Mohamed A. Abd El-Moniem , Noura Sudan , Ahmed H. El-Banbi
{"title":"Comprehensive investigation and evaluation for the different multiphase flow correlations in gas wells","authors":"Mohamed A. Abd El-Moniem , Noura Sudan , Ahmed H. El-Banbi","doi":"10.1016/j.ejpe.2022.06.003","DOIUrl":"10.1016/j.ejpe.2022.06.003","url":null,"abstract":"<div><p>Gas production represents an important source of energy used in different industries. Accurate production forecast of gas wells helps in decision making and maximizing reserves.</p><p>Petroleum engineers model existing conditions of the fluid flow to help them in predicting wells’ future performance. The modeling of single-phase flow is considered the simplest case, but considering multiphase flow (oil, gas, and water) makes it more challenging.</p><p>We studied and evaluated the different multiphase flow correlations using two commercial software (A and B). A database of 537 bottom hole flowing pressure data points was used which covered 33 different flowing, well geometry, and tubing diameter conditions. 14 correlations were used from Software “A” and 26 correlations were used from Software “B” to calculate the pressure drop in the tubing for each case. The target was to determine the best correlation(s) for each case and establish guidelines to help petroleum engineers in selecting the best correlation when actual bottom-hole flowing pressure data is unavailable. We could determine the expected average percent error (APE) and average absolute percent error (AAPE) for each correlation for different flow conditions. Also, for different conditions, we calculated the different statistical parameters for the calculated pressure from each correlation including normalized root mean square error (NRMSE), coefficient of determination (R<sup>2</sup>), and the standard deviation (STD). We also created a map to show which software will give the lowest error for the different flow and well parameters. Then, a validation database was used to confirm the previously determined results using a new set of data. The results were validated with a percentage of 91% for Software “A” and 89% for Software “B”.</p><p>For both software programs, Gray’s correlation was found to be the best correlation for the entire database. It gives AAPE of 5.73% and 9.72% for software A and B, respectively.</p><p>This paper will help petroleum engineers select the best multiphase flow correlation(s) in different flow and well conditions. Also, it will give them guidance for the critical conditions which give a wide range of the calculated pressure drop using the different multiphase flow correlations.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 3","pages":"Pages 21-29"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000435/pdfft?md5=b3394f9aee124d02b2258325af6e0a5d&pid=1-s2.0-S1110062122000435-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42126224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nurul Waheeda binti Abdu Rahman, Mohd Aizudin bin Abd Aziz
{"title":"The effects of additives on anti-wear properties of lubricating grease formulated from waste engine oil","authors":"Nurul Waheeda binti Abdu Rahman, Mohd Aizudin bin Abd Aziz","doi":"10.1016/j.ejpe.2022.07.002","DOIUrl":"10.1016/j.ejpe.2022.07.002","url":null,"abstract":"<div><p>The goal of this study was to study the anti-wear properties of grease formulated from waste engine oil (WEO) when additives are added. There were two types of grease formulated namely sodium and fumed silica (FS) greases. The greases were formulated using a weight percentage ratio with and without the addition of additives before the attributes of consistency, FTIR (Fourier transform infrared spectroscopy), and anti-wear analysis were conducted. Results showed that the addition of additives did not affect the properties of the formulated grease except for that of sodium grease as demonstrated by the FTIR result. Sodium grease produced a spectrum with a peak in the region < 600 cm<sup>−1</sup> when analyzed using FTIR. The corrosiveness of the grease toward the copper strip was also low, as determined by class 1 corrosiveness. The addition of additives resulted in no improvement in the anti-wear properties of the grease as the coefficient of friction (COF) was low for the grease without additives than for the grease with additives. However, the addition of additives can reduce the wear scar diameter of the greases. Based on the findings of this investigation, it was found that the addition of additives did not alter the properties of the greases or improve the anti-wear properties of the greases except for the wear scar diameter.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 3","pages":"Pages 71-76"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000496/pdfft?md5=de76db88d0a05109089deccbfb6c37ef&pid=1-s2.0-S1110062122000496-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43959335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohamed A. Salem, Ibrahim A. Salem, Hossam M. Zaki, Abdelhamid M. El-Sawy
