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Упит dcterms_subject_txt:oil and gas

2461 items

  • Analiza obrazovnog sistema i kadrovskog potencijala Republike Srbije u oblasti rudarstva i geologije

    Dragan Ignjatović, Stevan Đenadić, Predrag Jovančić, Filip Miletić, Jovana Mitrović (2024)
    Adekvatno postavljen i kontinualno unapređivan sistem obrazovanja predstavlja jasan preduslov za razvoj pojedinca, društva i države u celini. Sistem obrazovanja u Republici Srbiji davno je postavljen, a reforme nisu do kraja sprovedene. Posebno je to izraženo u visokom obrazovanju gde reforma po bolonjskom sistemu nije do kraja sprovedena ili je negativno zloupotrebljena. Trenutno je sistem obrazovanja je pod velikim pritiskom usled oštrih zahteva tržišta rada. U ovom radu je izvršena analiza obrazovnog sistema u oblasti rudarstva i geologije u ...
    obrazovanje, rudarstvo, geologija
    ... sirovina (3 godine); Rukovalac postrojenjima za dobijanje nafte i gasa (3 godine). Obrazovni profili prilagođeni za realizaciju po modelu dualnog obrazovanja [7]: 1. Rukovalac mašinama i uređajima za eksploataciju nafte i gasa (3 godine). M O . ı BR O O — U okviru srednjeg obrazovanja ...
    ... j eksploataciji Rukovalac postrojenja za dobijanje 2. : 3 – Tehnička škola, Zrenjanin nafte i gasa 3. Rukovalacšnasman']a i uređajima za 3 – Tehnička škola, Zrenjanin eksploataciju nafte i gasa Geološki tehničar za geotehniku i - Geološka i hidrometeorološka škola Milutin 4. ; :: 4 . :. ...
    ... profilu Rukovalac postrojenjima za dobijanje nafte i gasa Godina 14/15 | 15/16 | 16/I7 | 17/18 | 18/19 | 19/20 | 20/21 | 21/22 | 22/23 | 23/24 Ukupno učenika 30 30 30 30 30 30 26 24 20 23 Rukovalac mašinama i uređajima za eksploataciju nafte i gasa je aktivan od aktuclne godine u Tehničkoj školi u ...

  • Neeksplozivni generatori bušotinskog pritiska kao zamena eksplozivnih punjenja

    Kričak Lazar, Negovanović Milanka, Mitrović Stojan, Marković Jovan, Milanović Stefan, Simić Nikola (2018)

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija

  • The Impact Assessment of NO2 Emission from District Heating Plant on Local Air Quality, the Case of Zemun, Belgrade

    Boban Pavlović, Uroš Pantelić, Marija Živković, Dejan Ivezić (2021)
    The Belgrade district heating system relies on fossil fuels in heat production, where natural gas has the largest share of around 95% and fuel oil with around 4.4%. The Zemun heating plant is completely fueled with fuel oil. Currently, it is the largest plant that is not fueled with natural gas. The objective of this paper is to assess the impact of NO2 from the Zemun heating plant on local air quality by analyzing and comparing the concentration of ...
    NO2, Zagađenje vazduha, Kvalitet vazduh na lokalnom nivou, Model disperzije, AERMOD, Daljinsko grejanje, Beograd

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid

  • DFT study of free radical scavenging activity of erodiol

    Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)
    Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...
    депсиде, еродиол, механизми за уклањање слободних радикала, БДЕ, ИП, ПА

  • Primena termovizije za merenje i detekciju gasova

    Kostić Ivana, Tomić Ljubiša, Damnjanović Vesna, Bondžulić Boban (2012)

  • Opremanje bušotine X zavojnom pumpom

    Milan Filipović (2024)
    Ovaj rad se bavi osnovnim pojmovima i karakteristikama zavojnih pumpi.Prikazan je sklop zavojnih pumpi i njena prateća oprema. Objašnjen je princip rada zavojnih pumpi kao i uloga svakog mašinskog elementa koji se nalazi u pumpi. Razmotrene su prednosti i nedostaci primene ovih primarnih mehaničkih metoda eksploatacije ugljovodonika. Dat je uvid u inovativna rešenja problematike primene zavojnih pumpi. Na konkretnom primeru bušotine X su prikazani problemi kao i rešenja primene ovih primarnih mehaničkih metoda u praksi. Napravljena je detaljna analiza ...
    zavojne pumpe, oprema, primarne mehaničke metode, ugljovodonici, analiza rada
    ... moment koji stupa zbog reduktorskog sklopa može izazvati havariju. Bitno Je napomenuti i da prisustvo gasa, odnosno visoki GOR (gas-oil ratio), predstavlja problem za efikasnu proizvodnju. Gas se rastvara u elastomerima usled čega dolazi do pojave mehura koji su destruktivni po radno kolo zavojne ...
    ... C-FER Technologies, and Lonnie J. Dunn, SPE, "Weatherford Artificial Lift Systems", Weatherford, 2006 • Schlumberger, 2024, https://www.slb.com/products-and-services/innovating- in-o1l-and-gas/completions/artificial-lift/power-systems-and-cables/surface- electrical-equipment-and-services/wellhea ...
    ... Viskoznost fluida & Edit'BOFluid' D x FLUID Name: Black Oil Save as template Description: Properties | Viscosity | Calibration | Thermal Specific heat capacity Thermal conductivity Gas 2.30274 k)/(kg.K) + |0.0346 W/(m.K) Oil 1.88406 KJ/(kg.K) Y |0.1384 W/(m.K) + Water 4.1868 Kk)/(kg ...

