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Готові списки джерел за темами / Oil-water emulsions- Crude / Статті в журналах

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Статті в журналах з теми "Oil-water emulsions- Crude"

Автор: Grafiati

Опубліковано: 6 вересня 2023

Оновлено: 31 липня 2025

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1

Abouther Thalib Halboose, Mudhaffar Yacoub Hussein, and Raheem Jafar Aziz. "Study the effect of Water content and Temperature on the stability of Crude Oil/Water Emulsions." Journal of the College of Basic Education 20, no. 86 (2023): 987–92. http://dx.doi.org/10.35950/cbej.v20i86.9912.

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Анотація:

During the crude oil production, water-in-oil stable emulsions may be created. Water which is naturally present in oil reservoirs mixes with crude oil to form very stable emulsions due to very high shear rates and zones of turbulence encountered at the wellhead and pipe of production. The formation of these emulsions is generally caused by the presence of resins, asphaltenes, wax and naphtenic acid which play the role of "natural emulsifiers. The aim of this study was to focus on some important factors in the formation and stabilize crude oil/water emulsions. These factors are the water conten

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2

Tang, Longhao, Tingyi Wang, Yingbiao Xu, et al. "Research and Application Progress of Crude Oil Demulsification Technology." Processes 12, no. 10 (2024): 2292. http://dx.doi.org/10.3390/pr12102292.

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The extraction and collection of crude oil will result in the formation of numerous complex emulsions, which will not only decrease crude oil production, raise the cost of extraction and storage, and worsen pipeline equipment loss, but also seriously pollute the environment because the oil in the emulsion can fill soil pores, lower the soil’s permeability to air and water, and create an oil film on the water’s surface to prevent air–water contact. At present, a variety of demulsification technologies have been developed, such as physical, chemical, biological and other new emulsion breaking te

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3

Nagy, Roland, Andrea Elekes, László Bartha, and Árpád Vágó. "Rheological characterization of crude oil-water emulsions." Epitoanyag - Journal of Silicate Based and Composite Materials 68, no. 4 (2016): 98–104. http://dx.doi.org/10.14382/epitoanyag-jsbcm.2016.17.

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4

Faizullayev, Saidulla, Erik Sailaubay, and Akbota Adilbekova. "Thermal treatment of model water-in-oil emulsions by coal fly ash particles." Chemical Bulletin of Kazakh National University, no. 1 (March 31, 2025): 4–10. https://doi.org/10.15328/cb1392.

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One of the primary challenges in the oil industry is the formation of stable crude oil emulsions, which cause equipment and pipeline corrosion due to the inorganic salts dissolved in the aqueous phase. This study investigated the effect of coal fly ash on model crude oil emulsions. The model emulsions were prepared using crude oil samples from the Kyzylorda and Atyrau regions. Thermal demulsification at 60°C resulted in a low dewatering rate, with only 16% of water separated from a 50% water-in-oil emulsion. Higher efficiency in oil emulsion separation was observed using the microwave treatmen

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5

N. H. Abdurahman and H. A. Magdib. "Surfactant (UMP) for emulsification and stabilization of water-in-crude oil emulsions (W/O)." Maejo International Journal of Energy and Environmental Communication 2, no. 2 (2020): 18–21. http://dx.doi.org/10.54279/mijeec.v2i2.245027.

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The purpose of this research is to look into the formulation and evaluation of concentrated water-in-oil (W/O) emulsions stabilized by UMP NS-19-02 surfactant and their application for crude oil emulsion stabilization using gummy Malaysian crude oil. A two-petroleum oil from Malaysia oil refinery, i.e., Tapis petroleum oil and Tapis- Mesilla blend, were utilized to make water-in-oil emulsions. The various factors influencing emulsion characteristics and stability were evaluated. It was discovered that the stability of the water-in-oil emulsion improved by UMP NS-19-02 improved as the surfactan

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6

Buist, Ian A., and Nick Glover. "IN SITU BURNING OF ALASKA NORTH SLOPE EMULSIONS." International Oil Spill Conference Proceedings 1995, no. 1 (1995): 139–46. http://dx.doi.org/10.7901/2169-3358-1995-1-139.

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ABSTRACT The onset of water-in-oil emulsion formation in an oil slick often signals the closing of the window of opportunity for in-situ burning as a countermeasure. Water contents in excess of 25 percent in a stable emulsion generally preclude ignition of the slick. A study of in-situ burning of water-in-oil emulsions formed by weathered Alaska North Slope (ANS) crude oil has recently been completed by Alaska Clean Seas. The study consisted of three phases: laboratory-scale burns in Ottawa in a 0.13 m2 burn ring, small-scale burns in Prudhoe Bay in 1.2 m2 and 3.3 m2 pans, and meso-scale burns

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7

Akbari, Sweeta, and Abdurahman Hamid Nour. "Stabilization of crude oil emulsions using different surfactants." International Journal of Innovative Research and Scientific Studies 1, no. 1 (2018): 23–26. http://dx.doi.org/10.53894/ijirss.v1i1.6.

