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Dissertations / Theses on the topic 'Microseisms'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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1

Zupo, Maria <1983&gt. "Secondary Microseisms Characterization and Green’s Function Extraction at the Larderello-Travale Geothermal Field (Italy)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6973/1/Zupo_Maria_tesi.pdf.

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Over the past ten years, the cross-correlation of long-time series of ambient seismic noise (ASN) has been widely adopted to extract the surface-wave part of the Green’s Functions (GF). This stochastic procedure relies on the assumption that ASN wave-field is diffuse and stationary. At frequencies <1Hz, the ASN is mainly composed by surface-waves, whose origin is attributed to the sea-wave climate. Consequently, marked directional properties may be observed, which call for accurate investigation about location and temporal evolution of the ASN-sources before attempting any GF retrieval.

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2

Zupo, Maria <1983&gt. "Secondary Microseisms Characterization and Green’s Function Extraction at the Larderello-Travale Geothermal Field (Italy)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6973/.

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Over the past ten years, the cross-correlation of long-time series of ambient seismic noise (ASN) has been widely adopted to extract the surface-wave part of the Green’s Functions (GF). This stochastic procedure relies on the assumption that ASN wave-field is diffuse and stationary. At frequencies <1Hz, the ASN is mainly composed by surface-waves, whose origin is attributed to the sea-wave climate. Consequently, marked directional properties may be observed, which call for accurate investigation about location and temporal evolution of the ASN-sources before attempting any GF retrieval.

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3

Sethi, Shipra. "Secondary microseisme Love wave generation." Thesis, Université de Paris (2019-....), 2019. https://theses.md.univ-paris-diderot.fr/SETHI_Shipra_va2.pdf.

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Le bruit sismique est l'oscillation continue de la Terre enregistrée à chaque station en l'absence de tremblement de terre. Il résulte de l'interaction entre l'atmosphère, les océans et la terre solide. Le signal dominant, appelé microséismes secondaires dans la bande de fréquences 0,1-0,3 Hz, a pour origine l'interaction non linéaire entre des ondes de gravité océaniques de même fréquence et de directions opposées. Les fluctuations de pression qui en résultent près de la surface de l'océan génèrent un signal sismique. Le signal dominant est constitué d'ondes de Rayleigh (R). Plusieurs études

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4

Davy, Céline. "Analyse du bruit microsismique associé à la houle dans l'océan Indien." Thesis, La Réunion, 2015. http://www.theses.fr/2015LARE0024/document.

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Les données sismologiques enregistrées sur les îles océaniques offrent l'opportunité d'analyser la houle via sa signature dans le "bruit" microsismique. Nous avons d'abord analysé les sources de bruit « secondaires », qui sont générées par l'interaction entre des vagues de même période dans une tempête, un cyclone ou par le phénomène de réflexion des vagues sur la côte. L'analyse des « microséismes secondaires », à l'échelle du bassin océanique, permet d'assurer un suivi spatio-temporel de la source qui les génère, même si elle est distante de plusieurs milliers de km des stations sismiques d'

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5

Reshetnikov, Anton [Verfasser]. "Microseismic reflection imaging / Anton Reshetnikov." Berlin : Freie Universität Berlin, 2013. http://d-nb.info/1045195065/34.

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6

Pugh, David James. "Bayesian source inversion of microseismic events." Thesis, University of Cambridge, 2016. https://www.repository.cam.ac.uk/handle/1810/253751.

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Rapid stress release at the source of an earthquake produces seismic waves. Observations of the particle motions from such waves are used in source inversion to characterise the dynamic behaviour of the source and to help in understanding the driving processes. Earthquakes either occur naturally, such as in volcanic eruptions and natural geothermal fields, or are linked to anthropogenic activities including hydrofracture of gas and oil reservoirs, mining events and extraction of geothermal fluids. Source inversion is very sensitive to uncertainties in both the model and the data, especially fo

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7

Leaney, W. Scott. "Microseismic source inversion in anisotropic media." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50045.