  • Uncertainty of carbon dioxide emission factor for natural gas

    Živković Marija, Ivezić Dejan, Danilović Dušan, Madžarević Aleksandar (2012)

  • Determination of Optimal Parameters of Distributive Gas Pipeline by Dynamic Programming Method

    Danilović Dušan, Karović-Maričić Vesna, Ristović Ivica (2011)

  • Resursi nafte i gasa u Srbiji: perspektivna područja, konvencionalni i nekonvencionalni potencijal

    Kostić Aleksandar (2010)

  • Synergistic Effect of the Insulation Characteristics of Gas Mixtures under the Influence of Pulse Voltages

    Kartalović Nenad, Stanković Koviljka, Aleksandrović Snežana, Brajović Dragan (2017)

  • Application of the PROMETHEE and VIKOR methods for selecting the most suitable carbon dioxide geological storage option

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2019)
    CO2 storage in geological formations is one of the leading solutions for mitigation of greenhouse gas emissions. Types of geological formations that can be used for CO2 storage, that are discussed in this paper are: depleted oil and gas reservoirs, saline aquifers and injection CO2 in partially depleted oil reservoirs for enhanced oil recovery (EOR–CO2 method). In order to select the most suitable geological storage of CO2, the ranking of these storage options was performed using two methods of ...
    Prometej, vikor, višekriterijumsko odlučivanje, geološko skladištenje

  • Analiza rada električnih centrifugalnih pumpi

    Milica Stanojević (2024)
    Ovaj rad analizira rad električne centrifugalne pumpe (ESP) u naftnoj industriji, sa fokusom na problem taloženja kamenca (karbonatnih naslaga) unutar sistema. Električne centrifugalne pumpe (ESP) predstavljaju srce mnogih naftnih bušotina. Njihova visoka pouzdanost i sposobnost rada u zahtevnim uslovima čine ih neophodnim za stabilnu i kontinuiranu proizvodnju.Senzori igraju ključnu ulogu u praćenju rada ESP sistema i detekciji ranih znakova taloženja kamenca. Problem taloženja kamenca je izuzetno značajan, jer može dovesti do smanjenja efikasnosti pumpe, povećanja troškova održavanja, i dugoročnih zastoja ...
    električne centrifugalne pumpe (ESP), formiranje kamenca (karbonatnih naslaga), hemijski inhibitori
    ... rols/ 8. Bafghi, M., Vahedi, A., 2018., „4 Comparison of Electric Motors for Flectrical Submersible Pumps Used in the Oil and Gas Industry”, URL: https://iopscience.iop.org/article/10.1088/1757-899X/433/1/012091/pdf (15.10.2020). 9. Fetoui, L, 2017. a, „ESP motor”, URL: https:/pDproduction- ...
    ... dugoročna rešenja za stabilnu ı ekonomski održivu proizvodnju nafte i gasa. 40 Analiza rada električnih centifugalnih pumpi 8. Literatura 1. Takacs, G., 2009. „Electrical Submerisble Pumps Manual: Design, Operations, And Maintenance “. 2. Extract, 2023. URL: https://www.extractproduction ...
    ... Standardni i integrirani usis ne odvajaju gas. lako može doći do odvajanja gasa ı tečnosti, to se dešava kao prirodno odvajanje jer deo gasa ne uđe zajedno s tečnošću u usis. Ova vrsta usisa koristi se kod bušotina koje imaju izrazito mali udeo gasa u proizvodnom fluidu. Za pumpe s radijalnim ...