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Emulsions can be found in different industries such as petroleum, food, cosmetic and pharmaceutics. Generally, there are two types of emulsions in petroleum industries: water-in-oil (W/O) and oil-in-water (O/W). The aim of this research was to evaluate the stability of W/O emulsions using different emulsifiers such as Span 80, Span 83, Triton-x-100, DEA, and LSWR with different concentrations (1.5 and 2.5) vol%. All the emulsions were prepared at (20-80) vol% and 2000 rpm. The result of this study showed that the most stable emulsions were prepared by Span 80. However, LSWR formed the most uns

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8

Manthey, Frank A., John D. Nalewaja, and Edward F. Szelezniak. "Herbicide-Oil-Water Emulsions." Weed Technology 3, no. 1 (1989): 13–19. http://dx.doi.org/10.1017/s0890037x00031237.

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Oil-water emulsion stability was determined for crop origin and refinement of seed oils and their methyl esterified fatty acids (methylated seed oil) as influenced by emulsifiers and herbicides. Oil-in-water emulsion stability of one-refined, degummed, and crude seed oils was affected by the emulsifier. However, emulsion stability of methylated seed oil was not affected by the refinement of the seed oil used to produce the methylated seed oil or by the emulsifier. Oils without emulsifiers or emulsifiers alone added to formulated herbicide-water emulsions reduced emulsion stability depending up

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9

Quej-Ake, L. M., A. Contreras, and Jorge Aburto. "The effect of non-ionic surfactant on the internal corrosion for X52 steel in extra-heavy crude oil-in-water emulsions." Anti-Corrosion Methods and Materials 65, no. 3 (2018): 234–48. http://dx.doi.org/10.1108/acmm-03-2017-1770.

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Purpose The purpose of this research is to study different extra-heavy crude oil-in-water emulsions that can be found in practice for corrosion process of X52 steel adding 60 mg.L-1 of non-ionic surfactant and a corrosion inhibitor (CI). Electrochemical impedance spectroscopy and Tafel plots are carried out. Thus, Bode-modulus and Bode-phase angle plots are discussed. Adsorption isotherms obtained from corrosion rate (CR) values are taken into account. Design/methodology/approach Two-electrode arrangement is used to characterize the pseudo-capacitance values for X52 steel exposed to water and

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10

Maddah, Zenah Hani, and Tariq Mohammed Naife. "Demulsification of Water in Iraqi Crude Oil Emulsion." Journal of Engineering 25, no. 11 (2019): 37–46. http://dx.doi.org/10.31026/j.eng.2019.11.03.

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Formation of emulsions during oil production is a costly problem, and decreased water content in emulsions leads to increases productivity and reduces the potential for pipeline corrosion and equipment used. The chemical demulsification process of crude oil emulsions is one of the methods used for reducing water content. The demulsifier presence causes the film layer between water droplets and the crude oil emulsion that to become unstable, leading to the accelerated of water coalescence. This research was performed to study the performance of a chemical demulsifier Chimec2439 (commercial) a b

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11

Saad, M. A., Mohammed Kamil, N. H. Abdurahman, Rosli Mohd Yunus, and Omar I. Awad. "An Overview of Recent Advances in State-of-the-Art Techniques in the Demulsification of Crude Oil Emulsions." Processes 7, no. 7 (2019): 470. http://dx.doi.org/10.3390/pr7070470.

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Анотація:

The processing of crude oil often requires the extraction of a large amount of water. Frequently, crude oil is mixed with water to form water-in-crude oil emulsions as the result of factors such as high shear at the production wellhead and surface-active substances that are naturally present in crude oil. These emulsions are undesirable and require demulsification to remove the dispersed water and associated inorganic salts in order to meet production and transportation specifications. Additionally, the demulsification of these crude oil emulsions mitigates corrosion and catalyst poisoning and

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12

Ghetiu, Iuliana, Ioana Gabriela Stan, Casen Panaitescu, Cosmin Jinescu, and Alina Monica Mares. "Surfactants Efficiency in Oil Reserves Exploatation." Revista de Chimie 68, no. 2 (2017): 273–78. http://dx.doi.org/10.37358/rc.17.2.5435.

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The use of surfactants in the process of water separation from crude oil emulsions formed at extraction is an effective solution in the treatment of crude oil. But perfecting this technology to a higher degree of efficiency, in order to destabilize the emulsion formed, requires the determination of the parameters involved in the design and the correlation of the obtained results. This research also aims at finding optimal solutions that increase the degree of water separation from emulsions using surface-effective solutions to destabilize the emulsion layer. This research was basedon data from

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13

Kolotova, Daria S., Yuliya A. Kuchina, Lyudmila A. Petrova, Nicolay G. Voron’ko, and Svetlana R. Derkach. "Rheology of Water-in-Crude Oil Emulsions: Influence of Concentration and Temperature." Colloids and Interfaces 2, no. 4 (2018): 64. http://dx.doi.org/10.3390/colloids2040064.

