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Wyświetlanie 1-15 z 101
Tytuł:
Attribute analysis as a tool for determining the areas of the late diagenetic Main Dolomite deposits and assessing the stability of the seismic signal parameters
Autorzy:
Smalera, Norbert
Powiązania:
https://bibliotekanauki.pl/articles/2124699.pdf
Data publikacji:
2022
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
seismic attributes
Zechstein
Main Dolomite
fault shadow
dominant frequency
phase shift map
attenuation
Opis:
The results of the lithofacial analysis of data from the Moracz 3D seismic survey were among the main premises leading to the positioning of the new petroleum exploration well in that area. Unfortunately, the reservoir properties of the drilled part of the Main Dolomite carbonates differed significantly from those anticipated by the analysis of the amplitudes of the seismic signal recorded. Such surprisingly negative results impelled the reinterpretation of 3D seismic data. Hence, a number of analyses of the amplitudes, the frequencies, and the variability of phase shift were carried out in order to determine the influence of these parameters on the lithofacial interpretation of seismic data. The results revealed a fundamental error of amplitude with the extraction maps. It appeared that the distribution of amplitudes is not essentially controlled by the reservoir properties of the Main Dolomite carbonates but by the fault shadow effect coming from Mesozoic graben in the overburden. In addition, a large diversity of frequency spectra was found, which, combined with the small thickness of the exploration level, could have contributed to incorrect identification of seismic reflections. There was also a change in seismic signatures from the same reflection in different parts of the survey, raising doubts about the distribution of the phase rotation. In order to recognize phase rotation diversity, a new seismic data analysis was based upon the selected Triassic sediments of high impedance. The obtained maps demonstrated significant variability within the data volume due to attenuation. The reinterpreted data from the Moracz 3D seismic survey proved the uneven and unstable distribution of amplitudes, frequencies, and phase which resulted in erroneous conclusions of petroleum exploration. After modeling with the use of different frequency ranges, an analysis of the amplitude extraction of the horizons related to the Main Dolomite was performed. Then the amplitude ratio attribute was selected which eliminated the influence of the regional amplitude and frequency distribution and showed the distribution. of dolomite properties more reliably than the amplitude extraction maps.
Źródło:
Geology, Geophysics and Environment; 2022, 48, 2; 111--132
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane pierwiastki śladowe w górnopermskich (cechsztyn) utworach potasonośnych w Polsce – czy warto je stąd pozyskiwać?
Selected trace elements in the Upper Permian (Zechstein) potash-bearing deposits in Poland – is their exploitation from salts economically plausible?
Autorzy:
Czapowski, Grzegorz
Tomassi-Morawiec, Hanna
Wachowiak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2192016.pdf
Data publikacji:
2022
Wydawca:
Polskie Stowarzyszenie Górnictwa Solnego
Tematy:
pierwiastek śladowy
utwór potasonośny
cechsztyn
trace element
potash-bearing deposit
zechstein
Opis:
Przedstawiono aktualną charakterystykę zawartości wybranych pierwiastków śladowych (Ag, As, Ba, Be, Br, Cd, Ce, Co, Cr, Cs, Cu, Ga, J, La, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Ti, Tl, U, V i Zn) w utworach potasonośnych cyklotemów PZ1, PZ2 i PZ3 cechsztynu (tab. 1) w Polsce, opartą o analizę wyników badań geochemicznych (archiwalnych i publikowanych) 307 próbek skał (tab. 2). Większość danych dotyczy 4 wysadów solnych z centralnej Polski (ryc. 1): Damasławek (14 próbek), Góra (5 próbek), Kłodawa (266 próbek) i Mogilno (13 próbek). Najwięcej danych uzyskano dla utworów potasonośnych cyklotemu PZ3 (207 próbek), dwukrotnie mniej (91 próbek) dla serii potasonośnej cyklotemu PZ2. Skąpe dane (9 próbek) dotyczą siarczanowych soli K-Mg (polihality) cyklotemu PZ1 w północnej Polsce (tab. 2). Średni udział większości wymienionych pierwiastków w tych utworach jest niski, nie przekracza zwykle 1-4 mg/ kg (tab. 3-5). Opisane serie potasonośne nie stanowią zatem ekonomicznie opłacalnego źródła pozyskiwania pożądanych rzadkich pierwiastków śladowych takich jak np. lit, bor, stron czy cez.
