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Упит dcterms_subject_txt:Methanol Injection

36 items

  • 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

  • The preliminary selection of oil reservoir in Serbia for carbon dioxide injection and storage by a multicriteria decision-making approach: a case study

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović (2021)
    geološko skladištenje CO2, naftna ležišta, Srbija, VIKOR, TOPSIS

  • 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

  • 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

  • Injection compositions

    Crnogorac Luka, Kubatović Anđela (2016)

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... tax, was underground injection in an aquifer – a separate sand body filled with salt water situated right below the Sleipner field (the “Utsira” formation). Before injection design could be finalized it had to be found suitable and safe to store the 25 Mt CO. Before injection started, the storage ...
    ... porosity and permeability. The storage site must have enough and available capacity to receive the rate of injection of CO» as it was removed from its source. Today, well-drilling and injection technology, computer simulation of reservoir storage and monitoring methods from existing applications are ...
    ... capacity cost roughly S7—%30 per ton of CO» sequestered (storage costs only) and range from the injection of supercritical CO- into subsurface sedimentary formations to in-situ carbon mineralization via injection of CO-»-enriched fluids into formations. Storage of a total of 125 Gt CO» would result in ...

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... drilling involves the drilling: of injection and production bore- holes. In order to achieve the most efficient use of coal resources, the borehole grid is drilled through the ground in the selected exploitation field, fig. 2. Connections between injection and production boreholes require ...
    ... smooth and easy flow of the syngas. The continuous retraction injection point (CRIP) developed by Lawrence Livermore National Laboratory in the 1980"s, significantly helps to establish that channel or reaction zone, fig. 3. The injection boreholes Above-ground gas processing plant Syngas HiorNH; ...
    ... content from the contaminated layer using drainage boreholes, or by intensive flushing of the layer through the injection and pumping of water or special solutions through the system of injection borehole for drainage. In most cases, reconstruction mcasures are very costly, especially when pumping con- ...

  • 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

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... purified by fractionation with dichloromethane and methanol (50:50, V/V) through silica-gel in order to remove high polar derivatisation artefacts. In addition, 50 µL of the same internal standard was added to the third fraction as well. Before injection into the gas chromatograph (GC), all of the extracts ...
    ... correction of inaccuracies in the injection time. Hormone analyses Extraction. The target compounds were isolated from the river water using SPE. SUPELCLEAN ENVI-18 SPE Tubes (6 mL, 1 g) that had been conditioned with 5 mL of n-hexane, 5 mL of ethyl acetate and 5 mL of methanol and washed with 10 mL of ...
    ... min and then the hormones were eluted with 6 mL of a mixture of ethyl acetate and methanol (5:1). Extract was evaporated to dryness under gentle stream of nitrogen and reconstituted in small volume (100 µL) of methanol. This solution was filtered using LUT Syringe Filters PTFE, 13 mm, 0.45 μm and t ...

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... used in the production of hydrogen, ammonia, and methanol [21-22]. There are a number of physical absorption processes with different existing commercial physical solvents: Selexol (dimethylether of polyethylene glycol), Resticol process (methanol), Fluor process (propylene carbonate), Purisol (N-methyl ...
    ... This solution includes capturing CO2 produced in the industrial and power sectors, its compression and transportation through pipeline system and injection in different geological formations [2,3]. Capturing CO2 is the most expensive phase in the carbon capture and storage process and it accounts for ...
    ... (accessed on 25 June 2021). 3. Tomić, L.; Karović-Maričić, V.; & Danilović, D. The preliminary selection of oil reservoir in Serbia for carbon dioxide injection and storage by a multicriteria decision-making approach: a case study. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2021 ...

