一种双流体通道射流装置
By designing a dual-fluid channel jet device, the synergistic effect of high-pressure water and auxiliary media is achieved, solving the problems of high water consumption and 'water lock' effect in traditional water jets, and improving coal seam permeability and gas extraction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CCTEG CHINA COAL RES INST
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional pure water jetting consumes a large amount of water during the permeability enhancement process in low-permeability coal seams, which can easily lead to a 'water lock' effect, affecting gas extraction efficiency and hindering its widespread application.
A dual-fluid channel jet device is adopted, which promotes the expansion of primary fractures and the initiation of new fractures in the coal seam through the coordinated jetting of high-pressure water and auxiliary fluid medium, thereby improving the conductivity of the coal seam fracture network and reducing the 'water-locking' effect.
It significantly improves the overall permeability of coal seams, provides a new technological approach for efficient gas extraction from extra-thick coal seams, and reduces energy loss and coal slag accumulation during the hydraulic permeability enhancement process.
Smart Images
Figure CN120867686B_ABST