Content analysis was conducted on selected trace elements (Ag, As, Ba, Be, Br, Cd, Ce, Co, Cr, Cs, Cu, Ga, J, La, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Ti, Tl, U, V, and Zn) of the Upper Permian (Zechstein) potash-bearing deposits of cyclothems PZ1 to PZ3 in Poland, based on both archival and published geochemical data concerning 307 rock samples (Table 1). Most of the samples (296) were collected from four salt domes, located in central Poland (Fig. 1): Damasławek (14 samples), Góra (5 samples), Kłodawa (266 samples), and Mogilno (13 samples). Dominant data (207 samples) represented the potash-bearing series of cyclothem PZ3 (Transitional Beds, Na2+K2, and Older Potash units; Table 2), fewer data (91 samples) characterised the potash-bearing deposits of cyclothem PZ2 (Transitional Beds, Na3+K3, and Younger Potash unit; Table 2). Only a few samples (9) were taken from sulphate potassium-magnesium salts (polyhalites) of PZ1 cyclothem from northern Poland (Fig. 1). An average content of most often detected trace elements was low in the studied deposits, usually not higher than 1–4 mg/kg (Tables 3–5); therefore, those Zechstein potash-bearing rocks are not economic sources of many marketable trace elements, e.g. lithium, boron, strontium or caesium
Źródło:
Przegląd Solny; 2022, 16; 43--66
2300-9349
Pojawia się w:
Przegląd Solny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane pierwiastki śladowe w górnopermskich (cechsztyn) utworach solnych i potasonośnych w Polsce : ocena złożowa
Selected trace elements in the Upper Permian (Zechstein) salt and potash-bearing deposits in Poland : valuation of potential reserves
Autorzy:
Czapowski, Grzegorz
Tomassi-Morawiec, Hanna
Wachowiak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2087038.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pierwiastki śladowe
złoża soli
ocena złożowa
cechsztyn
Polska
trace elements
salt deposits
reserves valuation
Zechstein
Polska
Źródło:
Przegląd Geologiczny; 2022, 70, 5; 384--409
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anizotropia akustyczna w utworach wapienia cechsztyńskiego (zachodnia Polska)
Acoustic anisotropy studies in Zechstein Limestone deposits (western Poland)
Autorzy:
Poszytek, Anna
Łukaszewski, Paweł
Włodarczyk, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2076189.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wapień cechsztyński
anizotropia akustyczna
dolomit
pułapki gazowe
Zechstein Limestone
acoustic anisotropy
dolomite
gas traps
Opis:
In September2009, gas and rock were ejected from the roof of the excavation at the Rudna copper mine of KGHM Polska Miedź S.A. The ejection occurred as a result of an unsealing of a small gas trap locateda few metres above the roof of the excavation within the dolomites of the first Zechstein cyclothem (PZ1). In order to identify the nature of the reservoir rock for natural gas, microscopic observations and X-ray microtomography were performed and compared with the results of the acoustic anisotropy tests. The obtained results indicate that, based on well-recognized petrological rocks, the results of acoustic anisotropy can be successfully applied as diagnostic for the recognition of rocks of various structures, textures and porosities.
Źródło:
Przegląd Geologiczny; 2021, 69, 6; 386--388
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przestrzenne rozmieszczenie srebra w strefie kontaktowej utworów redukcyjnych z utworami utlenionymi (Rote Fäule) w rejonie złoża Cu-Ag Radwanice-Gaworzyce
Spatial distribution of silver at the contact zone of reduced rocks with oxidized rocks (Rote Fäule) in the Cu-Ag Radwanice-Gaworzyce deposit
Autorzy:
Chmielewski, Andrzej
Oszczepalski, Sławomir
Głuszyński, Andrzej
Kuczak, Artur
Powiązania:
https://bibliotekanauki.pl/articles/2076204.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ag-minerals
copper-silver deposit
Rote Fäule
Zechstein
minerały Ag
złoże miedzi i srebra
utwory utlenione
cechsztyn
Opis:
The characteristics of spatial distribution of silver minerals and Agin ore minerals within the Lower Zechstein formations at the contact zone between reduced rocks and the Rote Fäule oxidized rocks are shown. All presented outcomes are on based on rock material taken from mining profiles and some archival boreholes in the Radwanice-Gaworzyce deposit area. These studies were used microscopic observations in reflected light and by microprobe analyses using the CAMECASX-100. In all analyzed profiles, oxidized rocks (enriched in hematite) were found, which occur at various levels of the Kupferschiefer series beneath the reduced zone enriched in ore minerals. Silver in the reduced zone occurs in the form of its own minerals, such as: native silver, stromeyerite, mckinstryite, jalpaite, naumannite, silver amalgams. Futhermore, silver is present as Cu and Fe isomorphic substitutions in the crystal lattice of copper sulfides of the Cu-S and Cu-Fe-S groups and in As and Sb sulfosalt. In the oxidized zone, silver occurs as electrum, silver amalgams and substitutions in remnant copper sulfides. A decrease in the concentration of silverin ore minerals and in the content of silver minerals towards the top of the mineralized interval is characteristic. The concentration of silver (both in the form of its own minerals and as isomorphic substitutions in ores) is impoverished in the zone where the oxidation front crosses the Kupferschiefer shale than in the case when the stabilization of the redox front is at the border boundary of the Weissliegend sandstone with and the Kupferschiefer shale. The spatial distribution of silverin the Lower Zechstein formations at the contact zone between the reduced and oxidized rocks is the result of the evolution of ore mineralization, caused by the flows of mineralizing solutions, as evidenced by the depletion of the oxidized zone in silver, and its enrichment in the adjacent reduced rocks.
