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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Sufian, A. Sidek, M.A. Jaafar, M.Z. Ridzuan, N. Mahat, S.Q.A. Nwaichi, P.I. Ngouangna, E. Yakasai, F. Abbas, A.H. Gbonhinbor, J. Agi, A. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Institute for Oil and Gas IFOG Universiti Technology Malaysia Johor Bahru Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano PMB Nigeria School of Mining and Geosciences Nazarbayev University Astana Kazakhstan Department of Petroleum Engineering Niger Delta University Wilberforce Island Amassoma Yenagoa Nigeria Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia

ISBN: (纸本)9781959025474

Carbonate reservoirs hold a significant portion of the world's hydrocarbon resources. However, carbonate reservoirs pose a significant challenge in determining reservoir permeability utilizing standard evaluation techniques. Hence, to correctly estimate the permeability of the carbonate reservoir, an evaluation method that includes pore size distribution information is required. Therefore, the primary aim of this study was to improve permeability estimation by incorporating pore size distribution-sensitive measurements into the conventional carbonate evaluation workflow in Astaka carbonate build-up. Herein standard resolution log data with pore size distribution sensitive log data was integrated and augmented by carbonate pore size distribution information from borehole resistivity images utilizing a porosity partitioning method. Thereafter, the porosity partitioning, and permeability analysis results were validated by comparing the calculated permeability with permeability data from modular formation dynamics tester (MDT) permeability. The results showed a good correlation between carbonate permeability and MDT permeability. Hence, the porosity partitioning method improved the permeability estimation in Well B, and a Pickett plot over the water zone provided the value of 0.097 at 102 °C for the formation water resistivity. As a result, the improved workflow offered a more accurate permeability estimation for Astaka carbonate than the conventional approach, which makes the assumption that porosity is inversely proportional to permeability. Therefore, it can be concluded that the improved carbonate evaluation workflow can provide a more reliable and accurate permeability estimate as compared to the conventional evaluation workflow for carbonate reservoirs. Copyright © 2024, Society of Petroleum Engineers.

关键词： Pore size

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Role of Compatibilization of Phthalic Acid in Cassava Starch/Poly Vinyl Alcohol Thin Films 12th

Role of Compatibilization of Phthalic Acid in Cassava Starch...

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12th International Conference on Structural engineering and Construction Management, ICSECM 2021

作者： Gunawardene, O.H.P. Amaraweera, S.M. Wannikayaka, W.M.D.B. Fernando, N.M.L. Gunathilake, C.A. Manamperi, W.A. Kulatunga, A.K. Manipura, A. Department of Chemical and Process Engineering Faculty of Engineering University of Peradeniya Peradeniya Sri Lanka Department of Manufacturing and Industrial Engineering Faculty of Engineering University of Peradeniya Peradeniya Sri Lanka Department of Nano Science Technology Faculty of Technology Wayamba University of Sri Lanka Kuliyapitiya Sri Lanka Materials Engineering Department California Polytechnic State University San Luis Obispo United States

ISBN: (纸本)9789811928857

Owing to rapid industrialization and urban development across the globe, the usage of non-degradable petroleum-based plastic materials has been drastically increased leading to accumulation of inert plastic waste which takes billions of years to naturally degrade. Therefore, this work focuses on producing and evaluating "green" multifunctional film materials based on a mixed eco-friendly thermoplastic starch (TPS)/polyvinyl alcohol (PVA) matrix compatibilized with phthalic acid. In this study, the blend films of gelatinized TPS/PVA thin films were prepared by means of solution casting. Fourier transform infrared spectroscopy (FTIR) was used to evaluate the structure of the films while the dynamic mechanical analysis (DMA) and thermogravimetric analyzer (TGA) were used to examine the thermal behavior. The tensile, water absorption, and the biodegradability tests were carried out according to ASTM-D-882-02, ASTM-D-570-98, and aerobic compost environment test, respectively. Compatibilized blends exhibited enhanced thermal stability and homogeneity forming new hydrogen bonds in the presence of phthalic acid while possessing a dense molecular network. Moreover, the biodegradation was slowed by the incorporation of phthalic acid while the least water absorption capacity was demonstrated by the TPS/PVA (40/60 % w/w) blend compatibilized with 5 wt% phthalic acid (T4P6-5) valuing 43.8%, and 55.2% at 2 h and 24 h, respectively. Besides, improved mechanical properties could be obtained by T4P6-5 blended film valuing 30.2 MPa and 221.6% for tensile strength and elongation at break, respectively. Therefore, enhanced mechanical and thermal properties, lower water absorption, non-toxicity, and low cost make the compatibilized cassava starch/PVA films beneficial for potential food packaging applications. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Fourier transform infrared spectroscopy

