Analysis of Microseismic Events from a Stimulation at Basel, Switzerland
|
|
- Britton Matthew Cooper
- 6 years ago
- Views:
Transcription
1 GRC Transactions, Vol. 31, 2007 Analysis of Microseismic Events from a Stimulation at Basel, Switzerland Hiroshi Asanuma 1, Yusuke Kumano 1, Akito Hotta 1, Ulrich Schanz 2, Hiroaki Niitsuma 1, and Markus Häring 2 1 Graduate School of Environmental Studies, Tohoku University (Japan) 2 Geothermal Explorer Ltd. (Switzerland) Keywords Microseismicity, HDR, HWR, HFR, stimulation, Basel ABSTRACT The researchers from Tohoku University, Japan, analyzed microseismic events collected during a stimulation at Basel, Switzerland in December More than 2,000 events from over 13,000 triggers were located by the single event determination (SED) method, by joint hypocenter determination (JHD), and by the coherence-collapsing method (COH-COL). The located events define a seismic cloud with a sub-vertical structure and an azimuth of N159 E, which is similar to that at Soultz. The percentage of multiplets among the located events was 75%, which was higher than that at Soultz. The spatio-temporal analysis of the microseismic locations showed clear shut-in events around the stimulated zone and continuous seismic activity after pumping, suggesting that the stress state around the reservoir was nearly critical for shear slip. Introduction Global efforts to reduce the environmental burden associated with energy production and possible regional shortages in fossil energy in the near future have stimulated the development of geothermal utilization systems in European countries recently. Geopower Basel AG with its operator Geothermal Explorers Ltd. (GEL) has been developing a cogeneration system of electrical power and heating energy (3 MW electric and 20 MW thermal) around Basel (Switzerland) since The city of Basel is located at the southern end of the Rhine Graben, which is widely regarded as one of the highest potential geothermal fields in Europe. GEL has drilled a 5,000m (TVD) deep borehole, penetrating into granitic basement from 2,516m (TVD) on, and made the first stimulation to enhance permeability in December The authors from Tohoku University, Japan have experience in the microseismic monitoring during the stimulation of worldwide HDR/HFR/EGS reservoirs as well as the stimulation of gas reservoirs (Asanuma et al., 2003, Moriya et al., 2003, Kumano et al., 2006). They have developed techniques to reduce uncertainty in microseismic mapping and have quantitatively evaluated its reliability through international collaboration. Expertise has also been developed in identifying the seismic characteristics indicative of individual fractures with multiple slip events. Coherence-based techniques have also been investigated. The current study extends this work into the semi-realtime environment needed in commercial geothermal development environment. To this end, the authors coded software to relocate microseismic events with higher reliability emphasizing the location of the similar seismic events (multiplets) within a few minutes after the occurrence of the event (Coherence-collapsing: Asanuma et al., 2003). GEL and Tohoku University have also collaborated on the coherence-based post analysis of the microseismic events collected at the Basel site and the Japanese researchers visited the Basel site for the data analysis. Although the data analysis and the interpretation are still underway, the initial outputs from this work are described in this paper. Outline of the Data The hydraulic stimulation was carried out by pumping a total of 11,500 m 3 of water into a 4,749 m bod borehole (Basel-1) for over 6 days. The whole open-hole section (from 4,378 m to 4,749 m bod) with some pre-existing permeable zones was pressurized. The maximum wellhead pressure was around 30 MPa at a flow rate of 3,000 l/min. The microseismic monitoring network consists of 6 permanent and 1 temporarily installed downhole stations (Figure 1), where multicomponent detectors were deployed. At each monitoring station the signal was digitized by a 24 bit recording system applying a sampling frequency of 1 khz. The continuous data stream was transferred via a reliable VPN link to a central server and processing system. The automatic realtime processing included event detection, traveltime picking and event location applying an exhaustive grid search algorithm. 265
2 In parallel the automatically determined P and S wave travel times were visually rechecked allowing consistent and reliable absolute event locations in near real time. During the stimulation, there were roughly 13,000 potential events detected and > 2,700 of them had reasonable picks and as well fulfilled the tight location criterions for the single event determination by GEL. The traces and picks of the located events were transferred to the researchers from Tohoku University. A simple 1D velocity model with constant velocities for the sedimentary section and the granitic basement was used throughout this study. A station correction was also used to compensate for velocity heterogeneity. A downhole geophone temporarily deployed on a ledge at 4422 bod in the injection Figure 2. Location of the microseismic events determined by the single event determination method (SED). Figure 1. Microseismic monitoring network at Basel in well (Basel-1) was used to refine the velocity model and the station corrections assuming that the initial events occurred very close to the borehole. Location of the Microseismic Events The picks of P and S waves used in this study were provided by GEL to researchers from Tohoku University. These were used firstly to locate the events by the commonly used single event determination (SED) method, where the individual location and origin time of each event was determined by minimizing its residual. The locations determined by SED are shown along with the distribution of the residuals in Figure-2. The SED-determined Figure 3. Distribution of spatial error after SED. 266
