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Упит dcterms_creator_txt:Bruchle W.

588 items

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... 4]. Walking Beam Equalizer Bearing Horsehead — Horsel Equalizer Pitman Crank Gear Reducer Wireline Hanger (Bridle) Counterweight j ·-W \-——Tubing String Brake Lever Figure 1.1: Components ofa Rod Pumping System /5/ 2.1. Working Cycle of a Sucker Rod Pump The alternating: movement ...
    ... fiction cup M - mechanical Location of Seating Assembily: A-top B - bottom T - boltom, fravel barrel Barrel Type: | H -heavy wallf/metal plunger W - thin Wall fimetal plunger P - heauy wall fsof pack plunger S - thin wall fsot pack plunger PumpType: | R-rod T-tubing Example of a deep well ...
    ... actual data and examine the differences between RodStar, Prosper and QRod. Table 6.1. Input Well XX-1 H 5 B % o || B O Casing pressure -w |= s |Š B |5 – ~ š |ž n E || -1 3 |E |- | .. |-- : [j P m 120 WC . 76 Pump depth m 692 Tubing O.D. 0a 73.025 ...

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • A hundred years of Milutin Milanković's climate change theory - geological implications

    Dejan Radivojević (2020)
    Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...
    циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт
    ... Ridge (oDP Sites 1262, 1263, and 1266): Evidence from Mn and U enrichment factors. Paleo- ceanography, 25: PA4202. DEWEy, j. F., CANDE, S. & PITMAN, W. C. 1989. Tectonic evolu- tion of the India/Eurasia Collision zone. Eclogae geol. Helv., 82 (3): 717–734. EARLE, S. 2015. Physical Geology. victoria ...
    ... SHACKLEToN, N. j. 1976. variations in the Earth’s orbit: Pacemaker of the Ice Ages. Science, 194: 1121–1132. HILGEN, j.F., BRINKHUS, H., zACHARIASSE, W-j. 2006. Unit stra- totypes for global stages: The Neogene perspective. Earth-Science reviews, 74: 113–125. HINNov, L. A. & oGG, j.G. 2007. Cyclos ...
    ... Stratigraphy, 4 (2–3): 239–251. joyCE, S. 2000. The dead zones: oxygen-starved coastal wa- ters. Environmental Health Perspectives, 108: 120–125. KöPPEN, W. & WEGENER, A. 1924. die klimate der geologis- chen vorzeit. verlag von Gebrüder Bornträger, Berlin, 256 pp. LASKAR, j., RoBUTEL, P., joUTEL, F., GASTINEAU ...

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia

    Оливера Крунић (2021)
    минералне воде

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... 14000 j US average: 13061 kWh/c 12000 j 10000 j 8000 j EU-27 average: 6492 kWh/c 6000 4000 j 2000 j ——LFU-27 <——=US 0 eo w i e T T n o u 00 miuČ- O T W i m TO O ~ 0 O O a eNeon E:o:u: ' o e i e oč reeo oeezkžjjBNj“”oZo S Wwe e esA Č e!đ e RT NTe ...
    ... Nordrhein- :. Weisweiler Germany Westfalen 14500 Lignite 1595 9,09 3400 1,08 Monroe US Michigan 14263 | Subbituminous/| ~ 0y 4,33 4722 0,97 Bituminous W A Parish US Texas 13795 Subbituminous 4008 3,44 4817 0,93 Martin Lake US Texas 13413 Lignite/ 2380 5,64 3180 1,02 Subbituminous Gen]M US Ohio 13386 ...

  • Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex

    Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)
    Timok Magmatic Complex, Neotethys subduction, basin geodynamics, analogue modelling

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... PALCU, D., MANDIC, O. & KRIJGSMAN, W. (2017): Changing seas in the Early–Middle Miocene of Central Europe: a Mediterranean approach to Paratethyan stratigraphy.‒ Terra Nova, 29, 273–281. doi: 10.1111/ter.12273 SANT, K., MANDIC, O., RUNDIĆ, LJ., KUIPER, K. & KRIJGSMAN, W. (2018): Age and evolution of ...
    ... elevated since the early Upper Miocene (Fig. 1). Uplift of the Torlak block was probably controlled by the NE– SW striking Torlak fault as well as the E–W directed Rakovica fault and its segments (Figs.17 and 21). This structure defines the northern edge of the Beli Potok trough which repre- sents the ...
    ... smaj Mountain (MAROVIĆ & KNEŽEVIĆ, 1985). Its signifi- cant differentiation begins in the early Sarmatian when, follow- ing the faults of NE-SW and E-W directions, the subsidence and formation of smaller bays and troughs flooded by the waters of Paratethys were carried out. Such characteristics are ...

