University of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Applying Interpretation Results of Drill Stem Test to Evaluate the Lower Miocene Formation in Bao Den Oilfield, Cuu Long Basin2092289608710.22059/jchpe.2024.370549.1476ENNguyenTuanFaculty of Geology & Petroleum Engineering, Vietnam National University, Ho Chi Minh City, Vietnam.0000-0001-8110-831XTran VanXuanFaculty of Geology & Petroleum Engineering, Vietnam National University, Ho Chi Minh City, Vietnam.Tran Thi MaiHuongFaculty of Geology & Petroleum Engineering, Vietnam National University, Ho Chi Minh City, VietnamTruong QuocThanhFaculty of Geology & Petroleum Engineering, Vietnam National University, Ho Chi Minh City, VietnamHoang TrongQuangFaculty of Geology & Petroleum Engineering, Vietnam National University, Ho Chi Minh City, VietnamJournal Article20240108The present research is aimed at exploring the B1.1 sandstone sequence located in the lower Miocene formation within the Bao Den oilfield situated in the Cuu Long basin. This study involves utilizing Pressure-Volume-Temperature well parameters, such as bubble pressure, oil gas ratio, oil formation volume coefficient, density, viscosity, total compressibility, and BI.1 sandstone sequence parameter, including effective thickness, average porosity, well radius, and water saturation. Our focus will be on analyzing reservoir tests with two methods - the conventional and progressive approaches. This study will examine the Horner graph and how it can be used with formulas for determining initial reservoir pressure, slope, and fluid conductivity as part of the traditional method. Additionally, effective permeability, skin coefficient, and conductivity will also be analyzed. The advanced method involves using Ecrin software to interpret results, which shows that both methods yield favorable skin coefficients. The outcomes indicate that the well and reservoir parameters are precisely determined: the initial pressure of the reservoir is 2617.5 psia, hydro conductivity equals 7680 mD.ft, while permeability is 106 mD, coefficient Skin is 14, well storage coefficient evaluates to 5.61E<sup>-4</sup> and distance to fault 439 ft. Based on the results, it is possible to assess that the BD-1X well in the Bao Den oilfield has promising potential as both oil and gas have favorable quality and volume attributes. This study's significance is providing input data for developing and exploiting oil fields resulting in choosing economical plans with commercial efficiency within the petroleum industry.https://jchpe.ut.ac.ir/article_96087_ff32a3956cc4afb95a002931624e4d3d.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201CFD Simulation of Various Two-Phase Flow Patterns in Y-Shaped Microfluidic Channels2292419632810.22059/jchpe.2024.371715.1479ENYounesAminiNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran.ValiyollahGhazanfariReactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute, IranAmir HosseinSaeedi DehaghaniDepartment of Petroleum Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, TehranMohammad MahdiShadmanNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, IranFatemehMansourzadehNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, IranJournal Article20240217This study presents a computational fluid dynamics (CFD) simulation of two-phase flow patterns in a Y-shaped microfluidic device. The two-phase flow of water and n-butyl acetate is simulated using the volume of fluid (VOF) method in a Y-shaped microfluidic device with different flow rates. A 2D model was used for simulation, and the results were compared to experimental data, showing good consistency. The study also examined the effects of organic (n-butyl acetate) and flow on the overall flow model. The authors observe three different flow patterns, including slug flow, parallel flow, and droplet flow, depending on the flow rate. The results indicate that a slug flow pattern is detected when the flow rates of the aqueous and organic phases are both low and similar. Nonetheless, as the overall flow rate rises, the slug flow pattern shifts to either parallel droplet or plug flow. Similarly, when the flow rate of the aqueous phase is increased while keeping the organic phase flow rate constant, the shift occurs from slug flow to droplet flow. Therefore, this study is significant in providing insights into the different flow regimes that can occur in a microfluidic system. This understanding can be used to design and optimize microfluidic devices for a variety of applications.https://jchpe.ut.ac.ir/article_96328_4dd881327833d1a141729b0c56562b05.