شماره ركورد كنفرانس :
5048
عنوان مقاله :
Compositional Modeling of Multi-mechanistic flow in Natural Gas Injection of Tight Gas Condensate Fractured Reservoirs – Single Block Approach
Author/Authors :
Aboulghasem ،Kazemi Nia Sharif University of Technology , Shahab ،Gerami , Cyrus ،Ghotbi Sharif University of Technology , Abdonabi ،Hashemi Petroleum University of Technology
كليدواژه :
Gas condensate , Diffusion , Muli-mechanistic , Darcian flow , Fickian flow
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
Diffusion in fractured reservoirs, unlike in unfractured reservoirs, can affect significantly the efficiency of gas injection
in oil reservoirs and recycling in gas condensate reservoirs also. Regarding of molecular diffusion drive simultaneously
with the pressure gradient drive usually refers as multi-mechanistic flow in the reservoir. A multi-mechanistic flow
environment is the result of the combined action of a Darcian flow component and a Fickian-like or diffuse flow
component taking place in hydrocarbon reservoir. In this work, single block approach saturated with a two-component
(80% methane, 20% n-pentane) synthetic gas condensate is applied to find out main mechanisms of recovery in natural
gas injection of gas condensate fractured reservoirs. Fully implicit with the using of Newton-Raphson technique was
applied to solve highly non-linear equations at this simulation model. In order to speed up the simulation technique,
Broyden updating approach is used to build jacobian matrix. At the end, it will be concluded that, diffusion
phenomenon is considerable for matrix blocks with the permeability of less than 0.01 md and it can be ignored in the
simulation of matrix blocks with permeability of higher than 0.1 md. Although, diffusion phenomenon is more
significant in simulation of two phase flow than single phase.