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Near Surface Asia Pacific Conference 2015. session "Interactions of Fluids with Fractures”
From: "Haney, Matt" <mhaney@xxxxxxxx>Near Surface Asia Pacific Conference 2015. session "Interactions of Fluids with Fractures”
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Dear colleagues,
We welcome contributions to our session at the 2015 Near Surface Asia Pacific Conference entitled "Interactions of Fluids with Fractures: Insights from Volcanology and Hydraulic Fracturing.” The session will bring together subject matter experts from volcano seismology and microseismic imaging of hydraulic fractures in industrial operations to discuss case studies, methodologies, and the status of current understanding for both applications. The cross-disciplinary discussion will provide a forum to exchange information and will provide a unique opportunity to explore the interaction of fluids within fracture systems from two divergent technical communities. Please find the complete session description copied below.
All abstracts along with application forms must be submitted electronically to nsgapc@xxxxxxx in PDF format by 6 January 2015. Student papers are encouraged. Please see the website for more information: www.seg.org/meetings/nsgapc15
Sincerely,
John Bradford, Boise State University
Matt Haney, Alaska Volcano Observatory
Shawn Maxwell, Itasca Microseismic and Geomechanical Evaluation
Paul Okubo, Hawaiian Volcano Observatory
Interactions of Fluids with Fractures: Insights from Volcanology and Hydraulic Fracturing
Studying the interactions between fluids and fractures is central to the understanding of volcanic systems and hydraulic-fracture stimulation of geothermal and petroleum wells. In both cases, passive seismic monitoring, along with other techniques, provides critical information regarding fluid migration within fractured media. Seismic monitoring of active volcanic systems started nearly 150 years ago and has spread worldwide, with a primary goal of forecasting imminent eruptions that threaten populated regions. Continued seismic monitoring has uncovered different families of volcanic seismic sources beginning with volcano-tectonic earthquakes and extending to long-period earthquakes and volcanic tremor, and improvements to monitoring technologies analysis techniques now present opportunities to quantify details of the source physics of volcanic seismogenic processes. Geodetic monitoring has become an important companion tool for articulating details of the movement of volcanic fluids, especially as volcanic sequences include significant components of aseismic ground deformation. In the case of hydraulic fracturing, operations in the oil and gas industry are typically performed in reservoirs that are well-characterized by detailed seismic reflection and wellbore logging. During controlled injection, reservoir engineers can track fluid pressures, flow rates, and flow volumes. Further insights into the fracturing process and the fracture network are often gained by passive monitoring of microearthquakes whose magnitudes are typically less than zero. Complimentary geophysical monitoring in oil and gas production areas with tiltmeters, downhole pressure transducers, temperature changes and tracers within the injection fluids provide further insights into fluid movements and fracturing. In certain circumstances the injected fluids can activate pre-existing faults and, in a few notable instances, this has led to larger magnitude seismicity. In these scenarios, injection operations are beginning to utilize monitoring based ‘traffic light systems’ to mitigate seismic hazard by modifying the injections based on recorded seismicity.
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/
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