Gonet, Andrzej
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inżynieria środowiska, górnictwo i energetyka
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Item type:Article, Access status: Open Access , Selected aspects of drilling waste management in Poland(2015) Jamrozik, Aleksandra; Ziaja, Jan; Gonet, Andrzej; Fijał, JerzyOne of the main problems related to environmental protection in the search for hydrocarbon deposits are drilling waste. In these article the authors presented their research results on the toxicity of drilling muds and suggested the possibility of their utilization. Research material represents drilling waste collected during prospecting for both conventional and unconventional deposits of oil and gas in the Polish Lowlands, Pomerania, the Carpathians and the Carpathian Foredeep.Item type:Article, Access status: Open Access , Characterization, properties and microstructure of spent drilling mud from the point of view of environmental protection(2015) Fijał, Jerzy; Gonet, Andrzej; Jamrozik, AleksandraThis investigations were carried out on different spent water-based muds, collected in drillings in various parts of Poland. The combined study methods included structural and phase investigations (X-ray diffractometry, infrared FTIR spectroscopy, scanning electron microscopy) and instrumental chemical determinations. The results characterize mineral and phase composition of the samples, their microstructure and chemical composition. The authors focused on the specific nature of polymer-clay complexes, which in drilling mud systems have the form of delaminated or exfoliated organic-clay polymer nanocomposites that control properties of such waste materials. Detailed recognition of properties chemistry, mineral and phase composition, microstructure of spent drilling muds have a fundamental meaning for studies on the management of these materials in the natural environmental.Item type:Article, Access status: Open Access , Geological and drilling aspects of construction and exploitation geothermal systems HDR/EGS(2015) Sapińska-Śliwa, Aneta; Kowalski, Tomasz Wojciech; Knez, Dariusz; Śliwa, Tomasz; Gonet, Andrzej; Bieda, AnnaThe article presents an overview of developing unconventional geothermal systems, such as Hot Dry Rock Systems (HDR), where is used the heat of dry rock and enhanced system with smali water tributary called Enhanced Geothermal Systems (EGS). These systems provide utilization of geothermal energy in reservoirs (i.a. granites) where conventional methods are not possible to use. Operation HDR/EGS involves the use rock heating through warming medium, which flowing between the production and injection boreholes. In most cases medium introduced artifically by hydraulic fracturing. Currently, most of the projects HDR/EGS is in the implementation phase. Based on gathered materials an analysis of the construction and exploitation geothermal systems. Take into account geological and drilling aspects.Item type:Article, Access status: Open Access , Utilisation of drilling waste muds from drilling waste dump(2015) Kotwica, Łukasz; Wons, Wojciech; Malata, Grzegorz; Murzyn, Paweł; Jamrozik, Aleksandra; Gonet, AndrzejDynamically developing drilling industry is connected with some environmental impact. Considerable amounts of contaminated drilling waste is produced, regardless the applied prevention measures. The generated drilling waste is diversified both chemically and physico-mechanical. These properties make utilization or managing of drilling waste difficult. In article presented results laboratory research stabilization of drilling waste mud from Polish commercial drilling waste dump. Samples were taken from an old lot which is not currently under operation and was provided to be subjected to reclamation. Investigated waste drilling mud stored in waste dump contains high amounts of unbound ions, which can be leached out of the sample. It cause the method of utilization to fulfill two goals: first it should allow to solidify the material in order to obtain material easy to transport and process and second the method should allow to decrease the amount of ions which can be leached out of the final material.Item type:Article, Access status: Open Access , Rock mass thermal analysis in underground thermal energy storage (UTES)(2012) Śliwa, Tomasz; Skowroński, Daniel; Sapińska-Śliwa, Aneta; Gonet, AndrzejIn the article, there has been described research conducted in underground thermal energy storage (UTES). There have been also presented temperature measurements led in thermo-piezometric boreholes. On the basis of the measurements, the correctness assessment of borehole heat exchangers (BHE) arrangement has been accomplished.Item type:Article, Access status: Open Access , New borehole heat exchangers in the Geoenergetics Laboratory at the Faculty of Drilling, Oil and Gas, AGH UST in Krakow(Wydawnictwa AGH, 2018) Śliwa, Tomasz; Gonet, Andrzej; Sojczyńska, Anna; Złotkowski, Albert; Kowalski, Tomasz Wojciech; Sapińska-Śliwa, AnetaThe Geoenergetics Laboratory at the Faculty of Drilling, Oil and Gas in Krakow is presented in this paper to mark its 10th anniversary. The origins of the Laboratory, its equipment and the design of borehole heat exchangers belonging to the field