Characterization of petrophysical parameters of the Lower Triassic deposits in a prospective location for Enhanced Geothermal System (central Poland)

Abstract

In the years 2010-2013, anal y sis of rocks that build the sed i men tary cov ers in Po land was car ried out from the point of view of uti li za tion of en ergy ac cu mu lated in Hot Dry Rock -used in En hanced Geo ther mal Sys tems (EGS). As a re sult of a number of an a lyt i cal stud ies, the area sit u ated in the cen tral part of Po land was se lected as one of pro spec tive ar eas for lo ca tion of EGS in sed i men tary rocks. This area en com passes a ma jor part of the Mogilno-£ódŸ Trough, a part of the Kujawy Swell and a small frag ment of the Fore-Sudetic Monocline. The most fa vour able con di tions for de vel op ment of EGS oc cur in the Lower Tri as sic de pos its in the Krooeniewice-Kutno vi cin ity, where they are bur ied to depths greater than 5000 m b.s.l., their thick nesses ex ceeds 1500 m, po ros ity is about 3% and per me abil ity is about 0.02-0.1 mD. In the study area, ther mal char acter iza tion of the for ma tion was car ried out for lo ca tion of the EGS in sed i men tary rocks. The tem per a ture at the top of the Lower Tri as sic res er voir is mod elled in the range of 165-175°C. Char ac ter iza tion of petrophysical pa ram e ters was the ba sis for fur ther mod el ling of EGS uti li za tion in this area.

Modelling geothermal conditions in part of the Szczecin Trough – the Chociwel area

“…In many parts of the world both basic research, in order to understand geological structures better (Chowaniec, 2009;Zuber & Chowaniec, 2009;Sowiżdżał, 2010Sowiżdżał, , 2012Stankowski, 2012;Özgür & Çalışkan, 2013;Sowiżdżał et al, 2013;Pussak et al, 2014), but also works aimed at optimisation of geothermal systems in terms of their operation have been carried out (Tomaszewska & Pająk, 2012;Żbikows-ka et al, 2013;Demir et al, 2014;Baba et al, 2015). Fundamental issues are, for instance, geothermal potential estimates assisted by numerical modelling (Szczepański & Szklarczyk, 2006) and analysis of geochemical composition of groundwaters in the context of scaling and corrosion prediction in geothermal systems.…”

“…One of the most promising geothermal reservoirs in terms of using geothermal waters for energy purposes is the Lower Jurassic unit within the Szczecin Trough (Górecki et al, 2006Sowiżdżał, 2009Sowiżdżał, , 2010Górecki et al, 2010;Tarkowski & Wdowin, 2011;Sowiżdżał et al, 2013). Due to salt tectonics, manifested among others by local disappearance of the Kamień Pomorski Beds and the partial removal of the Gryfice Beds, the thickness of the Lower Jurassic strata within the Szczecin Trough is highly variable.…”

Environmental aspects of the geothermal energy utilisation in Poland

“…Geothermal energy resources in Poland are related to the underground waters of different stratigraphic layers occurring at different depths, within geological units in the Polish Lowland, the Sudetes and the Carpathians. The information about their size is widely known thorough results of numerous research projects [12][13][14][15][16][17][18][19]. The recognition of geological structures for direct or indirect applications of the geothermal energy is an important direction of carried geological research.…”

Structural and Parametric Models of the Załęcze and Żuchlów Gas Field Region, Fore-Sudetic Monocline, Poland – An Example of a General Static Modeling Workflow in Mature Petroleum Areas for CCS, EGR or EOR Purposes

“…Its development resulted from longterm thermal subsidence, which started in the Permian and lasted until the Late Cretaceous. It comprised three major pulses of extension-related accelerated tectonic subsidence during Late Permian to Early Triassic times, in the Oxfordian to Kimmeridgian, and in the Early Cenomanian (Dadlez et al, 1995;Stephenson et al, 2003;Krzywiec, 2006;Sowiżdżał et al, 2013). Partial inversion, which took place in the FSM area during the Late Cretaceous under a NE-SW directed transpressional regime (Deczkowski and Gajewska, 1980;Lamarche et al, 2002;Jarosiński et al, 2009) resulted in complete erosion of Cretaceous, partial to complete erosion of Upper, Middle, Lower Jurassic and partial erosion of Triassic strata (Fig.…”