Simulation of fluid flow mechanisms in high permeability zones (Super-K) in a giant naturally fractured carbonate reservoir

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Title: Simulation of fluid flow mechanisms in high permeability zones (Super-K) in a giant naturally fractured carbonate reservoir
Author: Abu-Hassoun, Amer H.
Abstract: Fluid flow mechanisms in a large naturally fractured heterogeneous carbonate reservoir were investigated in this manuscript . A very thin layer with high permeability that produces the majority of production from specific wells and is deemed the Super -K Zone was investigated . It is known that these zones are connected to naturally occurring fractures . Fluid flow in naturally fractured reservoirs is a very difficult mechanism to understand . To accomplish this mission , the Super -K Zone and fractures were treated as two systems . Reservoir management practices and decisions should be very carefully reviewed and executed in this dual continuum reservoir based on the results of this work . Studying this dual media flow behavior is vital for better future completion strategies and for enhanced reservoir management decisions . The reservoir geology , Super -K identification and natural fractures literature were reviewed . To understand how fluid flows in such a dual continuum reservoir , a dual permeability simulation model has been studied . Some geological and production iv data were used ; however , due to unavailability of some critical values of the natural fractures , the model was assumed hypothetical . A reasonable history match was achieved and was set as a basis of the reservoir model . Several sensitivity studies were run to understand fluid flow behavior and prediction runs were executed to help make completion recommendations for future wells based on the results obtained . Conclusions and recommended completions were highlighted at the end of this research . It was realized that the natural fractures are the main source of premature water breakthrough , and the Super -K acts as a secondary cause of water channeling to the wellbore .
URI: http : / /hdl .handle .net /1969 .1 /ETD -TAMU -1590
Date: 2009-05-15

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Simulation of fluid flow mechanisms in high permeability zones (Super-K) in a giant naturally fractured carbonate reservoir. Available electronically from http : / /hdl .handle .net /1969 .1 /ETD -TAMU -1590 .

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