Źródło:
Przegląd Geologiczny; 2021, 69, 7; 411--426
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The stratigraphy of Zechstein strata in the East European Craton of Poland : an overview
Autorzy:
Peryt, Tadeusz Marek
Skowroński, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/2055871.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Zechstein
stratigraphy
palaeogeography
East European Craton
Main Dolomite
Platy Dolomite
Polska
Opis:
The sedimentary and stratigraphic patterns established for Zechstein of the western part of the Peribaltic Syneclise (and in particular the eastern Łeba Elevation) were applied to other parts of the East European Craton (EEC) in Poland: the eastern Baltic Syneclise and the Podlasie region. A very large number of mostly fully-cored borehole sections in the Puck Bay region certainly predestines the eastern Łeba Elevation area to use it as a model. The most part of the EEC, except of its part adjacent to the Teisseyre-Tornquist Zone, during the Zechstein deposition represents the marginal parts of the basin. The fauna occurring in the Zechstein carbonate deposits of the EEC makes it possible to distinguish between the Zechstein Limestone and the younger carbonate strata, but certainly not between the Main Dolomite and the Platy Dolomite and hence the facies models for the Zechstein that have been previously developed in the western part of the Peribaltic Syneclise augmented by sequence stratigraphic approach seem to be the best tool to apply in other peripheral areas in the EEC area. The Zechstein sequence in the western part of the Peribaltic Syneclise consists, in general terms, of three parts: (1) carbonate platform of the Zechstein Limestone (occurring only in the north-westernmost corner of the study area and passing into basin facies dominant in the most part of the area); (2) the PZ1 evaporite platform system composed of sulphate platforms and adjacent basin system and constituting the major part of the Zechstein sequence; and (3) the Upper Anhydrite-PZ3 cover. There is a consensus, as far as the western part of the Peribaltic Syneclise is concerned, that the Platy Dolomite platform is wider than the Main Dolomite platform. In the easternmost part of the Peribaltic Syneclise, the stratigraphical interpretations are diverse. We have included the anhydrite overlying the Zechstein Limestone into the Upper Anhydrite, and concluded that the overlying interbedded mudstone and anhydrite also belong to the Upper Anhydrite. When above the Upper Anhydrite one carbonate unit occurs, it is assigned either to the Main Dolomite and Platy Dolomite, or to the Platy Dolomite. The same conclusion is proposed for the marginal parts of the Podlasie Bay. The deposition of Zechstein Limestone resulted in the origin of carbonate platforms along the basin margins which changed an inherited topographic setting. The Lower Anhydrite deposits are lowstand systems tracts (LST) deposits, lacking in more marginal parts of the western and eastern Peribaltic Syneclise and in the major part of the Podlasie Bay. The accommodation space existed and/or created during the Lower Anhydrite and the Oldest Halite deposition in the Baltic and Podlasie bays was filled and at the onset of the Upper Anhydrite deposition, a roughly planar surface existed except in the area adjacent to the main Polish basin. The Upper Anhydrite deposits are transgressive systems tracts deposits and then highstand systems tracts deposits and they encroached the Zechstein Limestone platforms. The Upper Anhydrite deposition was terminated by sea level fall, and the Upper Anhydrite deposits in the marginal areas became subject to karstification. The Main Dolomite transgression took place in several phases but its maximum limit did not reach the Upper Anhydrite limit. The deposition of the PZ2 chlorides (LST deposits) resulted in the filling of the accommodation space that was inherited after the deposition of the Main Dolomite and the Basal Anhydrite. Subsequently, the area became exposed, and marine deposits (Grey Pelite and Platy Dolomite) related to the last major transgression during the life of the Zechstein basin that resulted in a flooding of the exposed surface of older Zechstein deposits, including the area that was emergent during deposition of the PZ2 cycle. Microbial carbonates, being stromatolites and thrombolites, are a common feature of all Zechstein carbonate units but in particular this is the case of the Platy Dolomite. There are no direct premises allowing for convincing settlement doubts regarding the stratigraphical position of the upper carbonate unit in many cases, but several lines of evidence suggest that, as in the entire Zechstein basin, the Main Dolomite considerably shifted basinward, and the Platy Dolomite – landward, although it is difficult to ascertain whether the original Platy Dolomite extent was similar to or greater than the limit of the Zechstein Limestone as elsewhere in the Zechstein Basin.