{"title":"Elimination of Safranin-O and a binary mixture of Safranin-O and methylene blue from water by adsorption on magnetite/Ag nanocomposite","authors":"Mohamed A. Salem, Ibrahim A. Salem, Hossam M. Zaki, Abdelhamid M. El-Sawy","doi":"10.1016/j.ejpe.2022.05.002","DOIUrl":"10.1016/j.ejpe.2022.05.002","url":null,"abstract":"<div><p>The present research aimed at the removal of Safranin-O (Saf-O) dye and a binary mixture of Saf-O and methylene blue (MB) from an aqueous solution by adsorption onto the surface of magnetite/Ag nanocomposite to find a feasible and an effective route for cleaning the wastewater from these dyes. The nanocomposite was synthesized by the co-precipitation method in the presence of nanosilver which in turn was prepared by the reduction of Ag<sup>+</sup> by sodium citrate. The nanocomposite was characterized by FT-IR, XRD, SEM, EDX, and TEM techniques. The adsorption of the single Saf-O and its binary mixture with MB was studied under the effect of several experimental conditions. These conditions were the initial concentration of dyes, nanocomposite dose, Ag to magnetite ratio, pH of the medium, presence of salt, time of contact, and solution temperature. The adsorption process followed pseudo-second-order kinetics The Langmuir and Freundlich adsorption isotherms were applied and the data were best fitted with the Langmuir model confirming monolayer adsorption of dyes. The maximum adsorption capacity was 46.3 mg/g for the single Saf-O and (38.46 + 34.97) for the (Saf-O + MB) binary mixture at 30 °C. The adsorption process was spontaneous and endothermic. The recyclability of the magnetite/Ag nanocomposite was confirmed through five reusable cycles where it can be considered a promising adsorbent for wastewater treatment from dyes.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 39-49"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000216/pdfft?md5=db73b46aa5819c1cd2414a762f670912&pid=1-s2.0-S1110062122000216-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42242296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kamran Hassani, Behzad Rostami, Alireza Fathollahi, Ali Saeibehrouzi
{"title":"Soaking time effect on low salinity water injection in sandstone reservoirs: Wettability, SEM, relative permeability, and waterflooding studies","authors":"Kamran Hassani, Behzad Rostami, Alireza Fathollahi, Ali Saeibehrouzi","doi":"10.1016/j.ejpe.2022.04.003","DOIUrl":"https://doi.org/10.1016/j.ejpe.2022.04.003","url":null,"abstract":"<div><p>This study used core and thin section analysis to investigate the time of soaking and factors that affect the mechanisms presented in the low salinity water (LSW) process. Applying a new injection plan, waterflood tests were conducted to enhance oil recovery (EOR) using the effects of soaking time. Additionally, monitoring of pressure data and scanning electron microscopy (SEM) analysis during the test were examined to investigate the fine movement. The results show that the mechanisms related to it are completely time-dependent. Changes in wettability can be defined in the concept of ion exchange. The fine migration mechanism was observed in the LSW process, but its direct impact on the EOR is under discussion.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 23-29"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000198/pdfft?md5=6ee39fd02c8ac02a4755e808993553ca&pid=1-s2.0-S1110062122000198-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136821116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental and theoretical investigation of a new triazole derivative for the corrosion inhibition of carbon steel in acid medium","authors":"N. Phadke Swathi , Seranthimata Samshuddin , Aeshah Hassan Alamri , Kedila Rasheeda , Vijaya D.P. Alva , Talal A. Aljohani","doi":"10.1016/j.ejpe.2022.04.002","DOIUrl":"https://doi.org/10.1016/j.ejpe.2022.04.002","url":null,"abstract":"<div><p>A new triazole derivative, (<em>E</em>)-4-(4-(dimethylamino)benzylideneamino)-5-(pyridin-4-yl)-2<em>H</em>-1,2,4-triazole-3(4<em>H</em>)-thione (DPT), was synthesized and characterized using spectral data. The electrochemical experimental techniques were utilized to evaluate the inhibition efficiency (IE) of DPT for the corrosion of C1018 carbon steel. The studies revealed that, DPT is highly efficient with IE value 90% at 250 ppm. Further, the addition of DPT resulted in the decrease of cathodic as well as anodic current densities which is the indication of mixed-type inhibition. Also, the studies inferred the Langmuir model for DPT-metal adsorption. The surface morphological studies of C1018 carbon steel with and without DPT was investigated using SEM, EDX, and XPS, which indicated the strong adsorption of metal-DPT. Monte-Carlo simulation and Density functional theory approaches had been employed for correlating the structure of DPT and its corrosion inhibition ability. The high IE values of DPT observed in experimental studies were in agreement with the theoretical studies, and hence DPT acts as good inhibitor for the corrosion of C1018 steel.