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Sedimentary rocks and shales in particular are known to be anisotropic, sometimes strongly so, and hydraulic fracturing is now common practice in shale plays to enhance the extraction of hydrocarbons. One of the ways to understand the hydraulic fracturing process is through the micro--earthquakes that it generates; it is therefore of interest to study the impact that anisotropy may have on hydraulically induced seismicity. This thesis is concerned with the inclusion of anisotropy into the geophysical forward and inverse problems of microseismic sources. Ray theory is used for the forward pr

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8

Baggaley, Paul Andrew. "Field measurements of electroseismic phenomena generated by active and passive acoustic sources." Thesis, Keele University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246874.

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9

Kat, Michael P. "Comparative studies of microseismic source location techniques." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61709.

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10

Bishop, Ian. "Passive microseismic monitoring of a hydrofracture field trial." Thesis, Cardiff University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636105.

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A sandstone formation, part of the reservoir rock comprising the Beckingham Oilfield, Nottinghamshire, was fractured by the injection of water under pressure through perforated casing, at depths of 1 km. The formation breakdown, and the repeated injection of water over a period of two weeks, was monitored by five triaxial sondes situated about the injection interval and several surface mounted geophones. Four of these sondes were situated in the treatment borehole, the fifth, in an observation borehole, approximately 280 m away. No seismicity was observed in the observation well or on the surf

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11

Hooper, Chiara Mary. "Microseismic monitoring as a site investigation tool : a feasibility study." Thesis, University of Strathclyde, 2016. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27338.

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A proof of concept for using microseismics as a site investigation tool has been developed and presented as a feasibility study utilising changes in the seismic wave Peak Particle Velocity (PPV) (m/s) and dominant frequency (Hz). The key significance of this thesis is the enhancement of near surface seismic imaging applications using a novel concept. Researchers have observed low frequencies when detecting geological features at depths greater than 100m. Mitchell, Derzhi et al. (1997) and Dilay and Eastwood (1995) have shown previously that the dominant frequency observed moved towards the low

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12

Angus, Douglas A. C. "Applicability of moment tensor inversions to mine-induced microseismic data." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ35999.pdf.

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13

Norman, Emma Catherine. "Microseismic monitoring of the controls on coastal rock cliff erosion." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3586/.

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The aim of this thesis has been to improve understanding of the controls on coastal rock cliff erosion, utilising microseismic ground motion. Coastal cliff erosion has remained poorly understood, in part confounded by the challenges associated with monitoring changes to and controls upon steep slopes in the coastal zone. As a result the relative contribution of marine to subaerial and episodic to iterative forcing is based upon models with only limited field validation. For two years, from July 2008 to July 2010, cliff top microseismic ground motions were monitored using a broadband seismomete

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14

Alampi, Ann M. "Effectiveness of microseismic monitoring for optimizing hydraulic fracturing in California." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90664.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 33).<br>Hydraulic fracturing has fundamentally changed the oil and gas industry in the past 10 years. Bakersfield, California provides a unique case study because steam injection, a type of hydraulic fracturing, has been used there for more than 60 years. Seven companies, varying in size and strategy, use steam injection in California. Some of these companies use microseismic monitoring technol

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15

Usher, Philip James. "Estimating and interpreting anisotropy and attenuation in large microseismic datasets." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702748.

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Fractures provide important fluid pathways in petroleum reservoirs. In impermeable reservoirs, like those of shale gas, fractures need to be hydraulically stimulated in order to produce from them. Stimulating such fractures causes microseismicity which can be monitored using passive seismic surveys. The goal of my thesis is to show how measurements of velocity and attenuation anisotropy from passive seismic monitoring can be used to understand reservoir properties, including fluid and fracture properties. I use three microseismic datasets: Cotton Valley, Delphi, and Rainbow from sandstone, sil

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16

Gei, Davide. "Investigation and derivation of anisotropic parameters from microseismic reservoir monitoring." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8612.