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Photodegradation of 2-chlorophenol over ZnO/KCC-1: Reaction optimization by response surface methodology

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Materials Today: Proceedings 2023年 107卷 1-7页

作者： Mohd Zaki, R.S.R. Lim, X.R. Setiabudi, H.D. Jaafar, N.F. Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Kuantan Pahang Malaysia Centre for Research in Advanced Fluid and Processes Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Kuantan Pahang Malaysia School of Chemical Sciences Universiti Sains Malaysia 11800 USM Penang Penang Malaysia

Removing 2-chlorophenol (2CP) from water is an imperative task due to its toxicity. Various methods have been introduced for 2CP removal, and photocatalytic degradation is one of the best alternative solutions due to its effectiveness and simple process. This study focused on the potential of ZnO/KCC-1 as an effective photocatalyst for 2CP elimination from aqueous solutions. ZnO/KCC-1 was prepared by impregnating a commercial ZnO precursor into the synthesized KCC-1. The Zn/KCC-1 was characterized using TEM, FESEM, XRD, FTIR, and PL. The TEM and FESEM analyses confirmed the catalyst's fibrous structure with good ZnO dispersion. The XRD results demonstrated the amorphous silica structure with the presence of ZnO, while the FTIR analysis confirmed the formation of a strong Si-O-Zn bond. The PL analysis revealed a slower recombination rate of electrons and holes during the reaction, thus enhancing the degradation rate efficiently. The analysis via response surface methodology (RSM) over independent variables of initial concentration (X1), catalyst dosage (X2), and pH (X3) revealed that X2 was the most essential variable, while X1 was the least significant variable. The ideal parameter for 2CP degradation was achieved at X1 = 10 mg/L, X2 = 2 g/L, and X3 = 10 with photodegradation efficiency (Y) of 90.62 % (predicted) and 88.93 % (experimental). This research revealed that ZnO/KCC-1 had a great prospect for photocatalytic degradation of 2CP from an aqueous solution. © 2023 Elsevier Ltd. All rights reserved.

关键词： Zinc oxide

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Assessing the recovery of dodecanol from alkyl polyglycosides (APG) using solvent extraction

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Materials Today: Proceedings 2024年 107卷 187-192页

作者： Zulkifly Jemaat Mahadhir Muhammad Hairul Nizam Abdul Rani Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia

Dodecanol, known as lauryl alcohol, is commonly used in the production of alkylpolyglycosides (APG) by reacting dextrose with an excess of dodecanol in the presence of an acid catalyst. After the reaction is completed, the challenging part is the purification step, to separate unreacted dodecanol from APG to ensure the final product meets an industrial specification requiring less than 5% of the dodecanol residue. Current separation methods i.e., evaporation and distillation, require high energy and could deteriorate the product quality if it is not operated carefully. In this research, the extraction process was evaluated to separate the unreacted dodecanol without compromising the quality of the final product. The study investigates the effect of the solvent matrix, temperature and stirring speed for the extraction of dodecanol using a mixture of water with ethanol, propanol or toluene as a solvent matrix. The composition ratio of sample: solvent: water was fixed at 10:10:10 (in mL). The extraction temperature was manipulated between 60 °C and 80 °C and stirring speed was at 5 and 7 rpm. In addition, the extraction was also subjected to the ultrasonic frequency set at 9 Hz for 30 min and using toluene as a matrix solvent. Results show that higher extraction yield was obtained at low temperatures and stirring speed. By using a solvent matrix-toluene leads to the highest extraction yield of 15.02 w/w%. Applying ultrasonic during the extraction process increased the extraction yield to 32 w/w%, indicating that the ultrasonic has intensified the extraction process. In conclusion, the excess of dodecanol in the APG sample could be separated via an extraction process. This potential method allows an alternative separation technique at a low investment cost, energy saving and eventually meeting the APG’s product specifications requirement. [copyright information to be updated in production process]

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Effect of Temperature and Particle Exposure on Hydroxyapatite Nanoparticles on Wettability Alteration of Oil-Wet Sandstone

Effect of Temperature and Particle Exposure on Hydroxyapatit...

