Anti-scouring protection device for core end face in acid fracturing experiment
By using a combination of end-face protection discs and flow channel tubes in acid fracturing core experiments, the contact between the liquid and the core end face was isolated, solving the wear problem caused by liquid erosion and ensuring the accuracy of experimental data.
CN224416544UActive Publication Date: 2026-06-26SICHUAN HUAZE PETROLEUM TECH
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Patent Information
- Application Number
- CN202620740278.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-25
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2036-05-25
AI Technical Summary
Technical Problem
In acid fracturing core experiments, the experimental fluid directly impacts the core end face, causing wear and spalling, which affects the accuracy of the experimental data.
Method used
The protective components include an end-face protective plate and a flow channel tube. The plate is fitted onto the end of the core through a core docking groove to isolate the experimental liquid from direct contact with the core end face. The flow channel tube guides the liquid to the central area of the core to avoid scouring and erosion.
Benefits of technology
This effectively reduces the scouring pressure on the core end face, prevents end face damage, and ensures the reliability and accuracy of experimental data.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses an anti-scouring protection device for a core end face in an acid fracturing experiment, belongs to the technical field of oil and gas field development experiment equipment, and solves the technical problem that experiment liquid directly impacts the core end face through a liquid inlet channel in the acid fracturing core experiment. Comprising an experimental core body and a protection assembly, the protection assembly comprises an end face protection disc, and the end face protection disc sleeves the end part of the experimental rock core body through the rock core butt joint groove; an assembly mounting groove is formed in the center of the end face protection disc, and a flow guide channel cylinder is mounted in the assembly mounting groove. According to the utility model, the diversion channel cylinder is communicated with the interior of the rock core butt joint groove, one end of the diversion channel cylinder is in butt joint with the rock core holder liquid inlet channel, and the other end of the diversion channel cylinder is communicated with the central area of the experimental rock core body, so that experimental liquid is guided and conveyed, the flow direction of the experimental liquid is changed, and original end surface global impact is converted into central area directional conveying; the scouring pressure of the core end face is obviously reduced, and damage such as pits and peeling on the end face is avoided.
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