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Abstract

Summary

We propose a complete workflow for simulating different scenarios of reservoir exploitation, including various types of combinations of alkaline (A), surfactant (S) and polymer (P), namely P, S, SP, AS and ASP. The model is constructed from the numerous geological observations on a quarry located close to Ainsa town (southern Pyrenees, Spain), a well-known analogue of turbiditic complexes offshore West Africa. The workflow goes from geological description to seismic monitoring simulation and seismic attributes analysis, through geological and reservoir modelling, flow simulation and rock physics petroelastic modelling. The efficiency of chemical enhanced oil recovery by polymer injection is demonstrated, and successfully compared to conventional water flooding. For each process, the link is clear between the cube of oil saturation variation and the corresponding seismic attribute cube, such as the modulus of Hilbert transform of the difference seismic cube (monitor minus baseline) both put in the baseline time. The limit of the swept zone is clearly visible on seismic cubes. Hence, seismic monitoring between the injection and the production wells clearly allows to anticipate the success or the breakdown of the process, in order to optimize the operations in the field.

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/content/papers/10.3997/2214-4609.201700693
2017-06-12
2024-04-26

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Workflow for the Integration of Geology and Reservoir Modelling, Flow Simulation, Rock Physics and Seismic Monitoring for Evaluating EOR
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201700693
/content/papers/10.3997/2214-4609.201700693
/content/papers/10.3997/2214-4609.201700693
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