Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Improved Oil Recovery By Sequential Waterflooding And By Injection Of Low Salinity Brine
Download Improved Oil Recovery By Sequential Waterflooding And By Injection Of Low Salinity Brine full books in PDF, epub, and Kindle. Read online Improved Oil Recovery By Sequential Waterflooding And By Injection Of Low Salinity Brine ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Improved Oil Recovery by Sequential Waterflooding and by Injection of Low Salinity Brine by : Nina Loahardjo
Download or read book Improved Oil Recovery by Sequential Waterflooding and by Injection of Low Salinity Brine written by Nina Loahardjo and published by . This book was released on 2009 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterflooding is by far the most commonly applied method of increasing oil recovery over that given by primary production. Reservoir wettability has been shown to be a key factor in determining the microscopic displacement efficiency in the swept regions of a waterflood. Reservoir wettability depends on complex crude oil/brine/rock (COBR) interactions. Numerous laboratory investigations and a growing number of pilot field studies show that oil recovery can be improved by injection of low salinity brine. This thesis includes study of the effect of low salinity flooding on oil recovery for selected reservoirs. Observations on the reproducibility of oil recovery behavior led to development of a new approach to improved oil recovery based on repeated waterflooding without change in brine composition. Laboratory studies indicated that the presence of the crude/oil interface was essential to oil recovery by sequential waterflooding. Crude properties have been measured for 27 crude oils. The oils were characterized according to density, viscosity, refractive index, surface tension, acid and base numbers, composition and vapor pressure. The effects of pH and salinity on interfacial tension were determined for a wide range of crude oils derived from both sandstone and carbonate reservoirs. A large majority of the oils exhibited low interfacial tensions at both low and high pH. For the selected COBR reservoir combinations, increase in oil recovery by low salinity waterflooding was often, but not always observed. The cost of recovering cores from a reservoir is very high. Furthermore, reservoir heterogeneity often limits the number of core samples that can be used in duplicate experiments. After testing, reservoir cores were therefore cleaned and reused. For a core that showed large response to reduction in injection brine salinity, it was found that the initial recovery, first measured for seawater, could not be reproduced, with recovery still being close to that given by the brine of lowest salinity. As a test of reproducibility, cores that had been waterflooded with high salinity brine were taken back to initial water saturation by oil flooding and re-flooded without change in the injection brine composition. For 15 out of 18 tests that included both sandstone and limestone, residual oil saturation decreased from one flood to the next. Reductions in residual oil saturation were not observed for recovery of refined oil. Material balances for sequential flooding were checked against Dean-Stark extraction and by tracer tests. The overall trend of reduction in residual oil saturation was confirmed by MRI imaging of changes in saturation distribution during sequential floods. Further investigation of this new approach to tertiary recovery is proposed through relatively low-cost single-well field tests.
Book Synopsis Coreflooding Oil Displacements with Low Salinity Brine by : Scott Michael Rivet
Download or read book Coreflooding Oil Displacements with Low Salinity Brine written by Scott Michael Rivet and published by . This book was released on 2009 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterflooding is applied worldwide to improve oil recovery. Evidence of enhancement in waterflood efficiency by injecting low salinity brine has been observed in the laboratory and in the field. The technology is of considerable interest because of its simplicity and its low cost. In this work, laboratory corefloods were conducted to study the effect of low salinity waterflooding on oil recovery rate, residual oil saturation and relative permeability. Evidence of low salinity enhanced oil recovery was observed some of these corefloods. Improved oil recovery was generally accompanied by an increase in water-wetness, based on an observed decrease in end-point water relative permeability and an increase in end-point oil relative permeability. Injecting low salinity brine produced a persistent wettability alteration that eliminated oil recovery salinity dependence in subsequent floods. However, the sensitivity to salinity was restored by re-aging the core with the same oil. Tertiary low salinity recovery reported by other researchers was never observed. Low salinity waterflooding produced no oil recovery benefit in cores that were initially strongly water-wet. Based on these results, a working hypothesis is that injecting low salinity brine induces a wettability alteration from mixed-wet to water-wet in some cores and that this change improves the oil recovery. More experiments are needed both to identify the characteristics of the cores that are favorable for low salinity enhanced oil recovery and to better understand and quantify the mechanism.