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 4
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The stratigraphy of Zechstein strata in the East European Craton of Poland : an overview
Autorzy:
Peryt, Tadeusz Marek
Skowroński, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/2060632.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Zechstein
stratigraphy
palaeogeography
East European Craton
Main Dolomite
Platy Dolomite
Polska
Opis:
The sedimentary and stratigraphic patterns established for Zechstein of the western part of the Peribaltic Syneclise (and in particular the eastern Łeba Elevation) were applied to other parts of the East European Craton (EEC) in Poland: the eastern Peribaltic Syneclise and the Podlasie region. A very large number of mostly fully-cored borehole sections in the Puck Bay region certainly predestines the eastern Łeba Elevation area to use it as a model. The most part of the EEC, except of its part adjacent to the Teisseyre-Tornquist Zone, during the Zechstein deposition represents the marginal parts of the basin. The fauna occurring in the Zechstein carbonate deposits of the EEC makes it possible to distinguish between the Zechstein Limestone and the younger carbonate strata, but certainly not between the Main Dolomite and the Platy Dolomite and hence the facies models for the Zechstein that have been previously developed in the western part of the Peribaltic Syneclise augmented by sequence stratigraphic approach seem to be the best tool to apply in other peripheral areas in the EEC area. The Zechstein sequence in the western part of the Peribaltic Syneclise consists, in general terms, of three parts: (1) carbonate platform of the Zechstein Limestone (occurring only in the north-westernmost corner of the study area and passing into basin facies dominant in the most part of the area); (2) the PZ1 evaporite platform system composed of sulphate platforms and adjacent basin system and constituting the major part of the Zechstein sequence; and (3) the Upper Anhydrite-PZ3 cover. There is a consensus, as far as the western part of the Peribaltic Syneclise is concerned, that the Platy Dolomite platform is wider than the Main Dolomite platform. In the easternmost part of the Peribaltic Syneclise, the stratigraphical interpretations are diverse. We have included the anhydrite overlying the Zechstein Limestone into the Upper Anhydrite, and concluded that the overlying interbedded mudstone and anhydrite also belong to the Upper Anhydrite. When above the Upper Anhydrite one carbonate unit occurs, it is assigned either to the Main Dolomite and Platy Dolomite, or to the Platy Dolomite. The same conclusion is proposed for the marginal parts of the Podlasie Bay. The deposition of Zechstein Limestone resulted in the origin of carbonate platforms along the basin margins which changed an inherited topographic setting. The Lower Anhydrite deposits are lowstand systems tracts (LST) deposits, lacking in more marginal parts of the western and eastern Peribaltic Syneclise and in the major part of the Podlasie Bay. The accommodation space existed and/or created during the Lower Anhydrite and the Oldest Halite deposition in the Baltic and Podlasie bays was filled and at the onset of the Upper Anhydrite deposition, a roughly planar surface existed except in the area ad jacent to the main Polish basin. The Upper Anhydrite deposits are transgressive systems tracts deposits and then highstand systems tracts deposits and they encroached the Zechstein Limestone platforms. The Upper Anhydrite deposition was terminated by sea level fall, and the Upper Anhydrite deposits in the marginal areas became subject to karstification. The Main Dolomite transgression took place in several phases but its maximum limit did not reach the Upper Anhydrite limit. The deposition of the PZ2 chlorides (LST deposits) resulted in the filling of the accommodation space that was inherited after the deposition of the Main Dolomite and the Basal Anhydrite. Subsequently, the area became exposed, and marine deposits (Grey Pelite and Platy Dolomite) related to the last major transgression during the life of the Zechstein basin that resulted in a flooding of the exposed surface of older Zechstein deposits, including the area that was emergent during deposition of the PZ2 cycle. Microbial carbonates, being stromatolites and thrombolites, are a common feature of all Zechstein carbonate units but in particular this is the case of the Platy Dolomite. There are no direct premises allowing for convincing settlement doubts regarding the stratigraphical position of the upper carbonate unit in many cases, but several lines of evidence suggest that, as in the entire Zechstein basin, the Main Dolomite considerably shifted basinward, and the Platy Dolomite - landward, although it is difficult to ascertain whether the original Platy Dolomite extent was similar to or greater than the limit of the Zechstein Limestone as elsewhere in the Zechstein Basin.
