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Tytuł:
Interpretacja i wizualizacja danych otworowych w utworach niższego paleozoiku obszaru kratonu wschodnioeuropejskiego i karbonu podłoża monokliny przedsudeckiej
Interpretation and visualization of well data in the lower Palaeozoic of the East European Craton and in the Carboniferous of the Fore-Sudetic Homocline basement
Autorzy:
Roman, M. G.
Powiązania:
https://bibliotekanauki.pl/articles/2075494.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
otwory wiertnicze
gaz łupkowy
tight gas
well logging
shale gas
Opis:
In order to determine the lithological complexes and to evaluate the prospective shale/tight gas zones, analysis of well data and a multi-well correlation have been performed. Over 30 wells were used for the analysis. Lithostratigraphic units have been verified and correlated in the wells. In some of them, TOC (Total Organic Carbon), effective porosity and lithological profiles have been determined after calibration with the laboratory analysis performed on core samples. Vast majority of the gathered data were visualized in 10 correlation lines.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 976--981
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niemiecki projekt zmiany przepisów w Prawie Wodnym i Prawie Ochrony Środowiska dotyczących zakazu szczelinowania hydraulicznego i monitoringu ryzyka : implikacje do wydobycia gazu z łupków
The draft of changes in theWater Law and the Environmental Law in Germany, regarding prohibition of hydraulic fracturing and risk monitoring: implications to the shale gas extraction
Autorzy:
Mamczar, M.
Jędrysek, M. O.
Powiązania:
https://bibliotekanauki.pl/articles/2075341.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz łupkowy
prawo
szczelinowanie
gaz niekonwencjonalny
shale gas
law
hydraulic fracturing
unconventional gas
Opis:
In Germany there is no agreement among politicians and local government officials regarding the safety and economic sense of the exploration and production of shale gas. However Germany does not reject completely the need to invest in the development of this sector. The political parties speak cautiously about the hydraulic fracturing, because they do not want to lose their voters. However, in a country which is in 70% dependent on the import of natural resources, the industry interest in the search for alternatives to Russian gas and oil energy sources increases. It is no secret that after the withdrawal from nuclear power, the German economy has to change its energy profile. Currently, Germany increases the use of coal, but could it have economic sense? Because of green certificates and European trend to reduce the emission of CO2, the Germans do not depart from the investment in shale gas. It is confirmed by the publication of a draft of amending the acts in November 2014. However some part of German society expected much more strict rules, including a total ban on hydraulic fracturing. The German law should, mobilize the Polish Parliament (Sejm) to develop a comprehensive law regulating the mining and geological activity that is in line with EU law.
Źródło:
Przegląd Geologiczny; 2015, 63, 7; 391--396
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncesje na poszukiwanie i rozpoznawanie złóż węglowodorów w Polsce w tym shale gas i tight gas
Autorzy:
Zalewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/2066286.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
złoża węglowodorów
gaz łupkowy
gaz uwięziony w szczelinach
hydrocarbon deposits
shale gas
tight gas
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 213-215
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza możliwości wykorzystania wód podziemnych na potrzeby eksploatacji gazu z formacji łupkowych na obszarze objętym pracami poszukiwawczo-rozpoznawczymi
Analysis of the possibility of using groundwater for the gas exploitation from shale formations in the area covered by the exploration work
Autorzy:
Mikołajków, J.
Nidental, M.
Woźnicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2075448.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz łupkowy
szczelinowanie
zasoby wód podziemnych
shale gas
hydraulic fracturing
groundwater resources
Opis:
Exploitation of unconventional gas requires the use of hydraulic fracturing in horizontal wells’ network, which allows the penetration of deposits over a large area. Despite the research to find innovative solutions, presently hydraulic fracturing is carried out using a fracturing fluid prepared on basis of water. The use of hydraulic fracturing on exploitation’s scale of unconventional gas (several horizontal wells at a single location) requires ensuring access to a large amount of water in a relatively short period of time. Analysis of possibilities of using of groundwater in areas of exploration and exploratory work is necessary at an early stage investment planning and should be one of the key factors determining the possibility of exploitation in the area. In this paper was carried out a variant analysis of the availability of groundwater resources in terms of their use for the purpose of exploitation.
