A Fully Coupled Network Model, Practical Issues and Comprehensive Comparison with Other Integrated Models on Field Cases
- H. Cao (Total E&P USA) | P. Samier (Total S.A.) | H.M. Kalunga (Total S.A.) | E. Detige (Total S.A.) | E. Obi (Total S.A.)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Simulation Symposium, 23-25 February, Houston, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2015. Society of Petroleum Engineers
- 3.3.6 Integrated Modeling
- fully implicitly coupled, network modeling, field application, methods comparison
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- 383 since 2007
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There has been increasing interests in integrated simulation of reservoirs, wells and surface facilities, which is particularly important for companies with major assets in deep offshore fields. The basic approach for integration can be split into decoupled/separated (between a reservoir simulator and a facility simulator), iteratively coupled and fully coupled network, with increasing stability and efforts in implementation. This paper covers two main topics, the development of a state-of-the-art fully coupled network inside a next generation commercial reservoir simulator; the comparison of different coupling approaches on real field cases.
A fully coupled network approach has been developed as an in-house extension to a next generation multi-company collaborative reservoir simulator (which already offers decoupled approach for integrated modeling). As the details on network formulation are available from previous literatures, here we will focus on the vital yet rarely covered information on interaction between network model and typical Field Management group rate allocation scheme, e.g. the definition of well potentials.
Furthermore, this paper is also the first one to offer head-to-head comparison among all 3 approaches (decoupled, iteratively coupled and fully coupled). Here we start with a review of methodology (pros & cons) used in the 3 approaches, then follow up with comprehensive results comparison on real field level cases. To make the fairest possible comparison, the decoupled and fully coupled approaches use the same next generation reservoir simulator, and the iteratively coupled approach uses a reference legacy simulator from the same software vender. Here we demonstrate that, for studies where the fully coupled network approach can be used, it brings stability, speed and scalability.
|File Size||3 MB||Number of Pages||19|
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