Searched for: department%3A%22Geoscience%255C+%2526%255C+Engineering%22
(81 - 100 of 383)
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Asrul, F. (author)Naturally fractured reservoirs (NFRs) are important because they hold a significant quantity of oil reserves. Researchers build reservoir simulators to help them studying and predicting NFR performance. Some of them use the dual-porosity concept in their reservoir simulator, where the model consists of two continua: matrix and fracture. Fluid...master thesis 2016
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Thomas, A.T. (author)Fractures occur at varying scales and orientations in the subsurface. The role of fractures as conduits for fluid flow in a reservoir must be well constrained for planning and development of a geothermal system. This study examines the uncertainty associated with fractures in a rock matrix using a discrete fracture network modelling approach;...master thesis 2016
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Saavedra Castañeda, D.A. (author)New reserves are necessary to compensate the oil depletion of the giant fields in the Gulf of Mexico. This work covers a reservoir characterization workflow of Pliocene shallow marine deltaic sandstone deposits located in the south eastern Gulf Mexico. The traditional reservoir characterization workflow is considered a multidisciplinary...master thesis 2016
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Ricardo, M. (author)Deltaic reservoirs are important reservoirs for the oil and gas production. Most of the hydrocarbons produced from deltaic reservoirs are obtained from the matrix or primary porosity. Besides primary porosity, secondary porosity, formed after deposition takes place, can have a positive contribution on hydrocarbon production. One of the processes...master thesis 2016
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Ooms, M.C. (author)The Collisional Orogeny in the Scandinavian Caledonides (COSC) drilling project, supported by the International Continental Drilling Program (ICDP) and Swedish Research Council, was designed to study mountain building processes and the geologic structure and composition of the Caledonian orogeny in central Sweden. The 2.5 km deep scientific COSC...master thesis 2016
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Bamarouf, T. (author)• Statics correction can be computed by inverting the dispersion curves of surface waves (groundroll). • Inversion results generally require intensive processing and are affected by solution nonuniqueness. Here, we directly estimate the statics correction from the dispersion curves of surface waves, without the need for inverting the data. This...master thesis 2016
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König, M. (author)Ultrasonic echo measurements are widely used in the field of non-destructive testing (NDT). In civil engineering, concrete structures are evaluated by this technique. Currently, Synthetic Aperture Focusing Technique (SAFT), a group of migration algorithms, is state of the art in ultrasonic data processing. Reverse Time Migration (RTM), recently...master thesis 2016
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Sharifian, R. (author)Predicting accurate temperature profiles in flowing wells can greatly improve the design of production facilities in petroleum and geothermal engineering. Temperature profiles help to calculate accurate two-phase-flow pressure drop predictions, which, in turn, can improve an artificial-lift system design. Existing temperature correlations are...master thesis 2016
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Prabhakaran, R. (author)In hydraulic fracture modelling, fracture geometry along with the net pressure distribution in the fracture are the parameters the values of which are sought to be predicted away from the wellbore. In current industry standard fracture modelling packages, fracture dimensions are obtained from equilibrium height growth simulation models that are...master thesis 2016
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Aukenthaler, M. (author)The replication of the behaviour of frozen soils has been studied for decades. Many attempts have been undertaken to either develop new constitutive models or to improve already existing models to simulate the behaviour of frozen materials. To handle the challenges of ground freezing, cold regions engineering and periglacial processes, it is...master thesis 2016
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Houkes, C.B. (author)Organic soft soils pose technical challenges in construction industry due to their extraordinary compressibility and deformability, which is an issue of particular relevance in the densely populated Netherlands, of which more than half of the land surface is covered by such soft soils. Uncertainty and variability in settlement predictions for...master thesis 2016
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Kluge, C. (author)The Moroccan passive margin has been the objective of a variety of studies to investigate the petroleum potential and to locate play systems in the offshore and partly onshore Agadir-Essaouira basin. These basins are largely dependent on the structural development of Atlas mountains, being characterised by different phases of tectonic rifting,...master thesis 2016
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Roijmans, R.F.H. (author)Optimization of drilling fluid properties is an essential part of cost effective drilling operations and process safety. Currently fluid properties are measured and optimized manually by human engineers with different skills and experience which might lead to nonoptimum drilling fluid properties that deteriorate its functionalities. Automated...master thesis 2016
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Van Oosterhout, D. (author)In the last decades, measurement while drilling, or MWD, technology has set foot in the drill and blast tunnelling industry. Penetration rate, thrust, torque pressure, percussive pressure, rotation speed, water flow and water pressure are registered on a centimetre scale and processed to parameters more dependent on geology. These parameters...master thesis 2016
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Steiner, A. (author)Thermo-active structures, such as energy piles, are used to store and extract heat energy from soil. In areas with seasonal freezing and thawing, such infrastructure is subjected to changes in the soil structure and, consequently, the soil strength. This research investigated the influence of repeated freeze-thaw (FT) cycles and different...master thesis 2016
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Louwerse, D. (author)The aim of this thesis is to describe the rare earth element (REE) occurrences, reserves and resources in Brazil and India and to investigate future potentiality of these deposits and any other potential REE resources in South America. This report is completely based on literature studies, no experiments or fieldwork were carried out. Firstly,...bachelor thesis 2016
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Klifman, E.H.A. (author)Diatomite is a white and soft sedimentary rock made of the skeletal remains of diatoms. Diatoms are unicellular organisms that belong to the algae and have a skeleton made of opal (hydrated silica). The ore in the deposit in Elche de la Sierra (Spain) is primarily made of these diatoms but there is also calcium carbonate present in the ore. The...master thesis 2016
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Duijnstee, W.W.F. (author)The potential emergence of mining seafloor massive sulphide deposits make it necessary to assess the economic feasibility of these deposits. In this thesis it is suggested that a series of calculations can be used to increase the level of confidence from a geological occurrence to an ore reserve. An analysis has been done on uncertainties that...master thesis 2016
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Velalis, K. (author)In near future the Nuevo Aeropuerto Internacional de la Ciudad de México (NAICM) will be built in Mexico City. The airport’s construction is necessary as the Benitto Juarez Internatinal airport has reached its full capacity. The Mexico City area is notorious about its subsoil complexity and earthquake presence. Tunnel Engineer Company (TEC) has...master thesis 2016
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Dantuma, G.A. (author)The topic of this thesis covers hydraulic conductivity determination with direct push methods. The most known direct push method is the Cone Penetration Test. Based on this technique a method was developed to determine the hydraulic conductivity. This method is based on water injection from the side of the probe into the soil. Pressure...master thesis 2016
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