The world's largest deep geophysical integrated observatory is about to be installed at the long-term observation station of the continental scientific drilling in China. Currently, all preliminary installation preparations have been completed. This installation will be carried out in three stages: building platforms, well squeezing and logging, and instrument placement. At present, the well squeezing and logging work has started, and equipment placement is about to begin.
Reporters see that within the observation station, experts from the Institute of Geology of the Chinese Academy of Geological Sciences are working alongside numerous experts from Russia, New Zealand, and the United States. They are conducting final research and discussions on installing China’s first deep-well geophysical integrated observatory at a depth of 5158 meters underground.
The project manager of the Institute of Geology of the Chinese Academy of Geological Sciences stated that this will be the world's first geophysical integrated observatory with a depth exceeding 5000 meters. It not only fills the gap on the Chinese mainland but also marks China's entry into the forefront of global geophysical observations.
It is understood that four sets of deep-well geophysical integrated observatories will be installed, planned across four levels: Seismic and geothermal testers will be installed at depths of 1500 meters and 2500 meters; seismic, geothermal, and fluid testers will be installed at 3500 meters, and seismic and geothermal testers will be installed at 5158 meters. Installing this equipment at such depths can effectively filter out various interferences from the surface, increasing its observational sensitivity by one to two orders of magnitude compared to surface-based instruments. Thus, it can more sensitively capture various changes underground, providing more effective support for micro-seismic observations before earthquakes.
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