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Abstract

Summary

A geologically plausible history matching workflow has been applied to a complex reservoir to improve reservoir characterization. Different structural interpretations have also been included in the formulation which allow with a single workflow to match petrophysical properties, structural interpretations, fluid properties and fault transmissibilities avoiding any regional multipliers or inconsistent discontinuities. A multiobjective optimization was formulated to assimilate production and pressure timeseries as well as well test data. An inhouse implementation of a Particle Swarm Optimization allows to efficiently solve the optimization problem and provide multiple matching solutions for an improved uncertainty quantification. The multiobjective formulation allows the decision maker to screen the matching realizations based on the degree of confidence on the difference data type as well have better control selected the most representative realizations. The workflow proposed shows good match with the observed quantities and allows a review of the initial model of the field based on the improved understanding of the dynamic response of the reservoir. It is the first step before a field development plan optimization with structural uncertainty.

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/content/papers/10.3997/2214-4609.201802138
2018-09-03
2024-04-27

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Geologically Plausible History Matching With Structural Uncertainty
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201802138
/content/papers/10.3997/2214-4609.201802138
/content/papers/10.3997/2214-4609.201802138
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