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Queroga Caldas, Luiza (author)Salt caverns formed by solution mining may cause soil subsidence, because the surrounding adapts to fill the void (cavity) created in the strata. The cavern volume is hence not only a function of salt extraction (estimated from mass balance) but also a function of salt creep. The cavern size can be measured by sonar, but a less costly way would...master thesis 2018
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Toutouh, Azeddine (author)In 1949, Toms (Toms B.A., (1949, 1977)) observed that small amounts of a drag reducing agent (DRA) could cause a considerable drag reduction in turbulent pipe flow. In application of polymer enhanced oil recovery, degradation of polymers in the supply lead could cause clogging. It was, however observed that surfactants at sufficiently high...master thesis 2018
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Burgers, Floortje (author)Natural occurring arsenic contamination of shallow aquifer groundwater is a problem affecting millions of people worldwide. Long term exposure to high concentrations results in severe medical conditions. On-going research into the origin and spread of the problem, risk mitigation and problem solving is of great importance. Sediment eroded and...bachelor thesis 2017
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Broens, M.M.J. (author)The formation of microemulsions of an EOR surfactant with n-decane was studied in a microfluidic setup using fluorescence microscopy. Generally microemulsions are studied under static conditions by means of phase behavior tests. However, oil mobilization fromreservoirs is a dynamic process and therefore it is important to understand how...master thesis 2015
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Hassan, A.M. (author)Characterization of fluid properties is significant in the petroleum engineering practice, especially in solvent-based enhanced oil recovery (SEOR) where the use of injected chemicals should ideally be reduced to the bare minimum in order to minimize the costs and environmental impact of SEOR. However, current techniques for measurement inside...master thesis 2015
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Boekhout, S.G. (author)Polymer flooding can significantly improve the sweep efficiency in heterogeneous reservoirs compared to a water flood. This is caused by the improved mobility of the polymer flood, which has an effect on the crossflow mechanisms caused by viscous, capillary and gravitational forces in the reservoir. However it is not yet fully understood how the...master thesis 2015
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Blokker, N.C.M. (author)Alginate-like exopolysaccharides (ALE) can be extracted from granular sludge, which is produced during aerobic granular sludge waste water treatment as a waste product. Processing the waste is a costly operation. It is believed that ALE consist mostly of alginates. The chemical and mechanical properties of alginates are potential for the...master thesis 2014
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Den Ouden, L. (author)Low salinity water flooding (LSF) has been proved to be a promising enhanced oil recovery method for sandstone reservoirs. The efficiency of LSF in carbonate reservoirs has not been proven completely yet, because there are still uncertainties about the LSF recovery mechanism in carbonate. From experimental studies, it was shown that wettability...master thesis 2014
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Loerakker, M. (author)For a long time gas hydrates were considered to be a hindrance for the natural gas and oil industry. However, since natural gas hydrates deposits were discovered in 1967 the conception of natural gas hydrates as an important energy resource is well accepted. Latest estimations indicate that the amount of natural gas stored in hydrate form is...master thesis 2013
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Den Boer, C.A. (author)We investigate non-isothermal compositional flow in methane-rich geothermal aquifers by coupling a thermodynamic model and a dynamic flow model. For the thermodynamic model, we develop a MATLAB program, which calculates the thermodynamic equilibrium of the H2OCH4-NaCl mixtures at high pressure conditions and reservoir temperatures. In the same...master thesis 2012
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Kartika Surjosantoso, M. (author)The objective of this thesis is to investigate experimentally the impact of gas phase reactions during a simple ISC process especially the role of heat and oxygen presence in the system. Heat plays an important role in both air and nitrogen injection experiments because the injected gas needs to be heated first to the set temperature before...master thesis 2012
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Zholdybayeva, A. (author)Oil recovery in fractured reservoirs by water flooding critically depends on the wetting properties of the matrix blocks between the fractures. The recovery from oil-wet reservoirs is almost negligible. In incompletely oil-wet systems, the presence of initial water may change the wettability characteristics so that very slow imbibition and some...master thesis 2012
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Deen, M.M. (author)The objective of thesis is to see at which rate and depth Arsenic (As) contaminated water flows into deep wells in the subsurface of a small region in Bihar, India. The method of investigation is interpretation of geological data and implementing this in a flow model built in Comsol Multiphysics 4.2a. Interpretation of the data is done by grain...bachelor thesis 2012
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Slangen, G.L.J. (author)When an oil reservoir is underlain by an aquifer, oil production draws the water from the aquifer upward, forming a water cone, which under adverse conditions enters in the production well leading to high water cuts. An alternative option is to produce above the critical rate from the aquifer, i.e., at such a rate that the oil cone is drawn into...bachelor thesis 2012
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Frequin, D.M. (author)The static leak-off of oil-based drilling mud into liquid-saturated cores was studied experimentally. A simple model for the leak-off was first developed extending an earlier model for the static filtration into unsaturated core. CT scan aided static filtration experiments were performed in brine and oil and brine saturated cores, simulating...master thesis 2012
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Schaepman, G. (author)In Bihar, India, arsenic rich aquifers are used as a drinking water source by millions of people, even though the arsenic concentration in some places is so high it causes serious health issues. The arsenic concentrations in the aquifers show a large spatial variability, one that is presently unpredictable. The most important factors which play...master thesis 2012
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Kermen, E. (author)Water-flooding in heavy oils is generally not an efficient way of production due to high viscosity of heavy oil compared to water. Therefore, thermal recovery methods are commonly used in heavy oil production. Most thermal methods involve fluid injection to transfer heat further into the reservoir. Hot water-flooding is among these methods. In...master thesis 2011
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Boeser, D.M. (author)Clean drinking water is essential for life. In Bangladesh and the northern part of India however, around the 30 and 40 million people are estimated to be exposed to Arsenic in drinking water at concentrations above the 0.05 mg/L. Studies show that the aquifers of Holocene age near the Ganga River are polluted. These aquifers are between the 10...bachelor thesis 2011
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Kahrobaei, S. (author)Solvent injection has been considered as an efficient method for enhancing oil recovery from fractured reservoirs. If the mass transfer would be solely based on diffusion, oil recovery would be unacceptably slow. The success of this method therefore depends on the degree of enhancement of the mass exchange rate between the solvent residing in...master thesis 2011
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Lourma, S. (author)Arsenic contamination of the groundwater and as a consequence, of the drinking water, has developed to a major problem for many regions globally during the last decades (Chile, China, United States, Argentina, and Mexico). The issue of Arsenic contamination has already been studied extensively in West Bengal, India and Bangladesh, which are some...master thesis 2011
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