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Geomechanica at ARMA 2015
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Geomechanica is looking forward to presenting some recent research and development at the 49th US Rock Mechanics/Geomechanics Symposium (ARMA 2015) External link, to be held at the Westin St. Francis in San Francisco, California, from June 28 to July 1, 2015.


On Saturday June 27, 2015, Dr. Bryan Tatone will be offering a short course External link on the use of the hybrid finite-discrete element method (FEMDEM) to simulate fracture processes in rocks. The course will cover the theoretical principles of the numerical method and will offer the opportunity to gain valuable “hands-on” experience using Geomechanica’s pre-released Irazu FEMDEM software External link. We encourage petroleum, mining, geological and geotechnical engineers, graduate and post-graduate students with an interest in brittle rock behaviour to attend this short course.


The complete conference technical program can be found here External link. The topics of our oral presentations deal with the numerical simulation of hydraulic fracturing, discontinuity shearing behaviour, rock reinforcement, and thermo-mechanical wellbore instability within an FEMDEM framework. The specific titles include:

  • Paper 299 – 3D simulation of fluid-pressure-induced fracture nucleation External link
  • Paper 302 – Verification of the implementation of rock-reinforcement elements in numerical analyses based on the hybrid combined finitediscrete element method (FDEM) External link
  • Paper 304 – A combined experimental (micro-CT) and numerical (FDEM) methodology to study rock joint asperities subjected to direct shear External link
  • Paper 421 – FDEM modelling of thermo-mechanical wellbore instabilities within shale formations External link




 
Visit Geomechanica @ RETC 2015 in New Orleans
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Geomechanica is proud to be sharing an exhibit booth with SWS Canada Consultants External link at the Rapid Excavation and Tunneling Conference (RETC 2015) External link, to be held at the Sheraton New OrleansExternal link in New Orleans, Louisiana, from June 7 to June 10, 2015. Please drop by and visit us at booth 1010 of the Trade Show for details about our Irazu FEMDEM software External link and a showcase of several of our recent consulting projects. We look forward to meeting you!






 
ISRM 2015 Congress Summary
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The ISRM 2015 Congress on Rock Mechanics External link in Montreal, Canada, was an eventful conference for Geomechanica. First, we had a full house for our short course on the use of the hybrid finite-discrete element method (FEMDEM) to simulate fracture processes in rocks. If you missed it, we will be presenting similar courses at the upcoming ARMA Rock Mechanics Symposium External link in San Francisco, USA, and at the ISRM Eurock Conference External link in Salzburg, Austria.

Next, Dr. Andrea Lisjak was awarded the prestigious Manuel Rocha Medal External link by the ISRM president, Prof. Xia-Ting Feng, for his excellent PhD thesis.  You can watch the award reception on YouTube. Andrea gave his Rocha Medal 2015 lecture during the first plenary session of the conference.

ISRM President, Prof. Xia-Ting Feng, awards Dr. Andrea Lisjak with the 2015 ISRM Rocha Medal during the ISRM 2015 Congress in Montreal, Quebec
ISRM President, Prof. Xia-Ting Feng, awards Dr. Andrea Lisjak with the 2015 ISRM Rocha Medal during the ISRM 2015 Congress in Montreal, Quebec (Copyright: Riccardo Cellere & Tristan Brand)

Please get in touch with us if you would like to hear this lecture first-hand or if you have any questions. We are also happy to provide copies of the technical papers we presented at the Congress to any interested parties.




 
Geomechanica to present at the GeoConvention 2015
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Geomechanica is looking forward to presenting its latest research findings at GeoConvention 2015: GeoScience – New Horizons External link, which will be held in Calgary, Alberta, Canada, from May 4 to 8, 2015.

The complete conference technical program can be found here External link. The topics of our oral and poster presentations deal with the numerical simulation of hydraulic fracturing and thermal-related wellbore instabilities. The specific titles include:

  • Numerical investigation of the influences of rock fabrics on hydraulic fracturing operations (poster External link)
  • Numerical studies of the spatial and temporal distributions of seismic events under different confining conditions (poster External link)
  • Fully 3D simulation of fluid-pressure-driven fracturing using a novel continuum-discontinuum approach: Preliminary results
  • FDEM modelling of thermal wellbore instabilities within shale formations (poster External link)




