Претрага
118 items
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Analiza sistema odvodnjavanja površinskog kopa Drmno od podzemnih voda sa severnim savršenim ekranom
Izrada nesavršenog ekrana do drugog sloja uglja na površinskom kopu Drmno, pored zadržavanja postojećih standardnih metoda odvodnjavanja od podzemnih voda linijama bunara, predviđena je poslednje decenije u celokupnoj rudarskoj projektnoj dokumentaciji. Iz objektivnih i subjektivnih razloga njegova realizacija nije ostvarena do danas. U međuvremenu je, uz dodatna geološka istraživanja i promenu dinamike i parametara sistema površinske eksploatacije, došlo do određenih značajnih prostornih promena geoloških i rudarskih uslova u eksploatacionom polju. Ovo je omogućilo preliminarno inoviranje pristupa procesu i konceptu ...Tomislav Šubaranović, Dušan Polomčić, Vladimir Pavlović. "Analiza sistema odvodnjavanja površinskog kopa Drmno od podzemnih voda sa severnim savršenim ekranom" in Zbornik apstrakata sa 9. Međunarodne konferencije Ugalj, Zlatibor, 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
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Оцена перспективности изворишта "Вић баре" за водоснабдевање Обреновца
... 30 vertical drilled wells and the two collector wells (with horizontal drains), which tapping in average 260 I/s of groundwater. The main problems to expanding existing source are the following: higher concentration of Fe and Mn ions in alluvial aquifer waters which stimulate wells’ ageing, reduced s ...
... (Q), 2. sand and alevrite, 3. loess clay and fine sand, 4. clay (Pl), 5. geological boundary, 6. intergranular porosity, 7. impermeable sediments, 8. wells, 9. piezometers, 10. drainage system, 11.water treatment WF “Zabrezje”, 12. profile line Osnovni vid prihranjivanja izdani predstavlja infiltracija ...Бојан Хајдин, Душан Поломчић, Зоран Стевановић, Драгољуб Бајић, Катарина Хајдин. "Оцена перспективности изворишта "Вић баре" за водоснабдевање Обреновца" in XIV Српски симпозијум о хидрогеологији са међународним учешћем, Рударско-геолошки факултет, Београд (2012)
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Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment
Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)... water supply systems are comprised of relatively deep (70-250 m) drilled wells which tap Pliocene-Pleistocene sediments, while no elevat- ed arsenic concentrations were recorded in the “first” (shal- low) aquifer tapped by village wells (up to 10 m) [9], such that the origin of arsenic in groundwater within ...
... of 470 wells were assessed; groundwaters for supply are HCO3-Na to Ca-Mg type (Fig. 2). Arsenic Occurrence in Groundwater of Banat District In Banat, out of the 244 analyzed samples of ground- water used for drinking water supply, arsenic concentra- tions were found to exceed MPC in 69 wells, meaning ...
... location of the test area. Experimental Procedures Sampling, Field Measurements and Laboratory Analyses Groundwater samples from water supply wells within the territory of Vojvodina were used to perform arsenic con- centration analyses as part of studies conducted by the University of Belgrade, ...Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić. "Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment" in Polish Journal of Environmental Studies (2012)
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New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"
Saša Ivanišević, Dejan Radivojević (2018)геофизички каротаж, депозиционе средине, лежишта угљоводоника, миоцен, пост‐ рифтнo, секвенциона стратиграфија... m nine wells: KM‐117, 17, 1, 2, 3, 4, 5, 6 and 7 (Figure 1а and 1b). The principles of sequence stratigraphy have been applied in the analysis of geophy‐ sical and geological data, while the correlation of hydrocarbon reservoirs is presented through the integration of nine wells and on ...
... e seismic profile. The seismic profile is west‐east oriented, crossing the “Kikinda‐Mokrin” high and connecting the above wells. Reconstruction of depositional environments and correlation of lithostratigraphic units (Figure 1a and 1b) have been executed based on the analysis of the shape an ...
... de‐ pression, west of the Szeged fault (KM‐117, 17, 1 and 2), while east of the Szeged fault, there are non‐ commercial quantities of gas in the wells KM‐3, 4 and 5 (Figure 1a and 1b). The data obtained in the process of well testing and during reservoir engineering indicate that the ...Saša Ivanišević, Dejan Radivojević. "New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment
Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)... water supply systems are comprised of relatively deep (70-250 m) drilled wells which tap Pliocene-Pleistocene sediments, while no elevat- ed arsenic concentrations were recorded in the “first” (shal- low) aquifer tapped by village wells (up to 10 m) [9], such that the origin of arsenic in groundwater within ...
