Download or read book Asphaltene Precipitation and Its Effects on CO2 based Oil Recovery Processes written by Xiaoqi Wang and published by . This book was released on 2010 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: During a CO2-based oil recovery process, asphaltene precipitation occurs after a sufficient amount of CO2 is dissolved into the original crude oil under the actual reservoir conditions. Thus, the physicochemical properties of the original crude oil can be dramatically changed due to the in-situ deasphalting process. Accordingly, the deasphalted crude oil becomes less viscous and much easier to be recovered. On the other hand, the precipitated asphaltenes can cause reservoir permeability reduction and wettability alteration, which may greatly hinder the oil recovery.

Download or read book Asphaltene Deposition written by Francisco M. Vargas and published by CRC Press. This book was released on 2018-05-16 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: As global consumption of fossil fuels such as oil increases, previously abundant sources have become depleted or plagued with obstructions. Asphaltene deposition is one of such obstructions which can significantly decrease the rate of oil production. This book offers concise yet thorough coverage of the complex problem of asphaltene precipitation and deposition in oil production. It covers fundamentals of chemistry, stabilization theories and mechanistic approaches of asphaltene behavior at high temperature and pressure. Asphaltene Deposition: Fundamentals, Prediction, Prevention, and Remediation explains techniques for experimental determination of asphaltene precipitation and deposition and different modeling tools available to forecast the occurrence and magnitude of asphaltene deposition in a given oil field. It discusses strategies for mitigation of asphaltene deposition using chemical inhibition and corresponding challenges, best practices for asphaltene remediation, current research, and case studies.

Download or read book Asphaltene Precipitation and Its Effects on a Solvent based Heavy Oil Recovery Process written by Peng Luo and published by . This book was released on 2009 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: During a solvent-based heavy oil recovery process, such as vapour extraction (VAPEX), asphaltene precipitation occurs after a sufficient amount of solvent is dissolved into a heavy oil under certain reservoir conditions. Thus, such an in-situ deasphalted heavy oil has rather different physicochemical properties from those of the original heavy crude oil in the reservoir. In particular, it is much less viscous so that the heavy oil recovery is significantly enhanced.

Download or read book Oil Recovery Mechanisms and Asphaltene Precipitation Phenomenon in CO2 Flooding Processes written by Meng Cao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphaltene Stability in Crude Oil During Carbon Dioxide Injection and Its Impact on Oil Recovery written by Sherif Mohamed Hisham Fakher and published by . This book was released on 2019 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Crude oils are usually associated with many compounds, some of which are favorable and others, which are not. One of the most unfavorable components of crude oil that pose severe operational problems and decreases oil production significantly are asphaltenes. These compounds are solids that are homogenized in the crude oil at room temperature but tend to separate from solution when agitated. They can deposit in the reservoir pores, wellbore, and transportation pipelines thus causing severe operational problems and oil recovery reduction. Even though researchers have been studying asphaltenes for more than 100 years, there is still an ambiguity concerning asphaltene structure and characteristics since asphaltenes have no unique structure. This research performed a comprehensive data analysis on both laboratory studies and field cases involving asphaltene in order to provide a generalized guideline on asphaltene properties asphaltene stability. The analysis was based on more than 200 references involving more than 4000 experiments and 19 field studies. Two statistical analysis tools were used, including histograms and boxplots. After determining the factor impacting asphaltene, this research conducted experiments to understand the impact of these factors on asphaltene stability in crude oil during carbon dioxide (CO2) injection in unconventional shale nanopores, since very limited research has been conducted in this area. The research investigated the impact of several factors including pressure, temperature, oil viscosity, pore size, porous media thickness, and heterogeneity on asphaltene precipitation, pore plugging, and oil recovery reduction. A Pareto Plot was also generated to determine the factor that had the strongest impact on asphaltene instability in the crude oil"--Abstract, page iv.

Download or read book CO2 Storage Coupled with Enhanced Oil Recovery written by Kun Sang Lee and published by Springer Nature. This book was released on 2020-03-09 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and detailed description of the various mechanisms of the CCS–EOR process. Whereas previous texts have primarily focused on carbon capture and storage (CCS) and enhanced oil recovery (EOR) separately, this book provides a general overview of both technologies when used together. Coupled CCS–EOR technology has become increasingly important, as it overcomes the respective shortcomings of the two technologies. The book presents an integrated numerical model including the hysteresis effect, solubility trapping, miscibility, and formation damage by asphaltene deposition. The experimental and model-based evaluation of fluid properties is also discussed. The book concludes by discussing the latest research into CO2 storage coupled with EOR, most notably performance control by including additives in CO2 injection, and CO2 injection into shale reservoirs. Ideally suited for graduate students and researchers in the fields of carbon capture, utilisation, and storage, the book shares essential insights into maximising the efficiency of CCS and EOR alike.