3 Figure 5. Percentage of the multiplets. Figure 4. 3D distribution of residual for a synthetic event around the injection well. locations were nearly identical to those determined by GEL with maximum differences in location of no more than a few meters, although the techniques to minimize the residuals were different. To assess the reliability of the mapping we evaluated the spatial distribution of the residual and calculated confidence ellipsoids (spatial 1σ surface) for each event. These are represented by their three principle axes in Figure-3. The spatial distribution of the residual for a synthetic event around the injection well was also determined to see if the imposed station geometry introduces inhomogeneity into the error distribution (Figure-4) for the case of no error in the phase picking. The trace from monitoring well Riehen2 was used for event clustering because it showed best signal to noise ratio and bandwidth. For each event, the trace was cut by a time window with a length of 512 ms at around the arrival of the S wave, and the average coherency in the frequency range from 40 Hz - 97 Hz (resolution Hz) was then evaluated. A coherency threshold of 0.68 was used to identify multiplets. This threshold has previously been established by the authors through experiments. In this study, we have clustered events under a criterion such that any event with at least one coherency link to the other events within a cluster is included in that multiplet cluster. In effect this means that within a multiplet cluster there may be some pairs of events which do not have direct coherence links. A circular graphic chart of the multiplet percentage is shown in Figure-5. Figure-6 shows a example traces of identified multiplets. Figure 6. An example of multiplet group at Reihen-2 station. Figure 7. Location of the events after the Coherence-collapsing (black circles: multiplets, grey circles: single events). 267
4 Figure 8. Source migration after the Coherence-collapsing (black circles: multiplets, grey circles: single events). As a next step all events were relocated by a joint hypocenter determination (Frohlich, 1979). The resulting hypocenters of the multiplets and incoherent events (single events) were then relocated by the Coherence-collapsing method (Asanuma et al., 2003), which is a variation of a statistical optimization technique of the whole cloud, the Collapsing method (Jones and Stewart, 1997). The distribution of the events after the Coherence-collapsing is shown in Figure-7, where multiplets are plotted by solid black circles over single events in grey circles. The microseismic source migration is plotted with the hydraulic record from the stimulation in Figure-8. Current Interpretation From the results shown in Figures 2-8, the authors currently interpret the characteristics of the microseismic events and the response of the stimulated rock mass as follows: * Generally, the collected microseismic signals had reasonable signal to noise ratio (SNR) for reliable picking and coherency evaluation. The introduction of a 24 bit high resolution acquisition system made it possible to analyze events with a wide variation in magnitude. It should also be noted that the station geometry did not impose any strong heterogeneous error distribution. The residual in the SED is around 5 ms, which corresponds to an error ellipsoid (1 σ) with a size of around 40 m. The confidence ellipsoids had vertical and horizontal orientations which are consistent with that of the whole seismic cloud. However, considering the size of the error ellipsoids, it is unlikely that the orientation of the seismic cloud is strongly affected by the error. * The seismic cloud showed a subvertical and nearly planar structure with an orientation at N159 E. This trend is similar to the seismic cloud at Soultz which suggests that the stress state and orientation of the pre-existing fractures may be similar at both sites in the Rhine Graben. * The percentage of multiplets (around 70%) is smaller than that for the data from the Australian HFR site in the Cooper Basin (96%) (Asanuma et al., 2004), where two or three large existing fracture zones with a subhorizontal orientation were mainly stimulated. On the other hand, the percentage of multiplets for the data collected at Soultz was only around 37% (shallow reservoir), and 58% (deep reservoir) (Moriya et al., 2002, 2003) suggesting that the stimulation process may be simpler at Basel than at Soultz, even though both sites are in the Rhine Graben. * After coherence-collapsing, a zone with lower seismic activity (aseismic zone) clearly appeared at the south side of the injection well. There are two possible interpretations of this aseismic zone depending on permeability. High permeability could be due to previous natural slip and associated de-stressing. This would suppress microseismicity during the hydraulic stimulation. Alternatively, the lack of seismicity could indicate a region of low permeability into which the stimulation fluid had no access. We currently understand that this aseismic zone is related to an impermeable zone because the seismic cloud extended along this aseismic zone not passing through this zone. * There is some correlation between the appearance of the multiplets and the change in the flow rate during the stimulation. These new multiplet groups tended to appear at the edge of the seismic cloud perhaps correlating with the creation of new flow paths. * Continued extension of the seismic cloud occurred after pumping stopped. These events are considered as shut-in events, which are induced by the increase of pore pressure at the edge of the stimulated zone because of vanishing of pressure loss associated with water flow (Hayashi et al., 1991). * Although the bleed valve was opened after pumping stopped, the observed microseismic activity continued for a long time. This suggests that the fractures were nearly under critical stress state for shear slip and that the stimulated zone has a rather closed hydraulic nature. 268