Źródło:
Przegląd Geologiczny; 2015, 63, 10/2; 944--949
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola geofizyki wiertniczej w określeniu zasobów gazu ziemnego w łupkach
Application of wire log analysis for petrophysical evaluation and determination of shale gas reserves
Autorzy:
Drop, K.
Kozłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074763.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz łupkowy
interpretacja geofizyki wiertniczej
łupki
shale gas
petrophysical interpretation
Silurian Shale
Opis:
The paper presents differences between conventional and shale gas plays (Tab. 1). Shale gas concept comprises a wide range of reservoirs, from the coalbed to tight gas plays. In Europe, where the shale gas rush has just started, shaly rocks were treated so far as unproductive and high quality data sets necessary for evaluating properties of those rocks are usually missing. Therefore, US shale gas plays like Barnett and Haynesville are widely used as valuable reference tools (Jacobi, 2008; Parker, 2009). Coal, where gas is essentially stored entirely by sorption, represents one end of the unconventional gas spectrum and tight gas sands, where gas is essentially stored by compression only - the other end of that spectrum. In turn, shale reservoirs with gas entrapped by sorption and compression, fill the space between the two endpoints. Differentiation of those two components is one of the primary goals of an analysis program. Shale gas reservoirs are formed by a wide variety of rock types which makes it necessary to use most appropriate technologies to characterize both coalbed and tight gas reservoirs. The current paper concentrates on tools for evaluating petrophysical parameters, most suitable for shale gas plays. In the case of old wells with old fashion Soviet logs, the uncompensated neutron gamma tool was commonly used tool. This was the only porosity reading curve in log suite, "neutron porosity curve" which could be overlaid with natural gamma ray (GR) (Fig. 1). Natural gamma ray curve is a good indicator of organic matter, which adsorbed uranium. Other hydrocarbon signatures can be traced on the basis of SP vs GR, GR vs resistivity. Some of hydrocarbon signatures can be related to TOC from core lab measurements. For contemporary good quality wire line log curves the Passey et al. (1990) method has been applied. This method is based on computation of separation between acoustic transit time and resistivity (R) (Fig. 2). The resulting difference is used to calculate TOC taking into consideration maturity of organic matter which is parameter for a bunch of relationships (TOC vs R). Local calibration R to TOC from cores are required. In order to determine reliable relationships between R, gas contents to TOC, the high technology coring service and sensitive laboratory measurements are necessary. The results of petrophysical analyses are important for estimations of gas resources in shales. The formulas for computation of conventional and unconventional gas reserves are generally similar. However, in the case of the unconventional gas reserves, instead of porosity reservoir storage the rock density is applied, and for determinations of hydrocarbon volume-the gas content is applied in place of hydrocarbon saturation. If European unconventional reservoirs turn to be profitable then continent landscape will also change. The big gas fields would require dense networks of rigs that will have some negative environmental impact. This would require a change in industry structure, as well as in public opinion and legal regulations.
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 263-265
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka petrofizyczno-mineralogiczna wyznaczonych perspektywicznych kompleksów węglowodorowych na podstawie wybranych wyników badań laboratoryjnych
Petrophysical and mineralogical characterization of prospective hydrocarbon complexes estimated based on selected laboratory research results
Autorzy:
Dyrka, I.
