Keywords: CFD, heavy oil, implicit, explicit, discritization, breakthrough,
AICV.
Keywords
CFD, heavy oil, implicit, explicit, discritization, breakthrough,AICV.
Related Book
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