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April 4, 2026Physics of Fluids

Erosion characteristics and parameter optimization for casing eroded by abrasive water jet under confining pressure: An integrated experimental–numerical–data-driven study

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Authors

JMJianyu MiJTJiren TangWLWeibo Liu

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Overview

Experimental and numerical analysis reveals erosion behavior of water jets in high-pressure environments, suggesting optimization strategies for gas development.

Key Points

  • This study aims to analyze casing erosion behavior caused by abrasive water jets under confining pressure and identify optimal operational parameters.
  • Conducted erosion tests under varying pump pressures, target distances, and jetting times with and without confining pressure.
  • Developed a coupled ALE–DEM–FEM model to simulate fluid-particle-structure interactions and validated it with experimental data.
  • Trained a WOA–SVR model on augmented datasets to predict drilling depth and diameter rates.
  • Confining pressure significantly reduced drilling efficiency, particularly at greater target distances, with an effective distance identified near 11 nozzle diameters.
  • Simulations demonstrated that confining pressure shortened the jet core and lowered peak abrasive-particle velocity.
  • The WOA–SVR models achieved high predictive accuracy (R² > 0.95) with low errors in predictions of drilling performance.

Cite This Study

Mi et al. (2026) studied this question.

synapsesocial.com/papers/69d0aefd659487ece0fa4e20https://doi.org/10.1063/5.0301735
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  1. 1PIV investigation of high Reynolds number submerged water jets at high-pressure ambient conditions2021 · 20 citations