... Rock mechanics experiment determination shut-in pressure fractured rock mass Abstract Despite the extensive theoretical work on the subject of hydraulic fracturing for stress measurements, the amount of experimental work has thus far been limited, especially in the case of its validity...

... Abstract In situ stress is an important parameter in many aspects of rock mechanics and often displays significant variability. Among many statistics, dispersion, which denotes how scatter or spread a data group is, is an effective tool to quantify the amount of variability. One common measure...

... reservoir geomechanics edz study field Reservoir Characterization Upstream Oil & Gas complex reservoir hydraulic fracturing horizontal fracture stress interpretation excavation damage zone Rock mechanics niche fracture EDZ study area interpretation situ stress interpretation...

... and drilling-induced fractures were observed at similar depth from the borehole televiewer. The analysis combining the hydraulic fracturing results and borehole observation was carried out to make an integrated in-situ stress model at EXP-1 hole. The rock mechanical property data are based on the laboratory...

... prediction slenderness bologna university structural geology rockburst strength value loading University Rock mechanics specimen excavation Carrara marble Italy exploitation Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Studies...

... Reservoir Characterization testing result Coal Measure Upstream Oil & Gas Rock mechanics characteristic stress field vertical stress coal mining district horizontal principal stress reservoir geomechanics maximum principal stress mining district China principal stress in-situ stress...

... Chinese Journal correlation stability stress measurement principal stress Reservoir Characterization Engineering cavern rock cavern Rock stress reservoir geomechanics strength deformation rock burst Rock mechanics rock breakdown pressure breakdown pressure tunnel Rock Stress...

... pressure P b usually is the peak pressure attained in the first pressure cycle. hydraulic fracturing Rock mechanics specimen experimental result Reservoir Characterization strength hydraulic pressure borehole wall vertical direction tensile strength fracture reservoir geomechanics...

..., to determine the engineering properties of rock mechanics and achieve scientific of mining decision-making and design. It is of far reaching importance to study the crustal stress for the mineral resources prediction, energy development and large-scale projects construction. There are several kinds of in-situ...

... emitted in the moment of defects occurrence. Reservoir Characterization Rock mechanics AE signal kHz emission acoustic emission emission signature specimen frequency domain sandstone specimen fracture plane weaker bedding plane fracture Upstream Oil & Gas bedding orientation...

... current rock stress of bank slope at ‘V’ shape valley (Hudson 2003, Tan 2004, Li 2006). reservoir geomechanics cavern simulated result rock failure Reservoir Characterization Engineering Mining Science underground cavern Artificial Intelligence Rock mechanics river valley wall rock...

... Engineering resistance syncline axis structural geology strength Rock mechanics deep rock roadway failure mechanism truss deformation flexible layer truss Anchor deformation energy Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Failure...

... basic geological processes, for the study of plate tectonics, earthquakes and for rock mechanics, this last for the designing process of surface or underground structures. Concerning this later application, the NSTF was attempted to assess for the Porce III Hydroelectric Project located in Colombia...

...-pressure effects using a special rock mechanic testing machine. It is shown that when the sample was ruptured by uniaxial compression, the connective cracks instantaneously occurred accompanied by a swarm of AE activities, which suddenly decrease the fluid pore pressure. This change can be able to drive...