5 * The multiplets were widely distributed within the seismic cloud. This may be correlated with dominant flow paths created within the seismic cloud by the stimulation and increased reservoir pressure resulting in multiple slips. In principle, the orientation of the seismic structure of each multiplet group can be effectively used to interpret/ understand the reservoir creation process (Evans et al., 2005). However, the current results do not have sufficient resolution. Further relocation using high resolution relative mapping techniques will be required. Conclusion Recording and current processing of the microseismic results collected during the December 2006 hydraulic stimulation of Basel-1 has yielded useful mapping results. The quality of the seismic signal and network station geometry are satisfactory for reliable hypocenter mapping and for the continuative analysis (see below). The mapped seismic cloud of events was found to be sub-vertical and oriented at N159 E. Of the total events processed, 70% were identified as multiplets which are considered to be indicative of repeated slip on individual planes. Although further investigation is needed, we currently interpret that dominant flow paths were created through the granite rock mass by the stimulation. This encouraged the development of the multiplets. Ongoing work includes precise multiplet relocation and estimation of their origin as well as source mechanism and magnitude analyses. Acknowledgements The collaborative microseismic monitoring work was only possible with much help from Geothermal Explorers Ltd. and Geopower Basel AG, who gave us this opportunity to publish the results. We also thank Dr. Ben Dyer, Semore Seismic, and Dr. Prame Chopra, Earthinsite, for their comments and suggestions on the data analysis. Part of this study is supported by JOGMEC. References Asanuma, H., Kumano, Y., Izumi, T., Soma, N., Kaieda, H., Aoyagi, Y., Tezuka, K., Wyborn D., and Niitsuma, H., 2004, Microseismic monitoring of a stimulation of HDR reservoir at Cooper Basin, Australia, Geothermal Resources Council Transactions, v. 28, p Asanuma, H., Izumi, T., Niitsuma, H., Jones, R., and Baria, R., 2003, Development of coherence collapsing method and its application to microseismicity collected at Soultz, Geothermal Resources Council Transactions, v. 27, p Evans, K., Moriya, H., Niitsuma, H., Jones, R. H., Phillips, W. S., Genter, A., Sausse, J., and, Baria, R., 2005, Microseismicity and permeability enhancement of hydro-geologic structures during massive fluid injection into granite at 3km depth at the Soultz HDR site, Geophysical Journal International, v. 160, p Frohlich, C., 1979, An efficient method for joint hypocenter determination for large groups of earthquakes, Computational Geoscience, v. 5, p Hayashi, K., and Haimson, B. C., 1991, Characteristics of shut-in curves in hydraulic fracturing stress measurements and determination of in situ minimum compressive stress, JGR, v. 96, p Jones, R. H., and Stewart, R. C., 1997, A method for determining significant structures in a cloud of earthquakes, JGR, v. 102, p Kumano, Y., Asanuma, H., Niitsuma, H., Tezuka, K., and Kamitsuji, R., 2006, Delineation of reservoir structure at Yufutsu gas field, JAPAN by analysis of induced microseismic multiplets, SEG Expanded Abstracts, p Moriya, H., Niitsuma, and H., Baria, R., 2003, Multiplet-clustering analysis reveals structural details within the seismic cloud at the Soultz geothermal field, France, Bull. Seismological Society of America, v. 93, p Moriya, H., Miyano, S., Niitsuma, and H., Baria, R., 2002, Fracture system and stress field of Soultz deep reservoir estimated by mulisipletclustering analysis of microseismic events, Geothermal Resources Council Transactions, v. 26, p
6 270
Interpretation of Microseismic Events of Large Magnitudes Collected at Cooper Basin, Australia and at Basel, Switzerland
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Interpretation of Microseismic Events of Large Magnitudes Collected at Cooper Basin, Australia and at Basel, Switzerland Yusuke
More informationSPATIAL AND TEMPORAL DISTRBUTION OF LARGER SEISMIC EVENTS AT EUROPEAN AND AUSTRALIAN HDR SITES
PROCEEDINGS, Thirty-First Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30-February 1, 2006 SGP-TR-179 SPATIAL AND TEMPORAL DISTRBUTION OF LARGER SEISMIC
More informationMEASUREMENT OF HYDRAULICALLY ACTIVATED SUBSURFACE FRACTURE SYSTEM IN GEOTHERMAL RESERVOIR BY USING ACOUSTIC EMISSION MULTIPLET-CLUSTERING ANALYSIS
MEASUREMENT OF HYDRAULICALLY ACTIVATED SUBSURFACE FRACTURE SYSTEM IN GEOTHERMAL RESERVOIR BY USING ACOUSTIC EMISSION MULTIPLET-CLUSTERING ANALYSIS HIROKAZU MORIYA 1, HIROAKI NIITSUMA 1 and ROY BARIA 2
More informationConstraining of Focal Mechanisms of Induced Seismicity Using Borehole Logging Information
PROCEEDINGS, 43rd Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 12-14, 2018 SGP-TR-213 Constraining of Focal Mechanisms of Induced Seismicity Using Borehole
More informationMigration of Shut-in Pressure and its Effect to Occurrence of the Large Events at Basel Hydraulic Stimulation
PROCEEDINGS, 41st Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 22-24, 2016 SGP-TR-209 Migration of Shut-in Pressure and its Effect to Occurrence of the
More informationYusuke Mukuhira. Integration of Induced Seismicity and Geomechanics For Better Understanding of Reservoir Physics
Integration of Induced Seismicity and Geomechanics For Better Understanding of Reservoir Physics Yusuke Mukuhira Postdoctoral Fellow (JSPS research fellow) Department of Earth, Atmospheric, and Planetary
More informationHijiori HDR Reservoir Evaluation by Micro-Earthquake Observation
GRC Transactions, Vol. 38, 2014 Hijiori HDR Reservoir Evaluation by Micro-Earthquake Observation Hideshi Kaieda Central Research Institute of Electric Power Industry, Abiko, Chiba, Japan Keywords HDR,
More informationEstimating energy balance for hydraulic fracture stimulations: Lessons Learned from Basel
