Abstract There has been a remarkable increase in induced seismicity Western Canada and the majority of these events can be related to hydraulic fracturing operations applied develop unconventional reservoirs. The underlying mechanism such is still unclear needs investigated mitigate risks future events. In this paper, we propose new integrated approach characterize fracturing-induced seismicity...

conclusions in middle-aged subjects with psc, we found a high rate of non-vertebral fractures and a moderately decreased bmd in lumbar spine and hip. fragility fractures had an impact on physical and mental aspects of hrqol. results in 32% of patients, bmd measured in the hip or spine was below 1.0 standard deviation. a history of fragility fractures (distal forearm and ribs) was reported in si...

We apply a fully-coupled hydro-mechanical simulation tool to study fluid injection-induced pressure diffusion, poroelastic response, fracture slip, damage growth, and microseismicity occurrence in complex fault zone. The zone has low-permeability core bounded by high-permeability zone, which is characterised network with the density exponentially decaying away from core. employ discrete approac...

This study concerns some asymptotic models used to compute the flow outside and inside fractures in a bidimensional porous medium. The flow is governed by the Darcy law both in the fractures and in the porous matrix with large discontinuities in the permeability tensor. These fractures are supposed to have a small thickness with respect to the macroscopic length scale, so that we can asymptotic...

because of urgent needs of groundwater resources in the tochal region of north tehran, an integration of electric and electromagnetic methods was applied to investigate the location and the direction of water bearing fractures. first, the vlf electromagnetic profiling was performed on suitable places and two locations were detected for supplementary resistivity surveys. then, a number of vertic...

We apply a symmetry-based, statistical method for kine­ matic analysis of mesoscale fault-zone structures to resolve the trans­ port directions for the Rosario fault zone and Lopez StructuralCom­ plex in the San Juan Islands. Both moderately dipping fault zones accommodated large amounts of Late Cretaceous slip ( > 30 km), but the transport direction of nappes overlying these fault zones is con...

The article presents the results of research from Mokrzeszów site in Sudetic Foreland. Lithopetrographic and sedimentological analyses sediments Middle Polish Glaciations (Early Saalian, Odranian, MIS6) this area indicate overrepresentation (90–95%) large Scandinavian erratics. deposits, representing a repetitive sequence Gp-Gms-Sp-Sh/Sr(Dmm) lithofacies, accumulated during at least two episode...

Osteoporosis-related fractures are a major public health problem and one in two women and one in four men are affected with osteoporosis-related fractures. Alendronate (Fosamax) is one of the first bisphosphonates used to treat osteoporosis effectively. Recently, however, there is a concern regarding long bone insufficiency fractures related to long-term alendronate therapy. We report a case of...

2D and 3D seismic data basin simulation were used to investigate the gas hydrate distribution natural migration pathways in Qiongdongnan Basin (QDNB). Hydrate-related amplitude anomalies extensive bottom simulating reflectors (BSRs) mapped within uppermost part. Based on their reflection characteristics, three main types of distributions QDNB identified through high-resolution data. modeling wa...