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A new approach to predict the formation pressure using multiple regression analysis: Case study from the Sukharev oil field reservoir – Russia

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Journal of King Saud University - engineering Sciences 2024年第8期36卷 694-700页

作者： Ponomareva, Inna N. Martyushev, Dmitriy A. Kumar Govindarajan, Suresh Department of Oil and Gas Technologies Perm National Research Polytechnic University Perm614990 Russia Petroleum Engineering Programme Department of Ocean Engineering Indian Institute of Technology – Madras Chennai India

Formation pressure is an important indicator of field production potential. Currently, the common practice to estimate reservoir pressure is the hydrodynamic exploration test. This method requires shutting down the well, often for a long time. Such long shutdowns lead to less production from the reservoir and worsen the economics of the field. Here, we present the method for determining the pressure without shutting down the well by using statistical methods for such tasks. In this article, we describe the method of finding the formation pressure by using multidimensional multivariate analysis of the actual reservoir data from the Sukharev field. To build the model, several operational, geological, and reservoir properties at various stages of the field pressure were combined into a model to predict reservoir pressure. Results showed that with this simple statistical method, formation pressure varies in two distinctive stages. In the first stage, the formation pressure is influenced by the reservoir petrophysical parameters, whereas in the second stage, operational parameters were more prominent. Finally, three separate formations in the Sukharev field were examined to predict reservoir pressure, and the results were in very good agreement with the actual measured data. This confirmed that the method was practical and capable of predicting reservoir pressure at any time of the well's lifetime. © 2022 The Authors

关键词： Regression analysis

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Development and study of a visco-elastic gel with controlled destruction times for killing oil wells

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Journal of King Saud University - engineering Sciences 2022年第7期34卷 408-415页

作者： Martyushev, Dmitriy A. Govindarajan, Suresh Kumar Department of Oil and Gas Technologies Perm National Research Polytechnic University Perm614990 Russia Petroleum Engineering Programme Department of Ocean Engineering Indian Institute of Technology Madras Chennai India

Well killing remains to be the critical technological stage before proceeding with workover operations. Well killing using Visco-Elastic Gel (VEG) has been found to preserve and reinstate the filtration characteristics of bottom-hole formation zone efficiently. Since, these methods exclude the possibility of penetration of well-killing fluids into the reservoirs, the natural permeability of the reservoir retained. In this article, the authors have reported for the first time about a new VEG with controlled fracture times that remains appropriate for killing oil wells associated with both terrigenous carbonate reservoir operations. A distinctive feature of the proposed technology using a VEG with adjustable degradation times (can vary from 3 to 120 h) is that it requires a relatively smaller volumes of the composition in comparison with that of the conventional technologies. As a result, a significant reduction in the negative impact on the reservoir is achieved resulting from a relatively low penetrating ability of the proposed VEG. High structural properties of the VEG make it possible to reliably block the overlapped reservoir interval and it excludes the penetration of process fluid into the reservoir. In addition, it also eliminates the flow of formation fluid from the reservoir, which is absolutely necessary for trouble-free repairing work. It was found from the present study that the use of a breaker of a particular, single type does not provide the desired results and in the present study, the authors have deduced a relatively complex breaker based on peroxyhydrate and citric acid with a 1:1 ratio. The introduction of the encapsulated peroxyhydrate at the stage of preparation of the VEG ensures monodispersity of its dispersion characteristics. The developed VEG was successfully tested in 32 wells of oil fields in the Perm Krai fields in Russia. The well killing technology developed and described in this article using a VEG with adjustable destruction times ha

关键词： Petroleum reservoir engineering

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The Study of the Integration Between Pectin and Sodium Dodecyl-Sulfate on oil Recovery

The Study of the Integration Between Pectin and Sodium Dodec...