Estimating energy balance for hydraulic fracture stimulations: Lessons Learned from Basel David W. Eaton*, Department of Geoscience, University of Calgary, Calgary, Canada eatond@ucalgary.ca and Neda Boroumand,
More informationHydraulic Characteristics of the Basel 1 Enhanced Geothermal System
GRC Transactions, Vol. 33, 9 Hydraulic Characteristics of the Basel 1 Enhanced Geothermal System Florentin Ladner and Markus O. Häring Geothermal Explorers International Ltd, Switzerland Keywords Geothermal,
More informationHDR PROJECT SOULTZ: HYDRAULIC AND SEISMIC OBSERVATIONS DURING STIMULATION OF THE 3 DEEP WELLS BY MASSIVE WATER INJECTIONS
PROCEEDINGS, Thirty-Second Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 22-24, 27 SGP-TR-183 HDR PROJECT SOULTZ: HYDRAULIC AND SEISMIC OBSERVATIONS DURING
More informationMultiplet-clustering Analysis Reveals Structural Details within Seismic Cloud at the Soultz Geothermal Field, France
Multiplet-clustering Analysis Reveals Structural Details within Seismic Cloud at the Soultz Geothermal Field, France Hirokazu Moriy, Hiroaki Niitsuma and Roy Baria Abstract Multiplet-clustering analysis
More informationLocation uncertainty for a microearhquake cluster
Analysis of location uncertainty for a microearhquake cluster: A case study Gabriela Melo, Alison Malcolm, Oleg Poliannikov, and Michael Fehler Earth Resources Laboratory - Earth, Atmospheric, and Planetary
More informationInduced Seismicity AP Note
Note Some data used in this study belongs to Geopower Basel AG. Data and concepts published in this study may not be further used without written approval of Geopower Basel AG. SERIANEX AP 3000 AP 3000
More informationESTIMATION OF DEEP SUBSURFACE STRUCTURE IN EUROPEAN HOT DRY ROCK TEST SITE, SOULTZ-SOUS-FORÊTS, FRANCE, BY USE OF THE AE REFLECTION METHOD
PROCEEDINGS, Twenty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 24-26, 2000 SGP-TR-165 ESTIMATION OF DEEP SUBSURFACE STRUCTURE IN EUROPEAN HOT
More informationFrom observations of microseismic source parameters to reservoir geomechanics
From observations of microseismic source parameters to reservoir geomechanics B. Goertz-Allmann 1, V. Gischig, C. Bachmann, and S. Wiemer AGIS workshop, 27 th November 2012 1 now at Presentation outline
More informationCONNECTIVITY ANALYSIS OF THE HABANERO ENHANCED GEOTHERMAL SYSTEM
PROCEEDINGS, Thirty-Seventh Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30 - February 1, 01 SGP-TR-194 CONNECTIVITY ANALYSIS OF THE HABANERO ENHANCED
More informationInduced seismicity in Enhanced Geothermal Systems (EGS) in Alsace, France. Jean Schmittbuhl 1
Induced seismicity in Enhanced Geothermal Systems (EGS) in Alsace, France Jean Schmittbuhl 1 Olivier Lengliné 1, Mohamed Boubacard 1, Lucie Lamourette 1, Lilas Vivin 1, Nicolas Cuenot 2 1 EOST-IPGS, Université
More informationEVALUATION OF GEOTHERMAL RESERVOIR STRUCTURES BY A NEW DOWNHOLE SEISMIC TECHNIQUE. Hiroaki Niitsuma, Motoyuki Sato, Hiroshi Asanuma, and
Niitsuma, et EVALUATON OF GEOTHERMAL RESERVOR STRUCTURES BY A NE DONHOLE SESMC TECHNQUE Hiroaki Niitsuma, Motoyuki Sato, Hiroshi Asanuma, and Monya Faculty of Engineering, Tohoku University, Sendai Japan
More informationCOUPLED HYDRO-MECHANICAL MODELLING OF THE GPK3 RESERVOIR STIMULATION AT THE EUROPEAN EGS SITE SOULTZ-SOUS-FORÊTS
PROCEEDINGS, Thirtieth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31-February 2, 25 SGP-TR-176 COUPLED HYDRO-MECHANICAL MODELLING OF THE GPK3 RESERVOIR
More informationCharacterization of Induced Seismicity in a Petroleum Reservoir: A Case Study
Characterization of Induced Seismicity in a Petroleum Reservoir: A Case Study Edmond Sze, M. Nafi Toksöz, and Daniel R. Burns Earth Resources Laboratory Dept. of Earth, Atmospheric and Planetary Sciences
More informationPure and Applied Geophysics. NICOLAS CUENOT, 1,* Catherine Dorbath, 2 and LOUIS DORBATH Introduction
Pure appl. geophys. 165 (2008) 797 828 Ó Birkhäuser Verlag, Basel, 2008 0033 4553/08/050797 32 DOI 10.1007/s00024-008-0335-7 Pure and Applied Geophysics Analysis of the Microseismicity Induced by Fluid
More informationFAULTING MECHANISMS AND STRESS TENSOR AT THE EUROPEAN HDR SITE OF SOULTZ-SOUS-FORÊTS
PROCEEDINGS, Thirtieth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31-February 2, 2005 SGP-TR-176 FAULTING MECHANISMS AND STRESS TENSOR AT THE EUROPEAN
More informationDevelopments on Microseismic Monitoring and Risk Assessment of Large-scale CO 2 Storage
Developments on Microseismic Monitoring and Risk Assessment of Large-scale CO 2 Storage Bettina Goertz-Allmann NORSAR CCS Technical Workshop, RITE, Tokyo, January 16, 2019 Outline Introduction: Induced
More informationSeismological monitoring of the GRT1 hydraulic stimulation (Rittershoffen, Alsace, France)
Seismological monitoring of the GRT1 hydraulic stimulation (Rittershoffen, Alsace, France) Mohamed Boubacar 1, Olivier Lengliné 2 1. University of Quebec, INRS 2. University of Strasbourg, EOST Summary
More informationDETAILED IMAGE OF FRACTURES ACTIVATED BY A FLUID INJECTION IN A PRODUCING INDONESIAN GEOTHERMAL FIELD
PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 DETAILED IMAGE OF FRACTURES ACTIVATED BY A FLUID INJECTION
More informationMicroseismicity applications in hydraulic fracturing monitoring
Available online atwww.scholarsresearchlibrary.com Archives of Applied Science Research, 2016, 8 (4):13-19 (http://scholarsresearchlibrary.com/archive.html) ISSN 0975-508X CODEN (USA) AASRC9 Microseismicity
More informationPREDICTIVE MODELING OF INDUCED SEISMICITY: NUMERICAL APPROACHES, APPLICATIONS, AND CHALLENGES
PREDICTIVE MODELING OF INDUCED SEISMICITY: NUMERICAL APPROACHES, APPLICATIONS, AND CHALLENGES Mark McClure Assistant Professor Petroleum and Geosystems Engineering The University of Texas at Austin Overview
More informationTheory. Summary. Introduction
Waveform similarity for quality control of event locations, time picking and moment tensor solutions Fernando Castellanos, University of Alberta. Edmonton, AB. Mirko van der Baan, University of Alberta.