Źródło:
Geological Quarterly; 2021, 65, 4; 21--27
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dokumentowanie głębokich złóż miedzi i srebra – kryteria inwestorskie
Documenting deep copper and silver deposits – investor’s criteria
Autorzy:
Speczik, Stanisław
Bieńko, Tomasz
Pietrzela, Alicja
Zieliński, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2030444.pdf
Data publikacji:
2020
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
złoża rud miedzi i srebra
graniczne wartości parametrów złoża
szacowanie zasobów
mineralizacja
cechsztyn
copper and silver deposits
parameters defining a mineral deposit
estimation of resources
mineralisation
Zechstein
Opis:
W artykule przedstawiono doświadczenia w dokumentowaniu głębokich złóż rud Cu-Ag na monoklinie przedsudeckiej, pozyskane w ramach projektu poszukiwań realizowanego przez spółki Miedzi Copper Corp. Program badań archiwalnych materiałów geologicznych, a następnie wierceń poszukiwawczo-rozpoznawczych (od 2013 r.) pozwolił na odkrycie trzech nowych złóż miedzi i srebra: Nowa Sól, Sulmierzyce Północ i Mozów. Dwa z nich zostały już udokumentowane: Nowa Sól w kategorii C2oraz Sulmierzyce Północ w kategorii C2+D, z czego ta pierwsza dokumentacja została już zatwierdzona przez organ administracji geologicznej. Na koncesjach wchodzących w skład złoża Nowa Sól trwają dalsze prace wiertnicze mające na celu udokumentowanie tego złoża w kategorii C1, umożliwiającej starania o pozyskanie koncesji wydobywczej. Podstawowym problemem przy dokumentowaniu tych złóż było opracowanie własnych inwestorskich granicznych wartości parametrów definiujących złoże i jego granice, w związku z zaleganiem udokumentowanych złóż na głębokościach przekraczających 1500 m oraz rosnącą temperaturą i ciśnieniem górotworu. Parametry te zaproponowano na podstawie wykonanych przed rozpoczęciem prac wiertniczych opracowań typu „pre-feasibility study”, które wielokrotnie uaktualniano w związku ze zmieniającymi się warunkami ekonomicznymi oraz doświadczeniami z istniejących głębokich kopalń na świecie. W efekcie, wstępne założenia były wielokrotnie zmieniane, zaś wpływ nowych technologii na parametry graniczne okazał się istotniejszy od wcześniej przyjmowanych czynników, takich jak wyższa zasobność złoża, miąższość i zawartość procentowa składnika użytecznego. Ponadto, dla oceny realnego wpływu parametrów takich jak siatka kilometrowa i ilość wykonanych otworów na dokładność liczenia zasobów i ich wielkość, wykonano analizę dotychczas udokumentowanych złóż Cu-Ag w obszarze przedsudeckim.
The paper presents experience in documenting deep copper and silver deposits of the Fore-Sudetic Monocline, gained during the implementation of a prospecting program conducted by companies from the Miedzi Copper Corp. group. Analyses of historical geological materials followed by a drilling program for prospecting and exploration (since 2013) led to the discovery of three new copper and silver deposits: Nowa Sól, Sulmierzyce North and Mozów. Two of them have already been documented: the Nowa Sól deposit in the C2 category and the Sulmierzyce North deposit in the C2+D categories, with the Nowa Sól documentation already approved by the geological administration authority. Concessions included in the Nowa Sól deposit are objects of continuing drilling operations. Their aim is to document this deposit in the C1 category, which would allow an application for a mining concession. The basic problem with documenting these deposits includes the development of investor’s own threshold values of parameters that define a mineral deposit and its boundaries, due to the position of both documented deposits at depths exceeding 1500 m, as well as the increasing temperature and pressure of rock mass. These parameters were proposed on the basis of pre-feasibility studies prepared before the implementation of the drilling program, which had been updated several times in accordance with changing economic conditions and experiences earned from existing deep mines all around the world. As a result, the preliminary assumptions were modified multiple times, and the influence of new technologies on the threshold values of parameters turned out to be more important than previously considered factors, such as higher productivity of the deposit, thickness and percentage of a useful element. Furthermore, an analysis of Cu-Ag deposits documented so far in the fore-Sudetic area was performed in order to assess the factual impact of parameters like the kilometre grid and the number of drilled boreholes on the accuracy and amount of calculated resources.