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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Musa, M.S.M. Adam, N.H.B. Gbonhinbor, J.R. Ridzuan, N. Mahat, S.Q.A. Yakasai, F. Ngouangna, E.N. Oseh, J.O. Agi, A. Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS Sabah Kota Kinabalu Malaysia Department of Petroleum Engineering Niger Delta University Wilberforce Island Bayelsa State Amassoma Nigeria 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 Nigeria Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia

ISBN: (纸本)9781959025474

Surfactant flooding is a recognized technique within the realm of chemical enhanced oil recovery (CEOR), to enhance oil recovery in cases of continual depletion in conventional oil reserves. This method has a track record of effectively increasing oil recovery rates. The process involves multiple factors, including the reduction of interfacial tension (IFT), alterations in wettability, the creation of foam, and emulsification. Despite its success, a primary concern associated with surfactant flooding is the emergence of increased fingering effects, resulting in conformance issues like excessive water production. The primary objective of this research is to examine the interaction between pectin and sodium dodecyl sulfate (SDS) in the context of oil recovery, assessing the collaborative potential of pectin in conjunction with SDS to amplify oil production, and evaluating the impact of sodium chloride (NaCl) salinity on the behaviour of pectin and SDS in the context of oil recovery. To address water production concerns, this study employs polymer to augment water viscosity. The interaction between pectin and SDS will be scrutinized by observing three distinct sand packs, each containing surfactant, polymer, and a surfactant-polymer combination, respectively. The findings indicated significant improvements in oil recovery using different enhanced oil recovery (EOR) techniques. Freshwater flooding resulted in a 15% increase in oil recovery compared to saltwater flooding. Polymer flooding with a concentration of 0.6 wt% demonstrated the highest efficacy of 77.85% improvement in oil recovery compared to waterflooding. Surfactant flooding, while slightly less effective than polymer flooding, but still showed a remarkable 48.94% increase in oil recovery after waterflooding. However, surfactant flooding's effectiveness could be constrained by factors like reservoir characteristics and fluid properties. Despite this, the study revealed that combining surfactant and polymer fl

关键词： Surface active agents

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Photocatalytic Polysulfone Membrane Incorporated by Zno-Mno2@Sio2 Composite Under Uv Light Irradiation for Reliable Treatment of Natural Rubber-Laden Wastewater Treatment

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SSRN 2022年

作者： Kusworo, Tutuk Djoko Kumoro, Andri Cahyo Aryanti, Nita Kurniawan, Tonni Agustiono Dalanta, Febio Alias, Nur Hashimah Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang50275 Indonesia College of the Environment and Ecology Xiamen University Fujian Xiamen361102 China Oil and Gas Engineering Programme School of Chemical Engineering College of Engineering Universiti Teknologi MARA Selangor Shah Alam40450 Malaysia

The effects of adding zinc oxide-manganese oxide @ silicon dioxide (ZnO-MnO2@SiO2) photocatalyst composite to polysulfone (PSf) membrane that performed for natural rubber-laden wastewater (NRW) treatment are presented in this study. The sol-gel approach was adopted to make the photocatalyst composites, and the phase inversion technique was applied to synthesize the membranes. The PSf/ZnO-MnO2@SiO2 membrane has a smooth surface with a well-constructed finger-like structure and a fairly uniform dispersion of photocatalyst elementals on its surface, according to SEM and EDX mapping data. From AFM results, the addition of ZnO-MnO2@SiO2 photocatalyst resulted in a rougher surface image. In the FTIR spectrum of PSf/ZnO-MnO2@SiO2 membrane, many new polar functional groups such as Zn-O, Mn-O, and Si-O-Si were identified. The MnO2 doping in composite successfully increased the photo-sensitivity and photocatalytic activity of the composite, implying that the bandgap energy was reduced from 3.10 eV to 2.65 eV, promoting photocatalytic improvement. The membrane porosity, hydrophilicity, water absorption ability, and mechanical strength all enhanced with the addition of ZnO-MnO2@SiO2 photocatalyst. In addition, the PSf/ZnO-MnO2@SiO2 membrane outperformed the competition in terms of permeate flow, pollutant rejection, and photo-degradation ability. The photocatalytic kinetic assessment revealed that the pseudo-first order kinetic model suited the pollutant degradation behavior better than the zero-order model, with PSf/ZnO-MnO2@SiO2 membrane achieving the maximum photocatalytic degradation rate. In conclusion, the PSf/ZnO-MnO2@SiO2 membrane is determined to be the most promising UV light-driven photocatalytic membrane for successful NRW treatment based on all attributes and performance. © 2022, The Authors. All rights reserved.