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2023 SPE Nigeria Annual International Conference and Exhibition, NAIC 2023

作者： Ngouangna, E. Jaafar, M.Z. Anam, M.N. Agi, A. Gbonhinbor, J. Ridzuan, N. Mahat, S.Q.A. Yakassai, F. Oseh, J. Al-Ani, M. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Malaysia Institute for Oil and Gas IFOG Universiti Teknologi Malaysia Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Gambang Pahang Malaysia Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Gambang Pahang Malaysia Department of Petroleum Engineering Faculty of Engineering Niger Delta University Wilberforce Island Bayelsa State Nigeria Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano State Kano Nigeria

ISBN: (纸本)9781959025177

Nanofluid treatment is being developed to improve oil recovery and reduce residual oil entrapment in sandstone reservoirs. Nanoparticles for enhanced oil recovery (EOR) at ambient conditions have shown good potential in recent research. The efficiency on EOR has been found to be significantly influenced by nanofluid composition, exposure and time. However, there is a serious lack of knowledge regarding the influence of temperature on nanofluid performance. The effects of temperature, exposure, time, and particle size of hydroxyapatite nanoparticles (HAP) on the wettability alteration of an oil-wet sandstone were thoroughly investigated, and the stability of the nanofluids was equally examined. At higher temperatures, it was discovered that nanofluid treatment is more effective, with nanoparticle size having little or no influence. The sandstone surface mechanically absorbed most nanoparticles in an irreversible manner. The HAP nanofluid was still effective at high temperature reservoir condition and is herein proposed. Copyright © 2023 Society of Petroleum Engineers.

关键词： Wetting

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The Effect of Low Salinity Flooding of Silica Nanoparticles Functionalizedwith (3 Aminopropyl) Triethoxysilane on Enhanced Oil Recovery

The Effect of Low Salinity Flooding of Silica Nanoparticles ...

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2023 SPE Nigeria Annual International Conference and Exhibition, NAIC 2023

ISBN: (纸本)9781959025177

Silica nanoparticles (SNPs) have been widely employed in the oil and gas industry for drilling, wellcementing, workover procedures, wastewater cleanup, and oil production. Due to their 1 to 100 nm particlesizes, large specific surface area, high dispersibility, and variable physico-chemical properties, they canchange the wettability of reservoir rock and reduce interfacial tension between crude oil and low salinitybrine phases. Functionalized SNPs has not been well-studied in amine-based oil recovery. This workfunctionalized the surface of SNPs with (3-aminopropyl) triethoxysilane (APTES) to improve dispersionstability, change the wettability of sandstone, lower the IFT between oil and water, displace oil in a sand packflooding setup at low salinity and ambient temperature conditions. FTIR identified functional groups, whichvalidated functionalization by changing surface morphology. EDX validated the elemental composition withadded nitrogen and carbon. Zeta potential confirmed stability. Analysis increased from -16 mV to +36.4 mV,and contact angle changed from 46.4° to 115.5°. the critical micelle concentration (CMC) of 1.0 %wt wasachieved at IFT of 8.5mN/m and 76% of the oil was recovered after flooding with APTES-SNF. APTES deposited its molecules on the negatively charged hydroxyl (-OH) groups of SNPs, causing electrostaticattraction forces. This increases oil recovery by stabilizing dispersion. Copyright © 2023 Society of Petroleum Engineers.

关键词： Wetting

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Application of Lignin Polymeric Nanofluid as a chemical Enhanced Oil Recovery Agent at Reservoir Condition

Application of Lignin Polymeric Nanofluid as a Chemical Enha...