Book Synopsis Hybrid Enhanced Oil Recovery Using Smart Waterflooding by : Kun Sang Lee
Download or read book Hybrid Enhanced Oil Recovery Using Smart Waterflooding written by Kun Sang Lee and published by Gulf Professional Publishing. This book was released on 2019-04-03 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Enhanced Oil Recovery Using Smart Waterflooding explains the latest technologies used in the integration of low-salinity and smart waterflooding in other EOR processes to reduce risks attributed to numerous difficulties in existing technologies, also introducing the synergetic effects. Covering both lab and field work and the challenges ahead, the book delivers a cutting-edge product for today’s reservoir engineers. Explains how smart waterflooding is beneficial to each EOR process, such as miscible, chemical and thermal technologies Discusses the mechanics and modeling involved using geochemistry Provides extensive tools, such as reservoir simulations through experiments and field tests, establishing a bridge between theory and practice
Book Synopsis Low-Salinity Waterflooding to Improve Oil Recovery - Historical Field Evidence by :
Download or read book Low-Salinity Waterflooding to Improve Oil Recovery - Historical Field Evidence written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterflooding is by far the most widely applied method of improved oil recovery. Crude oil/brine/rock interactions can lead to large variations in the displacement efficiency of wa-terfloods. Laboratory water-flood tests and single-well tracer tests have shown that injection of dilute brine can increase oil recovery, but work designed to test the method on a field scale has not yet been undertaken. Historical waterflood records could unintentionally provide some evidence of improved recovery from waterflooding with lower salinity brine. Nu-merous fields in the Powder River basin of Wyoming have been waterflooded using low salinity brine (about 500 ppm) obtained from the Madison limestone or Fox Hills sandstone. Three Minnelusa formation fields in the basin were identified as potential candidates for waterflood comparisons based on the salinity of the connate and injection water. Historical pro-duction and injection data for these fields were obtained from the public record. Field waterflood data were manipulated to be displayed in the same format as laboratory coreflood re-sults. Recovery from fields using lower salinity injection wa-ter was greater than that using higher salinity injection wa-ter--matching recovery trends for laboratory and single-well tests.
Book Synopsis Improved Water Flooding Through Injection Brine Modification by : Charles Phillip Thomas
Download or read book Improved Water Flooding Through Injection Brine Modification written by Charles Phillip Thomas and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Crude oil/brine/rock interactions can lead to large variations in thedisplacement efficiency of waterflooding, by far the most widely applied methodof improved oil recovery. Laboratory waterflood tests show that injection ofdilute brine can increase oil recovery. Numerous fields in the Powder Riverbasin have been waterflooded using low salinity brine (about 500 ppm) from theMadison limestone or Fox Hills sandstone. Although many uncertainties arise inthe interpretation and comparison of field production data, injection of lowsalinity brine appears to give higher recovery compared to brine of moderatesalinity (about 7,000 ppm). Laboratory studies of the effect of brine compositionon oil recovery cover a wide range of rock types and crude oils. Oil recoveryincreases using low salinity brine as the injection water ranged from a low of nonotable increase to as much as 37.0% depending on the system being studied. Recovery increases using low salinity brine after establishing residual oilsaturation (tertiary mode) ranged from no significant increase to 6.0%. Testswith two sets of reservoir cores and crude oil indicated slight improvement inrecovery for low salinity brine. Crude oil type and rock type (particularly thepresence and distribution of kaolinite) both play a dominant role in the effect thatbrine composition has on waterflood oil recovery.
Book Synopsis Low Salinity and Engineered Water Injection for Sandstone and Carbonate Reservoirs by : Emad Walid Al Shalabi
Download or read book Low Salinity and Engineered Water Injection for Sandstone and Carbonate Reservoirs written by Emad Walid Al Shalabi and published by Gulf Professional Publishing. This book was released on 2017-06-14 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low Salinity and Engineered Water Injection for Sandstone and Carbonate Reservoirs provides a first of its kind review of the low salinity and engineered water injection (LSWI/EWI) techniques for today’s more complex enhanced oil recovery methods. Reservoir engineers today are challenged in the design and physical mechanisms behind low salinity injection projects, and to date, the research is currently only located in numerous journal locations. This reference helps readers overcome these challenging issues with explanations on models, experiments, mechanism analysis, and field applications involved in low salinity and engineered water. Covering significant laboratory, numerical, and field studies, lessons learned are also highlighted along with key areas for future research in this fast-growing area of the oil and gas industry. After an introduction to its techniques, the initial chapters review the main experimental findings and explore the mechanisms behind the impact of LSWI/EWI on oil recovery. The book then moves on to the critical area of modeling and simulation, discusses the geochemistry of LSWI/EWI processes, and applications of LSWI/EWI techniques in the field, including the authors’ own recommendations based on their extensive experience. It is an essential reference for professional reservoir and field engineers, researchers and students working on LSWI/EWI and seeking to apply these methods for increased oil recovery. Teaches users how to understand the various mechanisms contributing to incremental oil recovery using low salinity and engineering water injection (LSWI/EWI) in sandstones and carbonates Balances guidance between designing laboratory experiments, to applying the LSWI/EWI techniques at both pilot-scale and full-field-scale for real-world operations Presents state-of-the-art approaches to simulation and modeling of LSWI/EWI
Book Synopsis Enhanced Oil Recovery Processes by : Ariffin Samsuri
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.
Book Synopsis Enhanced Oil Recovery Field Case Studies by : James J.Sheng
Download or read book Enhanced Oil Recovery Field Case Studies written by James J.Sheng and published by Gulf Professional Publishing. This book was released on 2013-04-10 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced Oil Recovery Field Case Studies bridges the gap between theory and practice in a range of real-world EOR settings. Areas covered include steam and polymer flooding, use of foam, in situ combustion, microorganisms, "smart water"-based EOR in carbonates and sandstones, and many more. Oil industry professionals know that the key to a successful enhanced oil recovery project lies in anticipating the differences between plans and the realities found in the field. This book aids that effort, providing valuable case studies from more than 250 EOR pilot and field applications in a variety of oil fields. The case studies cover practical problems, underlying theoretical and modeling methods, operational parameters, solutions and sensitivity studies, and performance optimization strategies, benefitting academicians and oil company practitioners alike. Strikes an ideal balance between theory and practice Focuses on practical problems, underlying theoretical and modeling methods, and operational parameters Designed for technical professionals, covering the fundamental as well as the advanced aspects of EOR
Book Synopsis Chemical Enhanced Oil Recovery by : Patrizio Raffa
Download or read book Chemical Enhanced Oil Recovery written by Patrizio Raffa and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-22 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at presenting, describing, and summarizing the latest advances in polymer flooding regarding the chemical synthesis of the EOR agents and the numerical simulation of compositional models in porous media, including a description of the possible applications of nanotechnology acting as a booster of traditional chemical EOR processes. A large part of the world economy depends nowadays on non-renewable energy sources, most of them of fossil origin. Though the search for and the development of newer, greener, and more sustainable sources have been going on for the last decades, humanity is still fossil-fuel dependent. Primary and secondary oil recovery techniques merely produce up to a half of the Original Oil In Place. Enhanced Oil Recovery (EOR) processes are aimed at further increasing this value. Among these, chemical EOR techniques (including polymer flooding) present a great potential in low- and medium-viscosity oilfields. • Describes recent advances in chemical enhanced oil recovery. • Contains detailed description of polymer flooding and nanotechnology as promising boosting tools for EOR. • Includes both experimental and theoretical studies. About the Authors Patrizio Raffa is Assistant Professor at the University of Groningen. He focuses on design and synthesis of new polymeric materials optimized for industrial applications such as EOR, coatings and smart materials. He (co)authored about 40 articles in peer reviewed journals. Pablo Druetta works as lecturer at the University of Groningen (RUG) and as engineering consultant. He received his Ph.D. from RUG in 2018 and has been teaching at a graduate level for 15 years. His research focus lies on computational fluid dynamics (CFD).
Book Synopsis Review and Experimental Studies to Evaluate the Impact of Salinity and Wettability on Oil Recovery Efficiency by : Chinedu C. Agbalaka
Download or read book Review and Experimental Studies to Evaluate the Impact of Salinity and Wettability on Oil Recovery Efficiency written by Chinedu C. Agbalaka and published by . This book was released on 2006 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Oil recovery efficiency is influenced by a myriad of interacting variables such as pore geometry, wettability, rock mineralogy, brine salinity, oil composition, etc. Reservoir wettability is known to have very significant influence on pore scale displacement and hence is a strong determinant of the final residual oil saturation. Recent studies have indicated the improved oil recovery potential of low salinity brine injection. Though the reason for this reported increase is still unclear, it is speculated that it may be due to wettability changes. In this work, coreflood studies were carried out to determine the recovery benefits of low salinity waterflood over high salinity waterflood and the role of wettability in any observed recovery benefit. Two sets of coreflood experiments were conducted; the first set examined the EOR potential of low salinity floods in tertiary oil recovery processes while the second set examined the secondary oil recovery potential of low salinity floods. Changes in residual oil saturation with variation in wettability and brine salinity were monitored. All the coreflood tests consistently showed an increase in produced oil and water-wetness with decrease in brine salinity and increase in brine temperature"--Leaf iii.
Download or read book Waterflooding written by G. Paul Willhite and published by . This book was released on 1986 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterflooding begins with understanding the basic principles of immiscible displacement, then presents a systematic procedure for designing a waterflood.
Book Synopsis Enhanced Oil Recovery by Low Salinity Water Injection in Carbonate Reservoirs by : Mohamed Ibrahim AlHammadi
Download or read book Enhanced Oil Recovery by Low Salinity Water Injection in Carbonate Reservoirs written by Mohamed Ibrahim AlHammadi and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Chemical Enhanced Oil Recovery by : James J.Sheng
Download or read book Modern Chemical Enhanced Oil Recovery written by James J.Sheng and published by Gulf Professional Publishing. This book was released on 2010-11-25 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crude oil development and production in U.S. oil reservoirs can include up to three distinct phases: primary, secondary, and tertiary (or enhanced) recovery. During primary recovery, the natural pressure of the reservoir or gravity drive oil into the wellbore, combined with artificial lift techniques (such as pumps) which bring the oil to the surface. But only about 10 percent of a reservoir's original oil in place is typically produced during primary recovery. Secondary recovery techniques to the field's productive life generally by injecting water or gas to displace oil and drive it to a production wellbore, resulting in the recovery of 20 to 40 percent of the original oil in place. In the past two decades, major oil companies and research organizations have conducted extensive theoretical and laboratory EOR (enhanced oil recovery) researches, to include validating pilot and field trials relevant to much needed domestic commercial application, while western countries had terminated such endeavours almost completely due to low oil prices. In recent years, oil demand has soared and now these operations have become more desirable. This book is about the recent developments in the area as well as the technology for enhancing oil recovery. The book provides important case studies related to over one hundred EOR pilot and field applications in a variety of oil fields. These case studies focus on practical problems, underlying theoretical and modelling methods, operational parameters (e.g., injected chemical concentration, slug sizes, flooding schemes and well spacing), solutions and sensitivity studies, and performance optimization strategies. The book strikes an ideal balance between theory and practice, and would be invaluable to academicians and oil company practitioners alike. Updated chemical EOR fundamentals providing clear picture of fundamental concepts Practical cases with problems and solutions providing practical analogues and experiences Actual data regarding ranges of operation parameters providing initial design parameters Step-by-step calculation examples providing practical engineers with convenient procedures
Book Synopsis Evaluation of Low Saline???Smart Water??? Enhanced Oil Recovery in Light Oil Reservoirs by : Yogesh Kumar Suman
Download or read book Evaluation of Low Saline???Smart Water??? Enhanced Oil Recovery in Light Oil Reservoirs written by Yogesh Kumar Suman and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Salinity Waterflooding for Enhanced Oil Recovery by : Hamish J. A. Woodrow
Download or read book Low Salinity Waterflooding for Enhanced Oil Recovery written by Hamish J. A. Woodrow and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization of Low Salinity Water Flooding in Low Permeability Oil Reservoir by :
Download or read book Optimization of Low Salinity Water Flooding in Low Permeability Oil Reservoir written by and published by . This book was released on 2019 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the demand of energy is growing sharply. Oil plays a very important role among all of the energy resources. Low permeability oil reservoirs classified as non conventional oil reservoirs and needs special techniques for oil recovery. The primary aim of this study is to select a proper technique for oil recovery of low permeability carbonate oil reservoir. Different carbonated and non-carbonated brines were employed in this project. Formation brine (17500 ppm), carbonate formation brine, sea water, low salinity water, carbonated sea water (50000 ppm), and carbonated low salinity brine (5000 ppm) were used in this work. Core samples were grouped as composite cores with overall average permeability similar to the reservoir permeability. Four sequential low salinity water flooding systems were studied in this project. The following four different sequential water flooding systems were tested: (1) FW-SWLSW- car LSW, (2) car SW-SW-LSW, (3) car FW-FW-SW-LSW, (4) car LSW-LSWSW. In general, the results of the experimental work indicated that Carbonated Water performs better than non-carbonated water. Carbonated Low Salinity water is the optimum brine among all tested brines in terms of oil recovery. A sequential composite core water flooding consists of car LSW- LSW-SW is the optimum sequential flooding system among the studied systems. The interfacial tensions, contact angle, and end point relative permeability results indicated that wettability is the dominant oil recovery mechanism of the studied systems.
Book Synopsis Enhanced Recovery by Chemical Waterflooding by : Kevin L. Cook
Download or read book Enhanced Recovery by Chemical Waterflooding written by Kevin L. Cook and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