关键词： Silica

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A Study on Microfluidic Desalination Using Short-Chain Fatty Acid by Directional Solvent Extraction in a Serpentine Micromixer

SSRN

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SSRN 2024年

作者： Teo, Alvin Hua Huang Chin, Sim Yee Ling, Fiona Wang Ming Abdulbari, Hayder A. Centre for Research in Advance Fluid and Processes Universiti Malaysia Pahang Al-Sultan Abdullah Lebuh Persiaran Tun Khalil Yaakob Pahang Kuantan26300 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Lebuh Persiaran Tun Khalil Yaakob Pahang Kuantan26300 Malaysia Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS Sabah Kota Kinabalu88400 Malaysia Department of Dentistry Alsalam University College Baghdad Iraq

Water shortage is an imminent issue in the foreseeable future while thermal desalination techniques are energy intensive. This study investigates a membrane-less low temperature technique known as directional solvent extraction (DSE) desalination in a serpentine microchannel at 45, 50, 55, 60 and 65 °C. Two lower fatty acids, heptanoic acid (HeptA) and nonanoic acid (NonA) were used as the solvents to recover water from a 35000 ppm total dissolved solids (TDS) seawater at 2, 3, 4 and 5 organic to aqueous flowrate ratios (O: aq). Custom-made polydimethylsiloxane (PDMS) – glass microfluidic device is fabricated via direct writing lithography with depth and length of 100 µm and 161 mm respectively while the width is varied from 400 - 800 µm. Droplets were generated during the extraction process to maximize diffusion by using a 90° T-junction where the organic solvent is the continuous phase and seawater is the dispersed phase. A maximum product water yield, Yw of 4% v/v and 1.9% v/v is achieved by HeptA and NonA respectively. The product water recovered from HeptA and NonA has salinity as low as 0.01% and 0.08%, respectively. The HeptA system produces water containing higher solvent residuals than the NonA system. HeptA is a better solvent as it can extract approximately two times more water than NonA under the same operating conditions. Both solvents are reusable. © 2024, The Authors. All rights reserved.

关键词： Desalination

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Influential study on the effect of surfactant concentration, sonication power, sonication time, and oil concentration towards the formation of stable nanoemulsion for enhanced oil recovery

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AIP Conference Proceedings 2023年第1期2945卷

作者： Muhamad Afif Naqiudien Aladin Mohd Hardyianto Vai Bahrun Zykamilia Kamin Zainal Zakaria Awang Bono Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia Chemical Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia GRISM Innovative Solutions Kota Kinabalu Sabah Malaysia

Nanoemulsion is an effective chemical-enhanced oil recovery medium. It can recover the remaining oil of a reservoir after primary and secondary recovery by reducing the interfacial tension between reservoir fluids and altering the wettability of reservoir rock. However, a colloidal system such as nanoemulsion is constantly unstable since the droplets tend to aggregate. Therefore, proper characterizations of its stability are needed to ensure its effectiveness. Hence, this research formulates oil-in-water nanoemulsions using nonionic surfactant (Tween 40) and oleic acid. The nanoemulsions undergo ultrasonication at various sonication powers, sonication times, oil, and surfactant concentrations. The nanoemulsions characterizations were droplet size, polydiversity index (PDI), and zeta potential. Subsequently, the results show that the droplet sizes were obtained between 180 and 250 nm. Further, the surface charge values obtained were lower than -30 mV. Therefore, the polydiversity index of below one was achieved, showing a favorable value. Lastly, the bottle testing method produces stable nanoemulsions with a long separation time.

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Climate change and the petroleum industry: How revolution of green technologies could make an impact on carbon emission reduction – A short review

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AIP Conference Proceedings 2023年第1期2945卷

作者： Zykamilia Kamin Ramzah Dambul Oil and Gas Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia Geography Programme Faculty of Social Science and Humanities Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia

Climate change is a change of climate contributed by human activity either directly or indirectly. Subsequently, these activities change the natural climate’s global atmospheric composition and variability over time. Climate change may be due to the emission of greenhouse gases (GHG) into the atmosphere, such as carbon dioxide (CO2). The petroleum industry could contribute to these emissions from upstream and downstream activities, such as power generation and petroleum product utilization. Reducing the emission of GHG minimizes its impact on the environment, including global warming. In 2020, there was a drop in CO2 emissions due to the restriction of movement because of the COVID-19 pandemic; therefore, there is a temporary reduction once the condition is back to normal, making climate change a long-term problem. Recently, green technologies have shown positive outcomes, such as carbon capture, utilization, storage, decarbonization of transport, and solar as alternative energy. Therefore, this paper gives a short review of the use of these technologies to address climate change impact, which would be beneficial for future research and development and policy making.