Powiązania:
https://bibliotekanauki.pl/articles/2075501.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrofizyka
mineralogia
gaz łupkowy
tight gas
porowatość
petrophysics
mineralogy
shale gas
shale porosity
Opis:
This article hasbeen prepared based on the chapter devoted to research of petrophysical properties of shale and tight sandstones within the project: “Identification of prospective zones for unconventional hydrocarbon accumulations in Poland, stage I.” Petrophysical and mineralogical characterization of particular prospective complexes in the Baltic, Podlasie-Lublin basin and the Carboniferous basin of south-western Poland (Fore-Sudetic Homocline basement), is based on selected laboratory tests of rocks, performed by the Oil and Gas Institute – NRI in Kraków. These analyses included investigations of total porosity and effective porosity, helium porosity, total permeability, silica content, clay content and cumulative content of quartz, and feldspars and carbonates. For particular complexes mean values of individual parameters were calculated. Then, an assessment was made to find out whether they meet the established criteria and whether the results correlate with each other in the boreholes across each area.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 982--986
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silurian shales of the East European Platform in Poland : some exploration problems
Autorzy:
Porębski, S.J.
Prugar, W.
Zacharski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075023.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Silurian
black shale
shale gas
unconventional play
czarne łupki
gaz łupkowy
niekonwencjonalna gra
Opis:
The pericratonic Silurian shale succession in Poland, despite its reasonably well-constrained geological framework, entails a number of contentious issues that need to be resolved before this emerging shale gas play will enter a stage of successful development. The succession is thought to have originated in a Caledonian foredeep encroaching distally onto a pericratonic shelf ramp. However, the geochemical signature of the mudrocks is consistent with a cratonic rather than orogenic sourcing, the proximal part of the foredeep basin-fill is apparently missing, and the shale succession juxtaposes in part across the Teisseyre-Tornquist Zone against suspected terranes with no evidence of Silurian tectonism. Organic-rich Llandovery– Wenlock shales form a NW-SE striking central belt that is increasingly calcareous toward the craton (NE) and more silty toward the inferred orogen (SW), with the TOC content decreasing in both directions perpendicular to the strike. The TOC trend seems consistent with the deep-downlap model of black shale deposition suggested for many Paleozoic foredeep basins, but does not quite agree with the outer neritic to upper bathyal depths assumed for the shale deposition. Preliminary results from three wells drilled by Orlen Upstream in the Lublin Basin indicate that the Llandovery–Wenlock shales were deposited on a distal shelf ramp sheltered from the craton by shelf carbonate shoals and periodically affected by weak storm-generated currents. The impact of storms on water column resulted in intermittent rises of oxygen content in the otherwise anoxic to dysoxic near-bottom conditions. The prospective interval is dominated by calcite-cemented clayey mudstones showing moderate to good reservoir qualities. It is cut locally by ENE- or NE-dipping, steep fractures favourable for fluid transmissibility, and a NE or SWdirection is most advantageous for artificial fracturing. This interval is capped with a Ludlow calcite-cemented, laminated siltstone that forms a regional correlation marker and shows soft-sediment deformations attributable to gravitational collapse on a NE-dipping paleoslope. If correct, this interpretation might imply the encroachment of orogen-fed clinothem system onto the SW-inclined craton-margin shelf ramp.
Źródło:
Przegląd Geologiczny; 2013, 61, 11-1; 630-638
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niekonwencjonalne złoża ropy i gazu – efektywne schematy przetwarzania danych w oprogramowaniu Petrel/PetroMod w celu oceny ryzyka poszukiwań i oceny zasobów prognostycznych
Unconventional oil and gas : efficient petrel/petromod Workflows for exploration risk and resource assessments
Autorzy:
Wygrala, B.
