Download or read book Study on Wax Deposition of Heavy Crude Oil in Pipeline Transportation by Using Oil in Water Emulsion Method written by Nor Salwani Ismail and published by . This book was released on 2013 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wax Deposition written by Zhenyu Huang and published by CRC Press. This book was released on 2016-03-09 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wax Deposition: Experimental Characterizations, Theoretical Modeling, and Field Practices covers the entire spectrum of knowledge on wax deposition. The book delivers a detailed description of the thermodynamic and transport theories for wax deposition modeling as well as a comprehensive review of laboratory testing for the establishment of appropr

Download or read book Study on Wax Deposition of Heavy Crude Oil in Pipelines written by Nadia Eliza Natrah Jamaluddin and published by . This book was released on 2014 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization Demulsification and Transportation of Heavy Crude Oil Via Oil in water o w Emulsion written by Chew Fern Tan and published by . This book was released on 2012 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of heavy crude oil is limited due to its high viscosity. It is expected to increase in the future as low viscosity crudes are depleted. The high viscosity lead to increase of pump energy as it creates high pressure drop. In order to reduce the viscosity of the heavy crude, it is suggested to mix it with water and optimum emulsifiers to create a lower viscous fluid, oil-in-water (O/W) emulsions. In this study, both chemical and physical properties of O/W emulsion that prepared by using cocoamide DEA (nonionic and biodegradable surfactant that synthesis from coconut oil) and two types of conventional chemical emulsifiers (Span 83 and Triton X-100) were investigated. O/W emulsions with two different ratios (50-50% and 65-35%) were prepared at three different mixing speed (500rpm, 1000rpm and 1500rpm) with the concentrations (0.2 wt%, 0.5 wt% and 1.0 wt%) of each emulsifier. These emulsions were tested for relative rates of water separation (stability test), viscosity, shear stress and shear rate at varied temperature and stirring speed of Brookfield viscometer. While the droplet size was carried out by using Carl Zeiss Research Microscope and its software. Results sho that Span 83 at 1.0 wt% mixed with 65-35% O/W with 1500rpm mixing speed obtained the most stable emulsion for transportation compared to the other two. Then, its chemical properties were tested via Fourier Transform Infrared (FTIR). These chemical properties are important in order to predict the occurrence of wax deposition during the transportation. The transportation of the emulsion then carried out by using the laboratory scale pipeline. Demulsification is the process of separation of water from crude oil. Crude oil need to be separate efficiently and quickly from the water to allow further treatment. This is to ensure the crude oil value can be maximized and the operating cost can be minimized. Demulsifiers (Hexylamine and Coco Amine) with different concentrations (0.2 wt% and 0.5 wt%) were used for transportation. The relative rates of water separation were characterized via beaker test. Coco amine that synthesized from coconut oil promotes the best coalescene of droplets compared with the conventional demulsifier that used in this study which is hexylamine.

Download or read book Pipeline Transportation of Heavy Crude Oil in water Emulsion written by Liyana Nadirah Mat Suli and published by . This book was released on 2010 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing world energy demand, heavy crude oils represent a significant energy supply that will play an important role. However these petroleum products are known to present technical challengers in all phase operation which is reservoir, transportation, and refining. The crude oil has high viscosity that would be challenge and difficult to transport via pipeline. This researched focus on two parts, first factors that effect stability of crude oil in water during transportation part. Second part is breaking oil in water emulsions. These investigations used 4 different types of surfactant to study stability part, and two types of demulsifiers for breaking the emulsion. The result showed increasing of oil content, the speed and temperature mixing of the emulsion resulted in increased emulsion stability. Span 80 is the most stable emulsifier for emulsion stability compared to the other surfactant. The graph plot between shear rate and shear stress shows the behavior of the crude oil. Demulsification of the stable crude oil in water emulsion was achieved by using hexylamine with 2% concentration which is the best demusifier.

Download or read book Pipeline Transportation for Heavy Crude Oil Via Oil in Water Emulsions written by Abdurahman Nour and published by LAP Lambert Academic Publishing. This book was released on 2011 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the combination of an increase in world energy demand and the decline of conventional oils, heavy crude oils have been presented as a relevant hydrocarbons resource for use in the future. Hydrocarbon resources are very important given that they account for approximately 65% of the world's overall energy resources. Currently, there are three general approaches for transportation of heavy and extra heavy oil: viscosity reduction, drag minimization and in-situ oil upgrading. This book introduces Another promising pipeline technique is the transport of viscous crudes as concentrated oil-in-water (O/W) emulsions.