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 15-21"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000186/pdfft?md5=772749722084a4889f3f0cf10db123b3&pid=1-s2.0-S1110062122000186-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136821117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdolah Golkari , Masoud Riazi , Farid B. Cortés , Camilo A. Franco
{"title":"Experimental investigation of interfacial tension and oil swelling for asphaltenic crude oil/carbonated water system","authors":"Abdolah Golkari , Masoud Riazi , Farid B. Cortés , Camilo A. Franco","doi":"10.1016/j.ejpe.2022.04.001","DOIUrl":"10.1016/j.ejpe.2022.04.001","url":null,"abstract":"<div><p>The phenomenon of oil swelling at the oil-carbonated water (CW) system could be an important mechanism during the water alternating gas (WAG) injection process. Nevertheless, the study of the main mechanisms during water flooding (WF) is a complex topic that has not been well revealed so far, especially for asphaltenic crude oil (ACO) systems. Hence, the main goal of this experimental work is to determine the influence of carbon dioxide (CO<sub>2</sub>) within the water phase in the interfacial tension (IFT) between water and crude oil for an extensive range of pressures between 400 psi and 2000 psi (i.e. 2.76–13.79 MPa), under two temperatures of 313.15 and 323.15 K (i.e. 40 and 50 °C) by axisymmetric drop shape analysis (ADSA) method. The experimental results demonstrate that the water/ CW and crude oil IFTs decline with time. The value of dynamic IFT (DIFT) between CW and crude oil decreased about 6 mN/m in comparison with the oil–water DIFT. As a result of the CO<sub>2</sub> solubility, the crude oil droplet swells with increasing pressure. When the temperature rises, the effects of increasing entropy phenomena and decline of liquids density is dominant compared to the solubility of CO<sub>2</sub>. Thus, the volume of oil droplet increases with temperature, unexpectedly. In addition, as thetemperature increases the water/CW-Oil IFT is slightly reduced over a wide range of pressure evaluated. Nevertheless, there is a slight increase as the pressure increases for the water–oil system. According to the predicted results, interfacial tension of the CW-oil system declines with increasing pressure until the solubility of CO<sub>2</sub> is reached to a maximum value and then approximately remains changeless.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 51-58"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000174/pdfft?md5=4e0efd34af0af5b402a5abfaf0710630&pid=1-s2.0-S1110062122000174-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45997618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M.S. Negi, K. Naresh Kumar, Anil Bhardwaj, G.S. Kapur, S.S.V. Ramakumar
{"title":"Prediction of thickening efficiency of olefin copolymers and kinematic viscosities of the blended base oils by determining intrinsic viscosities of the copolymers in cyclohexane","authors":"M.S. Negi, K. Naresh Kumar, Anil Bhardwaj, G.S. Kapur, S.S.V. Ramakumar","doi":"10.1016/j.ejpe.2022.02.003","DOIUrl":"10.1016/j.ejpe.2022.02.003","url":null,"abstract":"<div><p>The engine oil contains various performance additives along with polymer-based viscosity index improver, which are made from special types of flexible long chain polymers whose functionality is derived from their thickening efficiency, viscosity-temperature relationship, and shear stability. Olefin copolymers of the type ethylene/propylene copolymer are extensively used as viscosity index improver for engine oil formulations whose performance is a function of their composition, co-monomer sequence distribution and molar mass. Polymer coils interact with base oil and make it increasingly resistant to flow which accounts for substantial changes in viscosity parameters i.e. kinematic viscosities and viscosity index of blended base oils. Intrinsic viscosity of a polymeric solution is an important “dilute solution viscosity” parameter, which is easily measurable using Ubbelohde viscometer.