Powiązania:
https://bibliotekanauki.pl/articles/2075113.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
modelowanie systemów naftowych
gaz łupkowy
olej łupkowy
PetroMod
petrel
petroleum systems modelling
shale gas
shale oil
Petrel
Opis:
This paper provides a basic introduction to workflows for shale oil/gas exploration risk and resource assessments. It starts with definitions of conventional and unconventional petroleum systems and brief descriptions of several North American unconventional plays. The core of the paper is a short description of workflows based on industry-standard Petrel and PetroMod software tools which enable rapid, auditable and geology based assessments of petroleum resources. The main steps of the iterative Exploration Risk Assessment workflow and its extension to include Petroleum Resource Assessments are described. The successful utilization these workflows is illustrated using a 3D Petrole
Źródło:
Przegląd Geologiczny; 2014, 62, 12; 825--841
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Łupki sylurskie platformy wschodnioeuropejskiej w Polsce : wybrane problemy poszukiwawcze
Silurian shales of the East European Platform in Poland : some exploration problems
Autorzy:
Porębski, S.J.
Prugar, W.
Zacharski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075081.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Silurian
black shale
shale gas
unconventional play
sylur
ciemne łupki
gaz łupkowy
niekonwencjonalna gra
Opis:
The pericratonic Silurian shale succession in Poland, despite its reasonably well-constrained geological framework, entails a number of contentious issues that need to be resolved before this emerging shale gas play will enter a stage of successful development. The succession is thought to have originated in a Caledonian foredeep encroaching distally onto a pericratonic shelf ramp. However, the geochemical signature of the mudrocks is consistent with a cratonic rather than orogenic sourcing, the proximal part of the foredeep basin-fill is apparently missing, and the shale succession juxtaposes in part across the Teisseyre-Tornquist Zone against suspected ter- ranes with no evidence of Silurian tectonism. Organic-rich Llandovery-Wenlock shales form a NW-SE striking central belt that is increasingly calcareous toward the craton (NE) and more silty toward the inferred orogen (SW), with the TOC content decreasing in both directions perpendicular to the strike. The TOC trend seems consistent with the deep-downlap model of black shale deposition suggested for many Paleozoic foredeep basins, but does not quite agree with the outer neritic to upper bathyal depths assumed for the shale deposition. Preliminary results from three wells drilled by Orlen Upstream in the Lublin Basin indicate that the Llandovery-Wenlock shales were deposited on a distal shelf ramp sheltered from the craton by shelf carbonate shoals and periodically affected by weak storm-generated currents. The impact of storms on water column resulted in intermittent rises of oxygen content in the otherwise anoxic to dysoxic near-bottom conditions. The prospective interval is dominated by calcite-cemented clayey mudstones showing moderate to good reservoir qualities. It is cut locally by ENE- or NE-dipping, steep fractures favourable for fluid transmissibility, and a NE or SW direction is most advantageous for artificial fracturing. This interval is capped with a Ludlow calcite-cemented, laminated siltstone that forms a regional correlation marker and shows soft-sediment deformations attributable to gravitational collapse on a NE-dippingpaleoslope. If correct, this interpretation might imply the encroachment of orogen-fed clinothem system onto the SW-inclined craton-margin shelf ramp.
Źródło:
Przegląd Geologiczny; 2013, 61, 8; 468--477
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geofizyka otworowa w dobie poszukiwań gazu w łupkach : modele interpretacyjne i specyfika zastosowań w zagadnieniach rozpoznawania złóż gazu z łupków
Well logging in the world of shale gas plays : interpretative models and specific applications in the shale gas research
Autorzy:
Zorski, T.
Jarzyna, J.
Derkowski, A.
Środoń, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075082.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
core data analysis
shale gas
well logging
analiza danych rdzeni
gaz łupkowy
geofizyka otworowa
Opis:
The purpose of this article is to review the possibilities of using well logging in the exploration and completion of the shale gas plays. This presentation is addressed to a broad geological community. The article was divided in two parts: the first one, already published in PG, which was focused on the borehole logging tools and methods, and the current one, which deals with the construction of petrophysical models and considers some specific aspects of well-logging application in the shale gas plays. For more inquiring readers, a comprehensive list of literature is presented. The construction of petrophysical models in the thin-bedded shale-sand Miocene gas formation of the Carpathian Foredeep is presented briefly as a possible predecessor of the methodology applicable in the shale gas plays based on domestic experiences. However, the application of well logging in shale gas formations, both at the evaluation and completion steps, differs in the methodology in comparison to conventional and even to thin-bed formations. This specificity is also discussed, where attention is focused on the quantity and quality of organic matter and its relation to gas. Low porosity and a special kind of pore space in organic shales are considered as well.