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2011/2012<br>Un materiale si definisce isotropico quando le sue proprietà non cambiano in funzione della direzione secondo cui vengono misurate. Al contrario, se il mezzo è caratterizzato da una dipendenza direzionale delle sue proprietà, è chiamato anisotropico. Tradizionalmente, l’esplorazione sismica è basata sul processamento e interpretazione di dati acustici relativi a mezzi considerati sismicamente isotropici. Tuttavia, l’isotropia è sempre un modello approssimato per descrivere le formazioni geologiche, specialmente nel caso di bacini sedimentari. L’imaging sismico e la stima delle vel

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17

Yu, Changpeng [Verfasser]. "Microseismic inversion for anisotropic velocity model in unconventional reservoirs / Changpeng Yu." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1108270921/34.

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18

Maolod, Rizgar Rassul. "The use of microseismic monitoring as a guide for gas production." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15676/.

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Numerical modelling makes it possible to consider studying microseismic events resulted from hydraulic fracturing through a synthetic model, too give us rational understandings for generation of the events and the efficiency of the fracturing process itself. The research presented in this thesis uses Discrete Element Method (DEM) approach to simulate the acoustic emissions within rock samples in order to achieve the computational modelling of the micro seismic events during hydraulic fracturing process. In terms of its relation to the fracture properties and its uses in determining the success

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19

Aleksans, Janis. "Dynamics of hydrofracturing and microseismic signals in porous versus tight rocks." Thesis, University of Glasgow, 2019. http://theses.gla.ac.uk/41079/.

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This work discusses the dynamic development of hydraulic fractures, their evolution and the resulting seismicity during fluid injection in a coupled numerical model. The model describes coupling between a solid that can fracture dynamically and a compressible fluid that can push back at the rock and open fractures. With a series of numerical simulations it is shown how the fracture pattern and seismicity change depending on changes in depth, injection rate, Young's modulus and breaking strength. Simulations indicate that the Young's modulus has the largest influence on the fracture dynamics an

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20

Verdon, James P. "Microseismic monitoring and geomechanical modelling of CO₂ storage in subsurface reservoirs." Thesis, University of Bristol, 2011. http://hdl.handle.net/1983/eb611dda-5db8-4581-ae68-b422539a2b3b.

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21

Kementzetzidou, Despina. "Étude sismotectonique du sysème Thessalie-iles Sporades (Grèce centrale)." Grenoble 1, 1996. http://www.theses.fr/1996GRE10045.

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La deformation sismique dans la region de la thessalie, de l'eubee et des iles sporades est analysee a partir de donnees microsismiques. Ces donnees ont ete recueillies par un reseau sismologique de 70 stations, operationnel pendant une periode de 2 mois, qui a permis l'enregistrement de 434 seismes. La repartition de la sismicite marque les structures recentes de direction e-w en thessalie, mais aussi les failles de direction nw-se de l'eubee. L'alignement de sismicite observe sur la faille sud du golfe pagasitikos se prolonge vers les iles sporades selon une direction ene, en accord avec la

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22

Spillmann, Thomas. "Borehole radar experiments and microseismic monitoring on the unstable Randa rockslide (Switzerland) /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16866.

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23

Oelke, Antonia [Verfasser]. "Estimating Reflection Coefficients: Theory and Application to Microseismic Waveform Data / Antonia Oelke." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1122111150/34.

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24

England, Richard James Edward. "Microseismic and infrasound monitoring of low frequency noise and vibration from windfarms." Thesis, Keele University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436184.

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25

Wardle, J. "The development and application of microseismic techniques in outburst prone coal mines." Thesis, Bucks New University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373824.

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26

Song, Fuxian. "Microseismic mapping and source characterization for hydrofracture monitoring : a full-waveform approach." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82306.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>The objective of this thesis is to improve the microseismic mapping capability for hydrofracture monitoring by using full-waveform information and understand fracturing mechanisms via microsesimic source mechanism inversion. First, we develop an array-based correlation approach to improve the detection of small magnitude events with mechanisms and locations similar to a nearby template event. Secon

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27

Rushforth, Ian Michael. "An integrated acoustic/microseismic approach to monitoring low frequency noise & vibration." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250229.

