Abstract
Underground gas storage (UGS) has become an essential part of gas transmission systems in all developed industrial countries. This is because transit pipelines transporting natural gas to consumers are limited by the maximum flow capacity and are not able to cover the increased seasonal or peak demand. UGS facilities then guarantee the security and reliability of gas supplies, especially in the event of a transit transmission failure. The actual safety of UGS operation is then given by the reliability of storage structures, technical and technological equipment, i.e. the so-called primary and secondary tightness. The article evaluates the primary conditions of tightness on selected UGS operated by MND Gas Storage a. s. Hodonin and MND Gas Storage Germany GmbH, Germany. These are the Uhřice, Uhřice-South (Czech Republic) and Hahnlein and Stockstadt (Germany) reservoirs. Keywords: Geology; Tectonics; Tightness; Underground gas storage. DOI 10.35180/gse-2020-0038
Highlights
Since 2016 we have been doing laboratory work in petrophysical assessment of rock samples and investigating the possibilities of increasing the total storage capacity of natural gas in underground gas storage facilities
The following Underground gas storage (UGS) are operated on the territory of the Czech Republic: UGS Třanovice, UGS Štramberk, UGS Lobodice, UGS Tvrdonice, UGS Dolní Dunajovice and UGS Háje (Innogy s.r.o.), UGS Uhřice and Uhřice-South, UGS Dolní Bojanovice and UGS Dambořice [15, 16]
UGS Uhřice is located in the land register of the village Uhřice, district Hodonín, South Moravian Region, on the north-eastern slope of the Nesvačil ditch, on a hanging wall of a significant fault in the NW-SE direction, separating the elevation area of the Ždánický Forest from the ditch itself, modelled in the Cretaceous to Paleocene period [17]
Summary
Since 2016 we have been doing laboratory work in petrophysical assessment of rock samples and investigating the possibilities of increasing the total storage capacity of natural gas in underground gas storage facilities. "It will definitely significantly reduce efforts to switch to cleaner energy," said Fatih Birol, the head of the International Energy Agency, about the historical drop in prices. He adds that "cheaper energy always leads to its use in a less cost-effective way" [1]. Even before this shock, on Wednesday 4 March 2020, the European Commission presented a draft of European climate law, the so-called Green Deal, through which they want to achieve zero greenhouse gas emissions by 2050, which will require huge changes in the way energy is used [2].
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