PDF(6738 KB)
Typical characteristics and progress in studies of the fluid injection-induced earthquake
Na ZHANG, LianQing ZHOU, ZhiHeng LI, ZengPing WEN
Prog Geophy ›› 2024, Vol. 39 ›› Issue (6) : 2188-2206.
PDF(6738 KB)
PDF(6738 KB)
Typical characteristics and progress in studies of the fluid injection-induced earthquake
In recent years, large-scale global development of the shale gas, geothermal and other energy resources has led to a large number of seismic activities in some energy exploitation areas, which have caused great social impact. This has sparked the attention of experts and academics, extensive research has been carried out and a large number of reviews have been published. This paper focuses on the fluid injection-induced earthquake caused by three typical fluid injection activities, namely wastewater reinjection, hydraulic fracturing and enhanced geothermal system.Through a large number of literature research, the author comprehensively analyzed the research status and progress of the fluid injection-induced seismic activities, summarized the spatio-temporal characteristics of fluid injection-induced seismicies, and combed the research progress of source parameters and source mechanism solutions, stress and its changes, fluid injection-induced seismic prediction and risk management and control.After comprehensive analysis, We find that: 1.Seismicity induced by fluid injection is closely related to industrial operations in time, most of which occur during injection operation and peak seismic rate during injection operation. 2.The spatial distribution of fluid injection-induced seismicity correlates with the location of the operating wells, the depth of the operating reservoir and the distribution of pre-existing faults in the area. It mainly shows the characteristics of near well hole, shallow depth, and induced earthqukes cluster along the pre-existing faults. 3.The source parameters of some fluid injection induced earthquake, such as small stress drop and non-double force component of the source mechanism solution, but whether the source parameters and the non-double couple component of the source mechanism solution are still controversial as an indicator to identify induced earthquakes. 4.The stress study of fluid injection induced earthquakes can determine the regional stress field of induced earthquakes, evaluate the stress state of pre-existing faults, and simulate the change of pore pressure to determine the seismic mechanism of induced seismic activity.5.Although some understanding of the relevant research on induced seismic activity has been obtained, further case studies and richer theoretical studies are needed to determine the seismic mechanism and characteristics of the fluid injection induced earthquake.
Water disposal / Hydraulic fracturing / Enhanced geothermal system
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感谢审稿专家提出的修改意见和编辑部的大力支持!
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