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)

  • Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation

    Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović (2023)
    The integration of wastewater heat pumps (using purified water) in district heating systems is analyzed in this paper. The simulation procedure is proposed to analyze the impacts of stochasticity of purified water temperature and flow to heat pump integration and operation. The analysis includes calculation of the daily and seasonal coefficient of performance, as well as fossil fuel savings and CO2 emission reduction due to wastewater heat pump use. The proposed procedure is implemented for the case study in ...
    otpadne vode, toplotna pumpa, daljinsko grejanje, simulacija

  • Утечњени природни гас (УПГ) – технологија производње и регасификације

    Јована Милетић (2024)
    У овом раду истраживање је обухватило сагледавање карактеристика утечњеног природног гаса као извора енергије и његове улоге у савременој расподели потрошње енергије на глобалном и европском нивоу. Проучени су елементи тржишта утечњеног природног гаса, сектори коришћења, транс-портне руте и количине испорука. Сагледан је пут природног гаса од лежишта до корисника преко утечњавања и транспорта у резервоарима, са посебним акцентом на технологијама производње и регасификације. Објашњено је пречишћавање сировог природног гаса ради уласка у процес утечњавања, процеси утешњавања и настојања ...
    утечњени природни гас, технологија производње и рега- сификације, транспорт, директно коришћење УПГ-а, могућност коришћења УПГ-а у Србији
    ... Shell Global (2024). Shell LNG „OQutlook 2024. United Kingdom, London.https://www.shell.com/what-we-do/oil-and-natural-gas/liquefied-natural-gas- ing/Ing-outlook-2024.html pristupljeno 22.5.2024. Simon, K. et al. (2009). Pregled procesa ukapljivanja prirodnog plina. Rudarsko- geološki nafini ...
    ... , Lithuania, Vilnius. DOI: 10.1007/978-3-030- 94744-3_27 SETI Petroleum Equipment. Oil & Gas Downstream Equipment and Services. Introductory Overview of Marine Loading Arms. Beccar, Argentina. https://seti- equipos.com/en/marine-loading-arms-introductory-overview/ pristupljeno 20.6.2024. Shell ...
    ... advisories-and-debriefs/sustainability- whitepaper-Ing-as-marinc-fuel.pdf pristupljeno 1.8.2024. American Bureau of Shipping (ABS) (2023). LNG VALUE CHAIN. https://ww2.eagle.org/content/dam/eagle/publications/L NG%20Value%20Chain.pdf pristupljeno 27.6.2024. Arab Oil Natural Gas, AONG Website ...

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology
    ... T.B., 2011. Guidelines and recommended terms for expression of stable- isotope-ratio and gas-ratio measurement results. Rapid Communications in Mass Spectrometry. 25, 2538–2560. Table 4 d13C values of dehydroicetexanes and dehydroabietane from two Swedish mudstones. P03 and P10: HPLC-fractions collected ...
    ... Coal Crude oil Triassic-Jurassic boundary NMR HPLC GC-MS GC-MS-MS a b s t r a c t Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMR- spectroscopy as cis- and trans-d ...
    ... shales and coal from Canada and Greenland it was an obvious idea, first to search for them in high latitude oils. Five different oil types were detected in West Green- land (Christiansen et al., 1996; Bojesen-Koefoed et al., 1999; Nytoft et al., 2002). Three of them have a terrestrial origin and one of ...

  • Savremeni pristup rešavanja problema industrijskog otpada

    Mariја Bošković (2024)
    Rad ukazuje na savremene metode rešavanja problema industrijskog otpada, sa posebnim fokusom na pećnu prašinu koja nastaje tokom metalurških procesa, poput proizvodnje čelika u elektrolučnim pećima. U radu se detaljno razmatra hemijski sastav pećne prašine, koja sadrži teške metale poput cinka, olova i kadmijuma, i naglašavaju ekološki izazovi koje predstavlja njeno zbrinjavanje. Takođe, analiziraju se metode tretmana i valorizacije pećne prašine, uključujući pirometalurške i hidrometalurške procese, pri čemu je poseban akcenat stavljen na reciklažu cinka iz pećne prašine. Dalje, ...
    prašina, elektrolučna peć, cink, teški metali, reciklaža
    ... jet drops film drops \ Ć B • 0 e e K_ o 0 O liquid bubble cap o O N i \ o o o - KOA liquid gaS bubble a) bubble emerging b) rupture of the liquid film c) formation of a liquid jet and at the liquid surface Jet droplets Slika 17. Tri koraka koji dovode do formiranja dva tipa kapljica ...
    ... naslage postanu prevelike, potreban je veći pritisak za prolaz gasa kroz filter, što smanjuje protok gasa i efikasnost filtracije. U tom slučaju, filter vreće se čiste komprimovanim vazduhom pod podpritiskom. Primarni i sekundarni dimni gasovi vode se do postrojenja za otprašivanje putem cevovoda, gde ...
    ... parents and my brother Matija, as well as my friends who have provided me with unwavering support and encouragement throughout my years of study and during the process of writing this thesis. Their assistance and understanding have been crucial. I am grateful for their patience, motivation, and enc ...