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Evaluation Uncertainty in the Volume of Oil in Place in Mishrif Reservoir2432549649810.22059/jchpe.2024.373776.1491ENLoayKhameesDepartment of Petroleum Refining engineering, College of Petroleum Processes Engineering, Tikrit university, Tikrit, IraqFarah NabeelAbdulrazzaqDepartment of petroleum Engineering, College of Engineering, Basrah University, BasrahJournal Article20240312Calculating oil reserves is one of the most important applications of geological models, as it is considered an essential step to evaluate whether the reservoir is economical or not. Uncertainty methods can be used based on several reservoir factors to predict a range of reserve values, each value gives a range of production forecasts. These values are divided into probable estimates that give the highest, lowest and mean expected production, called P90, P50, and P10. Geostatistical models of the reservoirs P90, P50, and P10 must be established for dynamic models, analysis of the risk, reservoir management, and prediction. Formation volume factors, initial water saturation, and formation porosity values might be used to produce a range of values for the reserve via the volumetric method. A reserve requires to be proven when there is a probability of 90% indicating that the recovered quantities in reality are equal or above the estimates. These are typically denoted as P90 throughout the estimating process. P10 refers to the total of potential and probable reserves, and P50 refers to proven and probable reserves. In this research, these quantities were calculated using statistical functions to assess the uncertainty in the oil volume. This was done by building a geological model from the data of a group of wells using the Petrel program. Then the uncertainty techniques were used to determine the expected values of the uncertain variables and their corresponding values of oil in place originally (OOIP). The result of OOIP values presents that the OWC level is the most influential parameter on oil in place. A histogram was created with bin values ranging from 3300 to 3700 and with Bin step equal to 25 and the normal distribution for these bins was calculated to estimate P10, P50, and P90 values.https://jchpe.ut.ac.ir/article_96498_ee08df1f7fe35bcc765363d2f4a3d7e4.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241229Identification and Prioritization of Challenges and Development Technologies in One of Iran's Oil Fields in a Well-based Approach2552769649710.22059/jchpe.2024.367743.1462ENYasinKhaliliDepartment of Petroleum Engineering, Amirkabir University of Technology, Tehran, IranMohammadrezaAkbariDepartment of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran.HosseinHeiraniDepartment of Technology & Innovation Policy Studies, National Research Institute for Science Policy, Tehran, IranMohammadAhmadiDepartment of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran.Journal Article20231106The development and production of oil and gas reservoirs in Iran, possessing one of the largest oil reserves globally, face significant challenges. To address these challenges effectively, this paper employs modern techniques, including the Technology Tree and Morin Model, to identify and prioritize the challenges and solutions for the technological advancement of an Iranian oil field. Through collaboration with experts, target technology areas and oil field challenges are identified, and their priority is determined using the Morin Model. Key technologies in these areas are identified through questionnaires and expert consultations. Challenges such as advanced drilling techniques, enhanced oil recovery methods, and efficient reservoir management are highlighted, with prioritization crucial for resource allocation. The study focuses on south Iran, primarily examining the period from the late 1960s to the present day, with a particular emphasis on reservoir and well behavior, especially within the Ilam formation. A multidisciplinary expert committee, including representatives from the National