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A short review on pressure swing adsorption (PSA) technology for nitrogen generation from air

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AIP Conference Proceedings 2022年第1期2610卷

作者： Zykamilia Kamin Mohd H. V. Bahrun Awang Bono 1Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 2Chemical Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 3GRISM Innovative Solution Kota Kinabalu Sabah Malaysia

Nitrogen is among the essential industrial gases after oxygen and hydrogen commonly obtained through the air separation process. Air separation is one of the essential gas separation processes in many chemical industries since it accounts for a substantial element of production costs in related sectors. In response to this increasing need, one of the most substantial areas of investigation is the quest for cost-effective and energy-efficient air separation processes. Different technologies for nitrogen generation from the air, such as cryogenic distillation, membrane separation, and pressure swing adsorption (PSA), were discussed. PSA offers various advantages, mainly related to cost, low-energy penalty, environmental impact, and modularity. Since its first invention, the three different configurations of PSA have been distinguished. The dynamic behavior of PSA is well described using the simplified coupled mass, momentum, and energy balances, with some related correlations. Herein, comprehensive correlations were presented for easy reference. As a flexible process and a viable alternative to existing nitrogen generation technologies, we anticipate that the PSA technology will significantly contribute to a wide range of chemical industries in the near future.

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A short review on industrial grade oxygen production from air by pressure swing adsorption

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AIP Conference Proceedings 2022年第1期2610卷

作者： Zykamilia Kamin Cynthia Chin Awang Bono 1Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 2Chemical Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 3GRISM Innovative Solutions Kota Kinabalu Sabah Malaysia

Oxygen notably has high demand to be used in industrial applications. It is crucial that effective and efficient technology needs to be developed to coping this situation. Generally, oxygen is generated through cryogenic distillation, which requires the air to undergo cooling, compression, and further purification. It can produce almost 99% oxygen purity, but it is cost-intensive and has high energy consumption. Therefore, pressure swing adsorption (PSA) is developed for oxygen production, which has uncomplicated operating principles and is cost-efficient with generating relatively high product purity. In this paper, a brief review of pressure swing adsorption is presented. The usage of oxygen produced through pressure swing adsorption has been reviewed for on-board oxygen generation systems (OBOGS) and oxy-enriched incineration of municipal solid waste (MSW). In addition, assumptions and correlations for material, heat and energy balances, as well as the adsorption equilibrium are included. This work also addresses the suitable adsorbents to be used to generate oxygen through pressure swing adsorption.

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Synthesis and optimization of surfactant-stabilized palm oil-based nanoemulsion for enhanced oil recovery

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AIP Conference Proceedings 2022年第1期2610卷

作者： Mohd H. V. Bahrun Zykamilia Kamin Nur I. R. Idris Muhamad A. N. Aladin Awang Bono 1Chemical Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 2Oil and Gas Engineering Programme Faculty of Engineering Universiti Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Sabah Malaysia 3GRISM Innovative Solution Kota Kinabalu Sabah Malaysia

Nanoemulsions have been reported as a suitable alternative for potential use in enhanced oil recovery (EOR) by reducing the interfacial tension of the oil-water system and altering rock wettability. However, their production can be costly and have unstable colloidal properties. Hence, this work is aimed to produce stable oil-in-water nanoemulsion at a lower cost using refined palm oil and surfactants of Tween 60 and Span 80 *** ratio of 2:1 via ultrasonication method. In this study, response surface methodology (RSM) was used to investigate the effect of surfactant concentration (5 – 30 mL), sonication time (0 – 15 min), and sonication power (0 – 375 W) on droplet size and zeta potential of nanoemulsion as well as an approach to optimize nanoemulsions preparation. The coefficient of determinations for droplets size and zeta potential were 0.8712 and 0.8041, respectively. The optimum conditions for nanoemulsions preparation were 5.0 mL surfactant concentration, 2.9 min sonication time, and 375 W sonication power, which attained nanoemulsion with droplet size of 423.33 nm and zeta potential of -19.37 mV. These results indicate nanoemulsion can be prepared at low cost using refined palm oil within a shorter sonication time and lower sonication power, and it has the potential to be used for EOR application.

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