The Open Petroleum Engineering Journal


ISSN: 1874-8341 ― Volume 12, 2019

Assessing the Needs to Incorporate Completion Details in a Petroleum Reservoir Simulation Model

The Open Petroleum Engineering Journal , 2015, 8: 16-28

Liang-Biao Ouyang

Chevron Corporation, P. O. Box 5095, Bellaire, TX 77402-5095, USA.

Electronic publication date 20/2/2015
[DOI: 10.2174/1874834101508010016]

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Most of the current research and commercial reservoir simulators lack the capability to handle complex completion details like perforation tunnels in a simulation study. In most common applications, the simplified handling of completion complexity in reservoir simulations is not expected to introduce significant error in simulation results. However, it has been found that under certain circumstances, especially in high rate wells that have become more and more common in deepwater oil and profilic gas development, exclusion of the complex completion details in a reservoir simulation model would lead to nontrivial errors. New equations have been proposed to assess the needs to incorporate completion details in a reservoir simulation study based on the understanding of the fluid flow in a formation, the fluid flow along a wellbore and the fluid flow through perforation tunnels if exist. A series of sensitivity studies with different completion options under different flow and reservoir environments has been conducted to provide some guidance to improve well performance prediction through reservoir simulation. Impacts of key parameters like perforation density, perforation diameter, perforation length, wellbore length, borehole diameter, well completion configuration, well placement, reservoir permeability, reservoir heterogeneity, pressure drawdown, etc, have also been investigated.

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