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2023 SPE Nigeria Annual International Conference and Exhibition, NAIC 2023

作者： Al-Ani, M. Sidek, M.A. Jaafar, M.Z. Agi, A. Gbonhinbor, J. Ridzuan, N. Mahat, S.Q.A. Yakassai, F. Ngouangna, E. Oseh, J. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Malaysia Institute for Oil and Gas Universiti Teknologi Malaysia Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Gambang Pahang Malaysia Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Gambang Pahang Malaysia Department of Petroleum Engineering Faculty of Engineering Niger Delta University Wilberforce Island Bayelsa State Nigeria Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano State Kano Nigeria

ISBN: (纸本)9781959025177

Surfactant flooding constitutes part of the relevant enhanced oil recovery (EOR) technologies desirable for Malaysian oilfields. However, the high cost of synthetic surfactant production, high toxicity, susceptibility to high salinity reservoir condition, high adsorption rate and the strict regulation laid by government agencies in different countries has limited the growth of synthetic surfactant market in the post Covid-19 era. To solve this problem, the non-petroleum-based (biomass) surfactant can be used to replace the petroleum-based surfactant. Therefore, in this study lignin polymeric nanofluid (LPNF) was synthesized from sago bark using the method of ultrasonic assisted nanoprecipitation for EOR application. Besides, the surface morphology, functional groups, purity, structure and thermal stability of the lignin nanoparticles was determined using transmission electron microscopy, Fourier transform infrared spectroscopy, high pressure liquid chromatography, nuclear magnetic resonance and thermogravimetric analysis, respectively. The interfacial tension (IFT) of the formulated LPNF at oil-water interface was determined via a Kruss tensiometer. Thereafter, the ability of LPNF to alter the wettability of oil wet sandstone core was determined using a drop shape analyzer. TEM results indicate that lignin nanoparticles of size range 10-23 nm were produced. The zeta potential of -34 mV shows long-term stability of the nanofluid. The LPNF altered the wettability of the sandstone core from oil wet (133.3°) to water wet (10.2°), decreased IFT thereby indicating high propensity to increasing oil recovery at reservoir condition. Copyright © 2023 Society of Petroleum Engineers.

关键词： Nanoparticles

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Influence of Surface Modification on the Interfacial Tension Reduction and Wettability Alteration of Iron Oxide Nanoparticles Under Reservoir Conditions

Influence of Surface Modification on the Interfacial Tension...

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2023 SPE Nigeria Annual International Conference and Exhibition, NAIC 2023

作者： Yakassai, F. Jaafar, M.Z. Sidek, M.A. Agi, A. Gbonhinbor, J. Ridzuan, N. Mahat, S.Q.A. Ngouangna, E. Oseh, J. Al-Ani, M. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Malaysia Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano State Kano Nigeria Institute for Oil and Gas IFOG Universiti Teknologi Malaysia Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Gambang Pahang Malaysia Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Gambang Pahang Malaysia Department of Petroleum Engineering Faculty of Engineering Niger Delta University Wilberforce Island Bayelsa State Nigeria

ISBN: (纸本)9781959025177

Iron oxide nanoparticles (IONPs) are at the forefront of advanced materials considered for enhanced oil recovery (EOR), due to their unique physicochemical properties. However, the major drawback is that IONPs quickly agglomerate to diminish their high surface energy, particularly in reservoir brine. Hence, losing their stability and beneficial characteristics which have a negative impact on oil recovery. In this study, these challenges have been circumvented by the functionalization of IONPs with 3-aminopropyltriethyloxysilane (APTES) and tetraethyl orthosilicate (TEOS). Herein, co-precipitation synthesis of bare IONPs and post-synthesis grafting of APTES (AIONPs) and TEOS (SIONPs) were carried out in the laboratory. Synthesis and functionalization were confirmed by examining the physical and chemical properties of the nanomaterials (NMs) using high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) analysis. The stability of the nanofluids (NFs) was examined using zetapotential and sedimentation analysis in the presence of reservoir brine (25,000ppm NaCl). The ability of the NFs to decrease interfacial tension (IFT) and alter the wettability of rock/fluid at reservoir conditions was examined using a K20 Easy Dyne Kruss tensiometer and Kruss drop shape analyzer, respectively. Based on the results, it was found that reservoir brine, decreased the electrostatic stability of IONFs, AIONFs, and SIONFs by 75.9%, 41.3%, and 68% respectively. The IFT reduction and wettability changes relative to the reference values of 25.53 ± 1.51 mN/m and 128 ± 3.4° at reservoir conditions were 11.6mN/m and 26° for IONFs, 7.7mN/m & 22.2° for AIONFs and 8.2mN/m & 15.5° for SIONFs. These findings contribute towards understanding the influence of functionalization on the oil recovery mechanism of IONPs under reservoir conditions. Copyright © 2023 Society of Petroleum Engine

关键词： Iron oxides

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Molecular Dynamic Prognosis for Ti-C10H16N2O8 Filter Cake Decomposition

Molecular Dynamic Prognosis for Ti-C10H16N2O8 Filter Cake De...