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28

Folesky, Jonas [Verfasser]. "Rupture Propagation Imaging Across Scales: from Large Earthquakes to Microseismic Events / Jonas Folesky." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1176635158/34.

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29

Bolt, Peter B. "Acquisition and interpretation of underground microseismic data in an outburst prone coal mine." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316294.

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30

Piñeros, Concha Diego Alvaro. "Imaging the Soultz Enhanced Geothermal Reservoir using double-difference tomography and microseismic data." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59791.

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Thesis (S.M. in Geophysics)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 115-116).<br>We applied the double-difference tomography method to image the P and S-wave velocity structure of the European Hot Dry Rock geothermal reservoir (also known as the Soultz Enhanced Geothermal System) at Soultz-sous-Forets, France. We used absolute, differential catalog and differential cross-correlation times obtained from the reservoir's September and October 1993 hydrauli

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31

Yfantis, Georgios. "Kinematics of soft soil landslides based on the analysis of microseismic monitoring data." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25953.

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Landslide failures are a worldwide problem claiming human lives and causing catastrophic damages to infrastructure, with their impact able to reach that of war conflicts. For these reasons this thesis is going to investigate on the use of microseismic monitoring to study the kinematic behaviour of landslides and help towards the design of an optimised early or real time warning system. All findings are based in field experiments, using 1D and 3D short period seismometers, designed to understand the capabilities and limitations of microseismic monitoring in order to enhance the first and minimi

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32

Conrad, William Jennings. "Microseismic Monitoring of a Room and Pillar Retreat Coal Mine in Southwest Virginia." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/73674.

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Ground control, one of the key elements in mine safety, is an issue that warrants continuous improvement in the underground coal industry. The United States experienced over 3,300 injuries and 42 deaths between 2006 and 2012 from the fall of a roof or rib (MSHA, 2015). Out of the underground coal mining methods, room and pillar retreat mining lacks significant research to adequately understand the rockmass behavior associated with the process. A microseismic monitoring system was installed in a retreat mine in Southwest Virginia to provide more information about the changing stress conditions

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33

Folesky, Jonas T. [Verfasser]. "Rupture Propagation Imaging Across Scales: from Large Earthquakes to Microseismic Events / Jonas Folesky." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1176635158/34.

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34

Caudron, Corentin. "Multi-disciplinary continuous monitoring of Kawah Ijen volcano, East Java, Indonesia." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209416.

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Kawah Ijen (2386 m) is a stratovolcano located within Ijen Caldera, at the easternmost<p>part of Java island in Indonesia. Since 2010, the volcano has been equipped with seismometers<p>and several sensors (temperature and level) have been immersed in its acidic lake waters and in the acidic river seeping on the volcano flanks. While finding instruments capable of resisting to such extreme conditions (pH~0) has been challenging, the coupling of lake monitoring techniques with seismic data improves the knowledge of the volcanic-hydrothermal dynamics. Moreover, the monitoring capabilities have be

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35

Drew, J. "Coalescence microseismic mapping : an imaging method for the detection and location of seismic events." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598649.

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The Coalescence Microseismic Mapping method I have developed is applicable to event detection and location for a sparse array, while still benefiting from rigorous statistical analysis by averaging data over the array. Formulated within a Bayesian framework with respect to traveltime, the automated method simultaneously identifies and quantitatively images source location, by mapping a scalar signal that characterizes both the presence and timing of a seismic arrival. Unlike traveltime inversion, the numerical approach is not restrictive in regards to the type and distribution of errors. Effec

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36

Bryan-Jones, Alistair. "Evaluation of rock mass behaviour using borehole microseismic monitoring : an application to longwall coal mining." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366358.

