Anthropogenic operations involving underground fluid extraction or injection can cause
unexpectedly large and even damaging earthquakes, despite operational and regulatory …

Hydraulic fracturing (HF) is a technique that is used for extracting petroleum resources from
impermeable host rocks. In this process, fluid injected under high pressure causes fractures …

Geological storage is a valuable strategy for reducing CO 2 emissions to the atmosphere,
although seismicity induced by CO 2 injection can be a serious hazard that also becomes an …

Water and mud inrush is one of the most important geohazards in underground engineering.
The paper presents a state-of-the-art review of the current understanding of this type of …

To realize the effective extraction of high-temperature thermal energy in enhanced
geothermal system (EGS), it is necessary to explore how to efficiently construct fracture …

This article reviews laboratory experimental studies on hydraulic fracturing under triaxial and
true triaxial stress conditions in crystalline rock for geothermal purposes, and places …

In enhanced geothermal systems (EGS), the natural permeability of deep rocks is normally
not high enough and needs to be increased. Permeability increase can be achieved through …

Induced seismicity associated with fluid injection into underground formations jeopardizes
the sustainable utilization of the subsurface. Understanding the fault behavior is the key to …

Deep geothermal energy represents a key element of future renewable energy production
due to its base load capability and the almost inexhaustible resource base. Especially with …

Seismic AVO has a significant potential for fluid identification in time-lapse monitoring of the
cyclic recovery of geothermal reservoirs. With this goal, we develop an AVO method based …