Geological preconditions for identifying of perspective aquifer structures for natural gas and CO2 storage in north-eastern Bulgaria

• Autorzy: Balinov V. , Doncheva M. , Zaneva-Dobranova E.

Warianty tytułu

PL

Geologiczne uwarunkowania identyfikacji perspektywicznych struktur wodonośnych dla składowania gazu zmiennego i CO2 w n-e Bułgarii

• Języki publikacji: PL

Abstrakty

PL

Metodykę oparto na ocenie kryteriów litologicznych, strukturalno-tektonicznych, sejsmotektonicznych, hydrogeologiczncyh, petrofizycznych, termicznych i ciśnieniowych. Zastosowano ją dla identyfikacji struktur wodonośnych perspektywicznych z punktu widzenia składowania gazu ziemnego i C02, na terenie północno-wschodniej Bułgarii. Zidentyfikowano i oceniono warunki geologiczne składowania dla poziomów wodonośnych, reprezentujących struktury od dewonu po górny ocean, leżących w zasięgu Monokliny Warny, obniżenia Dolnej Kamczy, wyniesienia północnobułgarskiego i obniżenia Aleksandrii. Głębokość występowania stwierdzonych poziomów waha się od 500 do 1700 m.

EN

The methodical approaches for identifying of perspective aquifer structures for natural gas and C02 storage indicated by the authors in previous works are applied for a part of North-Eastern Bulgaria. They are based on the main requirements for the suitability of the geological sites and are connected to preconditions ensuring lithologic, structural-tectonic, seismotectonic, hydrogeological; petrophysical, termobaric and other requirements. The regional reservoir systems defined for Northern Bulgaria are examined in the Phanerozoic section of the studied territory. They are characterized by specific lithological features and development and are of great interest for the natural gas and C02 storage. The structural-tectonic conditions in the Moesian Platform (The Varna Monocline, The North Bulgarian Uplift and The Alexandria Depression) and the Dolna Kamchia Depression determine the presence of different geological structures. Different types of natural traps are bounded to them. Some of these traps correspond to the requirements for natural gas and C02 storage. The seismic and neotectonic situation is variable (basically low to middle and in rare cases higher), which determines different earthquake activity and behavior of the fault breaks in the neotectonic development of the territory. The natural reservoir connected to the Upper Jurassic - Lower Cretaceous permeable complex, in spite of its high capacity and filtration potential, contains fresh water with active hydrodynamic regime and this fact makes it unsuitable for natural gas and C02 storage. The defined reservoir systems and sealing formations are characterized by too different structure and petrophysical properties and this influences their suitability of the natural traps natural gas and C02 storage. Perspective structures for natural gas and C02 storage, connected to Devonian, Triassic, Middle Jurassic and Paleogene reservoir systems, are registered on the basis of the geological conditions' analysis and the criteria parameters in the Phanerozoic section of the studied territory.

Słowa kluczowe

PL

perspektywiczne struktury wodonośne; gaz ziemny

EN

perspective aquifer structures; natural gas

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Górnictwo / Politechnika Śląska
• Rocznik: 2009
• Tom: z. 287
• Strony: 7--18
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Balinov V.

autor

Doncheva M.

autor

Zaneva-Dobranova E.

• University of Mining and Geology "St. Ivan Rilski", Sofia tel. [phone],

Bibliografia

• 1. Balinov V.: Filtration and capacity properties of the natural permeable environments and regularities in their variation and distribution in the Meso-Neozoic sediments in the Northern Bulgaria. Author's summary of dissertation UMG, Sofia 1975.
• 2. Balinov V., Veneva R., Deshev E.: Evaluating scheme and lithologic-physical characteristics of the porous reservoirs in Northern Bulgaria. - Oil and coal geology, 6, 1977, p. 41-52.
• 3. Balinov V., Doncheva M., Zaneva-Dobranova E.: Geological Preconditions for Natural Gas Storage in Aquifer Structures in Paleogene in the Varna Monocline and the Dolna Kamchia Depression (Principles and Methodic Approaches). - Annual MGU, p. 1, v. 50, 2007, p. 9-14.
• 4. Balinov V., Zaneva-Dobranova E., Doncheva M.: Geological Preconditions, Principles and Criteria to the Identification of Prospective Geological Structures of Carbon Dioxide (C02) in Bulgaria. - Annual MGU, p. 1, v. 51, 2008, p. 10-15.
• 5. Balinov V., Doncheva M. Zaneva-Dobranova E.: Methodical Approaches for Identifying of Perspective Aquifers for Carbon Dioxide Storage. Scientific-technocal conference "Oil and Gas Prospectivity of the Balkan-Black Sea Region" with international participation. Varna 2008, p. 172-180.
• 6. Bokov P., Chemberski H. (ed.): Geological preconditions for oil and gas perspectives in North-Eastern Bulgaria. Sofia, Tehnika, 1987, p. 332.
• 7. Deshev E.: Reservoirs and fluid-retention rocks in the sediments of the Paleogene from the North-Eastern Bulgaria. Dissertation, Sofia, UMG, 1976.
• 8. Yordanov Y., Balinov V., Deshev E., Sapundjieva Iv.: Methods of the quantitative evaluation of the sealing properties of the hard-permeable rocks. - Oil and coal geology, 21,1985, p. 34-41.
• 9. Kalinko M. (ed.): Geology and oil and gas perspective of Northern Bulgaria, M, Nedra, 1976, p. 242.
• 10. Kostadinov Y., Shanov S., Karagjuleva Y.: Seismotectonic prognosticating and regionalizing of North-East Bulgaria. - Geologica Balcanica, 22,1,1992, p. 83-104.
• 11. Chadwick A., Arts R., Bernstone C, May F., Thibean S., Zweigel P. (ed.): Best practice for the storage of C02 in saline aquifers. Observations and guidelines from the SACS and C02 STORE projects, 2007.
• 12. Metz B., Davidson O., Coninek H., Loos M., Meyer L. (ed.): Carbon Dioxide Capture and Storage. Cambridge University Press, New York 2005.
• 13. Shanov S.: Tectonic stress fields in Northeast Bulgaria. - Geologica Balcanica, 20, 4, 1990, p. 37-47.