Method and device for predicting roadway effluent during ground fracturing and electronic equipment

By analyzing the pressure data and tunnel water outlet events during coal rock roof fracturing, and establishing a prediction model, the serious problem of tunnel water outlet during ground hydraulic fracturing is solved, and prediction and risk prevention of tunnel water outlet events are achieved.

CN120217092AActive Publication Date: 2025-06-27CCTEG COAL MINING RES INST
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202510287492.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2025-06-27
Estimated Expiration
2045-03-11

AI Technical Summary

Technical Problem

During the ground hydraulic fracturing process, the fracturing fracture shape is difficult to control, which often leads to the tunnel and the fracturing fracture, causing serious water outflow in the tunnel and affecting the tunnel work.

Method used

By obtaining the historical pressure data of the wellhead during the fracturing of the coal rock roof, determining the fracturing stage and pressure curve characteristics, combining the historical effluent event data set of the tunnel, establishing prior information, and predicting the effluent event of the tunnel based on this information and real-time pressure data.

Benefits of technology

The prediction of tunnel water outlet events during coal rock roof fracturing is achieved, providing theoretical and technical support for real-time adjustment of fracturing parameters and plans, improving fracturing effect, and discovering potential water outlet risks in advance, preventing the threat of water outlet events to mine production and miner safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120217092A_ABST
    Figure CN120217092A_ABST
Patent Text Reader

Abstract

The invention provides a prediction method and device for roadway water outlet during ground fracturing and electronic equipment. The method comprises the following steps: acquiring historical first pressure data of a fractured wellhead during fracturing of a coal rock roof, wherein the first pressure data at least comprises a pressure curve of the wellhead; based on the pressure curve, the fracturing stage of coal rock roof fracturing is determined, and pressure curve characteristics corresponding to the pressure curve are determined; determining a data set of a historical first water outlet event of the roadway, and determining prior information of water outlet prediction of the roadway based on the data set, the fracturing stage and the pressure curve characteristics; and predicting a second water outlet event of the roadway based on the prior information and real-time second pressure data of the fracturing wellhead. Therefore, according to the scheme, the water outlet event of the roadway during fracturing of the coal rock roof can be predicted according to a small amount of prior information, theoretical and technical supports are provided for adjusting fracturing parameters and fracturing schemes in real time, and therefore the fracturing effect is improved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Evaluation method and device for energy storage fracturing effect

    CN115324561A

  • Underground directional long drill hole hydraulic fracturing method for well-ground combined coal mine

    CN116717227A

  • Fracturing design method and device, electronic equipment and storage medium

    CN117390881A

  • Quantitative analysis method and equipment for judging hydraulic fracturing effect by fracturing curve area

    CN117967262A

  • Method and system of fracability measurement based on core fracture density

    US20210389499A1