Download or read book Asphaltene Deposition Simulation in Porous Media During CO2 Injection Using Lattice Boltzmann Method written by Navid Eskandari and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide (CO2) injection in oil reservoirs is a potential means of Enhanced Oil Recovery (EOR) and reducing greenhouse gas. Change in the thermodynamic condition and composition due to the CO2 injection process may trigger the asphaltene precipitation and deposition which directly affects the efficiency of the EOR process. Predicting the possibility of the asphaltene issue under different operating conditions can help the oil industry for better process design, handle the potential operational problems and estimate the production cost. In spite of, the existence of different modeling approaches based on conventional numerical methods, the lack of a flexible and more comprehensive modeling approach is inevitable. The new and advanced numerical method, called the Lattice Boltzmann Method (LBM) covers the limitations of the conventional numerical methods in dealing with complex boundary conditions and incorporating the microscopic interactions. This study is aiming at the modeling of the Asphaltene deposition, and it's effect on the fluid flow in porous media during an immiscible injection of CO2 with applying the LBM as the main simulator engine that gets fed by the given phase behavior to take the asphaltene deposition into account as well. Porosity and CO2 injection velocity are the changing factors in this study. Applying the same condition on two mediums, it has been seen that the recovery factor is 22.5% higher and deposited asphaltene is 2.56% lower in a more porous medium that is attributed to uniform pore size distribution and higher absolute permeability of the more porous case. Furthermore, the fingering phenomena seem to be high in a less porous medium which causes an early breakthrough. Studies on the CO2 injection velocity effect showed that by increasing CO2 injection velocity by 2 times and 3 times, the recovery factor increases 4% and decreases 6%, respectively. A decrease in recovery factor is attributed to the asphaltene deposition at which the deposited asphaltene is two times higher at injection velocity of 3.

Download or read book Mechanisms of Oil Recovery During Cyclic CO2 Injection Process written by Ali Abedini and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Enhanced Oil Recovery Processes written by Ariffin Samsuri and published by BoD – Books on Demand. This book was released on 2019-12-18 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerned with production decline, shortages of new oil reserves, and increasing world energy demand, the oil sector continues to search for economic and efficient techniques to enhance their oil recovery from the existing oil field using several enhanced oil recovery techniques (EOR)methods. Despite its highefficiency, widely acclaimed potentials, and limitations, the Low Salinity Water Flooding (LSWF), hybrid, and nanotechnology applications have gained vast interest with promising future to increase ultimate oil recovery, tackle operational challenges, reduce environmental damage, and allow the highest feasible recoveries with lower production costs. This synergistic combination has opened new routes for novel materials with fascinating properties. This book aims to provide an overview of EOR technology such as LSWF, hybrid, and nanotechnology applications in EOR processes.

Download or read book Asphaltene Precipitation During Solvent Injection at Different Reservoir Conditions and Its Effects on Heavy oil Recovery from Oilsands written by Laura Smith Moreno Arciniegas and published by . This book was released on 2014 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solvent injection at elevated temperatures (hot solvent or steam-solvent hybrid injection) into heavy-oil/bitumen reservoirs is a promising recovery process. It increases oil mobility via oil dilution, molecular diffusion, and gravity drainage. Meanwhile, injection of light hydrocarbon solvents creates disequilibrium between resins and asphaltene in the oil. Then, asphaltene starts to flocculate and bond to each other in the fluid and on the rock surface. Consequently, permeability reduction due to pore plugging and wettability alteration may take place affecting the underground upgrading and recovery process negatively. In this thesis, these asphaltene related concerns during solvent injection at different reservoir conditions were investigated through experimental work. A combination of two heavy-oil compositions and four solvent types were tested at different pressure and temperatures to determine the optimal solvent type and operational conditions minimizing the negative effect of asphaltene. The results obtained from visual PVT cell (testing fluid behaviour) and sandpack system (testing heavy-oil recovery) experiments were cross-checked. The roles of solvent type and operation conditions (mainly temperature) on the heavy-oil recovery, wettability alteration, and pore plugging were clarified and presented quantitatively and visually.

Download or read book Heavy Crude Oil Recovery written by E. Okandan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the last 10 years the world has come to a point where the easily explorable oil deposits have now been found, and it is anticipated that such deposits will be depleted by the beginning of the Twenty-first Century. However, the increasing demand of man kind for energy has caused technologists to look into ways of find ing new sources or to reevaluat:e unconventional sources which, in the past, have not been economical. In this respect, heavy crude and tar sand oils are becoming important in fulfilling the world's energy requirements. What are heavy crude and tar sand oils? There is still some confusion as to their definitions, inasmuch as they vary among organizations and countries. In an effort to set agreed meanings, UNITAR, in a meeting in February 1982 in Venezuela, proposed the following definitions (see also Table 1): 1. Heavy crude oil and tar sand oil are petroleum or petroleum like liquids or semi-solids naturally occurring in porous media. The porous media are sands, sandstone, and carbonate rocks. 2. These oils will be characterized by viscosity and density. Viscosity will be used to define heavy crude oil and tar sand oil, and density (oAPI) will be used when viscosity measurements are not available. 3. Heavy crude oil has a gas-free viscosity of 100-10000 mPa.s (cp) 3 o at reservoir temperatures, or a density of 943 kg/m (20 API) 3 o o to 1000 kg/m (10 API) at 15.6 C and at atmospheric oressure.