... of 470 wells were assessed; groundwaters for supply are HCO3-Na to Ca-Mg type (Fig. 2). Arsenic Occurrence in Groundwater of Banat District In Banat, out of the 244 analyzed samples of ground- water used for drinking water supply, arsenic concentra- tions were found to exceed MPC in 69 wells, meaning ...
... u th o r C o p y • Experimental Procedures Sampling, Field Measurements and Laboratory Analyses Groundwater samples from water supply wells within the territory of Vojvodina were used to perform arsenic con- centration analyses as part of studies conducted by the University of Belgrade, ...Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić. "Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment" in Polish Journal of Enivronmental Studies 21 no. 6, Olsztyn, Poland : Polish Journal of Enivronmental Studies (2012): 1783-1790
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... significantly improve diagnostics and reduce downtime in wells.In onshore oil fields, most wells use rod pump systems for oil production, with a small number of operators managing a large number of wells. Consequently, the oil and gas industry is investing in well automation to enable rapid and ...
... Acquisition) systems is required. Due to investments in field data digitalization, optical networks already connect wells to operational facilities.For monitoring rod pump wells, key variables tracked include strokes per minute, daily pump run time, cycles per day, flow rate, tubing head pressure ...
... extraction of oil from great depths of oil fields. These pumps are designed to withstand extreme conditions and high pressures that prevail in deep wells. Their ability to maintain a continuous flow of oil from depth to the surface directly impacts production efficiency and costs. Therefore, continuous ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin
Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović. "Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin" in Carpathian Journal of Earth and Environmental Sciences (2014)
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Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field
Most of the wells in the oilfield Turija are operating with sucker rod pumps, where casing pressure at around 15 bar, and with marginal production rates. The high value of casing pressure indicates high pressure on the face of the formation and depends directly on well productivity. In addition, with increasing value of the casing pressure gas column in the annulus is moving the dynamic fluid level near pump intake and more gas is entering the pump, it results ...beam gas compressor, BGC, increase productivity, sucker rod pump, SRP, mature field, artificial lift, production optimisationBojan Martinović, Dušan Danilović, Branko Grubač, Robert Fadiga. "Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field" in International Journal of Oil Gas and Coal Technology (2022)
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Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
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Anthropogenic impact on the groundwater regime: Case study of the Velika Morava alluvium
Jovana Mladenović, Vesna Ristić Vakanjac, Milan Kresojević, Boris Vakanjac, Jugoslav Nikolić, Dušan Polomčić, Dragoljub Bajić (2023)The Velika Morava River originates at the junction of the Južna Morava and Zapadna Morava at the town of Stalać in Serbia. It is 185 km long and empties into the Danube. The Velika Morava River Basin occupies a land area of 37 444 km2. The river flows through central Serbia, which features the most fertile land and the highest population density in the country. Public water supply in this region of Serbia relies on groundwater formed in alluvial ...Jovana Mladenović, Vesna Ristić Vakanjac, Milan Kresojević, Boris Vakanjac, Jugoslav Nikolić, Dušan Polomčić, Dragoljub Bajić. "Anthropogenic impact on the groundwater regime: Case study of the Velika Morava alluvium" in National Conference with International Participation “GEOSCIENCES 2023”, Review of the Bulgarian Geological Society, Sofia : Bulgarian Geological Society (2023)
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Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan
An accurate fracture gradient value is one of the most important issues in oil and gas well design and drilling. The value of a fracture gradient is a critical parameter for determining the drilling mud weight and selecting the proper depths for setting the casing in the planning process of drilling operations. This paper proposed the new curve model of fracture gradient for the south-central Kazakhstan (central Asia) region based on the analysis of leak-off test and format integrity ...Branimir Stanisavljevic, Vesna Karovic Maricic, Irena Isakov. "Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan" in International Journal of Oil, Gas and Coal Technology, Inderscience Publishers (2022). https://doi.org/10.1504/IJOGCT.2023.128042
