Water Curtain System Pre-design for Crude Oil Storage URCs: A Numerical Modeling and Genetic Programming Approach

Ebrahim Ghotbi Ravandi*, Reza Rahmannejad, Saeed Karimi-Nasab, Amir Sarrafi, Amir Raoof

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

In this paper the main criteria of the water curtain system for unlined rock caverns (URCs) is described. By the application of numerical modeling and genetic programming (GP), a method for water curtain system pre-design for Iranian crude oil storage URCs (common dimension worldwide) is presented. A comprehensive set of numerical simulations is performed using the finite element based commercial software (COMSOL 5.1) where the results are used as database for genetic programming. Describing equations of water inflow to the filled and empty caverns and water production rate of water curtain boreholes are generated using GP. By equating the proposed equations to each other, water curtain system can be pre-designed. Relative error of the generated GP equations shows their ability and accuracy. Applying a standard regression coefficient method, sensitivity analysis of parameters related to water curtain performance and water inflow to the caverns is performed as well. The results help the design of the water curtain system for crude oil storage caverns worldwide.

Original languageEnglish
Pages (from-to)813-826
Number of pages14
JournalGeotechnical and Geological Engineering
Volume36
Issue number2
DOIs
Publication statusPublished - Apr 2018

Keywords

  • Genetic programming (GP)
  • Numerical modeling
  • Underground storage
  • Unlined rock caverns (URC)
  • Water curtain system

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