Iranian Oil Company, Amirkabir University of Technology, and Iran Offshore Oil Company, oversaw the research. The validation of results was conducted through questionnaires and interviews, resulting in the development of a roadmap for oil field technologies in collaboration with relevant experts. Key technological solutions include improving drilling methods, utilizing downhole sensors, hydraulic fracturing, acidizing, and deploying smart systems in producing wells. This comprehensive framework emphasizes collaboration, validation, and prioritization in addressing technological challenges in Iran's oil industry, ensuring practical and effective solutions.https://jchpe.ut.ac.ir/article_96497_e6c87e80abd9e0cf352bc696c197a15e.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Highly Adsorption-Photocatalytic Tablet-Shaped Graphite Oxide-TiO2 Composites for Handling Organic Dye Pollutants2772889751110.22059/jchpe.2024.370403.1475ENDwiprayogoWibowoJl. KH. Ahmad Dahlan.FaizalMustapaDepartment of Marine Sciences, Institute of Teknologi dan Bisnis Muhammadiyah KolakaAlbiFabianDepartment of Environmental Engineering, Faculty of Engineering, Muhammadiyah University of Kendari.Eza RezkiFitalokaDepartment of Medical and Electrical Engineering, Faculty of Science and Technology, University of Mandala Waluya.DediArdiansyahFishery Products Technology, Faculty of Fisheries and Marine Science, Muhammadiyah University of Kendari.AryaniAdamiDepartment of Urban and Regional Planning, Faculty of Engineering, Lakidende University.AnwarSaidDepartment of Mining Engineering, Faculty of Engineering, Muhammadiyah University of Kendari.JamalMukaddasDepartment of Urban and Regional Planning, Faculty of Engineering, Lakidende University.AbriansyahAbriansyahDepartment of Mining Engineering, Faculty of Engineering, Muhammadiyah University of Kendari.Journal Article20240101Designing effective adsorption-photocatalysts on graphite oxide-TiO2 (G/TiO2) nanocomposites tablet with easy synthesis and low cost is a challenge in treating organic dye pollutants. Here, we invented an advanced adsorption-photocatalyst based on a TiO2 framework coupled with graphite oxide to form tablets using a physical mixing method. Furthermore, these tablets were molded using metal chips for extremely high adsorption photocatalysts towards organic dyes. The mass composition has been evaluated to compare the high degradation performance of the composite mass variation in degrading organic dyes, namely methyl orange (MO) and methylene blue (MB). We discovered the 1:2 mass variation of G/TiO2 resulted in an improvement in the adsorption-photocatalytic degradation of organic dyes. The degradation rate of MO dye was 93.99% after treatment with UV light irradiation for 60 min, and the reaction rate constant was k = 0.01726 min-1. Meanwhile, MB dye also showed good performance with a degradation percentage of 80.22% and a reaction rate constant of k = 0.00947 min-1. This constant was much higher than the two mass variations (1:1 and 2:1) of G/TiO2 due to the increased availability of good sites for graphite oxide adsorption and TiO2 electron-hole pair separation. In addition, the G/TiO2 tablets showed excellent reuse and reasonable degradation for wastewater treatment.https://jchpe.ut.ac.ir/article_97511_b3f8258f5ec024f26eddd5704bc4f398.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Desulfurization Capabilities of Indigenous Bacteria Isolates for Enhanced Sulfur Removal2893099751010.22059/jchpe.2024.368971.1467ENEmmanuelaKwao-BoatengDepartment Of Chemical Engineering, KNUST, Kumasi-GhanaKwabena OwusuDanquahNoguchi Memorial Institute for Medical Research, University of Ghana, Legon – Ghana0000-0003-4866-6306Emmanuel GodwinAnkudeyDepartment of Chemical Engineering, KNUST, Kumasi-Ghana.LawrenceDarkwahDepartment of Chemical Engineering, KNUST, Kumasi-Ghana.Derrick KontohBoatengKumasi Centre for Collaborative Research in Tropical Medicine, KNUST-Kumasi, Ghana.Journal Article20240103Desulfurization is an essential part of refinery operations due to the numerous effects of sulfur on refinery equipment and fuel product quality. Biocatalytic desulfurization methods potentially promote energy savings due to the mild temperature, and low-pressure operating conditions involved. Furthermore, the biological process results in a negligible