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Access status: Open Access ,
Application of AHP method to assess the possibilities of using of geological structures located in the aquifers as underground storage sites
(2017) Lewandowska-Śmierzchalska, Joanna; Uliasz-Misiak, Barbara
Decision-making problem with assessing of the suitability of geological structures located in aquifers in terms of their use for carbon storage, natural gas storage or waste injection is mainly connected with the necessity of taking into consideration a large number of criteria and analyze a lot of parameters. It also connected with making many independent decisions concerning geological, environmental, social, political, technical or legal issues. This article shows the possibility of using the AHP method, ie. multi-criteria hierarchical methods to analysis of decision problems in assessment the potential of aquifers. AHP method allows to take reasonable decision. The article was divided into three parts. The first one includes a characteristics of geological structures located in aquifers, special attention was paid to the criteria describing these structures. In the second part, the basis for decision-making system based on the method of AHP, which was used to carry out the hierarchical scoping assessment of potential structures. Validation of decision-making system was realized on selected geological structures located on the Polish Lowlands. An assessment of the possibilities to use the two anticline in the Mesozoic aquifers was made. As a result, received the criteria ranking, rankings of decision variants to all criteria and global ranking of variants. Based on the results obtained can be determine which decision represents a priority way of use structure.
Access status: Open Access ,
Analysis of reservoir properties and parameters of oil fields suitable for the application of CO₂-EOR method
(2015) Uliasz-Misiak, Barbara; Kosowski, Piotr; Lewandowska-Śmierzchalska, Joanna
The criteria worked out on the basis of the literature study were used for indicating oil fields, where carbon dioxide can be injected for the purpose of storing or to enhance the production of oil. The preliminary selection of oil fields, where the miscible $CO_{2}$-EOR method can be applied was based on the following criteria: depth of deposition, density of oil, reservoir temperature and oil saturation. From among 68 analyzed oil fields, 35 were used for the analyses: 3 fields in the Carpathians, 6 in the Carpathian Foredeep and the remaining 26 fields in the Polish Lowland. The statistical analysis methods were used for analyzing reservoir parameters of fields preselected for the $CO_{2}$-EOR method, i.e. depth of deposition of the roof of the horizon, average thickness, initial reservoir pressure and reservoir temperature. The reservoir properties of these fields were also analyzed, i.e. average permeability, average porosity and average saturation with oil.
Access status: Open Access ,
Ecological risk associated with the onshore hydrocarbon deposits exploration
(2017) Uliasz-Misiak, Barbara; Lewandowska-Śmierzchalska, Joanna; Matuła, Rafał
Oil and natural gas exploration is performed using geophysical methods and drilling works. In areas initially identified as prospective for the occurrence of accumulation oil or natural gas based on the analysis of geological data carried out geophysical surveys. The aim of this works is to identify geological structures that could constitute hydrocarbons traps. In the case of finding the appropriate structures, the next stage of exploration work is drilling well for further recognition of the structure. These works allow to explore not 12 only the geological profile but also the physico-chemical properties of drilled rocks and reservoir fluids. Geophysical (mainly seismic) surveys and drilling works can affect the individual elements of the environment: the atmosphere, underground and surface water, ground surface and land and rock environment in different degrees. In order to estimate the risks, threats to all elements of the environment related to the prospection of hydrocarbon deposits have been analyzed (seismic and drilling works). Environmental risk is estimated based on a modified methodology contained in the norm PN 18002. For risks associated with the exploration referred to the consequences of adverse events in relation to the individual elements of the environment and the frequency thereof (by determining the probability of their occurrence). The risk was estimated by multiplying the weight of the likelihood of adverse events weights and consequences. Risk evaluation, indicating danger tolerated, acceptable and unacceptable was also evaluated.
Access status: Open Access ,
The fresh waters of the Krakow region as the lower source for heat pumps
(Wydawnictwa AGH, 2018) Uliasz-Misiak, Barbara; Winid, Bogumiła; Chodań, Ewa
Krakow is a city facing a big problem with air pollution, the use of energy accumulated in groundwater may contribute to reducing emissions of gases and dust to the atmosphere. The article analyzes the possibilities of using groundwater made available with intakes located in Krakow. Estimated water temperatures were ranging from 7.9 to 9.7°C. The thermal power that can be obtained in groundwater varies for individual intakes and allows for obtaining thermal outputs from 0.395 to 1108.035 kW, according to calculations. The analysis of groundwater chemistry in the Krakow region and their comparison with the recommendations of heat pump manufacturers indicates that the use of water as a lower heat source may in some cases cause technical problems.

Uliasz-Misiak, Barbara

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