Źródło:
Górnictwo Odkrywkowe; 2020, 61, 1; 43--54
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogeochemical modeling of water injection into an oil and gas well under high-pressure high-temperature (HPHT) conditions
Autorzy:
Krogulec, Ewa
Sawicka, Katarzyna
Zabłocki, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/1835584.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
water injection
well
hydrogeochemical modeling
Zechstein Main Dolomite
Polska
wtrysk wody
odwiert
modelowanie hydrogeochemiczne
cechsztyński dolomit główny
Polska
Opis:
Approximately 80% of water extracted from oil and gas deposits in Poland is disposed of by injection into the rock matrix. The aim of the model research was to predict both the hydrochemical reactions of water injected into wells for its disposal and the hydrogeochemical processes in the reservoir formation. The purpose of hydrogeochemical modeling of the hydrocarbon formation was also to determine the potential of formation waters, injection waters, and their mixtures to precipitate and form mineral sediments, and to determine the corrosion risk to the well. In order to evaluate saturation indices and corrosion ratios, the geochemical programs PHREEQC and DownHole SAT were used. The results of hydrogeochemical modeling indicate the possible occurrence of clogging in the well and the near-well zone caused mainly by the precipitation of iron compounds (iron hydroxide Fe(OH)3 and siderite FeCO3) from the formation water due to the presence of high pressures and temperatures (HPHT). There is also a high certainty of the precipitation of carbonate sediments (calcite CaCO3, strontianite SrCO3, magnesite MgCO3, siderite FeCO3) from the injection water within the whole range of tested pressures and temperatures. The model simulations show that temperature increase has a much greater impact on the potential for precipitation of mineral phases than pressure increase.
Źródło:
Acta Geologica Polonica; 2020, 70, 3; 419-433
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogeochemical modeling of water injection into an oil and gas well under high-pressure high-temperature (HPHT) conditions
Autorzy:
Krogulec, Ewa
Sawicka, Katarzyna
Zabłocki, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/138717.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
water injection
well
hydrogeochemical modeling
Zechstein Main Dolomite
Polska
wtrysk wody
odwiert
modelowanie hydrogeochemiczne
cechsztyński dolomit główny
Polska
Opis:
Approximately 80% of water extracted from oil and gas deposits in Poland is disposed of by injection into the rock matrix. The aim of the model research was to predict both the hydrochemical reactions of water injected into wells for its disposal and the hydrogeochemical processes in the reservoir formation. The purpose of hydrogeochemical modeling of the hydrocarbon formation was also to determine the potential of formation waters, injection waters, and their mixtures to precipitate and form mineral sediments, and to determine the corrosion risk to the well. In order to evaluate saturation indices and corrosion ratios, the geochemical programs PHREEQC and DownHole SAT were used. The results of hydrogeochemical modeling indicate the possible occurrence of clogging in the well and the near-well zone caused mainly by the precipitation of iron compounds (iron hydroxide Fe(OH)3 and siderite FeCO3) from the formation water due to the presence of high pressures and temperatures (HPHT). There is also a high certainty of the precipitation of carbonate sediments (calcite CaCO3, strontianite SrCO3, magnesite MgCO3, siderite FeCO3) from the injection water within the whole range of tested pressures and temperatures. The model simulations show that temperature increase has a much greater impact on the potential for precipitation of mineral phases than pressure increase.