level of undesirable products and emissions without lowering the calorific value of the fuel. In this study, indigenous microorganisms that thrive in hydrocarbon environments were isolated, characterized, and identified from waste oil dump sites at major garages in the Kumasi Metropolis, Ghana, and used to desulfurize crude oil. Preliminary screening resulted in 132 microbial isolates with 26 most potent isolates selected for the final identification and their use for desulfurization. The isolates identified included Stenotrophomonas maltophilia, pseudomonas aeruginosa, alcaligenes faecalis, enterococcus faecalis, xanthomonas maltophilia, pseudomonas maltophilia, and pseudomonas putida. The highest level of desulfurization was 73.5% at 40 ℃ by stenotrophomonas maltophilia. An isolate of Enterococcus faecalis, which has not been widely explored for its sulfur removal potential could remove 61% sulfur from crude oil and is worth further research.https://jchpe.ut.ac.ir/article_97510_18c56594d10f50678642ebba40660f9b.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201An Investigation On The Enhanced Oil Recovery Performance Of Local Biopolymers3113249751210.22059/jchpe.2024.372867.1486ENChukwuebuka FrancisDikeDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, Nigeria.0009-0007-5688-5513Nkemakolam ChineduIzuwaDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, NigeriaAnthonyKerunwaDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, Nigeria.OnyebuchiNwanweDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, Nigeria.Nzenwa DanEnyiokoDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, Nigeria.BonifaceObahDepartment of Petroleum Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri, NigeriaJournal Article20240304The introduction of polymers into the reservoir yields favorable mobility ratio between the entrapped crude and injected water to improve sweep efficiency and incremental recovery of the reservoir. Xanthan Gum is the most widely utilized bio-polymer for chemical enhanced oil recovery (CEOR), but the polymer is imported. However, recent studies have shown the potentials of local bio-polymers in alternating conventional polymer in CEOR. This have attracted serious interest due to their availability, low cost and eco-friendly nature. In this paper a comparative CEOR investigation was conducted between conventional and local polymers. Cook Pine Exudate (CPEG), Afzelia Africana (AA) and Terminalia Mantaly Exudate (TMEG) were used as local-polymer while Xanthan Gum (XG) was used conventional polymer. FTIR evaluation, aqueous stability, Viscosity, Adsorption and EOR core-flood study were conducted on the investigation. From the FTIR evaluation CPEG, AA and TMEG can be classified as polysaccharides. From Aqueous Stability test, CPEG, AA and TMEG formed colloidal phase with water. From the viscosity result CPEG, AA and TMEG recorded similar viscosity trend present in XG. From the Adsorption test, increase in concentration increased adsorption rate. From the CEOR study, favorable mobility ratio was achieved at 0.25wt% concentration for all polymers utilized for the study. 0.25wt% CPEG yielded the best recovery of the polymer formulation as it recorded additional 17.65% after secondary recovery, while TMEG, XG and AA recorded additional 16.67% 15% and 14.5% respectively. The study showed that CPEG, AA and TMEG can be used as alternative to XGhttps://jchpe.ut.ac.ir/article_97512_ba9bb11ae3c6fd4880ae6bbe52762914.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Synthesis, Characterization and Adsorption Properties of the New Chitosan/Natural Zeolite Composite for the Nitrate Removal from Aqueous Solution3253459855310.22059/jchpe.2024.347591.1405ENToktamShenavaei -ZareDepartment of Chemical Engineering, Faculty of Petroleum and Petrochemical Engineering, Hakim Sabzevari University, Sabzevar, Iran.Zahra-BeagomMokhtari-HosseiniDepartment of Chemical Engineering, Faculty of Petroleum and Petrochemical Engineering, Hakim Sabzevari University, Sabzevar, Iran.Journal Article20220824High concentrations of nitrates in water can have several effects on human and aquatic health, therefore, control levels of nitrates are essential. In this work, the adsorption of nitrate on beads of chitosan and zeolite composites was investigated. According to Transmission Electron