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2024 SPE Caspian Technical Conference and Exhibition, CTC 2024

作者： Irawan, S. Wayo, D.D.K. Bayramov, E. Fathaddin, M.T. Goliatt, L. Department of Petroleum Engineering School of Mining and Geosciences Nazarbayev University Kazakhstan Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Malaysia Department of Petroleum Engineering Universitas Trisakti Jakarta Indonesia Faculty of Department of Computational and Applied Mechanics Federal University of Juiz de Fora Juiz de Fora Brazil

ISBN: (纸本)9781959025634

Chelating agents such as Ethylene-Diamine-Tetra-Acetic (EDTA) had been suggested to be a newly designed biodegradable filter cake breakers that could enhance efficiency in filter cake removal. This chelate-based fluid had been proven to effectively dissolved the bridging agent in the filter cake which was calcium carbonate causing the removal of the filter cake to be successful. Besides that, the ability of the chelating agents to provide low corrosion potential made chelating agent as a great alternative for live mineral acids. This provided less aquatic toxicity, more human and environment friendly and readily. However, traditional EDTA cannot performance well in the high-pressure, high-temperature (HPHT) wellbore environments. Therefore, in this study, we explore the use of Titanium-enhanced ethylenediaminetetraacetic acid (Ti-EDTA) as a novel chemical breaker for the decomposition of filter cakes formed in high-pressure, high-temperature (HPHT) wellbore environments. Using ab initio molecular dynamics (AIMD) simulations within the Quantum Espresso framework version 7.2, we examine the molecular interactions, atomic displacements, and thermodynamic behavior of Ti-EDTA in contact with synthetic-based mud (SBM) residues. The simulations track the structural evolution of Ti-EDTA during filter cake decomposition, revealing significant molecular rearrangements and enhanced solubility of the filter cakes. Compared to traditional EDTA-based and silica-based breakers, Ti-EDTA shows improved potential energy and particle mobility, indicative of greater decomposition efficiency. Our results indicate that EDTA resulted in a more negative potential energy of −1035 Ry signifying a stable system, whereas Ti-EDTA simulation yielded a less stable system with a value of −935 Ry energy. The atomic interactions at both levels indicated that Ti-EDTA possesses higher temperature by 16000 K and with a coupled higher potential energy makes an effective chemical to enhance decomposition

关键词： Molecular dynamics

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Does Human Factor Contribute to Mining Accidents? A Systematic Literature Review Approach

Does Human Factor Contribute to Mining Accidents? A Systemat...

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Human engineering Symposium, HUMENS 2021

作者： Ismail, Siti Noraishah Ramli, Azizan Faculty of Industrial Sciences and Technology College of Computing and Applied Sciences Universiti Malaysia Pahang Kuantan Pahang Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Kuantan Pahang Malaysia

ISBN: (纸本)9789811641145

Human factor always has been debated as the key factor contributes to industrial accidents such as manufacturing, construction and many more. However, there are lack of studies globally within this research to review and prove the human factor is a primary cause of accidents at mining industry. The objective of this systematic literature review (SLR) study is to investigate the dominant factor contributes to mining accidents by applying a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method. Three main themes and fifteen subthemes have been developed based on 25 selected articles from Scopus database. The findings showed the organizational factor is the most dominant contributor to mining accidents (53%) followed by human factor (27%) and situational factor (20%). In conclusion, this finding hopefully could facilitate mine owners to improve organizational safety concern and provide a healthy safety culture in reducing mining accidents in future. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Mining accidents Mining industry Organizational factor Preferred reporting items for systematic reviews and meta-analyses Systematic literature review

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