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The effect of aqueous phase content and temperature North Sea crude oil emulsion viscoelastic behavior has been studied. Heavy crude oil from the North Sea is of high viscosity and is capable of forming stable water-in-crude oil (w/o) emulsions without introducing any synthetic surfactants. The aqueous phase volume content was varied from 1 to 40%, and the temperature was varied from 0 to 30 °C. The w/o emulsion viscosity increased sharply when the aqueous phase content exceeds 20%, being more pronounced at the lower temperatures. The viscosity flow curves for emulsions containing more than 20

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14

Gentili Nunes, Denise, Jarlene Da Conceição Silva, Giovani Cavalcanti Nunes, Matheus Delduque Lopes da Silva, and Elizabete Fernandes Lucas. "Crude oils mixtures: compatibility and kinetics of water-in-oil emulsions separation." DYNA 89, no. 223 (2022): 67–74. http://dx.doi.org/10.15446/dyna.v89n223.99911.

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Some oil fields produce from different reservoirs, which may be incompatible generating precipitates. These precipitates are often asphaltenes, which can be an emulsion stabilizing agent negatively affecting the oil treatment processes. In this work, the influence of oil incompatibility on the stabilization of water-in-oil emulsions was studied. Emulsions were evaluated from three different oils (A, B and C) and their mixtures (AB, AC, BC and ABC). The results showed that there is a relationship between separation kinetics of emulsions and asphaltene precipitation. The separation kinetics of t

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15

Beetge, Jan H., and Bruce Horne. "Chemical-Demulsifier Development Based on Critical-Electric-Field Measurements." SPE Journal 13, no. 03 (2008): 346–53. http://dx.doi.org/10.2118/93325-pa.

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Summary Resolution of water-and-oil emulsions is critical to the oilfield industry. A wide variety of undesirable emulsions are formed during the production, handling, and processing of crude oil. Although various methods are used, dehydration of crude oils is achieved mostly by gravitational sedimentation, normally at elevated temperatures and with the addition of chemical demulsifiers. The quantitative evaluation of emulsion stability by a critical-electric-field (CEF) technique was developed to play a significant role in chemical-demulsifier research. It was found that the CEF technique is

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16

Nadirova, Zhanna, Oleksandr Ivakhnenko, Manap Zhantasov, Gulmira Bimbetova, and Kazim Nadirov. "Ultrasound-assisted dewatering of crude oil from Kumkol oilfield." Chemical Bulletin of Kazakh National University, no. 2 (June 30, 2021): 4–10. http://dx.doi.org/10.15328/cb1217.

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Reducing the water content of crude oil is a necessary step in preparing oil for transportation and processing. This task is complicated by the presence of stable water-in-oil emulsions. The most widely used approach to oil demulsification is exploring chemical demulsifiers. However, the high cost and impossibility of regenerating the latter require the search for new ways to destroy water-oil emulsions. One of the promising areas is the use of ultrasound. This paper presents the results of studies on the ultrasonic treatment of four samples of emulsions with different water content (8.74; 15;

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17

Aysel Gasimzadeh, Aysel Gasimzadeh. "INVESTIGATION OF EFFECT OF NEW REAGENT COMPOSITIONS ON VARIOUS CRUDE OIL EMULSIONS OF AZERBAIJAN." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 10, no. 06 (2021): 04–13. http://dx.doi.org/10.36962/pahtei1006202104.

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The article is devoted to the decomposition of strong water-crude oil emulsions formed during the preparation of crude oil for transportation. In the petroleum industry, there is a great need to develop new chemicals to improve the degradation efficiency of stable water- crude oil emulsions. Decomposition of strong water-oil emulsions is considered a key part of crude oil preparation for transportation. Therefore, the development of new demulsifying compositions to improve the degradation efficiency of stable crue oil emulsions remains relevant. This paper presents the results of studies of de

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18

Abdulla, Firdos M., and N. H. Abdurahman. "Demulsification of crude oil emulsion via electrocoagulation method." Journal of Chemical Engineering and Industrial Biotechnology 3, no. 1 (2018): 97–105. http://dx.doi.org/10.15282/jceib.v3i1.3878.

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During oil production and processing emulsions were formed and seriously cause problem, both in terms of chemicals used and production losses. The traditional methods of breaking crude oil emulsions are disadvantageous from both economic and environmental perspectives. In this paper, the potentials of electrocoagulation technology in demulsification of crude oil emulsion were investigated. The crude oil obtained from Petronas Ponapean Melaka, Malaysia. For stability performance test, Span 80 was used as emulsifier, while for chemical demulsification performance test,Hexylamine was used. The el

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19

Sulaiman, Shaharin A., Mohamad Nazmi Z. Moni, and Siti Norazilah Ahmad Tamili. "Flow of Water-Oil Emulsion through an Orifice." MATEC Web of Conferences 225 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201822503002.

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The oil-in-water (O/W) and water-in-oil (W/O) emulsions are two common types of emulsions found in oil production industry. While stable O/W may be beneficial in transporting crude oil, stable W/O poses a flow assurance problem that leads to disruptions and losses in oil production line. This study examines the behaviour of both types of emulsion (40:60, 50:50 and 60:40 water-oil emulsion, vol. basis) subjected to 3/4D, 1/2D and 1/4D orifices within a pipeline. The study confirms that oil and water may form emulsion with only mechanical agitation and dynamic flow in the pipeline and without th

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20

Sitnikov, Petr, Philipp Legki, Mikhail Torlopov, et al. "Efficient (Bio)emulsification/Degradation of Crude Oil Using Cellulose Nanocrystals." Polysaccharides 4, no. 4 (2023): 402–20. http://dx.doi.org/10.3390/polysaccharides4040024.