Download or read book Oil Pipeline Wax Disposition Inhibition Using Chemical Methods written by Norseri Mohd Mustaffa and published by . This book was released on 2010 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oil pipeline wax deposition is one of the major problems facing in the crude oil transportation flow line from the offshore to onshore through pipe. The problems occur because of the crude oil fluids temperature is decrease during the transportation process and cause the solidifying process occurs. The deposited wax is normally being removed using pigging process. In the present work, chemical method is introduced as an alternative solution for the wax deposition problems in pipelines. This method used CaCl2.2H2O and NaOCl as the inhibitor. The waxes is initially drowned in the NaOCl solutions to soften the waxes and remove the water content inside the sample; waxes. While drawn the sample, the solution with the waxes is stir to get the condition flowing through the pipeline. Then with fixed molarity of the CaCl2.2H2O solution, it is added to the NaOCl solution which has being reacted with the waxes samples. After a range of period; 24 hours, the result obtained is observed and recorded. This experiment is then repeated with different volume of NaOCl, using heat to study about the heat effect and also using acid to remove the waxes. The experimental results showed that with volume of 50ml NaOCl and 0.0071 M of CaCl2.2H2O, the waxes can break into small pieces and no weight loss to the wall like using 30 ml of NaOCl solutions with 70% weight loss from the initial sample weight. While using the heat, the waxes can be removes in 120s and gets 50% efficiencies for only 30 ml volume of NaOCl. This reaction has being tested gradually to ensure its ability to remove wax from the pipeline. The removal process has being removed using the chemical reactions between CaCl2.2H2O and NaOCl. The reaction of the chemicals and waxes was done in lab scale and the progress has being look properly in schedule time to ensure it properly removed. Inhibition of waxes using chemicals method finally founds it solutions which is means by reaction between Sodium Hypochlorite with Calcium Chloride Dihidrates together with bleaching theory, the problems can be eliminated and this kind of technique is more effectual based on its capability to recycle the chemical used back and need few periods to complete each reactions.

Download or read book Petroleum Abstracts written by and published by . This book was released on 1995-08 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essentials of Flow Assurance Solids in Oil and Gas Operations written by Abdullah Hussein and published by Gulf Professional Publishing. This book was released on 2022-10-19 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow assurance solids deposition is one of the main challenges in oil and gas production operations with millions of dollars spent annually on their mitigation. Essentials of Flow Assurance Solids in Oil and Gas Operations works as an all-inclusive reference for engineers and researchers, covering all the different types of solids that are commonly encountered in oil and gas fields. Structured to flow through real-world operations, the reference branches through each solid deposit problem where the root causes are as well as modeling, monitoring, characterization, and management strategies, all comprehensively reviewed in the light of contemporary research breakthroughs. Backed by several field case studies, Essentials of Flow Assurance Solids in Oil and Gas Operations gives petroleum and reservoir engineers a resource to correlate between the theoretical fundamentals and field practical applications allowing for sustainable and optimal operations. - Provides the main operations of oil and gas fields, the characteristics of produced fluids, and the main flow assurance challenges - Furnishes the basic principles of deposits formation and mitigation, starting with a full investigation of the problems, then mechanisms, causes, predictions, modelling, and sample analysis, followed by management - Distinctively discusses the operational and environmental implications of flow assurance solids and their management using chemical and nonchemical methods - Teaches engineers through impactful visuals and data sets included in every chapter

Download or read book The Deposition and Rheology of Organic Gels written by Ramachandran Venkatesan and published by . This book was released on 2004 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental and Modeling Studies of Wax Deposition in Crude Oil Carrying Pipelines written by Sandeep Todi and published by . This book was released on 2005 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Processing of Heavy Crude Oils written by Ramasamy Marappa Gounder and published by . This book was released on 2019-12-18 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wax Deposition in Crude Oil Transport Lines and Wax Estimation Methods written by Fadi Alnaimat and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Petroleum industry is one of the major industries serving the energy demands. Flow assurance is essential for providing continuous fuel supply. Wax deposition is the main issue that affects flow assurance or reduces the efficiency of transporting crude oil. As the maintenance cost of repairing and troubleshooting is very high, addressing issues related to flow assurance becomes critical in the petroleum industry. This chapter will explore methods used for reducing, cleaning, and monitoring deposition of wax. Wax dissolved in the crude oil gets crystallized causing accumulation across the pipe walls once the bulk temperature of the crude oil gets lower than wax appearance temperature (WAT). Mechanical, thermal, chemical, and microbial methods highlighting general practice in the industry are discussed in this chapter. Next, the direct techniques providing information about the numerical wax deposition models used along with scientific measurement techniques are emphasized. Later, the indirect measurement techniques are discussed providing information about the external probing and nondestructive techniques to obtain information about wax layer deposition inside the pipe. The role of artificial intelligence and use of fuzzy logic for effective wax prediction or in developing the existing wax numerical models are emphasized in the last section.