 
ISRM Congress 2015: One-day course on rock fracturing simulation using Irazu FEMDEM software
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Geomechanica is looking forward to teaching a short course on the application of the hybrid finite-discrete element method (FEMDEM) to simulate fracture processes in rocks at the 13th International Congress on Rock Mechanics External link. The one-day course External link, instructed by Dr. Andrea Lisjak and Dr. Bryan Tatone, will be held at the Palais des Congrès de Montréal, Québec, Canada, on Sunday May 10, 2015 from 9 am to 5 pm. Morning lectures will cover the theoretical principles and main algorithms of the numerical method, with particular emphasis on the role of fracture and fragmentation processes on the overall simulation results. These theoretical lectures will be followed by the presentation of several practical simulation case studies from mining, civil, and petroleum engineering applications. In the afternoon, the participants will learn how to build simple models using Geomechanica’s Irazu FEMDEM software External link, assign correct inputs, and post process the results.

  We encourage all petroleum, mining, geological and geotechnical engineers, graduate and post-graduate students with an interest in brittle rock behaviour to attend this short course. For conference delegates, the registration fee is only $99 (inclusive of coffee breaks and lunch buffet).




 
Geomechanica’s new Irazu simulation software for modelling geomaterials
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Modelling the deformation and failure process of rock represents a challenging task due to the intrinsic characteristics of the rock material and the presence of natural discontinuities. To address the modelling challenge, Geomechanica has been developing Irazu, an innovative software package based on the hybrid finite-discrete element method (FEMDEM or FDEM), which combines conventional continuum mechanics with discrete element methods. A distinctive feature of Geomechanica’s Irazu simulation software is its ability to explicitly capture fracture and fragmentation processes in geomaterials, thus allowing complex, non-linear behaviours to be numerically reproduced. As such, existing rock mass discontinuities and heterogeneity can also be readily incorporated into simulations.

To handle the intensive computational demands of large-scale simulations, Geomechanica’s Irazu simulation software employs state-of-the-art high performance computing technology to harness the computational power of general-purpose graphics processing units (GPGPUs). With the substantial improvement in computational speed provided by these techniques, large simulations, which previously required weeks of run-time, can now be completed within a few hours.

Cavern design using FEMDEM
Cavern design using Irazu FEMDEM

Geomechanica’s Irazu is a robust, cost effective, and predictive tool that can be used:

  • in mining to optimize pillar sizing, investigate block cave evolution, and estimate the breakout and dilution;
  • in oil and gas to estimate and optimize the shape and extent of fracture network in hydraulic fracturing stimulation in unconventional reservoirs and to examine the role of pre-existing rock mass fabric;
  • to aid in risk assessment for rock engineering projects by enabling both stability analysis (hazard) and quantitative post-failure analysis (consequences);
  • to predict rock mass deformation and damage in tunnels, slopes, shafts, and dam foundations.

In addition to Standalone licenses, Irazu is available as a Cloud service. To learn more about Irazu Cloud visit: http://cloud.geomechanica.com/

To learn more about how Geomechanica’s Irazu software can help address your current rock mechanics modelling challenges, please reach out to us by calling 1-647-478-9767 or emailing us at info@geomechanica.com. Subscribe to our mailing list to get the latest updates from us.




 
Workshop on Simulation of Fluid-Driven Fracture Propagation
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Numerical simulation of fluid-driven fracture propagation is a subject of great scientific, industrial and societal interest. A two-day workshop has been organized by the Eindhoven Multiscale Institute External link of the Eindhoven University of Technology (Netherlands) to be held on April 8-9, 2015. The workshop assembles several of the most prominent researchers in this exciting field to present the-state-of-the-art research, debate novel computational strategies, identify trends and challenges in industrial applications, and discuss experimental validation and verification.


Among the speakers, Dr. Andrea Lisjak will be presenting the latest advances in the field of fluid-pressure-driven fracturing simulation using the hybrid finite-discrete element method (FEMDEM). Andrea’s lecture will describe recently-developed algorithmic solutions, present simulation results highlighting interaction mechanisms between fluid-driven fractures and natural discontinuities, and discuss the generation of synthetic seismicity. Also, the most relevant research areas in the development of Geomechanica’s Irazu FEMDEM software External link will be introduced, including (i) the development of a fully-coupled fluid flow solver, and (ii) the adoption of high-performance-computing (HPC) techniques to reduce the computational burden of FEMDEM simulations.

The workshop program can be downloaded here External link. If you wish to attend, please send an email to emi@tue.nl. Registration is free of charge but the maximum number of participants is limited to 100.