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Applied Energy | 2003

Estimation of natural-gas consumption in Poland based on the logistic-curve interpretation

Jakub Siemek; Stanislaw Nagy; Stanisław Rychlicki

This paper describes the possible scenario of the development of the gas sector in Poland. An adaptation of the Hubbert model is implemented to the Polish situation based upon the Starzman modification. The model presented describes hypothetical natural-gas demand, based on average trend of the economy development during recent decades; the model considers natural production/demand maxima of energy carriers. The prognosis is loaded with an error resulting from the use of average data related to yearly increases of the national gross product. The adapted model expresses good compatibility with the natural-gas demand for the period 1995-2000. However, the error of prognosis may reach 20%. The simple structure of the model enables the possibility of yearly updating, and eventual correction of the natural-gas demand. In cases of untypical changes of the economy growth rate (long stagnation, extreme long and accelerated development), the prognosis error may increase.


Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles | 2015

Numerical simulations of enhanced gas recovery at the Załezcze gas field in Poland confirm high co 2 storage capacity and mechanical integrity = Des simulations numériques de récupération assistée de gaz sur un gisement de gaz de Załęcze en Pologne confirment les capacités de stockage de CO 2 élevées et l’intégrité mécanique dudit gisement

Łukasz Klimkowski; Stanislaw Nagy; Bartosz Papiernik; Bogdan Orlic; Thomas Kempka

Natural gas from the Załęcze gas field located in the Fore-Sudetic Monocline of the Southern Permian Basin has been produced since November 1973, and continuous gas production led to a decrease in the initial reservoir pressure from 151 bar to about 22 bar until 2010. We investigated a prospective enhanced gas recovery operation at the Załęcze gas field by coupled numerical hydro-mechanical simulations to account for the CO2 storage capacity, trapping efficiency and mechanical integrity of the reservoir, caprock and regional faults. Dynamic flow simulations carried out indicate a CO2 storage capacity of 106.6 Mt with a trapping efficiency of about 43% (45.8 Mt CO2) established after 500 years of simulation. Two independent strategies on the assessment of mechanical integrity were followed by two different modeling groups resulting in the implementation of fieldto regional-scale hydro-mechanical simulation models. The simulation results based on application of different constitutive laws for the lithological units show deviations of 31% to 93% for the calculated maximum vertical displacements at the reservoir top. Nevertheless, results of both simulation strategies indicate that fault reactivation generating potential leakage pathways from the reservoir to shallower units is very unlikely due to the low fault slip tendency (close to zero) in the Zechstein caprocks. Consequently, our simulation results also emphasise that the supraand subsaliniferous fault systems at the Załęcze gas field are independent and very likely not hydraulically connected. Based on our simulation results derived from two independent modeling strategies with similar simulation results on fault and caprock integrity, we conclude that the investigated enhanced gas recovery scheme is feasible, with a negligibly low risk of relevant fault reactivation or formation fluid leakage through the Zechstein caprocks. Résumé— Des simulations numériques de récupération assistée de gaz sur un gisement de gaz de Załęcze en Pologne confirment les capacités de stockage de CO2 élevées et l’intégrité mécanique dudit gisement — Le gaz naturel du gisement de Załęcze, situé dans la structure monoclinale de la région des Sudètes au niveau du Bassin Permien sud, est produit depuis novembre 1973, moyennant quoi la production de gaz continue a donné lieu à une diminution de la pression initiale du réservoir de 151 bar à environ 22 bar en 2010. Nous avons effectué une étude prospective mettant en jeu une opération de récupération de gaz améliorée sur le gisement de gaz de Załęcze par des simulations Oil & Gas Science and Technology – Rev. IFP Energies nouvelles, Vol. 70 (2015), No. 4, pp. 655-680 Ł. Klimkowski et al., published by IFP Energies nouvelles, 2015 DOI: 10.2516/ogst/2015012 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. hydromécaniques numériques couplées et prenant en compte les capacités de stockage de CO2, l’efficacité de piégeage et l’intégrité mécanique du gisement, des roches couverture et des failles régionales. Les simulations hydrodynamiques réalisées indiquent une capacité de stockage de CO2 de 106,6 Mt avec une efficacité de piégeage d’environ 43 % (45,8 Mt de CO2) établie après 500 ans de simulation. Deux stratégies indépendantes pour l’évaluation de l’intégrité mécanique ont été suivies par deux équipes différentes donnant lieu à la mise en œuvre de modèles de simulation hydromécaniques de l’échelle du gisement jusqu’à l’échelle régionale. Les résultats de simulation basés sur l’application de différentes lois constitutives pour les unités lithologiques présentent des écarts de 31 % à 93 % pour les déplacements verticaux maximum calculés au niveau supérieur du réservoir. Toutefois, les deux stratégies de simulation montrent qu’une réactivation des failles susceptible de générer des voies de fuite potentielles du réservoir vers des unités moins profondes, est improbable du fait de la tendance à un faible glissement de faille dans les roches couvertures de Zechstein. Nos résultats de simulation soulignent également que les systèmes de failles supraet sous-salinifères du gisement gazier de Załęcze sont indépendants et vraisemblablement pas reliés hydrauliquement. Sur la base des simulations associées aux deux stratégies de modélisation indépendantes, et qui présentent des résultats similaires en matière d’intégrité des roches couverture et des failles, nous concluons que le schéma de récupération assistée de gaz étudié est réalisable, avec un risque négligeable de réactivation de la faille ou de fuite du fluide de formation à travers les roches couverture du Zechstein.