Download or read book Guide to the Practical Use of Chemicals in Refineries and Pipelines written by Johannes Karl Fink and published by Gulf Professional Publishing. This book was released on 2016-05-09 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guide to Practical Use of Chemicals in Refineries and Pipelines delivers a well-rounded collection of content, references, and patents to show all the practical chemical choices available for refinery and pipeline usage, along with their purposes, benefits, and general characteristics. Covering the full spectrum of downstream operations, this reference solves the many problems that engineers and managers currently face, including corrosion, leakage in pipelines, and pretreatment of heavy oil feedstocks, something that is of growing interest with today's unconventional activity. Additional coverage on special refinery additives and justification on why they react the way they do with other chemicals and feedstocks is included, along with a reference list of acronyms and an index of chemicals that will give engineers and managers the opportunity to recognize new chemical solutions that can be used in the downstream industry. - Presents tactics practitioners can use to effectively locate and utilize the right chemical application specific to their refinery or pipeline operation - Includes information on how to safely perform operations with coverage on environmental issues and safety, including waste stream treatment and sulfur removal - Helps readers understand the composition and applications of chemicals used in oil and gas refineries and pipelines, along with where they should be applied, and how their structure interacts when mixed at the refinery

Download or read book Effect of Rotation Speed and Temperature to Wax Deposition for Malaysian Crude Oil written by Fazerah Moin and published by . This book was released on 2015 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wax depositions have been a major problem in the oil and gas field. It generates additional pressure drop and causes fouling which ultimately increase the operating cost during production, transportation, and handling of waxy crude oil. The problem are initiated due to the decrease of crude oil temperature during the transportation process which eventually caused the solidified of the crude oil to form wax. The deposited wax is normally removed by pigging process. The wax deposition of the crude oil in the pipeline makes the flow area smaller and smaller with time, which then influences the transportation capacity and the operation safety of the pipeline. There are many factors that influence the wax deposition: the crude components, the carbon atom distribution of the paraffin, the oil temperature, the temperature difference between the oil and the pipe wall, the deposition duration, the flow rate, and so on. In this research the effect of rotation speed was investigated toward the wax deposition. In addition, the temperature effect to the wax solubility is also been studied. The experimental work were conducted using cold finger device. Two different type of wax inhibitor are used in this study which are cyclohexane and toluene. As rotation speed is increased, the wax deposit obtained at the cold finger is decreased. However, at the certain minimum point, the amount of wax deposit is increased. For the wax solubility test, temperature was found to be the main effect to the wax. At the highest temperature, the solubility of paraffin wax is increased.

Download or read book Evaluation of Wax Deposition and Its Control During Production of Alaska North Slope Oils written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to increasing oil demand, oil companies are moving into arctic environments and deep-water areas for oil production. In these regions of lower temperatures, wax deposits begin to form when the temperature in the wellbore falls below wax appearance temperature (WAT). This condition leads to reduced production rates and larger pressure drops. Wax problems in production wells are very costly due to production down time for removal of wax. Therefore, it is necessary to develop a solution to wax deposition. In order to develop a solution to wax deposition, it is essential to characterize the crude oil and study phase behavior properties. The main objective of this project was to characterize Alaskan North Slope crude oil and study the phase behavior, which was further used to develop a dynamic wax deposition model. This report summarizes the results of the various experimental studies. The subtasks completed during this study include measurement of density, molecular weight, viscosity, pour point, wax appearance temperature, wax content, rate of wax deposition using cold finger, compositional characterization of crude oil and wax obtained from wax content, gas-oil ratio, and phase behavior experiments including constant composition expansion and differential liberation. Also, included in this report is the development of a thermodynamic model to predict wax precipitation. From the experimental study of wax appearance temperature, it was found that wax can start to precipitate at temperatures as high as 40.6 C. The WAT obtained from cross-polar microscopy and viscometry was compared, and it was discovered that WAT from viscometry is overestimated. From the pour point experiment it was found that crude oil can cease to flow at a temperature of 12 C. From the experimental results of wax content, it is evident that the wax content in Alaskan North Slope crude oil can be as high as 28.57%. The highest gas-oil ratio for a live oil sample was observed to be 619.26 SCF/STB. The bubblepoint pressure for live oil samples varied between 1600 psi and 2100 psi. Wax precipitation is one of the most important phenomena in wax deposition and, hence, needs to be modeled. There are various models present in the literature. Won's model, which considers the wax phase as a non-ideal solution, and Pedersen's model, which considers the wax phase as an ideal solution, were compared. Comparison indicated that Pedersen's model gives better results, but the assumption of wax phase as an ideal solution is not realistic. Hence, Won's model was modified to consider different precipitation characteristics of the various constituents in the hydrocarbon fraction. The results obtained from the modified Won's model were compared with existing models, and it was found that predictions from the modified model are encouraging.

Download or read book Practical Advances in Petroleum Processing written by Chang Samuel Hsu and published by Springer Science & Business Media. This book was released on 2007-01-10 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes topics not found together in books on petroleum processing: economics, automation, process modeling, online optimization, safety, environmental protection Combines overviews of petroleum composition, refinery processes, process automation, and environmental protection with comprehensive chapters on recent advances in hydroprocessing, FCC, lubricants, hydrogen management Gives diverse perspectives, both geographic and topical, because contributors include experts from eight different countries in North America, Europe and Asia, representing oil companies, universities, catalyst vendors, process licensors, consultants and engineering contractors