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Shoja, S.M. Aydin (author)
Reflection seismology aims to estimate the Earth's subsurface elastic parameters for further investigation by geologists and engineers. This involves generating elastic waves using seismic sources and recording the Earth's response with receivers. The subsurface model is typically considered a combination of a background model and a short...
doctoral thesis 2023
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van IJsseldijk, J.E. (author)
Monitoring time-lapse changes inside the subsurface is of great significance to many geotechnical applications, such as storage of gasses in underground geological formations. Minute differences in the seismic wavefield between an initial baseline and a subsequent monitor survey have to be detected in order to observe fluid flow inside...
doctoral thesis 2023
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Brackenhoff, J.A. (author)
Monitoring seismic wavefields caused by induced seismicity in the subsurface is a difficult process. Ideally, it requires physical receivers in the subsurface, which is unpractical. Frequently, only measurements at the surface of the Earth are available, which give a limited amount of information about the subsurface. One way to improve the...
doctoral thesis 2021
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Vrolijk, J. (author)
In exploration geophysics, seismic measurements are used to obtain information about the subsurface. A large proportion of these measurements take place in oceans, seas and lakes, where the sources and the receivers are generally located somewhere between the water bottom and the water surface during data acquisition. The sources emit an...
doctoral thesis 2020
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Staring, M. (author)
Curiosity regarding what we cannot see has always driven research. Science has helped us to uncover many of those hidden secrets. In particular, geophysics has helped us to image the inside of the Earth. By sending a seismic signal into the Earth and recording the signal that comes back, geophysicists can characterize the layers of the...
doctoral thesis 2020
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Holicki, M.E. (author)
In acoustic exploration and monitoring imaging plays a critical role in uncovering structure and minute changes therein. It is, however, often hampered by unfulfilled assumptions. One such assumption is that estimated incident and reflected wavefields at a reflector travel in opposite directions with respect to the reflector surface-normal...
doctoral thesis 2020
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Nakayama, S. (author)
The quality and business aspects are both of particular importance in determining the type of seismic acquisition. Usually, a strong emphasis on cost reduction is inevitable. On the other hand, there is an increasing demand for the acquisition of high-quality seismic data that can contribute to the various stages in the field development profile...
doctoral thesis 2020
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Zotz-Wilson, R.D. (author)
We all monitor the world around us through waves. After about sixteen weeks in the womb, the ears and eyes of an infant child begin to deliver the first signals of light and sound waves to the brain. In fact, one could argue that consciousness itself is the feeling one receives when processing large amounts of wavefield data. Despite the...
doctoral thesis 2020
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Reinicke Urruticoechea, C. (author)
The Marchenko method offers a new perspective on eliminating internal multiples. Instead of predicting internal multiples based on events, the Marchenko method formulates an inverse problem that is solved for an inverse transmission response. This approach is particularly advantageous when internal multiples generate complicated interference...
doctoral thesis 2020
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Douma, L.A.N.R. (author)
Mudstones play an important role in hydrocarbon exploration and production, carbon capture and storage, and nuclear waste disposal. The high concentration of clay minerals contribute to the high intrinsic anisotropy (e.g., velocity, strength, permeability, and resistivity changes with direction) of mudstones. This high anisotropy complicates,...
doctoral thesis 2020
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Caporal, M. (author)
Reflection seismology is nowadays the preferred technique in the oil and gas industry to estimate the properties of the Earth's subsurface. The method typically includes a series of procedures that fit in three broad categories: • seismic data acquisition; • data processing and imaging; • interpretation and reservoir characterization.<br/><br/>...
doctoral thesis 2020
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Hartstra, I.E. (author)
Seismic interferometry (SI) for body waves offers the opportunity to utilize highfrequency scattering coda from local earthquakes to obtain a detailed reflectivity image of the lithosphere. In this thesis it is demonstrated that classical SI methods are seriously affected by circumstances that are typical of field data and that multiple...
doctoral thesis 2018
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Kiricheck, O.J. (author)
Monitoring the properties of a CO2 storage reservoir is important for two main reasons: firstly, to verify that the injected CO2 is safely contained in the reservoir rock as planned, and secondly, to provide data which can be used to update the existing reservoir models and support eventual mitigation measures in case of deviation from the CO2...
doctoral thesis 2018
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Boullenger, B. (author)
The theory of seismic interferometry predicts that the cross-correlation (and possibly summation) between seismic recordings at two separate receivers allows the retrieval of an estimate of the inter-receiver response, or Green's function, from a virtual source at one of the receiver positions. Ideally, the recordings must consist of the...
doctoral thesis 2017
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Almagro Vidal, C. (author)
Passive seismics is the set of applications that endeavours the exploration of the<br/>Earth’s mechanical properties using naturally occurring sources in the subsurface.<br/>Conventional imaging of the subsurface is achieved with the aid of reflection<br/>surveys of body waves from the surface. Passive seismics offers the possibility<br/>to...
doctoral thesis 2017
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Nishitsuji, Y. (author)
This thesis investigates the potential of passive seismic methods that make use of body waves, and especially the passive reflection method, as cost-effective applications for multiscale subsurface imaging and characterization. For this purpose, we develop several seismic techniques for different scales: basin, crustal, and lithospheric. For the...
doctoral thesis 2017
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Noorlandt, R.P. (author)
The seismic method is an important indirect method to investigate the subsurface of the earth. By analyzing how the earth affects the propagation of mechanical waves, the structure of the earth and its seismic properties can be inferred. The seismic vibrator is the most commonly used land source in active-source exploration and monitoring to...
doctoral thesis 2016
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Fricke, J.T. (author)
In this thesis, the possibilities of infrasonic interferometry for probing the troposphere and stratosphere with microbaroms are explored. Infrasonic interferometry determines the delay time between two sensors by cross correlating their infrasound recordings. The obtained delay time can be used to estimate the Green’s function, which is the...
doctoral thesis 2016
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Grobbe, N. (author)
In this thesis, I study coupled poroelastic waves and electromagnetic fields in layered media. The focus is two-fold:<br/>1. Increase the theoretical and physical understanding of the seismo-electromagnetic phenomenon by analytically-based numerical modeling.<br/>2. Investigate the potential of seismo-electromagnetic interferometry.<br/><br/...
doctoral thesis 2016
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Kudarova, A. (author)
doctoral thesis 2016
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