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This study has investigated the influence of cellulose nanocrystals (CNCs) with partially acetylated surfaces on the formation, stability, rheology and biodegradability of the Pickering emulsion in a crude oil/water (co/w) system. In all investigated systems, it was observed that the CNC concentrations of 7 mg/mL led to the emulsions showing stability over time. It was also noticed that the increase in concentration of background electrolyte (NaCl) leds to the droplets of emulsions becoming smaller. It was demonstrated that the rheology of the o/w emulsions of the oil products and crude oil st

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21

Algburi, Dr Abbas K. "Continuous Separation Process of Water-in-Crude Oil Emulsion by Simultaneous Application of an Electrical Field Combined with a Novel Absorbent Based on Functionalised PolyHIPE Polymer." Journal of Petroleum Research and Studies 11, no. 4 (2021): 91–113. http://dx.doi.org/10.52716/jprs.v11i4.565.

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During the extraction process of crude oil, the removal of water from a high stability water-in-crude oil emulsions is life-threatening for the production of a profitable product. However, several technologies of separation exist today, e.g. stripping columns, centrifugal separators, coalescence separators, vacuum distillation systems and gravity separators, almost all of these approaches are not able to completely remove water from water-in-crude oil emulsions besides their high cost. In this study, the preparation of a high internal phase emulsion (HIPE) was achieved on a laboratory sc

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22

Peng, Yan, Xiangyu Zhang, Lihua Cheng, et al. "Effect of Asphaltenes on the Stability of Water in Crude Oil Emulsions." Materials 18, no. 3 (2025): 630. https://doi.org/10.3390/ma18030630.

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The presence of asphaltene, especially in heavy crude oil, causes difficulties in the de-watering/desalting process, which is the initial step of crude oil pretreatment. This study investigates the effect of asphaltenes on the stability of crude oil emulsions using a simulated oil system composed of toluene and n-heptane. It was found that asphaltenes behave like conventional surfactants, adsorbing at the oil–water interface and reducing interfacial tension. The critical aggregation concentration (CAC) of W/O emulsions formed from a toluene and n-heptane mixture (7:3 volume ratio) was found to

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23

Asaadian, Hamidreza, and Milan Stanko. "Experimental Characterization and Evaluation of Crude Spiking Influence on Oil/Water Dispersed Flow in Pipe." Molecules 28, no. 17 (2023): 6363. http://dx.doi.org/10.3390/molecules28176363.

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This study centers around examining the impact of introducing varying (small) quantities of crude oil into mineral oil (Exxsol D60) on the resultant properties of dispersions and emulsions in oil–salty-water mixture properties such as rheology, droplet size distribution, separation duration, and interfacial tension. The experimentation encompassed bottle tests and a compact flow loop configuration featuring a 2 m horizontal pipe segment. The findings indicate that blends of oil infused with crude oil, combined with salty water at water ratios of 25% and 50%, necessitate an extended duration fo

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24

Salam, K. K., A. O. Alade, A. O. Arinkoola, and A. Opawale. "Improving the Demulsification Process of Heavy Crude Oil Emulsion through Blending with Diluent." Journal of Petroleum Engineering 2013 (April 21, 2013): 1–6. http://dx.doi.org/10.1155/2013/793101.

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In crude oil production from brown fields or heavy oil, there is production of water in oil emulsions which can either be controlled or avoided. This emulsion resulted in an increase in viscosity which can seriously affect the production of oil from sand phase up to flow line. Failure to separate the oil and water mixture efficiently and effectively could result in problems such as overloading of surface separation equipments, increased cost of pumping wet crude, and corrosion problems. Light hydrocarbon diluent was added in varied proportions to three emulsion samples collected from three dif

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25

Mohammed, Sawsan A. M., and Sally D. Maan. "The Effect of Asphaltene on the Stability of Iraqi Water in Crude Oil Emulsions." Iraqi Journal of Chemical and Petroleum Engineering 17, no. 2 (2016): 37–45. http://dx.doi.org/10.31699/ijcpe.2016.2.5.

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In the present work, asphaltenes and resins separated from emulsion samples collected from two Iraqi oil wells, Nafut Kana (Nk) and Basrah were used to study the emulsion stability. The effect of oil resins to asphaltene (R/A) ratio, pH of the aqueous phase, addition of paraffinic solvent (n-heptane), aromatic solvent (toluene), and blend of both (heptol) in various proportions on the stability of emulsions had been investigated. The conditions of experiments were specified as an agitation speed of 1000 rpm for 30 minutes, heating at 50 °C, and water content of 30%. The results showed that as

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26

Canevari, Gerard P., and Robert J. Fiocco. "CRUDE OIL VANADIUM AND NICKEL CONTENT CAN PREDICT EMULSIFICATION TENDENCY." International Oil Spill Conference Proceedings 1997, no. 1 (1997): 309–14. http://dx.doi.org/10.7901/2169-3358-1997-1-309.