Download or read book Asphaltene Deposition Control by Chemical Inhibitors written by Ali Ghamartale and published by Gulf Professional Publishing. This book was released on 2021-08-21 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphaltene Deposition Control by Chemical Inhibitors: Theoretical and Practical Prospects is the most advanced reference focused on chemical dispersants and inhibitors from both an experimental and modeling viewpoint. Adequate knowledge of the effective parameters in each treatment method, interactions, mechanisms and economic viewpoints involved in asphaltene treatment are crucial for future development, recovery forecast, and reserve prediction, hence this reference delivers on all these aspects. Sections cover the environmental impacts of asphaltene deposition, prevention methods, and experimental methods, both static and dynamic, to test the effectiveness of inhibitors on restricting asphaltene deposition. Rounding out with modeling methods used to simulate asphaltene-inhibitor interactions and a workflow to select suitable inhibitors by technical, economic and environmental considerations, this book will give today’s engineers and researchers the right tool to mitigate formation damage in a sustainably responsible way. Focuses on inhibitors, mitigators and the interplay between the asphaltene-inhibitors Helps readers learn from experimental models and replicate treatments with screening workflows Includes case studies that help readers make sustainable and economically-sound decisions on treatments

Download or read book Alternating Injection of Steam and CO2 for Thermal Recovery of Heavy Oil written by Kazeem Akintayo Lawal and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reservoir Formation Damage written by Faruk Civan and published by Elsevier. This book was released on 2011-08-30 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir Formation Damage, Second edition is a comprehensive treatise of the theory and modeling of common formation damage problems and is an important guide for research and development, laboratory testing for diagnosis and effective treatment, and tailor-fit- design of optimal strategies for mitigation of reservoir formation damage. The new edition includes field case histories and simulated scenarios demonstrating the consequences of formation damage in petroleum reservoirsFaruk Civan, Ph.D., is an Alumni Chair Professor in the Mewbourne School of Petroleum and Geological Engineering at the University of Oklahoma in Norman. Dr. Civan has received numerous honors and awards, including five distinguished lectureship awards and the 2003 SPE Distinguished Achievement Award for Petroleum Engineering Faculty. - Petroleum engineers and managers get critical material on evaluation, prevention, and remediation of formation damage which can save or cost millions in profits from a mechanistic point of view - State-of-the-Art knowledge and valuable insights into the nature of processes and operational practices causing formation damage - Provides new strategies designed to minimize the impact of and avoid formation damage in petroleum reservoirs with the newest drilling, monitoring, and detection techniques

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 Innovations in Enhanced and Improved Oil Recovery New Advances written by Mansoor Zoveidavianpoor and published by BoD – Books on Demand. This book was released on 2024-04-24 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book navigates the evolving landscape of Enhanced Oil Recovery (EOR) and Improved Oil Recovery (IOR), covering diverse topics such as lithological dynamics in CO2-EOR, the impact of asphaltene precipitation in WAG implementation, progress in CO2-EOR and storage technology, in situ foam generation for unconventional fractured reservoirs, electromagnetic radiation effects on heavy oil upgrading, advancements in hydraulic fracturing, in situ synthesis of nanoparticles, and operational insights in the Bakken Shale. This comprehensive volume serves as an indispensable resource for professionals and researchers in the ever-changing field of enhanced and improved oil recovery.

Download or read book Formation Damage during Improved Oil Recovery written by Bin Yuan and published by Gulf Professional Publishing. This book was released on 2018-05-31 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formation Damage during Improved Oil Recovery: Fundamentals and Applications bridges the gap between theoretical knowledge and field practice by presenting information on formation damage issues that arise during enhanced oil recovery. Multi-contributed technical chapters include sections on modeling and simulation, lab experiments, field case studies, and newly proposed technologies and methods that are related to formation damage during secondary and tertiary recovery processes in both conventional and unconventional reservoirs. Focusing on both the fundamental theories related to EOR and formation damage, this reference helps engineers formulate integrated and systematic designs for applying EOR processes while also considering formation damage issues. Presents the first complete reference addressing formation damage as a result of enhanced oil recovery Provides the mechanisms for formation damage issues that are coupled with EOR Suggests appropriate preventative actions or responses Delivers a structured approach on how to understand the fundamental theories, practical challenges and solutions