Patent ID: 11933691
Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A CO2 storage state networking monitoring device with multi-information fusion, characterized by comprising a plurality of dispersed multi-information CO2 underground monitoring devices and a ground monitoring device;
each of the multi-information CO2 underground monitoring device comprises a cable mounted at the external of a non-conductive sleeve and a preset number of multi-information sensor arrays in preset orientations; and each sensor terminal of each multi-information sensor array at least comprises orientation electrodes and a pressure sensor and is connected with the cable,
wherein each multi-information sensor array comprises a preset number of orientation electrodes which are in one orientation and vertically inserted into the non-conductive sleeve; and the pressure sensor is a multidirectional sensor;
the ground monitoring device comprises a current source, an emitting apparatus, a downhole sensor detection module and a computer center control;
the monitoring system comprises an orientation electrical signal obtaining unit, an orientation pressure signal obtaining unit, a flowing state analyzing unit, a flowing component analyzing unit, a regional CO2 state analyzing unit and a continuous monitoring unit;
the orientation electrical signal obtaining unit is configured in such a way that a single multi-information sensor array is selected through the ground monitoring device, an emitter electrode and a receiver electrode are provided, a detection current in a preset waveform is emitted by the emitter electrode, the lost detection current is received by the receiver electrode, a potential difference between the electrodes is obtained, the potential difference between the electrodes is measured by selecting another combination of the emitter electrode and the receiver electrode, all the potential differences between the electrodes in one orientation form orientation electrical signal data, electrical signal data in the another orientation is obtained by selecting another orientation electrode array until collection of all the electrical signal data in all orientations of single monitoring device is completed, and all the orientation electrical signal data is combined into single-monitoring-device electrical signal data;
the orientation pressure signal obtaining unit is configured to continuously obtain real-time pressure signals through all multidirectional pressure sensors;
the flowing state analyzing unit is configured in such a way that the single-monitoring-device electrical signal data and the real-time pressure signals are obtained by the ground monitoring device, and the real-time pressure signals are counted into a pressure signal set;
a latest pressure signal segment with a preset duration is intercepted, and the fluid flowing condition at the view of the pressure sensor is analyzed;
the single-monitoring-device electrical signal data is inverted to obtain resistivity grid distribution images in all the orientations;
the flowing component analyzing unit is configured to calculate orientation CO2 distribution and a CO2 flowing state at an electrode view based on the resistivity grid distribution images;
a CO2 flowing state at a pressure view is obtained based on orientation CO2 distribution and a fluid flowing condition at a view of a pressure sensor;
the regional CO2 state analyzing unit is configured to summarize the CO2 flowing states at the electrode view and the CO2 flowing states at the pressure view of all the CO2 underground monitoring apparatuses to obtain a CO2 flowing state between the plurality of dispersed multi-information CO2 underground monitoring devices and
obtain the CO2 regional storage state based on the CO2 flowing state between the plurality of dispersed multi-information CO2 underground monitoring devices;
the continuous monitoring unit is configured to repeat functions of the orientation electrical signal obtaining unit, the orientation pressure signal obtaining unit, the flowing state analyzing unit, the flowing component analyzing unit and the regional CO2 state analyzing unit and continuously monitor the CO2 flowing state in the region underground.