</p><p>In the present work, intrinsic viscosity of twenty samples of laboratory synthesized olefin copolymer in cyclohexane at 30 °C were correlated with their thickening efficiencies, kinematic viscosities of the olefin copolymer blended base oils at 40 °C and 100 °C. These correlation studies enable prediction of performance of olefin copolymer in blended base oil based on an easily and quickly measurable intrinsic viscosity parameter, leading to faster screening of large number of olefin copolymers for their utility as viscosity index improver in lubricants, in a short span of time with limited resources.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 7-14"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000034/pdfft?md5=73fae21d0a9fc088e2b5386d3964c151&pid=1-s2.0-S1110062122000034-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47156795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huda S. El-Sheshtawy , Hesham M. Mahdy , Ahmed R. Sofy , Mahmoud R. Sofy
{"title":"Production of biosurfactant by Bacillus megaterium and its correlation with lipid peroxidation of Lactuca sativa","authors":"Huda S. El-Sheshtawy , Hesham M. Mahdy , Ahmed R. Sofy , Mahmoud R. Sofy","doi":"10.1016/j.ejpe.2022.03.001","DOIUrl":"10.1016/j.ejpe.2022.03.001","url":null,"abstract":"<div><p>The biosurfactant-producing bacterial isolate was isolated from an oil-contaminated water sample. This study aimed to determine the production of biosurfactant and its effect on the plant growth via the biosorption of some heavy metals. The isolate was identified by 16S rRNA gene sequence analysis as <em>Bacillus megaterium</em> ATTC 14581. The surface activity of the produced biosurfactant was determined. The biosurfactant was recovered from the cell-free culture of a bacterial strain at 1.5 g/L. The extracted biosurfactant shows potential stability towards some factors, like temperature and salinity. The FTIR analysis confirmed the production of surfactin biosurfactant. The impact of <em>B. megaterium</em> biosurfactant on Pb and Ar significantly increases morphological features, proline, and antioxidant enzymes, while a significant decrease in lipid peroxidation, H<sub>2</sub>O<sub>2</sub>, and O<sub>2</sub>.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000058/pdfft?md5=35d56867cac14356640936c3f4a41473&pid=1-s2.0-S1110062122000058-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42950905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cordelia U. Dueke‑Eze , Nancy A. Madueke , Nkem B. Iroha , Ngozi J. Maduelosi , Lebe A. Nnanna , Valentine C. Anadebe , Augustine A. Chokor
{"title":"Adsorption and inhibition study of N-(5-methoxy-2-hydroxybenzylidene) isonicotinohydrazide Schiff base on copper corrosion in 3.5% NaCl","authors":"Cordelia U. Dueke‑Eze , Nancy A. Madueke , Nkem B. Iroha , Ngozi J. Maduelosi , Lebe A. Nnanna , Valentine C. Anadebe , Augustine A. Chokor","doi":"10.1016/j.ejpe.2022.05.001","DOIUrl":"10.1016/j.ejpe.2022.05.001","url":null,"abstract":"<div><p>Corrosion inhibition ability of synthesized Schiff base namely, N-(5-methoxy-2-hydroxybenzylidene) isonicotinohydrazide (NMHI) on copper in 3.5% NaCl solution was studied via electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PP) and gravimetric study. Results showed NMHI to inhibit copper corrosion in chloride solution. The inhibition efficiency of NMHI was enhanced with an increase in the concentration but decreases with rising temperature. Maximum value of 97.7% inhibition efficiency was obtained with weight loss measurement at 303 K for the highest NMHI concentration (1 × 10<sup>-3</sup> M) used. Polarization studies indicated that NMHI acted as mixed kind of inhibitor. The Nyquist plot revealed that double-layer capacitance (<em>C<sub>dl</sub></em>) declined and charge-transfer resistance (<em>R<sub>ct</sub></em>) was enhanced with increase in NMHI concentrations, involving increased inhibition efficiency. NMHI adsorption onto the surface of copper obeyed Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was used to characterize the morphology of uninhibited and inhibited copper surfaces.</p></div>","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 2","pages":"Pages 31-37"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000204/pdfft?md5=c59dde64146b0d9b294f89f738ec4a5f&pid=1-s2.0-S1110062122000204-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45077267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Erratum regarding missing Declaration of Competing Interest statements in previously published articles","authors":"","doi":"10.1016/j.ejpe.2022.02.004","DOIUrl":"https://doi.org/10.1016/j.ejpe.2022.02.004","url":null,"abstract":"","PeriodicalId":11625,"journal":{"name":"Egyptian Journal of Petroleum","volume":"31 1","pages":"Page 39"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1110062122000046/pdfft?md5=990a6ad887fb3a5e1946a6703c8b1d4a&pid=1-s2.0-S1110062122000046-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137266212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}