More informationThe geomechanical significance of clay in geothermal reservoirs
The geomechanical significance of clay in geothermal reservoirs Carola Meller, Emmanuel Gaucher, Thomas Kohl KIT Institute of Applied Geosciences, Div. Geothermal Research, Adenauerring 20b, 76131 Karlsruhe,
More informationChapter 6. Conclusions. 6.1 Conclusions and perspectives
Chapter 6 Conclusions 6.1 Conclusions and perspectives In this thesis an approach is presented for the in-situ characterization of rocks in terms of the distribution of hydraulic parameters (called SBRC
More informationModeling pressure response into a fractured zone of Precambrian basement to understand deep induced-earthquake hypocenters from shallow injection
Modeling pressure response into a fractured zone of Precambrian basement to understand deep induced-earthquake hypocenters from shallow injection S. Raziperchikolaee 1 and J. F. Miller 1 Abstract Analysis
More informationFaulting mechanisms and stress regime at the European HDR site of Soultz-sous-Forêts, France
Geothermics 35 (2006) 561 575 Faulting mechanisms and stress regime at the European HDR site of Soultz-sous-Forêts, France Nicolas Cuenot a,1, Jean Charléty a,, Louis Dorbath a,b, Henri Haessler a a Institut
More informationObservation of shear-wave splitting from microseismicity induced by hydraulic fracturing: A non-vti story
Observation of shear-wave splitting from microseismicity induced by hydraulic fracturing: A non-vti story Petr Kolinsky 1, Leo Eisner 1, Vladimir Grechka 2, Dana Jurick 3, Peter Duncan 1 Summary Shear
More informationSHALE GAS AND HYDRAULIC FRACTURING
SHALE GAS AND HYDRAULIC FRACTURING JAMES VERDON FRONTIERS IN EARTH SCIENCES (EASC M0016) WEDNESDAY 29.11.2011 Tight gas reservoirs have permeability of 0.1mD or less difficult to produce at economic rates.
More informationLabEx G-EAU-THERMIE PROFONDE Appel à projet 2014 / 2015
LabEx G-EAU-THERMIE PROFONDE Appel à projet 2014 / 2015 1 Fabienne Reiser (Ph.D), 1 Cedric Schmelzbach, 1 Stewart Greenhalgh, 2 Adnand Bitri, 3 Jean-Michel Marthelot 1 Institute of Geophysics, Department
More informationNumerical Simulation of Hydraulic Shearing in Fractured Reservoir
Proceedings World Geothermal Congress 5 Antalya, Turkey, 4-9 April 5 Numerical Simulation of Hydraulic Shearing in Fractured Reservoir Kazuhiko Tezuka, Tetsuya Tamagawa and Kimio Watanabe 1--1 Hamada,
More informationMicroseismic monitoring of borehole fluid injections: Data modeling and inversion for hydraulic properties of rocks
GEOPHYSICS, VOL. 68, NO. 2 (MARCH-APRIL 2003); P. 685 689, 5 FIGS. 10.1190/1.1567239 Short Note Microseismic monitoring of borehole fluid injections: Data modeling and inversion for hydraulic properties
More informationCHANGES OF COULOMB FAILURE STRESS DUE TO DISLOCATIONS DURING STIMULATION OF GPK2 AT SOULTZ-SOUS-FORÊTS
PROCEEDINGS, Thirty-Seventh Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30 - February 1, 2012 SGP-TR-194 CHANGES OF COULOMB FAILURE STRESS DUE TO DISLOCATIONS
More informationMonte-Carlo Simulations of EGS Stimulation Phase with a 3-D Hybrid Model Dimitrios Karvounis and Stefan Wiemer
Monte-Carlo Simulations of EGS Stimulation Phase with a 3-D Hybrid Model Dimitrios Karvounis and Stefan Wiemer 11.03.2015 Enhanced Geothermal System in Basel In Basel: A vertical well was drilled until
More informationPART I Hot Dry Rock Geothermal Energy: History and Potential of the Newest and Largest Renewable Energy Resource
Contents PART I Hot Dry Rock Geothermal Energy: History and Potential of the Newest and Largest Renewable Energy Resource Chapter 1 Serendipity A Brief History of Events Leading to the Hot Dry Rock Geothermal
More information** New Energy and Industrial Technology Development Organization (NEDO) Keisoku Co., Ltd. (CK)
et Micro-Earthquake Data Processing and Analysis System (MEPAS), a Software for Geothermal Applications Shin-ichi Shigeo * Takashi Japan Metals and Chemicals Co., Ltd. ** New Energy and Industrial Technology
More informationHigh-resolution analysis of microseismicity related to hydraulic stimulations in the Berlín Geothermal Field, El Salvador
High-resolution analysis of microseismicity related to hydraulic stimulations in the Berlín Geothermal Field, El Salvador Grzegorz Kwiatek 1, Fatih Bulut 1 Marco Bohnhoff 1, Georg Dresen 1 1) GFZ Potsdam,
More informationMicroseismic Activity Induced During Recent Circulation Tests at the Soultz-sous-Forêts EGS Power Plant
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Microseismic Activity Induced During Recent Circulation Tests at the Soultz-sous-Forêts EGS Power Plant Nicolas Cuenot
More informationMicroseismic Activity Induced Under Circulation Conditions at the EGS Project of Soultz-Sous-Forêts (France)
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Microseismic Activity Induced Under Circulation Conditions at the EGS Project of Soultz-Sous-Forêts (France) Nicolas Cuenot
More informationInternal microseismic event pattern revealed by waveform cross-correlation analysis
Internal microseismic event pattern revealed by waveform cross-correlation analysis Bettina P. Goertz-Allmann, Volker Oye, Steven J. Gibbons, Robert Bauer, and Robert Will MGSC annual meeting September
More informationPUBLISHED VERSION.