Źródło:
Przegląd Geologiczny; 2013, 61, 8; 478--488
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geofizyka otworowa w dobie poszukiwań gazu w łupkach : przegląd metod pomiarowych
Well logging in the world of shale gas plays : review of the logging methods
Autorzy:
Zorski, T.
Jarzyna, J.
Derkowski, A.
Środoń, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075079.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
core data analysis
shale gas
well logging
analiza danych rdzeni
gaz łupkowy
geofizyka otworowa
Opis:
The purpose of this article is to review the possibilities of using well logging in the exploration and completion of the shale gas plays. This presentation is addressed to a broad geological community. The article is divided in two parts, the first is focused on the borehole logging tools and methods, while the second describes the construction of petrophysical models and considers some specific aspects of well logging application in the shale gas plays. For the more inquiring readers a comprehensive list of literature is presented. Well logging is the way to acquire an important geological information from the boreholes, parallel to the core data analysis. Laboratory core analysis gives most reliable and comprehensive description of rock parameters, like mineral and chemical composition, kerogen content and its maturity, porosity, the pore space structure, density, permeability etc. However, this kind of analysis is time consuming and expensive. On the other hand, well logs give less accurate and usually not directly measureable values, which must be interpreted to achieve the requested parameters. These measurements are made continuously in natural rock conditions and the results can be obtained very quickly. Proper calibration methods are necessary to link the logging data and the detailed laboratory core analyses. A wide range of well logging tools is described briefly in the paper, and the electrical, nuclear, NMR, and sonic methods are presented in more detail. Special attention is paid to the great technological progress in well logging during the last two decades. This progress allows to cope with the increasing difficulties in the reservoir evaluation. Complicated geometry of the directional borehole, thin beds, shaly-sand lithologies, low porosities, and the specific the pore space distributions are the main challenges in the shale gas plays.
Źródło:
Przegląd Geologiczny; 2013, 61, 7; 424--434
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena rezerwy dostępnych zasobów wód podziemnych w zlewniach bilansowych na potrzeby szczelinowania hydraulicznego
Assessment of the reserve of available groundwater resources in balance catchments for hydraulic fracturing
Autorzy:
Duda, R.
Maruta, M.
Macuda, J.
Tyszewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/2075635.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wody podziemne
zasoby
rezerwa
szczelinowanie hydrauliczne
gaz łupkowy
groundwater
available resources
reserve
hydraulic fracturing
shale gas
Polska
Opis:
The paper presents a methodology for estimating reserves of available groundwater resources for use, inter alia, for the purpose of fracturing unconventional gas reservoirs. The assessment is based on the balance ofgroundwater available resources and water abstraction with the amount allowed by water intakes permits. The balance included a variant of the assessment of reserves of groundwater available resources under conditions of several years of drought, i.e. guaranteed resources. Estimation of reserves of groundwater resources was applied to water-management regions and to smaller units - the balance catchments, designated in the regions in order to determine the available surface water resources. The reserve of groundwater resourcesfor established and guaranteed resources was estimatedfor the selected water-management region - the Wietcisa river catchment. This catchment is part of the Stara Kiszewa concession for the exploration and exploitation of shale gas resources in the Lower Paleozoic Baltic Basin, northern Poland.
Źródło:
Przegląd Geologiczny; 2017, 65, 11/2; 1197--1201
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What could be the impact of shale gas exploitation on the water management?
