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Construction and Application of a Quantitative Perforation Erosion Model Based on Field Experiments
Bo Wang1, Huan Li1, Enyu Zhang1
1Petroleum Institute, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
Materials (Basel, Switzerland)
|June 13, 2025
Summary
Perforation erosion significantly impacts oil and gas well productivity. This study models perforation erosion, revealing two stages and factors like proppant size, leading to a new process that reduces erosion and boosts well productivity.
Area of Science:
- Petroleum Engineering
- Fluid Mechanics
- Materials Science
Background:
- Perforation erosion is a critical factor affecting hydraulic fracturing efficiency and oil/gas well productivity.
- Understanding perforation wear mechanisms is crucial for optimizing well performance.
Purpose of the Study:
- To develop a mathematical model for perforation erosion.
- To investigate perforation wear under high-pressure sand-carrying fluid conditions.
- To propose and validate an optimized synergistic composite process for mitigating erosion.
Main Methods:
- Development of a mathematical model integrating field data and theoretical analysis.
- Field experiments to determine correlation coefficients for perforation diameter and flow.
- Analysis of wear behavior and influencing factors, including proppant size and type.
- Determination of critical perforation friction for optimized temporary plugging.
Main Results:
- Perforation erosion occurs in two stages: roundness and diameter erosion, forming trumpet-shaped channels.
- Larger proppants and ceramic proppants cause significantly more erosion than smaller or quartz sand proppants.
- The "limited entry and temporary plugging" process reduced erosion by 35-50% and increased well productivity by 18-25%.
Conclusions:
- The developed model provides a quantitative basis for understanding perforation erosion.
- Optimized synergistic composite process effectively mitigates erosion and enhances hydraulic fracturing performance.
- This research offers practical guidance for improving oil and gas well efficiency.
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