PUBLISHED VERSION S. Thiel, J.R. Peacock, J. MacFarlane and G. Heinson Electromagnetic monitoring of fluid injection - lessons learned Proceedings of the 2012 Australian Geothermal Energy Conference, 2012
More informationMicroseismic Reservoir Monitoring
Microseismic Reservoir Monitoring Ann-Sophie Boivineau Geosciences Domain Leader, SIS Paris 1 aboivineau@slb.com Presentation Outline What are microseismic events? Applications of microseismic monitoring
More informationdoi: /j X x
Geophys. J. Int. (25) 16, 388 412 doi: 1.1111/j.1365-246.24.2474.x Microseismicity and permeability enhancement of hydrogeologic structures during massive fluid injections into granite at 3 km depth at
More informationNOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used
More informationGrimsel In-situ Stimulation and Circulation experiment: First results SCCER Annual meeting , Birmensdorf, Switzerland
Grimsel In-situ Stimulation and Circulation experiment: First results SCCER Annual meeting 14 15.09.2017, Birmensdorf, Switzerland J. Doetsch, F. Amann, V. Gischig, M. Jalali, H. Krietsch, B. Valley, C.
More informationMigration-based Detection and Location of the Seismicity Induced at Rittershoffen Geothermal Field (Alsace, France)
Migration-based Detection and Location of the Seismicity Induced at Rittershoffen Geothermal Field (Alsace, France) INSTITUTE OF APPLIED GEOSCIENCES DIVISION OF GEOTHERMAL RESEARCH Emmanuel GAUCHER (KIT)
More informationLocating Events using Borehole Microseismic Monitoring by Inclusion of Particle Motion Analysis
Locating Events using Borehole Microseismic Monitoring by Inclusion of Particle Motion Analysis Balikpapan, October 5th-8th, 2015 REXHA VERDHORA RY Geophysical Engineering Institut Teknologi Bandung ANDRI
More informationAn Investigation on the Effects of Different Stress Regimes on the Magnitude Distribution of Induced Seismic Events
An Investigation on the Effects of Different Stress Regimes on the Magnitude Distribution of Induced Seismic Events Afshin Amini, Erik Eberhardt Geological Engineering, University of British Columbia,
More informationAn Open Air Museum. Success breeds Success. Depth Imaging; Microseismics; Dip analysis. The King of Giant Fields WESTERN NEWFOUNDLAND:
VOL. 7, NO. 4 2010 GEOSCIENCE & TECHNOLOGY EXPLAINED GEO EXPRO VOL. 7, NO. 4 2010 Success breeds Success geoexpro.com Country Profile: Senegal Ocean Bottom Node Seismic WESTERN NEWFOUNDLAND: An Open Air
More informationNOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTIC CONCRNING COPYRIGHT RSTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used for
More informationGeothermal Induced Seismicity : Summary of International Experience IEA-GIA Environmental Mitigation Workshop Taupo, June 2012
Geothermal Induced Seismicity : Summary of International Experience IEA-GIA Environmental Mitigation Workshop Taupo, 15-16 June 2012 1 Chris Bromley, Wairakei Research Centre, Taupo, New Zealand 1.0 Background
More informationTensor character of pore pressure/stress coupling in reservoir depletion and injection
Tensor character of pore pressure/stress coupling in reservoir depletion and injection Müller, B., Altmann, J.B., Müller, T.M., Weißhardt, A., Shapiro, S., Schilling, F.R., Heidbach, O. Geophysical Institute
More informationThe Coso Geothermal Area: A Laboratory for Advanced MEQ Studies for Geothermal Monitoring
The Coso Geothermal Area: A Laboratory for Advanced MEQ Studies for Geothermal Monitoring Bruce R. Julian U. S. Geological Survey, Menlo Park, CA 94025 USA julian@usgs.gov Gillian R. Foulger Dept. Earth
More informationInvestigation of Injection-Triggered Slip on Basement Faults: Role of Fluid Leakoff on Post Shut-In Seismicity
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Investigation of Injection-Triggered Slip on Basement Faults: Role of Fluid Leakoff on Post Shut-In Seismicity Jack Norbeck
More informationGas Shale Hydraulic Fracturing, Enhancement. Ahmad Ghassemi
Gas Shale Hydraulic Fracturing, Stimulated Volume and Permeability Enhancement Ahmad Ghassemi Tight Gas A reservoir that cannot produce gas in economic quantities without massive fracture stimulation treatments
More informationEarthquake patterns in the Flinders Ranges - Temporary network , preliminary results
Earthquake patterns in the Flinders Ranges - Temporary network 2003-2006, preliminary results Objectives David Love 1, Phil Cummins 2, Natalie Balfour 3 1 Primary Industries and Resources South Australia
More informationRELOCATION OF THE MACHAZE AND LACERDA EARTHQUAKES IN MOZAMBIQUE AND THE RUPTURE PROCESS OF THE 2006 Mw7.0 MACHAZE EARTHQUAKE
RELOCATION OF THE MACHAZE AND LACERDA EARTHQUAKES IN MOZAMBIQUE AND THE RUPTURE PROCESS OF THE 2006 Mw7.0 MACHAZE EARTHQUAKE Paulino C. FEITIO* Supervisors: Nobuo HURUKAWA** MEE07165 Toshiaki YOKOI** ABSTRACT
More informationPermeability creation and damage due to massive fluid injections into granite at 3.5 km at Soultz: 1. Borehole observations
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110,, doi:10.1029/2004jb003168, 2005 Permeability creation and damage due to massive fluid injections into granite at 3.5 km at Soultz: 1. Borehole observations Keith
More informationPassive seismic monitoring in unconventional oil and gas
Passive seismic monitoring in unconventional oil and gas Michael Kendall, James Verdon, Alan Baird, Anna Stork and Philip Usher Bristol University Microseismicity Projects (BUMPS) Microseismicity and
More informationExtending the magnitude range of seismic reservoir monitoring by Utilizing Hybrid Surface Downhole Seismic Networks
Extending the magnitude range of seismic reservoir monitoring by Utilizing Hybrid Surface Downhole Seismic Networks Gisela Viegas*, ESG, Kingston, Ontario, Canada Gisela.Fernandes@esgsolutions.com and
More informationTectonic Seismogenic Index of Geothermal Reservoirs
Tectonic Seismogenic Index of Geothermal Reservoirs C. Dinske 1, F. Wenzel 2 and S.A. Shapiro 1 1 Freie Universität Berlin 2 KIT Karlsruhe November 27, 2012 Introduction M max reservoir location -2.0 Barnett
More informationThis paper was prepared for presentation at the Unconventional Resources Technology Conference held in Denver, Colorado, USA, August 2014.