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Rezultati geoloških istraživanja lignita Kostolačko-kovinskog ugljonosnog basena – geološke i morfostrukturne karakteristike
Bogoljub Vučković, Biljana Radovanović, Vesna Matić, Lidija Glamočanin, Bogdan Radić, Ksenija Eraković, Dragana Životić (2022)Geološka istraživanja Kostolačkog basena i ležišta Kovin vrše se više od 80 godina, dok eksploatacija traje više od 100 godina. Tokom dugog perioda rudarskih aktivnosti na površini od oko 320 km2, izbušeno je preko 3.200 bušotina i više od 265.000 m jezgra. Nova saznanja o geološkim karakteristikama, morfologiji i kvalitetu ugljenih slojeva nameću neophodnost reinterpretacije i izrade jedinstvenog 3D modela Kostolačko-kovinskog basena. Primenom savremenih softverskih paketa olakšano je povezivanje ugljenih slojeva sa posebnim osvrtom na morfologiju i kvalitet slojeva i ...Bogoljub Vučković, Biljana Radovanović, Vesna Matić, Lidija Glamočanin, Bogdan Radić, Ksenija Eraković, Dragana Životić. "Rezultati geoloških istraživanja lignita Kostolačko-kovinskog ugljonosnog basena – geološke i morfostrukturne karakteristike" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca
Na izvorištu „Vić bare“ formiranom u aluvijonu Save za vodosnabdevanje Obrenovca u poslednje dve decenije izvedeno je više detaljnih hidrogeoloških istraživanja u cilju utvrđivanja rezervi podzemnih voda i izdvajanja zona sanintarne zaštite. Monitoring podzemnih voda u celoj zoni izvorišta, za potrebe izrade hidrodinamičkog modela, omogućio je i hidrauličku analizu odnosa površinskih voda reke Save i podzemnih voda na izvorištu sa kojeg se trenutno zahvata do 310 l/s vode. U radu su prikazani rezultati korelacione analize, odnosno ispitivanja na ...Dragoljub Bajić, Bojan Hajdin, Dušan Polomčić, Vesna Ristić Vakanjac. "Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca" in XVI Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 28.09.-02.10.2022., Beograd : Rudarsko-geološki fakultet (2022)
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Metodologija određivanja vremena i putanje zagađivača na primeru zaštite izvorišta podzemnih voda
Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Jelena Ratković, Marina Čokorilo Ilić (2018)Analiza vremena putovanja potencijalnog zagađivača do bunara izvorišta podzemnih voda predstavlja veoma bitan segment kod upravljanja i zaštite podzemnih voda. Ova metodologija se zasniva na simulaciji kretanja nereagujuće čestice sa podzemnim vodama i poroznom sredinom (“idealna” čestica). Rezultati hidrodinamičkog modela, kojim se vrši simulacija režima podzemnih voda, predstavljaju osnovu za model praćenja “idealne” čestice. Postoje različiti softveri koji se koriste u hidrogeološkoj praksi za analizu problema zagađivača. U ovom radu korišćen je numerički kod Modpath, dok je za simulaciju ...upravljnje podzemnim vodama, zaštita podzemnih voda, hidrodinamički model, metoda praćenja „idealne“ čestice, modflow, modpath.Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Jelena Ratković, Marina Čokorilo Ilić. "Metodologija određivanja vremena i putanje zagađivača na primeru zaštite izvorišta podzemnih voda" in Zbornik radova nacionalne konferencije sa međunarodnim učešćem ekoremedijacija i ekonomska valorizacija vodnih resursa-modeli i primena, Fakultet za primenjenu ekologiju Futura, Univerzitet Singidunum, Beograd (2018)
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Hidrodinamički proračun zaštite površinskog kopa Drmno od podzemnih voda u periodu 2018-2022. godina
Površinski kop lignita Drmno nalazi se u blizini velikih reka (Dunav i Mlava), zbog čega eksploatacija otkrivke i lignita u velikoj meri zavisi od sistema zaštite od podzemnih voda. Ukoliko je sistem zaštite od podzemnih voda dobro isplaniran, a njegov kapacitet dobro proračunat, onda će se eksploatacija obavljati u suvoj sredini, što podrazumeva sigurnu proizvodnju otkrivke i lignita. U današnje vreme uz primenu adekvatnih softvera olakšano je kvalitetno planiranje i proračunavanje sistema za zaštitu površinskih kopova od podzemnih voda. ...Dušan Polomčić, Tomislav Šubaranović, Zoran Stojićević. "Hidrodinamički proračun zaštite površinskog kopa Drmno od podzemnih voda u periodu 2018-2022. godina" in Zbornik apstrakata sa 9. Međunarodne konferencije Ugalj, Zlatibor, 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
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Hydrogeochemistry of Uranium in the Groundwaters of Serbia
Marina Ćuk, Maja Todorović, Petar Papić, Jovan Kovačević, Zoran Nikić. "Hydrogeochemistry of Uranium in the Groundwaters of Serbia" in Uranium - Past and Future Challenges, Springer International Publishing Switzerland (2015). https://doi.org/10.1007/978-3-319-11059-2_89
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Complex geophysical survey on solving the problem of water loss in the karst terrain reservoir
