A shock wave fracturing method capable of repeatedly forming a liquid-electric effect discharge channel

By repeatedly forming a liquid-electric effect discharge channel in the energy converter, and using a pulsed power source to discharge in water to generate shock waves and spray electrolyte, the problems of low energy utilization and equipment damage caused by shock waves are solved, achieving efficient shock wave operation and equipment protection.

CN118008238BActive Publication Date: 2026-07-24XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Filing Date
2024-03-06
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, the shock wave generated by the electric explosion of metal wire partially acts on the energy converter, resulting in low energy utilization of the shock wave and damage to the energy converter structure. Furthermore, the equipment has poor reliability in confined spaces.

Method used

By repeatedly forming a liquid-electric effect discharge channel in the energy converter, a shock wave is generated by discharging in water using a pulsed power source, and electrolyte is sprayed to form a discharge channel between the high-voltage and low-voltage load seats. The cyclic discharge generates shock waves, avoiding the direct injection of electrolyte into a narrow space to form a discharge channel.

Benefits of technology

It improves the utilization rate of shock wave energy, reduces equipment damage, is suitable for operation in confined spaces, improves work efficiency, and saves time when replacing metal wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a shock wave fracturing method capable of repeatedly forming liquid-electric effect discharge channels, and comprises the following steps: discharging electricity to a metal wire in the middle part of an energy converter; the metal wire is electrically exploded in water to form a shock wave, most of the shock wave acts on a position to be operated; part of the shock wave acts on a jetting assembly in the lower part of the energy converter; the jetting assembly absorbs the energy of the shock wave and then compresses electrolyte, the electrolyte is sprayed out through a jetting head, and then the electrolyte is injected between a high-pressure load seat and a low-pressure load seat of the energy converter; the following process is repeated until the electrolyte cannot be sprayed out: discharging electricity to columnar electrolyte, the electrolyte generates a shock wave due to high-pressure breakdown discharge, part of the shock wave acts on the jetting assembly, and columnar electrolyte is formed again. The application solves the problems that in the prior art, part of the shock wave generated by electric explosion of the metal wire acts on the energy converter, the utilization rate of the shock wave energy is low, and part of the structure of the energy converter is damaged.
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