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ABSTRACT Most crude oils in contact with water form water-in-oil emulsions. The stability of these emulsions will vary. When spilled crude oil emulsifies, it becomes viscous and expands in volume, becoming more difficult to recover, chemically disperse, or ignite. The ability to better predict the emulsion-forming behavior of a specific crude oil would greatly aid oil spill response decisions. The problem is complex because of the various stabilizing mechanisms. This study identified surface active agents, that is, porphyrins, as key compounds that contribute to the emulsification of crude oil

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27

Canevari, Gerard P. "BASIC STUDY REVEALS HOW DIFFERENT CRUDE OILS INFLUENCE DISPERSANT PERFORMANCE." International Oil Spill Conference Proceedings 1987, no. 1 (1987): 293–96. http://dx.doi.org/10.7901/2169-3358-1987-1-293.

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ABSTRACT Previous research has shown that crude oils contain various amounts of indigenous surface active agents that stabilize water-in-oil emulsions. It is also known that crude oils stabilize such emulsions to different extents. One aspect of the study was to investigate the relationship between the emulsion forming tendency of the various crude oils and the level of performance of a chemical dispersant on the particular crude oil. The results of the extensive laboratory test program indicated that dispersant effectiveness is a function of both dispersant type and the specific crude oil. Ho

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28

LOSKUTOVA, YU V., and N. V. YUDINA. "RHEOLOGICAL AND COLLOID-STRUCTURAL BEHAVIOUR OF HIGH-VISCOSITY CRUDE OIL AND EMULSION AFTER WAVE ACTION." Chemistry for Sustainable Development 32, no. 1 (2024): 10–2024531. http://dx.doi.org/10.15372/csd2024531.

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Анотація:

One of the main problems in oil production is the formation of stable oil-water emulsions that cause corrosion of pipelines, malfunction of pumping equipment, and poisoning of catalysts at refineries. The features of the viscosity-temperature behaviour of high-viscosity resinous crude oil from the Russkoye field (Yamal-Nenets autonomous district) and its 30 wt% emulsion after exposure to electromagnetic and low-frequency acoustic fields are investigated. Electromagnetic treatment of crude oil leads to a decrease in the phase transition temperature and the yield strength coefficient. Low-freque

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29

Rondon, B. "Experimental Characterization of Admittance Meter With Crude Oil Emulsions." International Journal of Electronics, Communications, and Measurement Engineering 10, no. 2 (2021): 51–59. http://dx.doi.org/10.4018/ijecme.2021070104.

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Measuring water content is useful in the oil industry to quantify the actual amount of oil being produced. This extent is used in the processes of control and transfer of custody in tank farms, flow stations, and others. In this study, to determine the water content with an admittance measuring device, a characterization was performed with emulsions to identify the behavior of the sensor against this type of fluid. The device has facing electrodes parallel flat. Emulsions O/W and W/O were prepared in the laboratory with heavy oil at laboratory temperature conditions. The capacitance measuremen

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30

Hadjer, Daoudi, Hammadi Larbi, and Ladouani Abdelkrim. "Effect of Xanthan gum on rheological properties of water - crude oil emulsions." Brazilian Journal of Technology 7, no. 4 (2024): e76330. https://doi.org/10.38152/bjtv7n4-050.

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This study investigated the effect of Xanthan Gum on the stability, microstructure, and rheological properties of water/crude oil emulsions using the Rheometer DRH2, a centrifuge, and an optical microscope. The results show a decrease in the diameter of the water globules for Xanthan Gum quantities less than 0.2 wt (%), which leads to the stability of the emulsions of water/ crude oil. However, it increases when Xanthan Gum quantities are greater than 0.2 wt%, indicating a destabilization of the emulsions. Moreover, the flow curves for all formulated emulsions were analysed using the Herschel-

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31

Liu, Yigang, Jianhua Bai, Peipei Guo, et al. "Experimental Study on Water-in-Heavy-Oil Droplets Stability and Viscosity Variations in the Dilution Process of Water-in-Heavy-Oil Emulsions by Light Crude Oil." Energies 17, no. 2 (2024): 332. http://dx.doi.org/10.3390/en17020332.

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The main objective of this study is to put forward effective schemes for alleviating reservoir choke caused by emulsification or Jamin’s effect using the dilution method by light crude oil, as well as sharply increased viscosity. In this study, water-in-heavy-oil (W/O) emulsions with varying water fractions were prepared with heavy oil from Bohai Bay, China. Mixtures of W/O emulsions and light crude oil samples (light oil and light heavy oil) with varied dilution ratio (1:9, 2:8, 3:7) are tested, respectively by the electron microscope and by the rheometer. W/O droplets’ distribution and visco

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32

Arslan, Dr Mueyyed Akram, and Dr Ghassan Burhan Yaqoob. "Optimization of (RP6000 and MAKS-9150) demulsifiers for separation of water from (Kirkuk / baba, Khbbaz) crude oil emulsion." Journal of Petroleum Research and Studies 10, no. 4 (2020): 69–84. http://dx.doi.org/10.52716/jprs.v10i4.368.

