Social and Behavioral Sciences Commons^™

Proximity Ae Doublets Analysis For Subsurface Fracture Measurement., Koji Nagano

Western Division, Canadian Association of Geographers

Proximity Acoustic Emission (AE) doublets analysis is used for subsurface fracture measurement. AE is a microseismic event. Location and shape of subsurface fracture is estimated from distribution of AE sources. Measurement of subsurface fracture is important in many areas of human activities associating with the Earth. Motion of subsurface fracture causes earthquakes. Geothermal energy is extracted from subsurface fracture reservoirs in which steam and hot water are stored. Carbon dioxide is also stored in tiny spaces of subsurface fracture. Proximity AE doublet analysis is a new method in which fine structures of subsurface fracture can be estimated. Proximity AE doublets …