Device, system and method for detecting geological storage state of carbon dioxide in real time

Abstract

The invention belongs to the field of environment monitoring, particularly relates to a device, a system and a method for detecting a CO2 geological sequestration state in real time, and aims to solve the problems that the existing CO2 geological sequestration state detection technology is relatively high in detection cost and cannot cope with resistance space distribution and change of a highly heterogeneous geologic body. The method comprises the following steps: selecting an emitting electrode and a receiving electrode, emitting a detection current with a preset waveform from the emitting electrode, receiving the lost detection current through the receiving electrode, obtaining a potential difference between the electrodes, traversing all possible combinations of the emitting electrode and the receiving electrode, obtaining a voltage data set of one orientation, and further calculating an orientation CO2 state. And combining the azimuth CO2 states of all the azimuths to obtain integral distribution of the CO2 states, and combining the integral distribution of the CO2 states of all the test well positions to obtain CO2 regional distribution. According to the method, the resistivity difference of the geologic body is described in a high-resolution mode, and the CO2 geological storage state is detected in a large range in real time.

Description

technical field [0001] The invention belongs to the field of environmental monitoring, and in particular relates to a device, system and method for real-time detection of the geological storage state of carbon dioxide. Background technique [0002] In recent years, a large number of CO 2 Research on the capture, utilization and storage of large amounts of CO captured in industrial processes 2 injected into rock formations deep underground, thereby permanently removing it from the atmosphere, enabling global atmospheric CO 2 emission reduction target. will CO 2 Injection into underground oil reservoirs can not only enhance the recovery rate, but also realize the permanent storage of CO 2 the goal of. Although CO 2 Geological storage technologies are maturing, but there is growing evidence that CO 2 The safety of geological storage is the technical bottleneck restricting its large-scale application. How to effectively prevent, monitor and control CO 2 leakage, ensure ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, the detection cost of the existing carbon dioxide geological storage state detection technology is relatively high, and it cannot deal with the problem of the spatial distribution and change of the electrical resistance of the strongly heterogeneous geological body, and the detection accuracy in the vertical direction Low, the present invention provides a device for real-time detection of the geological storage state of carbon dioxide, multi-directional downhole electrode equipment, and ground detection equipment;

Images