URTeC 1922263 Utilizing Ant-tracking to Identify Slowly Slipping Faults in the Barnett Shale Noha Sameh Farghal* and Mark D. Zoback, Stanford University, Stanford, CA, USA Copyright 2014, Unconventional
More informationInvestigation of fracture zone properties using reflected seismic waves from passive microseismicity
Deep Mining 2017: Eighth International Conference on Deep and High Stress Mining J Wesseloo (ed.) 2017 Australian Centre for Geomechanics, Perth, ISBN 978-0-9924810-6-3 https://papers.acg.uwa.edu.au/p/1704_35_lynch/
More informationCoupling between deformation and fluid flow: impacts on ore genesis in fracture-controlled hydrothermal systems
Coupling between deformation and fluid flow: impacts on ore genesis in fracture-controlled hydrothermal systems Stephen F Cox Research School of Earth Sciences The Australian National University INTRODUCTION
More informationPUBLICATIONS. Geophysical Research Letters. Linking microearthquakes to fracture permeability change: The role of surface roughness
PUBLICATIONS RESEARCH LETTER Key Points: A plausible scale dependence for channeling flow through joints and faults is formulated A quantitative relation between the moment magnitude of MEQs and the fracture
More informationMicroseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures
Microseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures Drew Chorney, Byungtark Lee, Shawn Maxwell (IMaGE) Summary Geomechanical modelling is a powerful tool to quantitatively
More informationMicroearthquake (MEQ) Investigation Reveals the Sumatran Fault System in Hululais Geothermal Field, Bengkulu, Indonesia
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Microearthquake (MEQ) Investigation Reveals the Sumatran Fault System in Hululais Geothermal Field, Bengkulu, Indonesia
More informationHigh fluid pressure and triggered earthquakes in the enhanced geothermal system in Basel, Switzerland
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 117,, doi:10.1029/2011jb008980, 2012 High fluid pressure and triggered earthquakes in the enhanced geothermal system in Basel, Switzerland Toshiko Terakawa, 1 Stephen
More informationComparison of Microseismic Results in Complex Geologies Reveals the Effect of Local Stresses on Fracture Propagation
Comparison of Microseismic Results in Complex Geologies Reveals the Effect of Local Stresses on Fracture Propagation Mike Preiksaitis, Sheri Bowman, Ted Urbancic ESG Canada Inc. Summary Understanding the
More informationMapping the Preferential Flow Paths within a Fractured Reservoir
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Mapping the Preferential Flow Paths within a Fractured Reservoir Takuya Ishibashi 1, Noriaki Watanabe 2, Tetsuya Tamagawa
More informationDiscrete Element Modeling of Thermo-Hydro-Mechanical Coupling in Enhanced Geothermal Reservoirs
PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California Discrete Element Modeling of Thermo-Hydro-Mechanical Coupling in Enhanced Geothermal Reservoirs
More informationKinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy)
Kinematic inversion of pre-existing faults by wastewater injection-related induced seismicity: the Val d Agri oil field case study (Italy) Buttinelli M., Improta L., Bagh S., Chiarabba C. 1/10 The Val
More informationFocal Mechanism Analysis of a Multi-lateral Completion in the Horn River Basin
Focal Mechanism Analysis of a Multi-lateral Completion in the Horn River Basin Paige Snelling*, Cameron Wilson, MicroSeismic Inc., Calgary, AB, Canada psnelling@microseismic.com Neil Taylor, Michael de
More informationof other regional earthquakes (e.g. Zoback and Zoback, 1980). I also want to find out
4. Focal Mechanism Solutions A way to investigate source properties of the 2001 sequence is to attempt finding well-constrained focal mechanism solutions to determine if they are consistent with those
More informationP217 Automated P- and S-Wave Picking of Micro Earthquakes Re-Corded by a Vertical Array
P217 Automated P- and S-Wave Picking of Micro arthquakes Re-Corded by a Vertical Array T. Fischer* (Geophysical Institute, Czech Academy of Science), A. Bouskova (Geophysical Institute, Czech Academy of
More informationThe Stability Of Fault Systems In The South Shore Of The. St. Lawrence Lowlands Of Québec Implications For Shale Gas Development
The Stability Of Fault Systems In The South Shore Of The St. Lawrence Lowlands Of Québec Implications For Shale Gas Development John Brodylo, Jean-Yves Chatellier,Guillaume Matton & Michel Rheault Copyright
More informationAn improved method for hydrofracture induced microseismic. event detection and phase picking
Page 1 of 24 Geophysics Manuscript, Accepted Pending: For Review Not Production An improved method for hydrofracture induced microseismic event detection and phase picking Fuxian Song 1, H. Sadi Kuleli
More informationImaging complex structure with crosswell seismic in Jianghan oil field
INTERPRETER S CORNER Coordinated by Rebecca B. Latimer Imaging complex structure with crosswell seismic in Jianghan oil field QICHENG DONG and BRUCE MARION, Z-Seis, Houston, Texas, U.S. JEFF MEYER, Fusion
More informationAutomatic Moment Tensor Analyses, In-Situ Stress Estimation and Temporal Stress Changes at The Geysers EGS Demonstration Project
PROCEEDINGS, 42nd Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 13-15, 2017 SGP-TR-212 Automatic Moment Tensor Analyses, In-Situ Stress Estimation and
More informationWe are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors
We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists 3,500 108,000 1.7 M Open access books available International authors and editors Downloads Our
More informationGain information on the development of Engineered Geothermal Systems (EGS) and enhance our understanding of long-term reservoir behaviour.