Autorzy:
Woźnicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2066497.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
water management
shale gas
groundwater resources
groundwater contamination
gospodarka wodna
gaz łupkowy
zasoby wód podziemnych
skażenia wód gruntowych
Opis:
The industry related to the extraction of hydrocarbons from unconventional deposits (shale gas, tight gas, shale oil), developing intensely since the beginning of the 21st century, requires a comprehensive approach to environmental issues arising from the commonly used technology. Because of the hydrauling fracturing process, groundwater management issues are the most important. Analyses should be performed for the aspects of the project's water needs, water circulation system in the process, definition of the water sources, as well as for the issues related to the protection of surface and ground waters in the area of geological operations. In the light of the current European debate about the safe use of unconventional hydrocarbons, the need for integrated water management is particularly important.
Źródło:
Przegląd Geologiczny; 2013, 61, 11-1; 657--662
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shale gas in China : how much and when?
Gaz z łupków w Chinach : ile i kiedy?
Autorzy:
Changbo, Ch.
Pieńkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/2066803.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
shale gas
China
geology
resources
policy
cooperation with Poland
gaz łupkowy
Chiny
geologia
zasoby
polityka
współpraca z Polską
Opis:
China is ranked as the world’s largest resource-holder of unconventional gas (estimated at about 25–31 trillion cubic meters – tcm), and current production is 1.3 billion cubic meters (bcm). Also other unconventional resources(tight gas, CBM) are large in global standards. There are strong energy security reasons in China – a long run strategy for China is to reduce its dependency on imported gas resources, thus the growth of domestic output of unconventional gas production (coal bed methane, tight and in particular shale gas) has been recognized as very important both by the government, giving significant impetus to the development of shale gas extraction. However, significant uncertainties remain about the extent to which this resource will be developed as aspects of China’s geology and the structure of the gas sector (in terms of pricing as well as access to water and pipelines) and population density, possess significant problems. A key role in Chinese unconventional hydrocarbons exploration is played by large Chinese national oil companies. The most productive shales are Lower Paleozoic marine strata in South China, in particular the organic-rich Lower Silurian Longmaxi Formation in the upper Yangtze region, characterized also by wide distribution, large thickness and generally fairly good other properties. Both subsurface geological and surface conditions of major shale gas plays in China are more complex than those in USA. Concerning geology, many shale gas plays in China are faulted and sometimes cross-cut by tectonically active zones – however, in some best productive zones tectonics improves conductivity of reservoirs. Number of Chinese shale plays (particularly those of lacustrine origin, representing a large share of Chinese resources) contain clay rich formations, which impairs effectiveness of hydraulic fracturing. Concerning environmental issues, China decided to go for a practice-oriented approach and no specific regulations for unconventional hydrocarbons currently exist in China, only some – pre-during and – post-operation recommendations are discussed. Interestingly, in many aspects unconventional hydrocarbon exploration in China show more similarities to the situation in Poland than to USA and bilateral cooperation may be fruitful for both sides.
Źródło:
Przegląd Geologiczny; 2015, 63, 10/3; 1206--1214
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jaki wpływ na gospodarkę wodną może mieć wydobycie gazu ze złóż niekonwencjonalnych?
What could be the impact of unconventional gas exploitation on the water management?
Autorzy:
Woźnicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2075070.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
water management
unconventional gas
shale gas
groundwater resources
groundwater contamination
gospodarka wodna
gaz niekonwencjonalny
gaz łupkowy
zasoby wód podziemnych
skażenia wód gruntowych
Opis:
Developing intensively since the beginning of XXI century industry related to unconventional hydrocarbon deposits (shale gas, tight gas, shale oil) requires a comprehensive look on environmental issues arising from the commonly used technology. Because of the hydrauling fracturing process the groundwater management issues are the most important. The analysis requires both aspects of the project water needs, water circulation system in the process, define the sources of water, as well as issues related to the protection of surface and groundwater in the vicinity of the works. In light of the current currently at the European debate about the safe use of unconventional hydrocarbons need for integrated water management is particularly important.
Źródło:
Przegląd Geologiczny; 2013, 61, 6; 348--353
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 30

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