Źródło:
Acta Geologica Polonica; 2020, 70, 3; 419-433
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magazyny gazu ziemnego w cechsztyńskich formacjach solnych elementem bezpieczeństwa energetycznego Polski
Natural gas storages in Zechstein salt formations as an element of energy safety in Poland
Autorzy:
Zeljaś, Dagmara
Powiązania:
https://bibliotekanauki.pl/articles/2076017.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
podziemne magazynowanie gazu
bezpieczeństwo energetyczne
cechsztyńskie złoża soli
jaskinie solne
underground gas storage
energy security
Zechstein salt deposits
salt caverns
Opis:
Based on the formal and legal regulations, the need to increase the capacity of cavern underground gas storage in Poland is demonstrated. The author raised the problem of country's energy security, which is partly based on intervention reserves of energy carriers. A description of the state of actual storage capacities and strategic reserves of natural gas in Poland is presented, and the level of reserves is assessed based on applicable law. Focusing on the advantages of salt deposits in the context of underground gas storage, the author presents safe conditions for underground gas storage and the possible location of cavern underground gas storage in two prospective salt deposits: the Damasławek salt dome and the layer salt deposit of the Fore-Sudetic Monocline. The article draws attention to the complexity of the issue of geomechanical stability of caverns for underground gas storage, taking into account the type of deposit (layer/dome).
Źródło:
Przegląd Geologiczny; 2020, 68, 11; 824---832
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowe dane o budowie geologicznej wysadu solnego Lubień. Część I – interpretacja danych geofizycznych
New data on the geological structure of the Lubień Salt Dome. Part I - interpretation of geophysical data
Autorzy:
Wachowiak, Jacek
Roman, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2192037.pdf
Data publikacji:
2020
Wydawca:
Polskie Stowarzyszenie Górnictwa Solnego
Tematy:
górny perm
cechsztyn
wysad solny Lubień
sejsmik
model 3D
Upper Permian
zechstein
Lubień salt dome
seismic
3D model
Opis:
Wysad solny Lubień jest jedną z kilkudziesięciu struktur solnych występujących na Niżu Polskim. Został zidentyfikowany badaniami grawimetrycznymi, prowadzonymi w latach 1937-1950. Zalega w formie nieregularnego słupa solnego, zwężającego się wraz z głębokością. W przekroju poprzecznym wysad ma kształt kolisty o maksymalnej średnicy około 2,8 km. Wnętrze wysadu budują ewaporaty cechsztyńskiej serii solnej, które są przykryte czapą anhydrytowo-gipsowo- -ilastą. W otoczeniu wysadu występują utwory jury górnej i środkowej, nad którymi zalegają osady paleogenu i neogenu oraz czwartorzędu. W rejonie występowania wysadu odwiercono 31 otworów, z których 20 nawierciło serię solną. Zostały też wykonane liczne badania i pomiary geofizyczne. Na podstawie danych z pomiarów sejsmicznych wykonanych w 2014 roku oraz ich reprocesingu i reinterpretacji w 2017 i 2018 roku, opracowano modele przestrzenne wysadu Lubień i zaktualizowano podstawowe parametry wysadu.
The Lubień Salt Dome is one of the several dozen salt structures found in the Polish Lowlands. He was identified by gravimetric research conducted in the years 1937-1950. It lies in the form of an irregular salt column, narrowing with depth. In its cross-section, the dome has a circular shape with a maximum diameter of about 2.8 km. The interior of the dome is built by evaporates of the Zechstein salt series, which are cooverlain by an anhydrite-gypsum-clay cap-rock. In the vicinity of the dome there are Upper and Middle Jurassic formations over which Palaeogene, Neogene and Quaternary deposits. 31 holes were drilled in the area of the dome, 20 of which drilled a series of salt. Numerous geophysical surveys and measurements were also made. Based on the data from seismic measurements made in 2014 and their reprocessing and reinterpretation in 2017 and 2018, spatial models of the Lubień Salt Dome were developed and the basic parameters of the dome were updated.
Źródło:
Przegląd Solny; 2020, 15; 14--21
2300-9349
Pojawia się w:
Przegląd Solny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena geologicznych możliwości lokowania kawern magazynowych wodoru w pokładowych wystąpieniach soli kamiennych górnego permu (cechsztyn) w Polsce
Geological possibility of hydrogen storage caverns location in the Upper Permian (Zechstein) stratiform rock salts in Poland
Autorzy:
Czapowski, Grzegorz
Tarkowski, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2192047.pdf
Data publikacji:
2020
Wydawca:
Polskie Stowarzyszenie Górnictwa Solnego
Tematy:
kawernowe magazynowanie wodoru
pokładowe wystąpienia soli kamiennej
cechsztyn
hydrogen cavern storage
stratiform rock salts
zechstein
Opis:
Podziemne magazynowanie wodoru jest opłacalną i bezpieczną formą magazynowania nośników energii (np. Chromik, 2015, 2016), szczególnie przy fluktuacjach związanych z produkcją energii przez OZE zaś instalacje wykorzystujące ten gaz do produkcji energii są przyjazne środowisku, gdyż źródłem jego pozyskiwania i spalania jest woda. Jednym z optymalnych miejsc takiego magazynowania są kawerny magazynowe, ługowane w grubych warstwach soli kamiennej, budujących wysady solne (np. Czapowski, Tarkowski, 2018; Tarkowski, Czapowski, 2018) oraz wystąpienia pokładowe.
