Search Results - "Elsworth, Derek"

Surface characteristics and permeability enhancement of shale fractures due to water and supercritical carbon dioxide fracturing by Jia, Yunzhong, Lu, Yiyu, Elsworth, Derek, Fang, Yi, Tang, Jiren

“…Carbon dioxide (CO2) is an alternative working fluid to water for hydraulic fracturing in shale reservoirs. It offers advantages as a substitute for the use of…”
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Seismicity triggered by fluid injection-induced aseismic slip by Guglielmi, Yves, Cappa, Frédéric, Avouac, Jean-Philippe, Henry, Pierre, Elsworth, Derek

“…Anthropogenic fluid injections are known to induce earthquakes. The mechanisms involved are poorly understood, and our ability to assess the seismic hazard…”
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Thermal–hydrologic–mechanical–chemical processes in the evolution of engineered geothermal reservoirs by Taron, Joshua, Elsworth, Derek

“…In a companion paper [Taron J, Elsworth D, Min K-B. Numerical simulation of thermal–hydrologic–mechanical–chemical processes in deformable, fractured porous…”
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Permeability evolution in fractured coal: The roles of fracture geometry and water-content by Wang, Shugang, Elsworth, Derek, Liu, Jishan

“…We report laboratory experiments that investigate the permeability evolution of an anthracite coal as a function of applied stress and pore pressure at room…”
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Permeability Evolution in Natural Fractures Subject to Cyclic Loading and Gouge Formation by Vogler, Daniel, Amann, Florian, Bayer, Peter, Elsworth, Derek

“…Increasing fracture aperture by lowering effective normal stress and by inducing dilatant shearing and thermo-elastic effects is essential for transmissivity…”
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Fluid injection-induced fault slip during unconventional energy development: A review by Wu, Wei, Lu, Dazhao, Elsworth, Derek

“…An unusual increase in seismicity rate near the development and production sites of unconventional energy (e.g., natural gas and geothermal fluids) has been…”
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Production optimization in fractured geothermal reservoirs by coupled discrete fracture network modeling by Gan, Quan, Elsworth, Derek

“…•The best optimization strategy is to create two parallel permeable manifolds along the major principal stress direction.•The hydraulically interconnected…”
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Experimental investigation on dynamic strength and energy dissipation characteristics of gas outburst‐prone coal by Fan, Chaojun, Li, Sheng, Elsworth, Derek, Han, Jun, Yang, Zhenhua

“…We report laboratory experiments to investigate the dynamic failure characteristics of outburst‐prone coal using a split Hopkinson pressure bar (SHPB). For…”
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The Influence of Fracturing Fluids on Fracturing Processes: A Comparison Between Water, Oil and SC-CO2 by Wang, Jiehao, Elsworth, Derek, Wu, Yu, Liu, Jishan, Zhu, Wancheng, Liu, Yu

“…Conventional water-based fracturing treatments may not work well for many shale gas reservoirs. This is due to the fact that shale gas formations are much more…”
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Shear-induced dilatancy of fluid-saturated faults: Experiment and theory by Samuelson, Jon, Elsworth, Derek, Marone, Chris

“…Pore fluid pressure plays an important role in the frictional strength and stability of tectonic faults. We report on laboratory measurements of porosity…”
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Laboratory earthquakes decipher control and stability of rupture speeds by Dong, Peng, Xia, Kaiwen, Xu, Ying, Elsworth, Derek, Ampuero, Jean-Paul

“…Earthquakes are destructive natural hazards with damage capacity dictated by rupture speeds. Traditional dynamic rupture models predict that earthquake…”
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Role of critical stress in quantifying the magnitude of fluid-injection triggered earthquakes by Yu, Jiayi, Eijsink, Agathe, Marone, Chris, Rivière, Jacques, Shokouhi, Parisa, Elsworth, Derek

“…Here we define and report the relationship between the maximum seismic magnitude ( M ) and injection volume ( ΔV ) through fluid-injection fault-reactivation…”
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Laboratory evidence for particle mobilization as a mechanism for permeability enhancement via dynamic stressing by Candela, Thibault, Brodsky, Emily E., Marone, Chris, Elsworth, Derek

“…It is well-established that seismic waves can increase the permeability in natural systems, yet the mechanism remains poorly understood. We investigate the…”
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A relation to predict the failure of materials and potential application to volcanic eruptions and landslides by Hao, Shengwang, Liu, Chao, Lu, Chunsheng, Elsworth, Derek

“…A theoretical explanation of a time-to-failure relation is presented, with this relationship then used to describe the failure of materials. This provides the…”
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Microbially Induced Calcium Carbonate Plugging for Enhanced Oil Recovery by Song, Chenpeng, Elsworth, Derek

“…Plugging high-permeability zones within oil reservoirs is a straightforward approach to enhance oil recovery by diverting waterflooding fluids through the…”
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Changes in permeability caused by transient stresses: Field observations, experiments, and mechanisms by Manga, Michael, Beresnev, Igor, Brodsky, Emily E., Elkhoury, Jean E., Elsworth, Derek, Ingebritsen, S. E., Mays, David C., Wang, Chi-Yuen

“…Oscillations in stress, such as those created by earthquakes, can increase permeability and fluid mobility in geologic media. In natural systems, strain…”
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Numerical simulation of mixed aseismic/seismic fault-slip induced by fluid injection using coupled X-FEM analysis by Schwartzkopff, Adam K., Sainoki, Atsushi, Elsworth, Derek

“…Fluid injection into a rock mass from industrial processes can cause perceivable seismic events that may raise public concern. This seismicity can be caused by…”
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Numerical simulation of thermal-hydrologic-mechanical-chemical processes in deformable, fractured porous media by Taron, Joshua, Elsworth, Derek, Min, Ki-Bok

“…A method is introduced to couple the thermal (T), hydrologic (H), and chemical precipitation/dissolution (C) capabilities of TOUGHREACT with the mechanical (M)…”
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An accelerating precursor to predict “time-to-failure” in creep and volcanic eruptions by Hao, Shengwang, Yang, Hang, Elsworth, Derek

“…Real-time prediction by monitoring of the evolution of response variables is a central goal in predicting rock failure. A linear relation Ω̇Ω¨−1=Ctf−t has been…”
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Crustal permeability generated through microearthquakes is constrained by seismic moment by Yu, Pengliang, Mali, Ankur, Velaga, Thejasvi, Bi, Alex, Yu, Jiayi, Marone, Chris, Shokouhi, Parisa, Elsworth, Derek

“…We link changes in crustal permeability to informative features of microearthquakes (MEQs) using two field hydraulic stimulation experiments where both MEQs…”
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