一种基于钢套管井电磁勘探的水力压裂地下流体监测方法、终端及可读存储介质

By deploying receiving electrodes and magnetic sensors around the wellhead of the steel casing well, and using the steel casing well as an extended electrode to generate an excitation electric field, data from advantageous measuring points can be obtained. This solves the problems of low signal-to-noise ratio and unstable operation in existing technologies, and achieves efficient and stable monitoring of underground fluids in hydraulic fracturing.

CN120468954BActive Publication Date: 2026-07-17SHENZHEN DI RUIZHI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN DI RUIZHI TECHNOLOGY CO LTD
Filing Date
2025-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing hydraulic fracturing underground fluid monitoring methods based on electromagnetic exploration of steel casing wells suffer from low signal-to-noise ratios, are easily misled by noise, resulting in low search efficiency and unstable operation.

Method used

By injecting waveform voltage into the monitoring area to generate an excitation electric field, using the steel casing well as an extended electrode, selecting advantageous measuring points to obtain electric field data, generating a hydraulic fracturing underground fluid distribution model, and using numerical simulation and alternating search methods to optimize the model parameters.

Benefits of technology

It improved the signal-to-noise ratio of the data, increased search efficiency, enhanced the stability of monitoring, reduced noise misleading, and lowered the cost of fieldwork and data processing.

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Abstract

本发明涉及岩层压裂监测技术领域,公开了一种基于钢套管井电磁勘探的水力压裂地下流体监测方法、终端及可读存储介质,所述方法包括:向监测区域注入波形电压生成激发电场;获取多个优势测点的电场数据,多个所述优势测点位于所述监测区域内任一钢套管井的设定范围内;根据所述电场数据生成水力压裂地下流体分布模型。本发明通过获取钢套管井周围的优势测点的电场,由于在钢套管井存在条件下,地下电阻率变化所造成的地面电场或磁场异常主要围绕井口出现,因此可以用更少的接收测点更有效地捕捉地下压裂液所引起的异常,数据信噪比较高,因此搜索效率高,运行稳定,不易被噪声所误导。
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Citation Information

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