  • 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

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Smanjenje sleganja plitkih temelja primenom mikrošipova

    Slobodan Ćorić, Dragoslav Rakić (2021)
    Mikrošipovi su šipovi malog prečnika koji se grade tako što se u tlu specijalni postupkom formira bušotina koja se zatim armira i injektira. Njihov prečnik je najčešće 150 – 300 mm, a dužina može da bude i više desetina metara. Mikrošipovi mogu da se grade u svim vrstama tla i mogu da budu vertikalni i kosi. Oni se, stoga, koriste kao zamena za konvencionalne šipove i ankere. Primena mikrošipova u fundiranju predstavlja jedan savremeni način izgradnje i sanacije temelja/objekata. ...
    mikrošipovi, sleganje plitkih temelja i mikrošipova, krutost tla i mikrošipova

  • Analysis of the exhaust emissions inventory from auxiliary mining machines

    Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)
    Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...
    emissions, mining, auxiliary machines

  • 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.

  • 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

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... the use of gravel pack method. To achieve more efficient oil production, it has defined a model for adequate distribution of well injection gas, at the level of gathering stations or compressor stations. For the purpose of oil production optimization, it has applied the system analysis ...
    ... than 3 mg/l. Additionally, there has been defined a modern integral concept of preparation of produced formation water at the oilfield by its injection into geological formations, as the best solution, from both economic and environmental point of view. This concept of formation water preparation ...
    ... and atomistic simulations, Elsevier Science, 40,103- 127. DicaLite (2013) www.dicalite.com Dmitriyd S.B., Patzek T.W., (2000) Control of Water Injection into a Layered Formation, SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, 3–5 April, pp. 1-11. Đajić N. (2003) Energija za održivi ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... the use of gravel pack method. To achieve more efficient oil production, it has defined a model for adequate distribution of well injection gas, at the level of gathering stations or compressor stations. For the purpose of oil production optimization, it has applied the system analysis ...
    ... than 3 mg/l. Additionally, there has been defined a modern integral concept of preparation of produced formation water at the oilfield by its injection into geological formations, as the best solution, from both economic and environmental point of view. This concept of formation water preparation ...
    ... and atomistic simulations, Elsevier Science, 40,103- 127. DicaLite (2013) www.dicalite.com Dmitriyd S.B., Patzek T.W., (2000) Control of Water Injection into a Layered Formation, SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, 3–5 April, pp. 1-11. Đajić N. (2003) Energija za održivi ...

  • Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A

    Isidora Veljanoski (2024)
    U ovom radu opisana je primena CCUS tehnologija u kompaniji NIS i na koji način treba da se optimizuje da bi projekat bio rentabilan.U prvom i drugom poglavlju opisani su energetski trendovi i tranzicije, razvojni mehanizmi za regulisanje emisije gasova staklene baste i o ugljen-dioksidu kao hemijskom jedinjenju i šta je to CCUS.U trećem, četvrtom i petom poglavlju je detaljnije opisano izdvajanje, hvatanje, transport i skladištenje ugljen-dioksida.Šesto poglavlje i sedmo poglavlje obuhvataju rešenja za razvoj i realizaciju CCUS projekata ...
    energetski trendovi, ugljen-dioksid, CCUS, izdvajanje, hvatanje, transport i skladištenje CO2, ležište, ekonomija projekta
    ... proizvodnju električne energije. PI! Primeri šema transporta su prikazan na slici 4.1. BUFFER STORAGE ONSHORE TRANSPORT OFFSHORE TRANSPORT CO. INJECTION. TO GEOLOGICAL STORAGE Slika 4.1 — Šema transporta ugljen-dioksida % 22 4.1 Transport cevovodima Transport cevovodom predstavljaju najčešće ...
    ... oslanjaju se sve više na reciklirani CO- (Slika 5.1). 231 26 Point ofeconomical production shut down Oi l pr od uc ti on Time from CO., injection to oil production Purchased CO, CO , in je ct io n Time Slika 5.1 — Primer prikaza odnosa proizvodnje nafie, uhvaćenog i recikliranog CO>» ...

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... emperature at the thermal spring, ranges from 25.9 to 26.6 "C, where lower temperatures were recorded during the spring period, indicating the injection of cold and young, water into the thermal water drainage zone. The pH values also change slightly with depth, showing a decreasing, character ...