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37

Yousef, Baban Mustafa. "Analysis of shear-wave response to fractures : a full waveform study of microseismic fracture imaging." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/16132/.

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Naturally fractured reservoirs are playing an important role in exploration geophysics. As fractures can control the permeability and pore pressure of the reservoir, it is crucial to study the fracture characterisation. The thesis is mainly including the estimated seismic anisotropy from shear-wave splitting (SWS) observations and the study of the S-wave scattering characteristics of fractured media as well. A suite of synthetic fractured media with a broad range of fracture parameters is generated. The range of fracture parameters was chosen based on the numerical simulation and also where th

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38

Al-Harrasi, Othman Harith. "Fractured reservoir characterisation using shear-wave splitting in microseismic data : a case study from Oman." Thesis, University of Bristol, 2010. http://hdl.handle.net/1983/30288fe4-70c5-4284-afeb-adab400ed4c6.

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39

Juretzek, Carina C. [Verfasser], and Heiner [Akademischer Betreuer] Igel. "Love and Rayleigh waves in the microseismic noise field / Carina C. Juretzek ; Betreuer: Heiner Igel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://d-nb.info/1236502566/34.

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40

YIN, JIAN MIN. "Determination du champ de contrainte regional a partir de mesures hydrauliques et de mecanismes au foyer de microseismes induits." Paris 7, 1994. http://www.theses.fr/1994PA077197.

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Dans le site de recherches geothermiques du mayet de montagne (allier, france), on determiner tout d'abord le champ de contraintes par des mesures hydrauliques directes en forages. Les resultats trouves sont compatibles avec les indicateurs tectoniques regionaux et verifies par les memes mesures effectuees apres des essais de circulation d'eau de grand volume. Toutefois, deux mesures proches d'une zone fortement alteree se sont revelees heterogenes. Le meme champ de contrainte est ensuite analyse par l'inversion des mecanismes au foyer des microseismes induits par les injections. Alors que les

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41

Warren, Justin Cable. "A Study of Mine-Related Seismicity in a Deep Longwall Coal Mine." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/76766.

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This study involves seismic monitoring of a deep coal mine. The purpose is to examine the processes responsible for induced seismicity. A seismic network consisting of five three-component short-period seismometers located above the mine recorded the seismic data. The events discussed here occurred from March 1, 2009 until April 7, 2011 during the mining of three longwall panels and the data was telemetered to Blacksburg, Virginia. A correlation equation was developed to relate local magnitude estimated by automatic data processing software in near real-time to seismic moment for well-recor

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42

Smit, Louis. "Microseismic observations in the Ceres-Tulbagh aftershock zone, Western Cape, South Africa, and their tectonic implications." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/13320.

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Includes bibliographical references.<br>South Africa is considered a stable continental region where earthquakes from a tectonic source are usually of small to moderate magnitude. In September 1969 a local magnitude (ML) 6.3 sinistral strike-slip earthquake occurred near the towns of Ceres and Tulbagh in the Western Cape, South Africa. This is still the largest earthquake in instrumental history in South Africa. During 2012, a temporary seismic array of 15 surface stations was deployed for a 3 month period in the aftershock zone of the 1969 Ceres earthquake. A total of 168 microseismic events

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43

Holcomb, Andrew. "INITIAL MICROSEISMIC RECORDINGS AT THE ONSET OF UNCONVENTIONAL HYDROCARBON DEVELOPMENT IN THE ROME TROUGH, EASTERN KENTUCKY." UKnowledge, 2017. http://uknowledge.uky.edu/ees_etds/51.

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The Cambrian Rogersville Shale is a part of a hydrocarbon system in the Rome Trough of eastern Kentucky and West Virginia that can only be produced unconventionally. In Kentucky, the Rogersville Shale ranges in depth from ~1,800 to ~3,700 m below the surface with the crystalline basement ~1,000 m lower than the formation’s base. Baseline Rome Trough microseismicity data were collected, focusing on wastewater injection wells and recently completed and planned unconventional hydrocarbon test wells in the Rogersville Shale, using thirteen broadband seismic stations installed between June, 2015 an

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44

Neuffer, Tobias [Verfasser], Wolfgang [Gutachter] Friederich, and Christine [Gutachter] Thomas. "Microseismic noise induced by wind turbines / Tobias Neuffer ; Gutachter: Wolfgang Friederich, Christine Thomas ; Fakultät für Geowissenschaften." Bochum : Ruhr-Universität Bochum, 2020. http://d-nb.info/1212663942/34.

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45

Birnie, Claire Emma. "Statistical methods for ambient noise characterisation, modelling and suppression : theory and applications for surface microseismic monitoring." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20542/.

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An ever-present feature in seismic data, noise affects outcomes of processing and imaging algorithms, causing uncertainty in the interpretation of results. Despite abundant evidence that noise is not white, stationary or Gaussian, these assumptions are commonly made when generating noise models and processing data. While synthetic seismic datasets have evolved to include geological complexities, a standardised approach to incorporating realistic noise does not yet exist. The aim of this work is to introduce a noise modelling methodology that avoids the above assumptions. A statistical analysis

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46

CUTRONEO, LAURA. "Use of microseismic data to monitor significant sea wave heights in support of marine weather forecasting and coastal protection." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1076418.

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The focus of the Ph.D. project was the implementation of a network for monitoring significant sea wave heights (Hs) along the Ligurian coasts (north-western Mediterranean Sea), in order to provide near-real time data to weather forecasters and sea users (vessel captains, pilots, Coast Guard, Port Authorities and yachtsmen). The project was divided into a part dedicated to the use of microseismic data, interfaced with data derived from modelling hindcasts and from the wave buoy of Capo Mele, for the determination of Hs, and a part dedicated to the Interreg Italy-France Maritime 2014-2020 SINAPS

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47

Hassani, Hossein [Verfasser], Stefan [Akademischer Betreuer] Buske, Stefan [Gutachter] Buske, and Michael [Gutachter] Korn. "Microseismic event location and passive seismic imaging of crustal structures / Hossein Hassani ; Gutachter: Stefan Buske, Michael Korn ; Betreuer: Stefan Buske." Freiberg : Technische Universität Bergakademie Freiberg, 2019. http://d-nb.info/1220636487/34.

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48

Gilliland, Ellen. "Integrative Geophysical and Environmental Monitoring of a CO2 Sequestration and Enhanced Coalbed Methane Recovery Test in Central Appalachia." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/73552.

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A storage and enhanced coalbed methane (CO2-ECBM) test will store up to 20,000 tons of carbon dioxide in a stacked coal reservoir in southwest Virginia. The test involves two phases of CO2 injection operations. Phase I was conducted from July 2, 2015 to April 15, 2016, and injected a total of 10, 601 tons of CO2. After a reservoir soaking period of seven months, Phase II is scheduled to begin Fall 2016. The design of the monitoring program for the test considered several site-specific factors, including a unique reservoir geometry, challenging surface terrain, simultaneous CBM production activ

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Corbett, Gary Robert. "The development of a coal mine portable microseismic monitoring system for the study of rock gas outbursts in the Sydney coal field, Nova Scotia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29585.pdf.

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Corbett, Gary Robert. "The development of a coal mine portable microseismic monitoring system for the study of rock gas outbursts in the Sydney coal field, Nova Scotia /." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27212.

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Abstract:

Rock gas outbursts are a coal mine dynamic phenomena similar to rock bursts, however, they involve the active participation of large quantities of asphyxious and explosive gases under pressure. These events have occurred in the Sydney coal field, Cape Breton, Nova Scotia, where they have resulted in injury and economic hardship.<br>Because these phenomena are life threatening and not well understood and because geophysical methods have been identified as a means of studying these phenomena, an intrinsically safe microseismic monitoring system and method suitable for underground coal mines has

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