Browsing by Subject "concentration analysis"

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Analiza zmian stężeń metanu i jego cięższych homologów pomierzonych w powietrzu glebowym nad złożem gazu "Wierzchowice", w kontekście oceny charakteru przenikania węglowodorów
(Data obrony: 2013-04-18) Gronowski, Bartłomiej
Wydział Geologii, Geofizyki i Ochrony Środowiska
The thesis presents analysis, of results of Department of Fossil Fuels survey (Górecki et. al., 1995), from 410 soil gas samples measured around 41 boreholes. For the concentrations of methane, ethane. propane, izo- butane, n- butane, ethylene, propylene, 1-butene and for sum of alkane’s (C2-C4) and alkene’s (C2-C4) concentrations have been calculated basically, statistical parameters: maximum, minimum, mean and median values, standard deviation and quantity of samples where concentration was more than 0. Moreover was set boreholes, where had noticed significant number of unnatural relation between hydrocarbons, drawn histograms and probability diagrams in purpose of characterize the statistical distribution for methane, sum of its heavier homologies and sum of alkenes. In purpose of appoint the character of hydrocarbons migration was calculated ethane/ethylene ratio (C2/C2=), however than was estimated number of biochemical methane based on methane/ethane ratio (C1/C2). For C1/C2 i C2/C2= was constructed histograms and probability diagrams, and was appointed characteristic subpopulations. Results of coefficients analysis was presented in tables and circle plots. For each borehole was appointed mean and maximum values of methane, sum of its heavier homologies and alkenes.