  • Geotermalne karakteristike područja Semberije , Republika Srpska

    Igor Glavaš (2024)
    Cilj završnog rada predstavlja, opis geotermalnih karakteristika područja Semberije, Republika Srpska, BiH.Rad se sastoji od opšteg dijela u kojem se navode osnovne karakteristike područja (geomorfološke, geografske, hidrološke,hidrometeorološke, geološke, tektonske i hidrogeološke) i specijalnog dijela koji detaljnije ulazi u tematiku osobina geotermalne energije i njihovih karakteristika u zadatom području kao i definisanje geotermalnog potencijala koje to područje ima.Sa prognoznim litološkim profilima 6 dubokih istražnih bušotina su izrađena 2 regionalna geološka, a njegovom konverzijom i hidrogeološka profila na osnovu kojih je, stečena ...
    geotermalna energija, Semberija, geotermalni potencijal
    ... su: glina 0.8 W/mK, pijesak 1.6 W/mK, glinoviti laporac 1.2 W/mK, škriljci 2 W/mK, krečnjak 2.3 W/mK, dolomit 3.4 W/mK i slično. Ponderisanjem vrijednosti toplotne provodljivosti za odgovarajuće debljine litoloških sredina, dobijena je srednja vrijednost za bušotinu Dv-1 od 2.1 W/mK. Ovi podaci ...
    ... 19 Tabela 4.2. Geotermalni parametri bušotina na području Semberije Geotermalni Toplotna Toplotni (ĆO) gradijent | provodljivost tok (C/km) (W/mK) (mV/m*?) Bušotina | Dubina | femperatura Do-1 Domaljevac Bij-1 Bijeljina S-1 Dvorovi 4.2.1.Porijeklo i načini prenosa geotermalne energije ...

  • Процена емисије гасова са ефектом стаклене баште као последице енергетске активности

    Горана Остојић (2024)
    Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...
    емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање
    ... NIIA d3 | W W W MTM . MI MI W MI WI W u MAs __KM __O _ |D __ ___ R aŠ — 38G _M __ __ 1 OE a _ MM - 4 le | %45 . %% 30 -- __ _ MMR %5 M8 - _ L NNEF WWNL WWWE WWWNWNL" M -Ms 408 - B - - WNNEF – WNHL WWNF | W -M8 | 408 ____ B k_ _J t_ L_ ı E I ı r " – - - - i —. i - L NE WWN W NE i BO - - ...
    ... as fuel delivered within that country but used by the militaries of other countries that are not cngaged in muhltilateral operations., -lu - m'g W w NE Emissions from fucls used in multilateral operations pursuant to the Chatter ofthe United Nations. Include emisstons fom fuel deli vered to the ...
    ... oKkoJmiHa bakTopu) 4.2. MHsO0op akropa eMucuje TIIpakynjbauw momaraKa TpeOa ma Ma3aOecpy mojnpa3yMeBaHe (Tup 1) m crneru()MuHe 3a 3eMJby (Tup 2 w Tup 3) (pakrope eMMHcHJe Ha OCHOBy IIDpHMeHcC OJUIyKa KOje pa3MaTpajy BpCTy H HHBO JegaarperamMje momaTaKa O AKTHBHOCTH JIOCTyIIHHX 3a ĐHXOBJy 3CMJby ...

  • Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)
    ... Carpathians, while in the south-west the Sokobanja-Zvonce and Rtanj-Pirot faults splayoff the Timok Fault. These two faults are connected by coeval E-W oriented normal faults thatcontrol several intra-montane basins and accommodate orogen-parallel extension. We infer thatall these deformations are driven ...

  • Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Tamara Bogdanović (2021)
    ... trench turbidites observed in theLjig Formation. The onset of the latest Cretaceous–Paleogene Adria-Europe continental collision resulted in large-scale W-wards thrusting that inverted the Cretaceous basins along NE Dinarides margin andemplaced sedimentary infill and basement of the European fore-arc over ...

  • Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations

    Bojan Kostić, Uroš Stojadinović, Nemanja Krstekanić, Marija Ružić, Aleksa Luković (2021)
    ... Neogene sediments in the western-central partof the Morava Valley Corridor, was induced by corrugated detachment faults during theOligocene–Miocene E-W oriented Dinaridic extension. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • Geomagnetna bura kategorije G5 u maju 2024. godine

    Magdalena Marčeva (2024)
    Zemlja poseduje magnetno polje, koje je generisano u njenom spoljašnjem jezgru. Magnetno polje Zemlje je konstantno izloženo dejstvu sunčevog magnetnog polja i zračenja koje se sa Sunca emituje. Naelektrisane čestice koje pristižu sa Sunca stupaju u interakciju sa magnetosferom, što dovodi do različitih geomagnetnih poremećaja.Geomagnetna aktivnost direktno je proporcionalna intenzitetu sunčevog zračenja koje dolazi do Zemlje. Pod uticajem sunčevog korpuskularnog zračenja dolazi do pojave geomagnetnih bura koje su praćene porastom intenziteta magnetnog polja.Količina i jačina dolaznog sunčevog zračenja zavisi ...
    magnetosfera, sunčevo zračenje, geomagnetna bura, indeksi geomagnetne aktivnosti, polarna svetlost
    ... polja koje je izazvalo datu buru bio jJak i da je formiranje prstenaste struje oko Zemlje trajalo kratko. GCK (Grocka, Srbija) | x . H'L/\ WVA W \·/M W -0100 0800 0500 700 000 1100 1300 1500 1700 1900 2100 2300 CLO0 0S0D 0500 G70D 0900 1:00 1300 1500 170D 1900 2L0D 2300 0100 0300 0500 070D 00D 1L0D ...
    ... (https://images.theconversation.com/files/559181/original/file-20231113-23- 84pk4b.jpg?ixlib=rb- 4.1.O&rect-23%2C4560%2C5136%2C2568&q=45&auto=format&w=1356&#hn=668&fit-cro PD) Rep magnetosfere Odbijene čestice — Sunčevog vjetra Ulazak čestica Polarni e o Sunčevog vjetra Sloj plazme OtVOrI ...
    ... indeks (Tročasovni podaci) Početak: Petak, 10. maj 2024. godine 9 II I 9 0 99 ©° \\, 59 9 Đ 9 9 p O b O QQ GQ Q'° „ 99 @\aa)&& \xq,aw(» LAAAR \?w\\a*·m)mo ,@@\ [ o ~ o ~ Kp in de ks o [J [[ N OO - L O N A Universal Time NM Space Weather Prediction Center Slika 5.2.1. ...

  • An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction

    Dejan Ćebić, Nebojša Ralević, Marina Marčeta (2020)
    нелинеарна једначина, 16.ред конвергенције, оптималне методе, подељене разлике

  • Remontni radovi u bušotini sa dubinskom pumpom

    Jovana Milošević (2024)
    Remontni i stimulativni radovi u naftnom inženjerstvu su radovi koji se primenjuju na bušotinama koje su već u proizvodnji ili potencijalno proizvodnim bušotinama, i u zavisnosti od toga imaju različitu svrhu. Remontni radovi predstavljaju sve radove koji su ograničeni na kanal bušotine, dok se stimulativni radovi odnose pribušotinsku zonu.U prvom slučaju remontni i stimulativni radovi kod proizvodnih bušotina služe za otklanjanje problema i povećavanje proizvodnje bušotine. Dok u drugom slučaju, kod potencijalnih bušotina su ovi radovi namenjeni završnim obradama ...
    remontni radovi, hemijska obrada, Gravel Pack, alat za instrumentaciju, puške za perforaciju
    ... bravom, pakerom sa W gumama, perforirani komad tubinga, G — 3 brava, kompozicija tubinga. (slika 30) Gornji deo G — 3 brave sa tubingom se vadi i postavlja se kompozicija tubinga sa opremom za klipnu dubinsku pumpu. Za svu opremu je potrebno posedovati pasoše. Paker sa W gumama Alat za unakrsnu ...
    ... unakrsnu cirkulaciju Usadni komad Slika 29, Ugrađivanje Gravel pack-a, pakera sa W gumama i perforirani deo tubinga, sa operacionom opremom 42 Usadni komad Paker sa W gumama Slika 30, Ugrađen gravel pack 43 7.10 PROIZVODNA OPREMA Spušta se proizvodna oprema: gasno sidro, komad tubinga ...
    ... ventil i ispitati rad pumpe ı hermetičnost ı na kraju je montiran C komad. Klipne šipke Dubinska pumpa · Perforirani tubinga · Paker sa W gumama Usadni komad Slika 31, Ugrađena klipna dubinska pumpa sa gravel pack opremom na dnu, završetak remonta 44 7.11 ZAVRŠETAK REMONTA BUŠOTINE ...