Microscopy results, the employed zeolite has clinoptilolite and calcite with 50-870 nm particle size. The association between chitosan and zeolite was also verified by chemical and morphological characterizations. Results showed chitosan/acid-modified natural zeolite composite beads (Ch/AMZ) exhibited higher nitrate adsorption than other ones. The nitrate adsorption on Ch/AMZ as a function of pH, contact time, and bead concentration was optimized by a response surface method using batch experiments. According to the results, at the computed optimum operating conditions the maximum nitrate removal efficiency, 98.2% with Ch/AMZ, and adsorption capacity, 22.48 mg g<sup>−1</sup> were obtained. The presented nitrate removal technique with the proposed eco-friendly adsorbent can be considered a critical approach for removing nitrate from drinking water and possibly using it on an industrial scale as a green and economical method for water and wastewater treatment.https://jchpe.ut.ac.ir/article_98553_3c35d62450c1fa828c3922174625eab8.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator3473579853110.22059/jchpe.2024.374035.1493ENPoonehAbachiFaculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran.RezaKhoshbinDepartment of Chemical and Materials Engineering, Buein Zahra Technical University, Buein Zahra, Qazvin, IranRaminKarimzadehFaculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran.Journal Article20240318Silica gel is a solid adsorbent known for its unique property of changing color as it adsorbs moisture. The main component in the production of silica gel is sodium silicate, which can be derived from natural raw materials such as sugarcane bagasse ash, rice husk ash and coconut shell. In this study, sodium silicate was extracted from rice husk ash (RHA), followed by the synthesis of silica gel using the sol-gel method. The resulting silica gel was then colored orange using iron (ⅠⅠⅠ) chloride salt. FE-SEM image showed a homogeneous distribution of particle size and color on the surface of the silica gel. The BET surface area of orange silica gels synthesized from commercial sodium silicate and RHA (Aging time = 24 hours) was found to be 248.6 and 179.86 m2/gr, respectively but the high Smeso/Smicro in silica gel from rice husk ash contributes to its suitable moisture adsorption capacity compared to silica gel from industrial sodium silicate.https://jchpe.ut.ac.ir/article_98531_389f42da3c3d2b424298d39a87619ac2.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Kinetics Study of Oxidative Desulfurization of Real Diesel Fuel Over Uncoated and Coated Nano-catalysts in an Oscillatory Helical Baffled Reactor3593749855410.22059/jchpe.2024.377539.1522ENAmerNawafCollege of Petroleum Process Engineering, Tikrit University, Iraq.BasmaAbdul MajeedDepartment of chemical engineering, College of engineering, University of Baghdad, Baghdad, Iraq.Journal Article20240604The oxidative desulfurization (ODS) of real diesel fuel (RDF) was evaluated in a modified design oscillatory helical baffled reactor (OHBR). Peracetic acid was produced from hydrogen peroxide and acetic acid and used as an oxidant. Following that, a new design was made using nano-catalyst (uncoated and coated). The experimental work of the oxidative desulfurization process was utilized in an oscillatory helical baffled reactor under moderate conditions: residence times 3-9 min, oxidation temperatures 50-80 ℃, amplitude of oscillation 2-8 mm, and frequency of oscillation 0.5-2 min with 0.4 g of nano-catalyst with constant pressure. The optimal conversion of sulfur was 98.42% for the uncoated catalyst and 96.57% for the coated catalyst under 80 ℃, 8 mm, and 2.5 Hz. The purpose of this manuscript is to determine the ODS kinetic parameters and sulfur compound concentration profile in RDF. The model developed was according to the properties of the real diesel fuel, types of nano-catalysts, and operation conditions inside the OHBR based on the experimental observations. The optimal kinetic model and the half-life period of the nano-composites for the pertinent reactions have also been examined. This study also estimates the best kinetic model parameters of the oxidation reactions using the pseudo-first-order technique, which is based on the experimental data.https://jchpe.ut.ac.ir/article_98554_d82eea5c137d17565ec392875331b633.