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Анотація:

In this study oil-soluble (RP6000 and MAKS-9150) emulsion breakers have been selected for separation of water from Kirkuk / baba (50oC), Khbbaz (40oC) crude oil emulsions and their activity measured using the Bottle test method at different concentration and found the activity of RP6000 demulsified best than MAKS-9150 emulsion breakers. RP6000 separated water (100%) in (15)min., (40)ppm and in (60)min., (20)ppm of demulsified for Kirkuk/ baba Crude oil and for khbbaz Crude oil the (100%) water separation was in (15)min., (80)ppm and in (30)min., (60)ppm and PH effect, salinity, temperature and

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33

Adilbekova, Akbota, Saidulla Faizullayev, and Wojciech Kujawski. "Evaluation of the effectiveness of commercial demulsifiers based on polyoxyalkylated compounds in relation to oil and water emulsions of the Sarybulak oilfield." Chemical Bulletin of Kazakh National University, no. 3 (September 20, 2022): 4–11. http://dx.doi.org/10.15328/cb1282.

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Анотація:

Water and oil emulsion formation is a natural process that takes place during oil recovery and processing. Heavy oils of Kazakhstan form highly stable oil emulsions mostly stabilized by a high content of asphaltenes, resins, and other surface-active components. Oil-in-water emulsions initiate the corrosion of equipment and cause transportation issues. Dewatering of oil emulsions is economically reasonable and requires universal techniques which could be applied to any sort of oil. In this study, the chemical composition of crude oil from the Sarybulak oilfield was determined, and commercial de

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34

Sun, Qi, Zhao-Hui Zhou, Lu Han, et al. "How to Regulate the Migration Ability of Emulsions in Micro-Scale Pores: Droplet Size or Membrane Strength?" Molecules 28, no. 4 (2023): 1672. http://dx.doi.org/10.3390/molecules28041672.

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Micro visualization has become an important means of solving colloid and interface scientific problems in enhanced oil recovery. It can establish a relationship between a series of performance evaluations of an oil-water interface under macroscopic dimensions and the actual application effect in confined space, and more truly and reliably reflect the starting and migration behavior of crude oil or emulsion in rock pores. In this article, zwitterionic surfactant alkyl sulfobetaine (ASB) and anionic extended surfactant alkyl polyoxypropylene sulfate (A145) were employed as flooding surfactants.

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35

Li, Qiang, Yuhan Zhang, Qing Miao, Lei Chen, Ziyun Yuan, and Gang Liu. "Rheological properties of oil–water Pickering emulsion stabilized by Fe3O4 solid nanoparticles." Open Physics 18, no. 1 (2020): 1188–200. http://dx.doi.org/10.1515/phys-2020-0223.

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Abstract Pickering emulsions have attracted extensive attention due to their good properties including easy to manufacture, high stability, and superparamagnetic response. To improve the emulsifying transportation of crude oil, a Pickering emulsion of crude oil and water stabilized by Fe3O4 nanoparticles was prepared and its rheological properties were tested in this research. It was found that the particle size of dispersion droplet polymerization group in stable crude oil Pickering emulsion is negatively correlated with solid content and water content, and the equilibrium apparent viscosity

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36

Hayder, Hasan Ali, Peng Shi, and Sama M. Al-Jubouri. "Developing a Superhydrophilic/Underwater Superoleophobic Plasma-Modified PVDF Microfiltration Membrane with Copolymer Hydrogels for Oily Water Separation." Applied Sciences 15, no. 12 (2025): 6654. https://doi.org/10.3390/app15126654.

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Polymer membranes often face challenges of oil fouling and rapid water flux decline during the separation of oil-in-water emulsions, making them a focal point of ongoing research and development efforts. Coating PVDF membranes with a hydrogel layer equips the developed membranes with robust potential to mitigate oil fouling. However, developing a controllable thickness of a stable hydrogel layer to prevent the blocking of membrane pores remains a critical issue. In this work, atmospheric pressure low-temperature plasma was used to prepare the surface of a PVDF membrane to improve its wettabili

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37

Nunes, Rita De Cassia P., Carla Michele F. Silva, Paulo Cristiano S. Rocha, and Elizabete F. Lucas. "Influence of Demulsifier Aging on Its Performance in Heavy Oil Synthetic Emulsions." Нефтехимия 63, no. 4 (2023): 516–23. http://dx.doi.org/10.31857/s0028242123040068.

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Flow assurance is one of the main challenges in the oil industry. Many factors can affect the oil fluidity, including the oil °API and the formation of water-in-oil (w/o) emulsions that increase the fluid viscosity. The demulsification process aims to decrease as much as possible the water content in the crude oil. Chemical products known as demulsifiers can be used to aid in this process. In laboratory, the chemicals can be evaluated under temperature and water content conditions similar to those in the oil field. In this work, the effect of demulsifier aging on its performance, simulating oi

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38

Umar, Abubakar A., Ismail M. Saaid, Aliyu A. Sulaimon, and Rashidah M. Pilus. "Predicting the Viscosity of Petroleum Emulsions Using Gene Expression Programming (GEP) and Response Surface Methodology (RSM)." Journal of Applied Mathematics 2020 (January 6, 2020): 1–9. http://dx.doi.org/10.1155/2020/6215352.