Branislav Sretković, Dejan Vučković (2023)Geophysical surveys in karst terrain are always a specific challenge. Each of them requires a careful consideration of the problem, specific conditions on the ground, the selection of adequate methods applicable in that specific and unique karst area. But they should have one thing in common: a complex approach and looking at the problem from wider to narrower, with a gradual narrowing of the investigation area, increasing the spatial precision and resolution of the obtained data. On the example of ...Branislav Sretković, Dejan Vučković. "Complex geophysical survey on solving the problem of water loss in the karst terrain reservoir" in 8th Symposium Geoscience 2023, Bucharest, 9-11. November 2023, Bucharest : Editura Cetatea de Scaun (2023)
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Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda
Đorđije M. Božović (2023)Predmet istraživanja doktorske disertacije su bunari sa horizontalnim drenovima beogradskog izvorišta podzemnih voda, drugog najvećeg izvorišta ovog tipa na svetu, čiji je režim rada opterećen procesima intenzivnog starenja prisutnog od samog početka formiranja izvorišta, početkom 1950‒ih godina. Istraživanja sprovedena u okviru izrade disertacije su imala za cilj definisanje nove metodologije izučavanja procesa mehaničkog i biohemijskog kolmiranja drenova izradom detaljnih 3D numeričkih hidrodinamičkih modela, upotrebom postojećih, dostupnih i široko rasprostranjenih računarskih programa. Istraživanja su realizovana simulacijom ostvarenog režima podzemnih voda ...modeliranje podzemnih voda, hidrauličke karakteristike drenova, koeficijent propusnosti drenova, prifilterska zona drena, hidraulički otpori na drenovima, kolmiranje drenova, ulazne brzine podzemnih voda, MODFLOW, CLN Package... calculation model for groundwater flowing to horizontal seepage wells. Journal of Earth Sys. Sci., 122 (2). DOI: 10.1007/s12040-013-0283-1 212 Weidner C., Houben, G.J., Halisch, M., Kaufhold, S., 2016. Wellbore skin in mine dewatering and drinking water supply: field observation, mineralogy and hydraulic ...
... zone while the wells are in operation. The results of the hydrodynamic analysis served as a basis for recommending the optimal level of time discretization for simulating the dynamics of the aquifer and the area of the model covering the immediate zone of the radial collector wells. The operation ...
... Doktorska disertacija 7 LITERATURA 1 Ahmed, N., Taylor, S.W., Sheng, Z., 2014. Hydraulics of Wells: design, construction, testing, and maintenance of water well systems. Task Committee on hydraulics of wells. DOI: 10.1061/9780784412732 2 Anderson, M.P., Woessner, W.W., 1992. Applied groundwater modeling: ...Đorđije M. Božović. Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda, Beograd : [Đ. Božović], 2023
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Ocena kvaliteta i mogućnost korišćenja podzemnih voda za piće i navodnjavanje u slivu reke Ralje
Analiza mogućnosti korišćenja podzemnih voda za potrebe vodosnabdevanje stanovništva kao i za navodnjavanje vršena je na prostoru sliva reke Ralje. Istražni prostor veličine oko 280 km2 je obuhvatio veći deo sliva reke Ralje koji se administrativno nalaze na području grada Beograda. Podzemne vode su glavni izvor za vodosnabdevanje i navodnjavanje u ovom području. Seoska naselja nemaju urađenu komunalnu infrastrukturu pa predstavljaju značajan faktor za degradaciju kvaliteta podzemnih voda na ovom području. U periodu 2012-2014 godine prikupljeno je 100 uzorka ...Sunčica Ninković, Nebojša Atanacković, Sava Magazinović, Jakov Andrijašević, Mihailo Šević. "Ocena kvaliteta i mogućnost korišćenja podzemnih voda za piće i navodnjavanje u slivu reke Ralje" in XV Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Kopaonik, 14-17.septembar 2016. godine, Univerzitet u Beogradu- Rudarsko-geološki fakultet (2016)
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The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain
Novak Novčić, Marinko Toljić (2023)The evolution of intraplate sedimentary basins located in the vicinity of an active convergent plate boundary is often controlled by the collisional dynamics of the adjacent orogen. The transfer of compression from the orogen to the platform's interior results in the formation of complex structural geometry and kinematics that often reactivate older crustal faults, focus far-field stresses and control the evolution of associated sedimentary basins. One place where this localisation can be optimally understood is the Precaspian Basin, situated ...Intrakratonske deformacije, transpresija, kosa kompresija, krustalni rasedi, intrakratonski transfer stresa, kontrakcioni blokoviNovak Novčić, Marinko Toljić. "The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain" in Global and Planetary Change, Elsevier BV (2023). https://doi.org/10.1016/j.gloplacha.2023.104056