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Dive into the research topics where David P. Sahara is active.

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Featured researches published by David P. Sahara.


The 14th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2010) | 2010

Development of Hard- and Software of Microseismic for Geothermal Exploration and Monitoring: First Results

Rachmat Sule; David P. Sahara; Yosep Kusnadi; Adrianto W. Kusumo; Andri Dian Nugraha; Tedy Setiawan; Sri Widiyantoro; Toshifumi Matsuoka

The Ministry of Research and Technology (RISTEK) of Republic Indonesia launched a so called “Riset Insentif RISTEK” since 2005. This allows Indonesian researchers to be active in research activities, which its funding is higher than other research funding available in Indonesia for small group of researchers. We received this kind of funding for the year of 2010 with its theme is development of hard- and software of microseismic for geothermal exploration and monitoring. This paper describes the first achievements after the funding is granted to us 8 (eight) months ago. This research theme is grouped into 3 main activities, namely development of borehole seismometer by using MEMS, development of precise microseismic relocation technique, and development of first arrival travel time tomography software. The overall current achievements are beyond the target of first year, so that the funding will be extended for the 2nd year.


International Journal of Rock Mechanics and Mining Sciences | 2014

Impact of fracture networks on borehole breakout heterogeneities in crystalline rock

David P. Sahara; Martin Schoenball; Thomas Kohl; Birgit Müller


International Journal of Rock Mechanics and Mining Sciences | 2014

Time-dependent brittle creep as a mechanism for time-delayed wellbore failure

Martin Schoenball; David P. Sahara; Thomas Kohl


Energy technology | 2017

Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology

Carola Meller; Judith Bremer; Kumar Ankit; Sabine Baur; Thomas Bergfeldt; Philipp Blum; Tina Canic; Elisabeth Eiche; Emmanuel Gaucher; Veit Hagenmeyer; Frank Heberling; Sebastian Held; Sarah Herfurth; Jörg Isele; Tobias Kling; Dietmar Kuhn; Dominik Mayer; Birgit Müller; Britta Nestler; Thomas Neumann; Fabian Nitschke; A. Nothstein; Yodha Y. Nusiaputra; Pia Orywall; Max Peters; David P. Sahara; Thorsten Schäfer; Eva Schill; Frank R. Schilling; Elisabeth Schröder


Proceedings of the World Geothermal Congress 2015, Melbourne, Australia, 19th - 25th April, 2015. Ed.: IGA | 2015

Analysis of Stress Heterogeneities in Fractured Crystalline Reservoirs

David P. Sahara; Martin Schoenball; Thomas Kohl; Birgit Mueller


International Journal of Rock Mechanics and Mining Sciences | 2017

Analysis of borehole breakout development using continuum damage mechanics

David P. Sahara; Martin Schoenball; Eleni Gerolymatou; Thomas Kohl


Proceedings of the European Geothermal Congress 2016 (EGC), Palais de la Musique et des Congres, Strasbourg, France, 19th-23rd September 2016 | 2016

Characterization of the geomechanical properties of a reservoir rock from an integrated analysis of borehole data

David P. Sahara; Carola Meller; Thomas Kohl


Proceedings of the European Geothermal Congress 2016 (EGC), Palais de la Musique et des Congres, Strasbourg, France, 19th-23rd September 2016 | 2016

Inferring stress heterogeneities in fractured crystalline reservoir from an analysis of borehole breakout

David P. Sahara; Thomas Kohl


EGW 2015 :4th European Geothermal Workshop, Strasbourg, France, 19th - 20th October 2015 | 2015

Modeling of inelastic failure leading to borehole breakout

David P. Sahara; Thomas Kohl


Geothermal research in Rhine Graben : French and German Ph.D. student day, Karlsruhe, Germany, 19th March 2013 | 2013

Role of local stress perturbations associated with active fractures in the borehole breakouts development

David P. Sahara; Thomas Kohl

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Thomas Kohl

Karlsruhe Institute of Technology

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Birgit Müller

Karlsruhe Institute of Technology

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Andri Dian Nugraha

Bandung Institute of Technology

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Rachmat Sule

Bandung Institute of Technology

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Sri Widiyantoro

Bandung Institute of Technology

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Carola Meller

Karlsruhe Institute of Technology

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A. Nothstein

Karlsruhe Institute of Technology

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Britta Nestler

Karlsruhe Institute of Technology

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Dietmar Kuhn

Karlsruhe Institute of Technology

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