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Modification of activated carbon prepared from black liquor with the copper ion and its application to adsorption phenol3753899811710.22059/jchpe.2024.378324.1529ENAmirMohammadpourDepartment of Wood and Paper Science and Industry, Faculty of Natural Sciences, University of Tehran, Tehran, Iran.AhmadHallajisaniCaspian faculty of Engineering, College of Engineering, University of Tehran, Karaj, Iran.MohammadAzadfallahDepartment of Wood and Paper Science and Industry, Faculty of Natural Sciences, University of Tehran, Karaj, Iran.YahyaHamzehDepartment of Wood and Paper Science and Industry, Faculty of Natural Sciences, University of Tehran, Karaj, Iran.Journal Article20240620The growing demand for effective and environmentally friendly phenol removal methods has led to a growing interest in investigating the potential of using biomass-derived activated carbon. This research investigated the absorption process of phenol from wastewater using activated carbon adsorbents and activated carbon modified with copper in a batch system. Activated carbon was obtained from paper mill black liquor. The pore structure and morphology of unmodified and modified samples were investigated by BET and SEM. Modifying activated carbon with copper increased the specific surface area from 283.2 to 517.5 m2/g. The inhomogeneity in the modified AC absorbent surface is less compared to AC, and it also has a more regular surface in terms of particle size uniformity. The ability of prepared adsorbents to remove phenol in aqueous medium was evaluated by examining the effects of parameters such as adsorbent amount, pH, solution concentration, contact time, temperature effect. Based on the results, it was found that AC/Cu shows the highest adsorption rate after coming in contact with phenol solution with a concentration of 100 ppm for one hour at an optimal pH of 8. The adsorption of phenol by AC/Cu is consistent with the pseudo-second-order kinetic model. The absorption of phenol by the modified AC depends on the temperature and is an endothermic process. The increase in the amount of phenol removal with increasing temperature is more in AC/Cu. The study of the adsorbent saturation in the column system showed that AC/Cu is able to absorb more than 95% of the phenol solution with a concentration of 100 ppm up to a volume of 2700 mL. The findings of this study provide valuable insights into the field and pave the way for further research in the future.https://jchpe.ut.ac.ir/article_98117_343a111ab5bed65ac30fa2664d569d25.pdfUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X58220241201Numerical Study of Sodium Bicarbonate Production in Industrial Bubble Columns3914069853210.22059/jchpe.2024.379711.1545ENJasimHumadiBaghdad, Iraq.EkehwanhRasheedDepartment of Chemical Engineering, Tikrit University, Tikrit, Iraq.Journal Article20240721The purpose of this study is to explore the physio-chemical factors that affect sodium bicarbonate synthesis in industrial bubble columns employing CFD simulations. The model represents gas-liquid-solid systems and introduces turbulent phenomena and chemical reactions into the model. Parameter optimizations are performed to analyze the operational parameters such as gas flow rate, liquid phase characteristics, column geometry, and reaction kinetics. This study demonstrates a better understanding of the optimal reaction conditions for maximum NaHCO3 yielding, fast enough kinetic reaction, and less undesired byproduct formation, as well as introducing productive and environmentally friendly approaches to synthesizing chemical products. The broader width of the column increases turbulent mass diffusivity, but decreases turbulent viscosity. With a broader column width, column pH gradient decreases, due to the increased liquid amount. The concentration of the solutions falls, as the width of the column decreases. For the height of 107 mm, the concentration is 95 mmol/L; this value is 82 mmol/L for the height of 200 mm. Supersaturation increases with column height. For a height of 200 mm, the supersaturation is equal to 0.015. The molar proportion of carbon dioxide in gas is a function of column height, thus 35% at 200 mm and 20% at the air end.https://jchpe.ut.ac.ir/article_98532_f37b0e2971ef94a9928d2eb17bb1bf4c.pdf