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Анотація:

This paper summarizes an investigation of certain operating parameters on the viscosity of petroleum emulsions. The production of crude oil is accompanied by emulsified water production, which comes along with various challenges like corroding the transport systems and catalysts poisoning during petroleum refining in the downstream. Several process variables are believed to affect the ease with which emulsified water can be separated from emulsions. Some of the issues have not been extensively examined in the literature. The simplicity with which water is separated from petroleum changes with

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39

Digno, Tagelsir Awad Ahmed. "Effect of Emulsion in Sudanese Crude Oil PalougeField ,Melute Basin." Journal of The Faculty of Science and Technology, no. 6 (January 13, 2021): 89–98. http://dx.doi.org/10.52981/jfst.vi6.607.

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The study was conducted in Palouge Field in Malute Basin Block 3&7 located in the Republic of South Sudan This paper discusses problems related to oil emulsions that have been encountered in Palouge Field. Oil samples collected from 17 Oil Gathering Manifold (OGM), viscosities range from 106cP to over 8159cP (@ 50ºCand API gravities ranged from 13 to 25. Emulsion from 2 up to 33and water cut form (7% water cut to over 77%), Pour Point 30 to 420 .These properties provide an interesting case of operational problems in oil water separation.The main causes of emulsion formation in the investig

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40

Miadonye, Adango, and Mumuni Amadu. "Theoretical Interpretation of pH and Salinity Effect on Oil-in-Water Emulsion Stability Based on Interfacial Chemistry and Implications for Produced Water Demulsification." Processes 11, no. 8 (2023): 2470. http://dx.doi.org/10.3390/pr11082470.

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Анотація:

The petroleum industry produces thousands of barrels of oilfield waters from the initial stage driven by primary production mechanisms to the tertiary stage. These produced waters contain measurable amounts of oil-in-water emulsions, the exact amounts being determined by the chemistry of the crude oil. To meet strict environmental regulations governing the disposal of such produced waters, demulsification to regulatory permissible levels is required. Within the electric double layer theory, coupled with the analytical solutions to the Poisson–Boltzmann Equation, continuum electrostatics approa

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41

Durán, Alberto L., Ediguer E. Franco, Carlos A. B. Reyna, Nicolás Pérez, Marcos S. G. Tsuzuki, and Flávio Buiochi. "Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor." Sensors 21, no. 15 (2021): 5088. http://dx.doi.org/10.3390/s21155088.

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This work shows the application of an ultrasonic multiple-scattering sensor for monitoring water-in-petroleum emulsions. The sensor consists of a commercial ultrasonic transducer with an array of cylindrical scatterers placed in the near field. The scatterers are thin metal bars arranged in rows in front of the transducer. The backscattering signals were analyzed by calculating the wave energy and by a cross-correlation between signal segments; they were also used to determine the propagation velocity in the emulsions. The tests performed used emulsions with water volume concentrations from 0

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42

Abdulla, Firdos M., and Nour Hamid Abdurahman. "DESTABILIZATION OF CRUDE OIL EMULSION VIA ELECTROCOAGULATION METHOD." Journal of Chemical Engineering and Industrial Biotechnology 4, no. 1 (2018): 44–52. http://dx.doi.org/10.15282/jceib.v4i1.3882.

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Formation of emulsions during oil production and processing is a costly problem, both in terms of chemicals used and production losses. Conventional ways of breaking crude oil emulsion are disadvantageous from both economic and environmental perspectives. In this paper, the potentials of electrocoagulation technology in destabilization of crude oil emulsion were investigated. The crude oil was obtained from Petronas Refinery Melaka, Malaysia. For stability performance test, Span 80 was used as emulsifier, while for chemical destabilization performance test, Hexylamine was used. The electrocoag

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43

Pramudono, B., and H. B. Mat. "Malaysian Crude Oil Emulsions : Stability Study." REAKTOR 6, no. 1 (2017): 29. http://dx.doi.org/10.14710/reaktor.6.1.29-34.

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The stability of water-in-oil emulsion of some Malaysian crude oils was studied with particular emphasis on effect of interfacial active components existed in the crude oil, i.e. asphaltene, resin and wax. The emulsion stability was studied by measuring the volume of water or oil phase separated in variation with time, water hold up, and the heights of the sedimenting/coalescing interfaces during the separation at various temperatures. The study investigated the influence of asphaltene, resin and wax on emultion stability if it`s present in the crude oil alone, together or combination one of t

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44

Vinesh Thiruchelvam, Catherine Bemah Abrah, Harvin Kaur, Vinesh Thiruchelvam, Catherine Bemah Abrah, Harvin Kaur. "SUSTAINABLE LIMONENE-BASED ORGANIC DEMULSIFIER." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 148, no. 02-02 (2024): 556–68. https://doi.org/10.36962/pahtei14802-022024-556.

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Анотація:

Crude oils are the most important products in the world as that would later be used to produce petroleum. For many years, the petroleum industry has always faced a challenge in oil production which is oil production being accompanied by water. The water that is being discovered in the oil production could be discovered in two forms which would either be the free water or in the form of emulsion. This research is being conducted to investigate and propose a solution on demulsify-ing water from oil production. Limonene is being used for the demulsifying process. The limonene is being obtained fr

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45

Gurbanov, Guseyn R., Vali K. Nurullayev, and Aysel V. Gasimzade. "The effect of formation temperature and constituent components on rheological parameters of water-oil emulsions." Nafta-Gaz 80, no. 5 (2024): 301–11. http://dx.doi.org/10.18668/ng.2024.05.06.

