Enhanced history matching process by incorporation of saturation logs as model selection criteria

Jesus Manuel Aponte*, Robert Webber, Maria Astrid Centeno, Hom Nath Dhakal, Mohamed Hassan Sayed, Reza Malakooti

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Downloads (Pure)


This paper proposes a methodology for an alternative history matching process enhanced by the incorporation of a simplified binary interpretation of reservoir saturation logs (RST) as objective function. Incorporating fluids saturation logs during the history matching phase unlocks the possibility to adjust or select models that better represent the near wellbore waterfront movement, which is particularly important for uncertainty mitigation during future well interference assessments in water driven reservoirs. For the purposes of this study, a semi-synthetic open-source reservoir model was used as base case to evaluate the proposed methodology. The reservoir model represents a water driven, highly heterogenous sandstone reservoir from Namorado field in Brazil. To effectively compare the proposed methodology against the conventional methods, a commercial reservoir simulator was used in combination with a state-of-the-art benchmarking workflow based on the Big Loop™ approach. A well-known group of binary metrics were evaluated to be used as the objective function, and the Matthew correlation coefficient (MCC) has been proved to offer the best results when using binary data from water saturation logs. History matching results obtained with the proposed methodology allowed the selection of a more reliable group of reservoir models, especially for cases with high heterogeneity. The methodology also offers additional information and understanding of sweep behaviour behind the well casing at specific production zones, thus revealing full model potential to define new wells and reservoir development opportunities.

Original languageEnglish
Pages (from-to)450-463
Number of pages14
JournalPetroleum Exploration and Development
Issue number2
Publication statusPublished - 17 Apr 2023


  • binary classification
  • geological modeling
  • history matching
  • objective function
  • reservoir model
  • saturation logs

Cite this