The robustness of seismic moment and magnitudes estimated using spectral analysis [PDF]
, 2014 calculate seismic moment. This is an important topic for operators and regulators who require good magnitude estimates when monitoring induced seismicity.
Abercrombie +36 more
core +2 more sources
Monitoring hydraulic processes with automated time-lapse electrical resistivity tomography (ALERT) [PDF]
, 2009 Hydraulic processes in porous media can be monitored in a minimally invasive fashion by time-lapse electrical resistivity tomography (ERT). The permanent installation of specifically designed ERT instrumentation, telemetry and information technology (IT)
Chambers, J.E. +6 more
core +2 more sources
Regularization strategy for the layered inversion of airborne TEM data: application to VTEM data acquired over the basin of Franceville (Gabon) [PDF]
, 2011 Airborne transient electromagnetic (TEM) is a cost-effective method to image the distribution of electrical conductivity in the ground. We consider layered earth inversion to interpret large data sets of hundreds of kilometre. Different strategies can be
Aster +26 more
core +3 more sources
Frontiers in Earth Science, 2021 Shield tunneling in highly fractured karst water-rich conditions easily results in water inrush disaster or even causes the roof of the karst caves to collapse.
Xing Huang +6 more
doaj +1 more source
Comparison of γ-ray spectrometry and ICP-MS methods for measuring radioactive heat-producing elements of rocks: a case study on borehole samples from the Sichuan Basin, China [PDF]
, 2017 We compared the consistency of γ-ray spectrometry and inductively coupled plasma mass spectrometry by analyzing measurement results of the radioactive heat-producing elements U, Th, and K from borehole samples.
Hu, Shengbiao +3 more
core +1 more source
Carsologica Sinica, 2022 A hydropower station in southwest China is located in the middle part of the fold belt between the eastern Yunnan platform and the western Guizhou platform on the Yangzi platform.
Zhigang FENG +3 more
doaj +1 more source
Sensors, 2017 Transient electromagnetic (TEM) techniques are widely used in the field of geophysical prospecting. In borehole detection, the nondestructive inspection (NDI) of a metal pipe can be performed efficiently using the properties of eddy currents.
Bo Dang +6 more
doaj +1 more source
An investigation of the basement complex aquifer system in Lofa county, Liberia, for the purpose of siting boreholes [PDF]
, 2014 Liberia is recovering from a 14 year civil war and only 51% of the rural population has access to safe drinking water. Little hydrogeological knowledge survives in Liberia, increasing the difficulty in successfully siting new boreholes.
Elster, D. +3 more
core +1 more source
Advances in Civil Engineering, 2019 Due to the influence of mining technology, some coal mines will leave mined-out areas (or goafs) in the rock mass after mining. If the distribution law and influence scope of mined-out areas cannot be accurately explored and controlled, it will bring ...
Xiao Luo +4 more
doaj +1 more source
Estimation of fracture compliance from tubewaves generated at a fracture intersecting a borehole [PDF]
, 2011 Understanding fracture compliance is important for characterizing fracture networks and for inferring fluid flow in the subsurface. In an attempt to estimate fracture compliance in the field, we developed a new model to understand tubewave generation at ...
Bakku, Sudhish Kumar +2 more
core +1 more source