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This article investigates the correlation between freezing temperature, viscosity, and oil deposit levels in samples from the Muradkhanli and Surakhany fields, as well as in model oils created under laboratory conditions, both in commodity and emulsion forms. The focus is on the influence of asphaltene-resin-paraffin compounds, the primary components of these samples. Laboratory experiments were conducted at temperatures of 10°C, 20°C, 40°C, and 60°C, utilizing crude oil samples with dilution levels ranging from 5% to 40% for emulsified oil. Freezing temperatures and viscosity values were dete

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46

Ganeeva, Yulia M., Tatiana N. Yusupova, Ekaterina E. Barskaya, et al. "The composition of acid/oil interface in acid oil emulsions." Petroleum Science 17, no. 5 (2020): 1345–55. http://dx.doi.org/10.1007/s12182-020-00447-9.

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Abstract In well stimulation treatments using hydrochloric acid, undesirable water-in-oil emulsion and acid sludge may produce and then cause operational problems in oil field development. The processes intensify in the presence of Fe(III), which are from the corroded surfaces of field equipment and/or iron-bearing minerals of the oil reservoir. In order to understand the reasons of the stability of acid emulsions, acid emulsions were prepared by mixing crude oil emulsion with 15% hydrochloric acid solutions with and without Fe(III) and then separated into free and upper (water free) and inter

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47

Sarmas-Farfan, Jordy, Antonio Diaz-Barrios, Teresa E. Lehmann, and Vladimir Alvarado. "Demulsification Kinetics of Water-in-Oil Emulsions of Ecuadorian Crude Oil: Influence of Temperature and Salinity." Energies 18, no. 12 (2025): 3115. https://doi.org/10.3390/en18123115.

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Анотація:

This work focuses on the stability analysis of water-in-oil macroemulsions with a crude oil from the Sacha Field in Ecuador. This field is an important hydrocarbon resource in Ecuador with a typical bottom freshwater drive. The comprehensive stability analysis includes coalescence, water resolution or phase separation, and water–oil interfacial tension and interfacial dilatational viscoelastic modulus measurements over time. Two main parameters, due to their relevance, were controlled in these experiments: water salinity and temperature. The analysis reported here is the first focused on this

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48

Zhang, Juan, Ping Liu, Yuan Gao, and Qingping Yu. "The Effect of Hydrophobic Modified Block Copolymers on Water–Oil Interfacial Properties and the Demulsification of Crude Oil Emulsions." Polymers 16, no. 17 (2024): 2392. http://dx.doi.org/10.3390/polym16172392.

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Анотація:

The demulsification effect of three types of block copolymers, BP123, BPF123, and H123, with the same PEO and PPO segments but different hydrophobic modification groups on crude oil emulsions and the properties of oil–water interfaces were investigated using demulsification experiments, an interfacial tensiometer, and surface viscoelastic and zeta potential instruments in this paper. The results showed that the hydrophobic modification group of the block copolymers had great effects on the demulsification performance. The H123 block copolymers with the strongest hydrophobicity had the best dem

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Abed, Mohammed M., Tariq M. Naife, and Mervat Amin Abdel Kawi Ibrahim. "Advancing green technology: demulsifier preparation and evaluation for crude oil emulsion treatment using corn oil." Iraqi Journal of Chemical and Petroleum Engineering 25, no. 3 (2024): 31–41. http://dx.doi.org/10.31699/ijcpe.2024.3.4.

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Анотація:

Globally, oil production has steadily increased which causes a rise in the coproduction of oil and water emulsions. These emulsions pose significant challenges in transportation and the oil refinery industry, causing high-pressure drops and corrosion problems due to chlorides in the water. Despite advancements in renewable energy, crude oil remains a primary energy source. The crude oil industry faces numerous challenges, including cost emulsion issues. This study developed a corn oil bio-demulsifier (MFK). A unique demulsifier was tested using FTIR, GC-MS, and TGA. Using the bottle test metho

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50

Ismail, Ali I., Ayman M. Atta, Mohamed El-Newehy, and Mohamed E. El-Hefnawy. "Synthesis and Application of New Amphiphilic Asphaltene Ionic Liquid Polymers to Demulsify Arabic Heavy Petroleum Crude Oil Emulsions." Polymers 12, no. 6 (2020): 1273. http://dx.doi.org/10.3390/polym12061273.

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Asphaltenes are heavy petroleum crude oil components which limit the production of petroleum crude oil due to their aggregation and their stabilization for all petroleum crude oil water emulsions. The present study aimed to modify the chemical structures of isolated asphaltenes by converting them into amphiphilic polymers containing ionic liquid moieties (PILs) to demulsify the emulsion and replace the asphaltene layers surrounding the oil or water droplets in petroleum crude oil emulsions. The literature survey indicated that no modification occurred to produce the PILs from the asphaltenes.

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