Ecological Chemistry and Engineering S-chemia I Inzynieria Ekologiczna S | 2016

Evaluation of Environmental Hazard During Shale Gas Exploration Process in Poland in the Years 2012-2014

Monika Konieczyńska; Jan Macuda; Stanislaw Nagy; Jakub Siemek

Abstract This paper is a summary of results of environmental analysis conducted by PGI-NRI, AGH-UST within the monitoring of natural gas prospecting in unconventional deposits. All elements of natural environment were analyzed and on this basis the qualitative and quantitative impact of drilling and hydraulic fracturing of shales could be assessed. Special attention was drawn to the analysis of the physicochemical condition of post-reaction fluids, soil gas in the well pad area and drilling fluids. The results of analysis reveal that prospecting works do not create a significant environmental hazard. Some indices connected, e.g. with the noise climate lightly exceeded permissible values. Nonetheless, if extensive prospecting and production of shale gas are involved, the environmental studies need to be broadened to supplement this report.


Archives of Mining Sciences | 2011

Shale gas in Europe: the state of the technology - challenges and opportunities

Stanislaw Nagy; Jakub Siemek


Archives of Mining Sciences | 2012

Energy Carriers Use in the World: Natural Gas – Conventional and Unconventional Gas Resources / Wykorzystanie Nośników Energii w Świecie: Zasoby Gazu Ziemnego w Złożach Konwencjonalnych i Niekonwencjonalnych

Jakub Siemek; Stanislaw Nagy


Problemy Ekorozwoju : studia filozoficzno-sozologiczne | 2013

Challenges for Sustainable Development: The Case of Shale Gas Exploitation in Poland

Jakub Siemek; Stanislaw Nagy; Paweł Siemek


International Journal of Rock Mechanics and Mining Sciences | 2015

The influence of thermodynamic effects on gas storage cavern convergence

Karolina Serbin; Jarosław Ślizowski; Kazimierz Urbańczyk; Stanislaw Nagy


Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles | 2015

Risk Assessment-Led Characterisation of the SiteChar UK North Sea Site for the Geological Storage of CO2

Maxine Akhurst; S. Hannis; Martyn Quinn; Ji-Quan Shi; Marielle Koenen; Florence Delprat-Jannaud; Jean-Claude Lecomte; Daniel Bossie-Codreanu; Stanislaw Nagy; Łukas Klimkowski; Davide Gei; Maarten Pluymaekers; David Long


Archives of Mining Sciences | 2007

Analysis of Use of Low Quality Natural Gas to Improve Oil Recovery Factor

Stanislaw Nagy; Andrzej Olajossy


Archives of Mining Sciences | 2014

Confined Phase Envelope of Gas-Condensate Systems in Shale Rocks

Stanislaw Nagy; Jakub Siemek

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Jakub Siemek

AGH University of Science and Technology

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Stanisław Rychlicki

AGH University of Science and Technology

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Andrzej Olajossy

AGH University of Science and Technology

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Jarosław Ślizowski

AGH University of Science and Technology

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Jakub Siemek

AGH University of Science and Technology

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Krzysztof Polański

AGH University of Science and Technology

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Łukasz Klimkowski

AGH University of Science and Technology

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Bartosz Papiernik

AGH University of Science and Technology

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Jan Macuda

AGH University of Science and Technology

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Karolina Serbin

AGH University of Science and Technology

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