Underground hydrogen storage is a profitable and safe form of energy sources storage reacting quickly for fluctuations on the energy market (e.g. Chromik, 2015, 2016), especially in a case of energy produced by the Renewable Energy Sources being non-toxic to the environment because both the gas source and the final product in such installations is water. Salt caverns, leached in thick rock salt complexes of salt diapirs (e.g. Czapowski, Tarkowski, 2018; Tarkowski, Czapowski, 2018) and stratiform salt occurrences are one of recommended optimal form of such gas storage
Źródło:
Przegląd Solny; 2020, 15; 22--24
2300-9349
Pojawia się w:
Przegląd Solny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The dolomite problem : evidence from 3D modeling, XRD and geochemical data of Zechstein reefs (Upper Permian, Germany)
Autorzy:
Blendinger, Wolfgang
Powiązania:
https://bibliotekanauki.pl/articles/2060255.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Zechstein
dolomite
limestone
isotopes
3D modeling
fluid flow
Opis:
Three-dimensional modeling of the limestone and dolomite distribution in an Upper Permian (Zechstein) stromatolite-bryozoan reef, ~500 m in diameter and 35 m thick (77 borehole cores, 172 data points), shows that dolomite occurs as laterally and vertically discontinuous intervals. The prevailing mineral phases are near-stoichiometric dolomite and Mg-free calcite (370 XRD and 274 XRF analyses). Both δ13C and δ18O (526 analyses) show a spread of ~10‰ and co-vary with the mineralogy; the heaviest dolomite and calcite δ13C differ by ~1.5‰. Diagenetic modifications caused by flowing meteoric fluids could account for the observed “inverted J” trend of stable and the radiogenic signature of 87Sr/86Sr (23 analyses), but neither vertical nor horizontal gradients occur in the reef modeled. Because the dolomite geometries are incompatible with those predicted by fluid flow models, and the limestone-dolomite difference in δ13C overlaps estimates of isotope fractionation associated with Mg content, the dolomite studied was a depositional Very High Mg Calcite recrystallized to dolomite in a semi-closed diagenetic system rather than a Low Mg Calcite transformed by a dolomitization process. The isotope pattern suggests biogenic fractionation and/or loss of heavy stable C and O and light Sr isotopes during diagenesis.
Źródło:
Geological Quarterly; 2020, 64, 3; 692--710
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza mikrofacjalna dolomitu głównego (Ca2) we wschodniej części wielkopolskiej platformy węglanowej
Microfacies analysis of the Main Dolomite (Ca2) in the eastern part of the Wielkopolska Carbonate Platform (W Poland)
Autorzy:
Krzyżak, Ewelina
Powiązania:
https://bibliotekanauki.pl/articles/2075967.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
basen permski
główny dolomit cechsztyński
Ca2
platforma węglanowa
analiza mikrofrakcji
Permian Basin
Zechstein Main Dolomite
carbonate platform
microfacies analysis
Opis:
Investigation of the Permian Basin in the western part of the Polish Lowland was initiated in 1961 when the Rybaki field was discovered - the first one outside the Carpathians in Poland. The Main Dolomite (Ca2) in the eastern part of the Wielkopolska Platform, located in western Poland, is characterized by a significant variety of microfacies, hence this research is aimed at better interpretation and understanding of depositional environments of current reservoir rocks as well as possibility of identification of facies distribution within the investigated carbonate platform. A detailed microfacies analysis of the Main Dolomite was conducted, which was supported by core logging. The author interpreted depositional environments and generated a 3D model of the top of the Main Dolomite using seismic reflection data. An attempt to correlate microfacies between the analyzed wells was also performed. Integrated analyses of thin sections and drill cores from 4 wells allowed me to interpret the depositional environments of the Main Dolomite. The generated 3D model of the top of the Main Dolomite provided a better insight into subsurface tectonics, paleogeography of the analyzed area and a better understanding of depositional lithofacies environments.
Źródło:
Przegląd Geologiczny; 2019, 67; 172--175
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 101

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