State-of-the-art Technologies of Water Well Drilling and Their Application in the Czech Republic

Tématem diplomové práce je moderní technologie vrtání studní a jejich uplatnění v podmínkách České republiky. Diplomová práce je rozdělena na část teoretickou a část praktickou. Teoretická část spočívá v definování zdrojů pitné vody a jejich zřizování, kterými jsou vodní nádrže, přehrady a vrtané studny. Důraz je zde kladen na spotřebu vody, která neustále roste. V praktické části popisuji stávající postupy, používanou vrtnou techniku, některé chyby při vrtání studní a konečně návrh řešení, jak tyto nedostatky odstranit. Jde především o relativně pomalé vrtání, malé průměry, hloubky a způsob vystrojení studny. Stěžejním tématem je moderní vrtná technika a technologie, která umožňuje vrtání a současné pažení. V práci jsou popsány metody Sonic drilling, Reverse circulation drilling a Casing while Drilling, které lze využít pro vrtání studní dosahující lepších parametrů.The subject of the diploma thesis is a State-of-the-art Technologies of Water Well Drilling and Their Application in the Czech Republic. The thesis is divided into theoretical part and practical part. The theoretical part consists in defining the sources of drinking water and their establishment, which are water reservoirs, dams and drilled water wells. The emphasis here is on water consumption, which is constantly increasing. In the practical part I describe the existing procedures, the drilling technology used, some mistakes in drilling water wells and finally a proposal for solutions to eliminate these shortcomings. The main issues are the relatively slow drilling, small diameters, depths and the way the wells are drilled. The main topic is modern drilling technique and technology that allows Casing while Drilling. The thesis describes the methods of Sonic drilling, Reverse circulation drilling and Casing while Drilling, which can be used for drilling water wells achieving better parameters.541 - Katedra geologického inženýrstvívýborn

Study of Mechanical-Elastic Parameters of Reservoir Rocks with Respect to the Purpose of Permanent CO2 Storage

CO2 emissions are considered to be partly responsible for climate change. One of the available methods to reduce CO2 emissions is its storage in favorable rock structures, such as mined hydrocarbon deposits. Natural hermeticity is guaranteed with this reservoir structure. An increase in pressure conditions in the deposit, induced by long-term CO2 storage, can lead to the splitting of exposed rocks. It is therefore necessary to carry out geomechanical tests on available drill core samples. The presented article presents the results of laboratory research aimed at determining the mechanical-elastic parameters of reservoir rocks of a hydrocarbon deposit using non-destructive testing. The advantage of this method is the possibility of testing the given samples before and after exposure to CO2. The laboratory research carried out revealed significant differences in the measured mechanical-elastic parameters of the tested samples. Taking into account that samples of the consistent reservoir structure of the same deposit were tested, the necessity of detailed testing of geomechanical parameters arises. It was interpreted that the differences in mechanical-elastic parameters found by the research may be caused by differences in the lithological composition (for these purposes, XRD powder diffraction was implemented), or by mechanical disturbance given, for example, by fracture predisposed by structural-tectonic processes. Different humidity can also have an effect, or degree of saturation of the tested samples

Analysis of the Suitability of the Use of Hydrocarbon Deposits for CO2 and Hydrogen Storage in the Northern Moravia Region

Geological storage of CO2 is the final link in the technological chain CCS (Carbon Capture and Storage), one of the possible technologies for reducing greenhouse gas emissions arising from the burning of fossil fuels. CCS is one of the key energy technologies of the Strategic Energy Technology Plan of the European Union (SET-plan). In the Czech Republic, activities in the field of CCS have focused on research and development projects, including the mapping of geological structures suitable for potential CO2 storage and the transposition of relevant European legislation – see Act No. 85/2012 Coll., on the Storage of Carbon Dioxide into Natural Rock Structures. One of the options for geological storage of CO2 is the use of mined or mined hydrocarbon deposits. However, these structures could also be operated as underground CO2 reservoirs, enabling its reuse. Yet some of them could also be used for hydrogen storage if these locations are appropriately incorporated into the construction of a new hydrogen infrastructure. The report presents part of the research results related to hydrocarbon deposits in the North Moravia region

Design of a Geotourist Excursion after Selected Outcrops and Quarries of Moravian-Silesian Region.

Cílem bakalářské práce je návrh geoturistické exkurze po vybraných odkryvech a lomech Moravskoslezského kraje. Jedná se o návrh geoturistické exkurze do 17 vybraných lokalit v Moravskoslezském kraji. Byly zpracovány následující lokality: 1 – Otická sopka; 2 – pískovna Závada; 3 – Kobeřice; 4 – Kravaře; 5 – odkryv v Darkovičkách; 6 – lom Trhůvka; 7 – přírodní rezervace Štěpán; 8 – odkryv v Hošťálkovicích; 9 – odkryv v Olbramicích; 10 – lom ve Staré Vsi u Bílovce; 11 – odkryv v Košatce; 12 – výchoz říčních teras Odry; 13 – Landek; 14 – halda Ema; 15 – Žermanický lom; 16 – odkryv ve Fryčovicích; 17 – lom v Mistřovicích. Tato práce by měla být příspěvkem pro zlepšení možnosti turistiky v kraji v souvislosti se zajímavými geologickými poměry tohoto regionu.The aim of the bachelor thesis is a design of a geotourist excursion to selected outcrops and quarries of the Moravian–Silesian region. It is a proposal of a geotourist excursion to 17 selected localities in the Moravian-Silesian Region. The following locations were processed: 1 – volcano in Otice; 2 – sand quarry Závada; 3 – Kobeřice; 4 – Kravaře; 5 – the outcrop in Darkovičky; 6 – the quarry Trhůvka; 7 – Štěpán nature reserve; 8 – the outcrop in Hošťálkovice; 9 – the outcrop in Olbramice; 10 – the quarry in Stará Ves near Bílovec; 11 – the outcrop in Košatka; 12 – Odra river terraces outcrop; 13 - Landek; 14 – the Ema slag heap; 15 – the quarry in Žermanice; 16 – the outcrop in Fryčovice; 17 – the quarry in Mistřovice. This work should contribute to the improvement of tourism in the region in connection with interesting geological conditions of the region.541 - Katedra geologického inženýrstvívýborn