1 GEOTHERMAL ICL was involved in the first commercial Enhanced Geothermal System (EGS) project in the EU and for over 15 years has undertaken international research programs for the monitoring of rock
More informationswisstopo, Swiss Geological Survey, Wabern, Switzerland, Lawrence Berkeley National Laboratory, Earth & Environmental Sciences Area, Berkeley, USA
Aseismic fault slip and leakage preceding an earthquake induced during an in-situ fault reactivation experiment in the Opalinus Clay, Mont Terri rock laboratory, Switzerland Christophe Nussbaum 1, Yves
More informationDetermining SAFOD area microearthquake locations solely with the Pilot Hole seismic array data
GEOPHYSICAL RESEARCH LETTERS, VOL. 31, L12S10, doi:10.1029/2003gl019403, 2004 Determining SAFOD area microearthquake locations solely with the Pilot Hole seismic array data Volker Oye NORSAR, Kjeller,
More informationChecking up on the neighbors: Quantifying uncertainty in relative event location
Checking up on the neighbors: Quantifying uncertainty in relative event location The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation
More informationSEISMIC MONITORING OF EGS STIMULATION TESTS AT THE COSO GEOTHERMAL FIELD, CALIFORNIA, USING MICROEARTHQUAKE LOCATIONS AND MOMENT TENSORS
PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 SEISMIC MONITORING OF EGS STIMULATION TESTS AT THE COSO
More informationMonitoring induced microseismic events usually
SPECIAL M i c r SECTION: o s e i s m M i ci c r o s e i s m i c Beyond the dots in the box: microseismicity-constrained fracture models for reservoir simulation Leo Eisner, Sherilyn Williams-Stroud, Andrew
More informationAcquisition and preliminary analysis of the Castle Mountain shallow VSP dataset
Castle Mountain shallow VSP Acquisition and preliminary analysis of the Castle Mountain shallow VSP dataset Joe Wong, Henry C. Bland, Kevin W. Hall and Robert R. Stewart ABSTRACT As part of the 2006 geophysics
More informationIn situ stress estimation using acoustic televiewer data
Underground Mining Technology 2017 M Hudyma & Y Potvin (eds) 2017 Australian Centre for Geomechanics, Perth, ISBN 978-0-9924810-7-0 https://papers.acg.uwa.edu.au/p/1710_39_goodfellow/ SD Goodfellow KORE
More informationAnalytical Stress Modeling for Mine related Microseismicity
Analytical Stress Modeling for Mine related Microseismicity Himanshu Barthwal and Mirko van der Baan University of Alberta Summary Microseismicity is recorded in an underground mine by a network of 7 boreholes
More informationIn situ Geothermal Lab Groß Schönebeck
In situ Geothermal Lab Groß Schönebeck As a member of the Helmholtz Association, the GeoForschungsZentrum (GFZ) is the National Research Centre for Geosciences in Germany Foundation under public law Founded
More informationA review of friction laws and their application for simulation of microseismicity prior to hydraulic fracturing
A review of friction laws and their application for simulation of microseismicity prior to hydraulic fracturing Jiyang Ye, Mirko Van Der Baan (Email: jiyang1@ualberta.ca, Mirko.VanderBaan@ualberta.ca)
More informationInduced Seismic Monitoring: Insights from a Duvernay Case Study
Induced Seismic Monitoring: Insights from a Duvernay Case Study Dario Baturan*, Emrah Yenier, Ray Morin, David Damico Presented at CSUR Induced Seismicity Workshop December 2016 1 Introduction Significant
More informationPUBLICATIONS. Geophysical Research Letters. Postinjection Normal Closure of Fractures as a Mechanism for Induced Seismicity
PUBLICATIONS Geophysical Research Letters RESEARCH LETTER Key Points: Normal closure of stimulated fractures after the termination of injection enhances postinjection seismicity Processes are strongly
More informationDuvernay Fracturing: From Microseismic Monitoring to Unconventional Fracture Model Construction
Duvernay Fracturing: From Microseismic Monitoring to Unconventional Fracture Model Construction Martin Haege, Alexey Zhmodik, Drazenko Boskovic, Venkateshwaran Ramanathan, Tina Hoffart, Qiuguo Li, and
More informationSeismic techniques for imaging fractures, cracks and faults in the Earth. Michael Kendall
Seismic techniques for imaging fractures, cracks and faults in the Earth Michael Kendall Issues and Challanges Geometry (aspect ratio, size, orientation, density) Non-uniqueness (e.g., single set of aligned
More information