Browsing by Subject "surface geochemical surveys"

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Analiza i interpretacja wyników powierzchniowych badań geochemicznych w rejonie złoża gazu ziemnego Brzezowiec (Zapadlisko Przedkarpackie)
(Data obrony: 2018-10-01) Czech, Dariusz
Wydział Geologii, Geofizyki i Ochrony Środowiska
W niniejszej pracy zostały przedstawione wyniki powierzchniowych badań geochemicznych przeprowadzonych na obszarze Zapadliska Przedkarpackiego w pobliżu złoża gazu ziemnego Brzezowiec. Badania polegały na pobraniu 157 próbek gazu glebowego z głębokości ok. 1.2 m wzdłuż wyznaczonych 8 profili geochemicznych (A-H) z krokiem próbkowania wynoszącym 100 m. Następnie zostały one poddane analizie chromatograficznej polegającej na oznaczeniu stężeń lekkich alkanów i alkenów. Analiza wykazała obecność anomalnych stężeń metanu i jego wyższych homologów, a także lekkich alkenów. Maksymalne wartości stężeń metanu, sumy alkanów C2-C5 i sumy alkenów C2-C4 wynosiły odpowiednio: 1433 ppm, 0,436 ppm i 0,174 ppm. Wyniki powierzchniowych badań geochemicznych zintegrowane z modelem geologiczno złożowym wykazały słaby związek zasięgu eksploatowanego złoża gazu Brzezowiec z rozkładem anomalnych stężeń węglowodorów. Jakkolwiek ich rozkład sugeruje obecność innych nie rozpoznanych wiertniczo akumulacji.
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Analiza wyników powierzchniowych badań geochemicznych wykonanych w rejonie Abramów-Nasutów-Glinnik w świetle najnowszych wyników danych sejsmicznych i wiertniczych
(Data obrony: 2013-09-02) Izydor, Gabriela
Wydział Geologii, Geofizyki i Ochrony Środowiska
The thesis presents the results of surface geochemical surveys which the analysis was based on the latest seismic and drilling data. Surface geochemical survey carried out in 1997- 2000 in the Area of Abramow-Nasutow-Glinnik. Fild work consisted of collecting 355 soil gas samples along five section with a total length 71 km. Results from the chromatographic determinations of soil gas samples were subjected to statistical analysis. For each profile were made graphs of methane, ethane, butane, hydrogen, carbon dioxide and unfiltered-normalized values for methane, total alkanes C2-C4 and total alkenes C2-C4. In order to complete a thorough analysis of the geochemical image on the background geological area, the graphs were plotted on seismic profiles attribution to them. Moreover anomalous concentration of total alkanes C2-C4 were presented on a background map of the studied area. The results of the surveys allowed to determine the possibility of subsurface hydrocarbons accumulations.
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Analiza wyników powierzchniowych badań geochemicznych wykonanych w rejonie Białogard – Jamno – Dobrzyca (Pomorze Zachodnie) w świetle rozpoznania wiertniczego
(Data obrony: 2012-06-19) Wawruk, Wojciech
Wydział Geologii, Geofizyki i Ochrony Środowiska
The thesis presents the results of surface geochemical surveys which were conducted in 1995 in the vicinity of Białogard, Jamno, Dobrzyca (West Pomerania). The purpose of the surveys was to evaluate the possibility of the occurrence of subsurface hydrocarbon accumulations. The surveys were conducted within 10 profiles with total length of approximately 147 km. Altogether, 740 soil gas samples were collected, in which concentrations of gaseous hydrocarbons were determined. The received concentration sets were statistically analysed. The anomalous alkanes concentrations were introduced in the form of graphs and visualised on the map of the studied area. The occurrence of the surface geochemical anomalies and the results of the statistical analysis indicate the existence of still undocumented subsurface hydrocarbon accumulations in this area.
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Porównanie stężeń węglowodorów pomierzonych w powietrzu glebowym i na powierzchni terenu w rejonie KPMG Mogilno
(Data obrony: 2011-12-13) Kapciak, Magdalena
Wydział Geologii, Geofizyki i Ochrony Środowiska
The paper presents results of surface geochemical surveys carried out in the area of Underground Gas Storage Mogilno in 2009. The survey has been provided along two measurement lines. The investigations were carried out with application of the method of static chambers and geochemical probe. The geochemical surveys consisted in taking 200 soil-gas samples, in which concentrations of gaseous hydrocarbons were determined. The comparative analysis was conducted in the support about the made statistical profile of measured sets. All comparisons were introduced in the figure of graphs and correlations. As a result of geochemical analysis were found the anomalous hydrocarbon concentrations. In order to determine the leak, it is necessary to perform additional geochemical measurements.
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Porównanie wyników badań geochemicznych wykonanych metodą komór i sond w Staruni
(Data obrony: 2012-11-21) Serafin, Alicja
Wydział Geologii, Geofizyki i Ochrony Środowiska
The paper presents results of surface geochemical analysis carried out by the Department of Fossil Fuels in the abandoned ozokerite mine area near Starunia (Ukraine) in 2004. Author has made statistic analysis of survey’s results which were realized in two variants of free gas method: by using a probe’s and with application of static chamber’s. This analysis depicted gas concentrations measured in both variants and eventually enabled to compare analysis results of both methods.
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Zmiany stężeń węglowodorów pomierzonych w powietrzu glebowym w rejonie KPMG Mogilno w latach 2008-2009
(Data obrony: 2011-12-13) Słomka, Magdalena
Wydział Geologii, Geofizyki i Ochrony Środowiska
The paper presents results of surface geochemical surveys conducted in the area of Underground Gas Storage Mogilno in 2008-2009. Collection of test samples was made using a “free” gas method consisting of the current dynamic gases migration. The purpose of this study is to compare changes in concentrations of gaseous hydrocarbons in terms of tightness of the magazine. The comparative analysis was based on the statistical characteristics of the of measured concentrations, changes in average and median quantities, changes in filtered quantities and statistical distributions. All the calculations are presented in graphs and correlations. The results of studies have highlighted the increased concentration of gaseous hydrocarbons in the near-surface zone in 2009. This confirmed the need for further surface geochemical surveys in the area of Mogilno.