research station are also discussed. Recently, the construction of 14 new borehole heat exchangers was designed and the boreholes will be drilled in the area of AGH University. They will perform heating and cooling for the new S1 building of the University. Every borehole heat exchanger will be tested, with the effective thermal conductivity and borehole thermal resistivity calculated after a thermal response test on every borehole. The differ? ence between boreholes should show the difference of borehole thermal resistivity, but the effective thermal conductivity should be the same.Item type:Article, Access status: Open Access , Hydraulic fracturing in systems of geothermal energy utilization (EGS, HDR)(2012) Śliwa, Tomasz; Szura, Marcin; Gonet, Andrzej; Sapińska-Śliwa, AnetaThis work reviews possibility of using the heat from impermeable hot dry rock formations. Significant development in hydraulic fracturing technique in a last few years have a result in making accessible sources of energy from impermeable rocks, including hot dry rocks, which wasn't possible before. This paper presents the idea of utilization the EGS system which is based on forced and closed water circulation in a natural and permeable geological reservoir or in a reservoir, where the fractured zone was created artificially by for example hydraulic fracturing treatment. The article shows also an examples of recent EGS/HDR systems around the world.Item type:Article, Access status: Open Access , Specifying the number of borehole heat exchangers based on thermal response test and geoenergetic analysis(2017) Śliwa, Tomasz; Sapińska-Śliwa, Aneta; Gonet, Andrzej; Jezuit, Zbigniew; Bieda, Anna; Kowalski, Tomasz Wojciech; Ozimek, Jarosław; Złotkowski, AlbertFor the correct design, the number and the location of borehole heat exchangers, it is necessary to know thermal properties of rocks and the exchanger. This applies particularly to larger installations, more than 100 kW. One of the methods of determining these values is Thermal Response Test. This method is based on measurements in the first drilled borehole heat exchanger. Based on results of the TRT geothermal analysis is made. The analysis defines: the number of wells, the arrangement of wells, and the parameters of temperature of heat carrier after long-term use. This analysis based on calculations using specialist software. This paper presents the determination of the number of borehole heat exchangers and working conditions (temperature of the heat carrier) of an underground heat reservoir accessed using borehole heat exchangers for the building of the Primary School in Myszków.Item type:Article, Access status: Open Access , Analysis of waste mud stability(2014) Jamrozik, Aleksandra; Gonet, Andrzej; Fijał, Jerzy; Terpiłowski, Konrad; Czekaj, LucynaDrilling fluids play a number of functions, e.g. they remove cuttings, lubricate the drill bits, maintain stability of the hole and prevent the inflow-outflow of fluids between well and the shales. For this reason, they are made of complex polymeric-mineral microcomposites of differentiated chemical and mineralogical-phase content with varying share of colloidal phase in dispersed solid phase in water, i.e. water-based muds (WBM) or oil environment, i.e oil-based muds (OBM). The major factor providing stability of the presented systems is the high participation of clayey minerals (smectite group), long-chain polymers and chemicals stabilizing dispersions. The results of analyses of concentrated dispersions of waste muds from a few regions in Poland are presented int he paper. These are plastic-viscous dispersions of rheological parameters described most frequently by the Herschel-Bulkley model, the flow of which is connected with deformations of internal structures in the analyzed systems taking place in a function of temperature. There are also presented measurement results of light transmission and backscattering in the analyzed range of temperatures, i.e. 20 to 60°C with the use of Turbiscan Lab., Formulaction. The stability indicator is the turbiscan stability index (TSI).Item type:Article, Access status: Open Access , An application of organic nanosilica to cement slurries based on Portland cement(2015) Jamrozik, Aleksandra; Stryczek, Stanisław; Wiśniowski, Rafał; Gonet, Andrzej; Wójcik, RafałMore and more attention is paid nowadays to the quality and durability of the applied cement slurries. Apart from the appropriate rheological, technological and strength parameters, the slurry should be resistant to the strongly mineralized reservoir waters. Appropriate phase composition of cement slurries, especially high CSH content is responsible for the change of pore structure in the cement slurry; the number of fine gel pores which are not available for the fluid increases and the number of capillary pores responsible for the transport of corrosive factors inside the cement slurry decreases. The use of nanosilica as an additive improving the properties of cement slurries has recently gained popularity. Bearing in mind these properties of nSiO2, there were conducted laboratory experiments on the use of organic nanosilica for cement slurries based on Portland cement CEM I 52.5 R.
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