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Упит dcterms_subject_txt:fluid production

367 items

  • Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels

    Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković (2023)
    drilling fluid formulation, upstream oil and gas, fluid dynamics, fluid loss control, gel

  • 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
    ... 1 INTRODUCTION Oil is found in the reservoir under a certain pressure that allows the fluid to move from the reservoir into the well and then through the production system. If the production of fluid relies solely on the natural energy of the reservoir, this method of exploitation is called ...
    ... pressure is no longer enough to enable the flow of fluid through the well, pipeline, and surface equipment, when production has reached a minimum economically viable value additional energy must be supplied to continue extraction. If fluid production is achieved using additional energy, this method ...
    ... points, and integrate IPR and rod pumping system models to predict the maximum possible production rate, fluid level, and pump condition for a given pumping speed or the target production rate for any fluid level or pump intake pressure you specify [13]. 5.2 Prosper Prosper offers powerful s ...

  • Effect of Properties of Working Fluids on the Efficiency of a Low-Temperature Organic Rankine Cycle

    Marija Živković, Aleksandar Mijatović, Dejan Ivezić, Boban Pavlović (2024)
    Decarbonization of all segments of energy systems, both on the supply and demand side, is one of the main goals of the energy transition. Electricity supply in the future will largely rely on generation from intermittent energy sources: wind and solar. Locally available, non-utilized alternative low-temperature energy sources as hydro-geothermal wells, and abounded oil and gas wells, have the potential to provide continual energy production over the year. Electricity generation from these energy sources is carried out with working ...
    svojstva, radni fluidi, efikasnost, ORC, niska temperatura

  • Analiza softvera za projektovanje ESP sistema

    Aleksandar Sredojević (2024)
    U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...
    električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim
    ... koji je primenio glavni pokretač na pumpi predaje lopaticama radnog kola koje dalje predaju energiju fluidu, gde se povećava brzina kretanja fluida i tako sama kinetička energija fluida. Fluid velike brzine strujanja koji se ispušta pod uglom od horizontale zatim ulazi u lopatične kanale difuzora ...
    ... regulisana opštom energetskom Jednačinom koja opisuje očuvanje energije između dve tačke u fluidu koji teče. Ovo navodi da je promena energije u sadržaju fluida je jednak radu obavljenom na fluid. Fluid koji teče u pumpi može imati tri oblika energije: potencijalnu, kinetičku i pritisnu energiju ...
    ... datog protoka fluida, plus svi gubitaka energije koji se javljaju u pumpi. Korisna hidraulična snaga je proporcionalna proizvodu napora, protoka fluida i specifične težine fluida i može se izračunati iz H- Q krive pumpe pri bilo kojoj tački tečenja. U dve tačke Je nula: pri protoku fluida od nule ...

  • Значај петрографске анализе флуидних инклузија

    Стефан Петровић, Милош Велојић (2022)
    У раду је истакнут значај петрографске анализе током истраживања флуидних инклузија и приказане могућности ове методе на примерима неких од карактеристичних петрографских појава из различитих минерала. Петрографска анализа је први корак у испитивању флуидних инклузија. Правилно спроведена, петрографска анализа омогућава одређивање генетске везе флуидних инклузија и минерала домаћина, препознавање карактеристика флуидних инклузија и релевантну интерпретацију података из наредних корака истраживања. Петрографском анализом се дефинишу: а) дистрибуција флуидних инклузија у минералу; б) облик, величина и фазни састав флуидних инклузија; в) групације ...
    петрографија, флуидне инклузије, флуиди, групације

  • Optimizacija ispirnih fluida za bušenje dirigovanih bušotina

    Vukoman Krgović (1994)
    Ispirni fluidi, dirigovano bušenje

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... Monitoring of coal production The system for monitoring of production and preparation of coal is designed in such a way as to collect, register and present for perusal, mostly to those who manage coal production, all of the most significant production parameters, production events and circumstances ...
    ... reporting. All production capacities in the technological chain of production are defined on basis of data on equipment and locations. The technological chain of production is being elaborated through production operations. The solution encompasses the data on all production capacities in the ...
    ... manage coal production. Recording of the most important information from the production process, in all the technological phases, is being carried out by regular data input, in order to make data electronically registered in real time and presented for inspection, to help production process management ...

  • Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...
    Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetra
    ... Energy Source for Electricity Production in Serbia Boban Pavlović, Dejan Ivezić, Marija Živković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia | Boban Pavlović ...
    ... of r en ewable energy sou r ces (RES) in electricity production. Serbia is obliged to reach 27% of the gross energy final con sumption prov ided from the RES u ntil 2020. To identify the strategic RES for sustainable electricity production, it is necessary to com pare the individual contribution ...
    ... national electricity sector. Therefore, th e m ost potential RES for electricity production in Serbia has been a ssessed in or der to choose th e best solution for reducing the usage of lignite for electricity production. When considering the best solution among the available RES, it is necessary to ...

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)

  • Uticaj karakteristika ispirnih fluida na pribušotinsku zonu naftnih i gasnih bušotina

    Tatjana A. Malbašić (2016)
    bušotine, nafta, gas, ispirni fluidi, bušenje

  • 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
    ... to 2021, electricity production increased by 26%. Figure 4 shows the diagram of the total production of electricity in the countries of the European Union, as well as the generation of electricity from coal, as well as the share of coal in the energy mix of annual production. It remains an indisputable ...
    ... the case with Serbia. In 1990, the share of coal in the production of electricity was 72,6%, while in 2021 this share was 64.1%. In the same period from 1990 to 2021, electricity production decreased by 4% [11, 12]. Electricity production in USA follows the trend of the rest of the world, increasing ...
    ... 2023-10-17 09:22:00 Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Production of electricity ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... difficult to achieve production targets and profit without investing effort in detailed excavation planning. It is especially true for deposits with complex geological structure and production technology, as is the case for many coal mines in Serbia. The majority of coal production is used for generation ...
    ... 1. In Serbia, coal is the most important fuel in the generation of electricity, accounting for 65% of the power production 2. This fact is the main reason why production objectives of coal mine and power plant are strongly connected. The power plant owner is interested to know in advance ...
    ... site and at the stockyards 2. Homogenization of coal in mine site can be achieved at: - mining block (production of one excavator on one bench), - the connecting conveyors (production of all excavator on different benches). For the management of the coal homogenization process at the mining ...

  • An oilfield in Libya: A new model to enhance waste water disposal

    Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković (2016)
    нафта, лежишне воде, припрема

  • The impact of limestone fragmentation on raw mix production in cement industry

    Nikola Đokić, Lazar Kričak, Stefan Milanović, Marinko Pavlović, Stefan Krstić (2021)
    Raw mix design is one of crucial point in production of clinker. Cement industry use limestone, marl, clay in particular percent to provide the best quality in production of clinker. The quality of the material must be in line with the quality targets. Fragmentation is important element, because affect preblending design, economic norm from blasting to crusher. Blasting is an operation which affects all subsequent operations and costs. The Kuz-Ram model is possibly the most widely used approach to ...
    Blasting, Fragmentation, Crusher, Kuz-Ram, Raw Mix

  • Projection of SO2 emissions in coal power plants in Serbia

    Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)
    The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...
    енергeтика, емисије, СО2, угаљ, електране
    ... shows the basic characteristics related to electricity production in Germany, Poland and Serbia (population, total installed capacity, installed capacity from coal, gross electricity production, electricity production from coal, electricity production per capita) [1-9]. There are 42 coal-fired thermal ...
    ... are active in Germany. The installed capacity, structure of power plants and coal production are shown in Table 1 [1, 4, 10]. Table 1. Installed capacity, structure of power plants and coal production Production of coal (MO Country Capacity (MW) Power plants / Units Germany 57/106 Poland ...
    ... 4400 MVW, which exclusively use lignite and three thermal power plants-heating plants, with a capacity of 403 MW feor the production of electricity and 505 MW for the production of thermal energy, divided into 6 blocks, on liquid and gaseous fuels [10]. Figure 1 shows the SEE region with thermal power ...

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development

  • Exploration, production pace faster in Serbia, Bosnia and Herzegovina

    Karović-Maričić Vesna, Danilović Dušan, Batalović Veselin, Leković Branko (2012)

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... sectors of the energy chain: production, transformation, and consumption. In thc previous period, morc attention was given to cvaluating, emissions of the main GHG ·«&teontibutors: the cncrgy transformation sector (for example, clectricity generation, and hcat production in cecntralized supply systems) ...
    ... typical onshore oil and gas production and processing facility, including fugitivc emission and flaring. The calculation is based on data specifically derived to represent a typical upstream oil and gas company, which encompasses thc various activitics involved in production and processing. It considers ...
    ... attractive, companics in these situations tend to combust the produced gas on the production site directly. This process lcads to significant emissions of CH+, and CO». Aside rom intentional flaring at the production site, the flaring process can take place during hydrocarbon processing as non-routinc ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation