Wettability

Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Contact Angle Wettability and Adhesion
✏Author : K. L. Mittal
✏Publisher : BRILL
✏Release Date : 2008-08-31
✏Pages : 308
✏ISBN : 9789004158641
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Book Summary : This volume chronicles the proceedings of the "5th International Symposium on Contact Angle, Wettability and Adhesion" Toronto, Canada, June 2006. Wettability is of pivotal importance in many and varied arenas, ranging from mundane to micro-and nanofluidics to lithography to biomedical. It should be underscored that in the last years there has been burgeoning interest in replicating the so-called a oeLotus Leaf Effecta to create superhydrophobic surfaces. This volume contains a total of 19 papers covering many facets of contact angle, wettability and adhesion. All manuscripts were rigorously peer-reviewed and revised and edited before inclusion in this book. Concomitantly, this volume represents an archival publication of the highest standard. This book (5th volume in the series) is divided into three parts: Part 1: Contact Angle Measurements and Solid Surface Free Energy; Part 2: Relevance of Wetting in Cleaning and Adhesion; Part 3: Superhydrophobic Surfaces. The topics covered include: Fundamental aspects of contact angle and its measurement; solidification contact angles of micro-droplets; microscopic wettability of wood call walls; dynamic vapor-liquid interfacial tension; surface free energy of polymeric materials; surface cleanliness evaluation from wettability measurements; wettability parameters affecting surface cleanability of stainless steel and textiles; wetting and adhesion in fibrous materials; wettability and adhesion of coatings; adhesion of hydrophobizing agents; modulation of surface properties of polymers; graft efficiency and adhesion; relevance of interfacial free energy in cell adhesion; various approaches to create superhydrophobic surfaces; adsorption of surfactants on hydrophobic and superhydrophobic surfaces.

Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Contact Angle Wettability and Adhesion
✏Author : Kash L. Mittal
✏Publisher : CRC Press
✏Release Date : 2009-09-30
✏Pages : 400
✏ISBN : 9789004181021
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Book Summary : The topic of wettability (measured in terms of contact angle) is of tremendous interest from both fundamental and applied points of view, Wettability plays an essential role in many industrial processes, so an understanding of factors dictating wettability and how to modulate it is of paramount importance. In the last years there has been an explosive interest in superhydrophobic surfaces (i.e., surfaces with water contact angle of 150° or higher) because of their relevance/importance in many areas ranging from self-cleaning windows to nanofluidics. Also recently there has been heightened activity in the field of electrowetting. Contact Angle, Wettability and Adhesion, Volume 6 is divided into four parts: Part 1: Fundamental Aspects; Part 2: Wettability Control/Modification; Part 3: Superhydrophobic Surfaces; and Part 4: Surface Free Energy and Relevance of Wettability in Adhesion. The topics covered include: a guide to the equilibrium contact angles maze: fundamental aspects of wetting of rough and chemically heterogeneous surfaces: work of adhesion for rock-oil-brine systems; Is the world basic?; wettability control/modification using various approaches; superhydrophobic surfaces and ways to impart superhydrophobicity; adsorption on superhydrophobic surfaces; solid surface energy determination; surface modification of different materials; relevance of wettability and adhesion aspects in a variety of reinforced composites. In essence, this volume reflects the cumulative wisdom of many active and renowned researchers and provides a commentary on contemporary research in the fascinating world of contact angles and wettability. This volume and its predecessors (5 volumes), containing bountiful information, will be of much value to anyone interested/involved in controlling wetting phenomena and their applications.

📒Wettability ✍ Erle C. Donaldson

Wettability Book PDF
✏Book Title : Wettability
✏Author : Erle C. Donaldson
✏Publisher : Elsevier
✏Release Date : 2013-11-25
✏Pages : 336
✏ISBN : 9780127999906
✏Available Language : English, Spanish, And French

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✏Wettability Book Summary : The wettability of oil reservoirs is the most important factor controlling the rate of oil recovery, providing a profound effect on petroleum production. The petroleum industry has increased the research effort on wettability, but, so far, there has been limited coverage on the topic. Wettability reviews the major research and applications on wettability, capillary pressure and improved recovery. Critical topics including core preservation, the effect of wettability on relative permeability, surface forces such as van der Waals equation of state, petroleum traps and pore size effects are all included in this musthave handbook. Deciphering the techniques and examples will increase the efficiency and production of oil recovery, translating to stronger reservoir simulations and improved well production.

Gas Wettability Of Reservoir Rock Surfaces With Porous Media Book PDF
✏Book Title : Gas Wettability of Reservoir Rock Surfaces with Porous Media
✏Author : Guancheng Jiang
✏Publisher : Gulf Professional Publishing
✏Release Date : 2018-06-13
✏Pages : 282
✏ISBN : 9780128151518
✏Available Language : English, Spanish, And French

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✏Gas Wettability of Reservoir Rock Surfaces with Porous Media Book Summary : Gas Wettability of Reservoir Rock Surfaces with Porous Media compiles critical information on this complex topic, thus helping engineers more successfully face technical field challenges in oil and gas recovery. Combining both theoretical and practical knowledge, this concise reference bridges basic concepts with factors affecting gas wettability, also covering polymer-type gas wetting reversal agents in technical detail and discussing gas wettability’s influence on capillary force, oil-water distribution, and gas wettability’s application in petroleum engineering operations from both domestic and international projects. This book delivers the critical concepts, methods, mechanisms and practical technology needed for today’s complex oil and gas assets. Helps readers further develop and improve basic theory on petrophysics and reservoir engineering Covers various aspects, like the developmental history of gas wettability and the concept and evaluation of gas wettability of oil and gas reservoir rock surfaces Creates a bridge between theoretical knowledge and practical application, with content covering new theories, methodologies and the technologies used in drilling, completion and reservoir engineering

Wettability And Interfacial Phenomena Book PDF
✏Book Title : Wettability and Interfacial Phenomena
✏Author : Rita Khanna
✏Publisher : BoD – Books on Demand
✏Release Date : 2019-05-22
✏Pages : 158
✏ISBN : 9781838805388
✏Available Language : English, Spanish, And French

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✏Wettability and Interfacial Phenomena Book Summary : Wettability at the solid/liquid interface, its dynamics, tunability, the influence of operating parameters, surface and interfacial phenomena play an increasingly significant role in a wide variety of applications, for example, material processing, nanotechnology, oil recovery, oil spills, chemical leaching, water management, and disease transmission. Although a mature field, it is experiencing dramatic developments on several fronts with emerging applications in new fields. This book presents a collection of eight chapters on nanoscale wetting phenomena, oil extraction from reservoir rocks, the role of coatings, particle morphology, surface roughness and viscosity in metal processing, and practical applications of superhydrophobic behaviour in cell culturing, isolation, anti-icing, anti-reflective and anti-corrosion coatings in the transportation and optical devices fields.

Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Contact Angle Wettability and Adhesion
✏Author : Kash L. Mittal
✏Publisher : CRC Press
✏Release Date : 2003-12-01
✏Pages : 520
✏ISBN : 9789047403326
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Book Summary : This volume chronicles the proceedings of the Third International Symposium on Contact Angle, Wettability and Adhesion held in Providence, Rhode Island, May 20a 23, 2002. This symposium was held to provide a forum to update and consolidate the research activity on this topic. The world of wettability is very wide as it plays an extremely important

Advances In Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Advances in Contact Angle Wettability and Adhesion
✏Author : K. L. Mittal
✏Publisher : John Wiley & Sons
✏Release Date : 2015-09-18
✏Pages : 464
✏ISBN : 9781119117001
✏Available Language : English, Spanish, And French

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✏Advances in Contact Angle Wettability and Adhesion Book Summary : This book is the second volume in the series "Contact Angle, Wettability and Adhesion." The premier volume was published in 2013. Even a cursory glance at the literature show that in recent years the interest in understanding and controlling wetting behavior has grown exponentially. Currently, there is tremendous research activity in rendering surfaces superhydrophobic, superhydrophilic, superoleophobic, superoleophilic, omniphobic and omniphilic because of their applications in many technologically important fields. Also the durability or robustness of materials with such super" characteristics is extremely significant, as well as the utilization of "green" (biobased) materials to obtain such surfaces. This book containing 19 articles reflects more recent developments in certain areas covered in its predecessor volume as well as it includes some topics which were not covered before. Concomitantly, this book provides a medium to keep abreast of the latest research activity and developments in the arena of contact angle, wettability and adhesion. The topics discussed include: Understanding of wetting hysteresis; fabrication of superhydrophobic materials; plasma treatment to achieve superhydrophilic surfaces; highly liquid repellent textiles; modification of paper surfaces to control liquid wetting and adhesion; Cheerios effect and its control; engineering materials with superwettability; laser ablation to create micro/nano-patterned surfaces; liquid repellent amorphous carbon nanoparticle networks; mechanical durability of liquid repellent surfaces; wetting of solid walls and spontaneous capillary flow; relationship between roughness and oleophilicity; superhydrophobic and superoleophobic green materials; computational analysis of wetting on hydrophobic surfaces: application to self-cleaning mechanisms; bubble adhesion to superhydrophilic surfaces; surface free energy of superhydrophobic materials; and role of surface free energy in pharmaceutical tablet tensile strength.

Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Contact Angle Wettability and Adhesion
✏Author : Kash L. Mittal
✏Publisher : CRC Press
✏Release Date : 2006-06-01
✏Pages : 600
✏ISBN : 9789047418214
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Book Summary : This volume chronicles the proceedings of the 4th International Symposium on Contact Angle, Wettability and Adhesion held in Philadelphia, PA, June 2004. The world of wettability is very wide and it plays a crucial role in many and varied technological areas ranging from microfluidics to biomedical to agriculture to welding. This volume contains a total of 31 papers covering many ramifications of contact angle, wettability and adhesion. All manuscripts were rigorously peer-reviewed and revised, and properly edited before inclusion in this book. The topics covered include: fundamental aspects of contact line region; evaporative behavior of sessile drops; various factors influencing contact angle measurements; different kinds of contact angles; various ways to measure contact angles; contact angle hysteresis; contact angle measurements on various materials (smooth, rough, porous, heterogeneous); effect of electric field on contact angle (electrowetting); wetting and spreading on heterogeneous surfaces; factors influencing wetting/spreading phenomena; determination of solid surface free energy via contact angle measurements; application of AFM in determining solid surface tension at the nano-scale; ultralyophobic surfaces; surface modification and wettability; multiphase flow dynamics in porous media; thin film coatings for textile materials; bio-fouling resistant coatings; relationships between wetting and adhesion; and relevance/importance of wetting and surface energetics in technological applications, including cleaning of flooring materials, kinetics of oil removal from coating materials, cell adhesion, and mold compound- metal adhesion in semiconductor packaging.

📒Wettability At High Temperatures ✍ N. Eustathopoulos

Wettability At High Temperatures Book PDF
✏Book Title : Wettability at High Temperatures
✏Author : N. Eustathopoulos
✏Publisher : Elsevier
✏Release Date : 1999-11-24
✏Pages : 419
✏ISBN : 0080543782
✏Available Language : English, Spanish, And French

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✏Wettability at High Temperatures Book Summary : The purpose of this book is to bring together current scientific understanding of wetting behaviour that has been gained from theoretical models and quantitative experimental observations. The materials considered are liquid metals or inorganic glasses in contact with solid metals or ceramics at temperatures of 200-2000oC. Wetting has been a significant scientific concern for the last two centuries and reference will be made to classical work by nineteenth century scientists such as Dupré, Laplace and Young that was validated by observations of the behaviour of chemically inert ambient temperature systems. In attempting to achieve the aims of the book, the text has been divided into ten Chapters that can be grouped into four stages of presentation. The first stage comprises two Chapters that review established and newly developed models for their relevance to wetting behaviour at high temperatures, including recent models that encompass the role of chemical reactions at the solid/liquid interfaces. Attention is paid both to equilibrium wetting behaviour (Chapter 1) and to the factors that control the approach to equilibrium (Chapter 2). Then follow Chapters concerned with experimental techniques for scientific measurement of the extent of wetting (Chapter 3) and with the surface energy data for both metals and non-metals that are essential for quantitative interpretation of wetting behaviour (Chapter 4). Descriptions of experimentally determined and quantified wetting behaviour are presented and interpreted in the third part comprising five Chapters dealing with the characteristics of metal/metal, metal/oxide, metal/non-oxide, metal/carbon and molten glass/solid systems. The book concludes with a Chapter commenting on the role of wetting behaviour in joining similar and dissimilar materials by liquid route techniques.

Wettability And Wetting Behavior Of Elastomeric Impression Materials Book PDF
✏Book Title : Wettability and Wetting Behavior of Elastomeric Impression Materials
✏Author : Don H. Pratten
✏Publisher :
✏Release Date : 1987
✏Pages : 134
✏ISBN : UOM:39015009891568
✏Available Language : English, Spanish, And French

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✏Wettability and Wetting Behavior of Elastomeric Impression Materials Book Summary :

Surface Wettability And Adherence Of Bacteria On Polymeric Substrates Book PDF
✏Book Title : Surface Wettability and Adherence of Bacteria on Polymeric Substrates
✏Author : Debra Ann Timm
✏Publisher :
✏Release Date : 1986
✏Pages : 240
✏ISBN : UCAL:X33980
✏Available Language : English, Spanish, And French

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✏Surface Wettability and Adherence of Bacteria on Polymeric Substrates Book Summary :

Advances In Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Advances in Contact Angle Wettability and Adhesion
✏Author : K. L. Mittal
✏Publisher : John Wiley & Sons
✏Release Date : 2018-02-23
✏Pages : 426
✏ISBN : 9781119459989
✏Available Language : English, Spanish, And French

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✏Advances in Contact Angle Wettability and Adhesion Book Summary : This is the third Volume in the series “Advances in Contact Angle, Wettability and Adhesion” initiated to consolidate information and provide commentary on certain recent research aspects dealing with this important topic. Its predecessor Volumes 1 and 2 were published in 2013 and 2015, respectively. This new book comprising 15 research and review articles is divided into four parts: Part 1: Contact Angle Measurement and Analysis; Part 2: Wettability Behavior; Part 3: Hydrophobic/Superhydrophobic Surfaces; Part 4: Wettability, Surface Free Energy and Adhesion. The topics covered include: O Procedure to measure and analyse contact angles/drop shape behaviors. O Contact angle measurement considering spreading, evaporation and reactive substrate. O Measurement of contact angle of a liquid on a substrate of the same liquid. O Evolution of the axisymmetric droplet shape parameters. O Interfacial modulus of a solid surface. O Functionalization of textiles using UV-based techniques for surface modification—patterned wetting behavior. O Wettability behavior of oleophilic and oleophobic nanorough surfaces. O Wettability behavior of nanofluids. O Dielectrowetting for digital microfluidics. O Hydrophobicity and superhydrophobicity in fouling prevention. O Superhydrophobic/superhydrophilic hybrid surface. O Laser material processing for enhancing stem cell growth. O Wettability correlation for bioadhesion to different materials. O Determination of the surface free energy of solid surfaces: statistical consideration. O Determination of apparent surface free energy using hysteresis approach.

Characterization Of The Wettability Of Solid Particles By Film Flotation Book PDF
✏Book Title : Characterization of the Wettability of Solid Particles by Film Flotation
✏Author : Jianli Diao
✏Publisher :
✏Release Date : 1987
✏Pages : 170
✏ISBN : UCAL:C2926054
✏Available Language : English, Spanish, And French

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✏Characterization of the Wettability of Solid Particles by Film Flotation Book Summary :

📒Formation Of Non Wettable Soils ✍ Leonard F. DeBano

Formation Of Non Wettable Soils Book PDF
✏Book Title : Formation of Non wettable Soils
✏Author : Leonard F. DeBano
✏Publisher :
✏Release Date : 1966
✏Pages : 8
✏ISBN : MINN:31951D02995596I
✏Available Language : English, Spanish, And French

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✏Formation of Non wettable Soils Book Summary :

Contact Angle Wettability And Adhesion Book PDF
✏Book Title : Contact Angle Wettability and Adhesion
✏Author : Kash L. Mittal
✏Publisher : CRC Press
✏Release Date : 2014-07-30
✏Pages : 562
✏ISBN : 9781466562387
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Book Summary : This volume documents the proceedings of the Second International Symposium on Contact Angle, Wettability and Adhesion held in Newark, NJ, June 21-23, 2000. Since the first symposium, held in 1992, there had been tremendous research activity on many ramifications of wettability phenomena.This volume contains a total of 33 papers, which were all pro

The Effects Of Dye Carriers Of The Wettability Of Polyester Book PDF
✏Book Title : The Effects of Dye Carriers of the Wettability of Polyester
✏Author : Margaret Farrell Wilde
✏Publisher :
✏Release Date : 1989
✏Pages : 118
✏ISBN : CORNELL:31924051843898
✏Available Language : English, Spanish, And French

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✏The Effects of Dye Carriers of the Wettability of Polyester Book Summary :

📒The Wettability Of Wood ✍ Andrew Herczeg

The Wettability Of Wood Book PDF
✏Book Title : The Wettability of Wood
✏Author : Andrew Herczeg
✏Publisher :
✏Release Date : 1964
✏Pages : 64
✏ISBN : UCAL:C3525990
✏Available Language : English, Spanish, And French

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✏The Wettability of Wood Book Summary :

Soil Wettability And Wetting Agents Book PDF
✏Book Title : Soil Wettability and Wetting Agents
✏Author :
✏Publisher :
✏Release Date : 1967
✏Pages : 13
✏ISBN : MINN:31951D02964770F
✏Available Language : English, Spanish, And French

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✏Soil Wettability and Wetting Agents Book Summary :

📒Wettability ✍ John Berg

Wettability Book PDF
✏Book Title : Wettability
✏Author : John Berg
✏Publisher : CRC Press
✏Release Date : 1993-04-20
✏Pages : 552
✏ISBN : 0824790464
✏Available Language : English, Spanish, And French

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✏Wettability Book Summary : Presents current knowledge of intermolecular interactions, the dynamics of wetting and the importance of wettability phenomena in processes and products, detailing the considerations required for wettability in multicomponent systems. Underlying theory and experimental methods are described.

Influence Of Wettability On Dense Nonaqueous Phase Liquid Dnapl Constitutive Relationships In Saturated Porous Media Book PDF
✏Book Title : Influence of Wettability on Dense Nonaqueous Phase Liquid DNAPL Constitutive Relationships in Saturated Porous Media
✏Author : Denis Michael O'Carroll
✏Publisher :
✏Release Date : 2004
✏Pages :
✏ISBN : UOM:39015058863492
✏Available Language : English, Spanish, And French

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✏Influence of Wettability on Dense Nonaqueous Phase Liquid DNAPL Constitutive Relationships in Saturated Porous Media Book Summary :

The Effect Of Surface Wettability On The Defrost Process Book PDF
✏Book Title : The Effect of Surface Wettability on the Defrost Process
✏Author : Yang Liu
✏Publisher : Springer
✏Release Date : 2018-10-26
✏Pages : 116
✏ISBN : 9783030026165
✏Available Language : English, Spanish, And French

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✏The Effect of Surface Wettability on the Defrost Process Book Summary : This SpringerBrief presents a recent advancement in modeling and measurement of the effect of surface wettability on the defrost process. Carefully controlled laboratory measurements of the defrosting of cooled surfaces are used to reveal the effect of surface wetting properties on the extent and speed of frost removal by melting or slumping. The experiments are accompanied by visualization of frost removal at several defrosting conditions. Analysis breaks the defrost process into three stages according to the behavior of the meltwater. Surface wetting factors are included, and become significant when sufficient meltwater accumulates between the saturated frost layer and the surface. The book is aimed at researchers, practicing engineers and graduate students.

Wettability Of Nanostructured Surfaces Book PDF
✏Book Title : Wettability of Nanostructured Surfaces
✏Author : L. Duta
✏Publisher :
✏Release Date : 2015
✏Pages :
✏ISBN : OCLC:1154167697
✏Available Language : English, Spanish, And French

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✏Wettability of Nanostructured Surfaces Book Summary : There are many studies in literature concerning contact angle measurements on different materials/substrates. It is documented that textiles can be coated with multifunctional materials in form of thin films or nanoparticles to acquire characteristics that can improve the protection and comfort of the wearer. The capacity of oxide nanostructures to inhibit fungal development and neutralize bacteria is a direct consequence of their wetting behavior [1-6]. Moreover, the radical modification of wetting behavior of nanostructures from hydrophilic to hydrophobic when changing the pulsed laser deposition (PLD) ambient will be thoroughly discussed.

Petroleum Reservoir Rock And Fluid Properties Book PDF
✏Book Title : Petroleum Reservoir Rock and Fluid Properties
✏Author : Abhijit Y. Dandekar
✏Publisher : CRC Press
✏Release Date : 2013-02-21
✏Pages : 544
✏ISBN : 9781439876459
✏Available Language : English, Spanish, And French

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✏Petroleum Reservoir Rock and Fluid Properties Book Summary : A strong foundation in reservoir rock and fluid properties is the backbone of almost all the activities in the petroleum industry. Suitable for undergraduate students in petroleum engineering, Petroleum Reservoir Rock and Fluid Properties, Second Edition offers a well-balanced, in-depth treatment of the fundamental concepts and practical aspects that encompass this vast discipline. New to the Second Edition Introductions to Stone II three-phase relative permeability model and unconventional oil and gas resources Discussions on low salinity water injection, saturated reservoirs and production trends of five reservoir fluids, impact of mud filtrate invasion and heavy organics on samples, and flow assurance problems due to solid components of petroleum Better plots for determining oil and water Corey exponents from relative permeability data Inclusion of Rachford-Rice flash function, Plateau equation, and skin effect Improved introduction to reservoir rock and fluid properties Practice problems covering porosity, combined matrix-channel and matrix-fracture permeability, radial flow equations, drilling muds on fluid saturation, wettability concepts, three-phase oil relative permeability, petroleum reservoir fluids, various phase behavior concepts, phase behavior of five reservoir fluids, and recombined fluid composition Detailed solved examples on absolute permeability, live reservoir fluid composition, true boiling point extended plus fractions properties, viscosity based on compositional data, and gas-liquid surface tension Accessible to anyone with an engineering background, the text reveals the importance of understanding rock and fluid properties in petroleum engineering. Key literature references, mathematical expressions, and laboratory measurement techniques illustrate the correlations and influence between the various properties. Explaining how to acquire accurate and reliable data, the author describes coring and fluid sampling methods, issues related to handling samples for core analyses, and PVT studies. He also highlights core and phase behavior analysis using laboratory tests and calculations to elucidate a wide range of properties.

📒Wettability And Imbibition ✍ Jill S. Buckley

Wettability And Imbibition Book PDF
✏Book Title : WETTABILITY AND IMBIBITION
✏Author : Jill S. Buckley
✏Publisher :
✏Release Date : 2003
✏Pages : 5
✏ISBN : OCLC:316469350
✏Available Language : English, Spanish, And French

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✏WETTABILITY AND IMBIBITION Book Summary : The questions of reservoir wettability have been approached in this project from three directions. First, we have studied the properties of crude oils that contribute to wetting alteration in a reservoir. A database of more than 150 different crude oil samples has been established to facilitate examination of the relationships between crude oil chemical and physical properties and their influence on reservoir wetting. In the course of this work an improved SARA analysis technique was developed and major advances were made in understanding asphaltene stability including development of a thermodynamic Asphaltene Solubility Model (ASM) and empirical methods for predicting the onset of instability. The CO-Wet database is a resource that will be used to guide wettability research in the future. The second approach is to study crude oil/brine/rock interactions on smooth surfaces. Contact angle measurements were made under controlled conditions on mica surfaces that had been exposed to many of the oils in the CO-Wet database. With this wealth of data, statistical tests can now be used to examine the relationships between crude oil properties and the tendencies of those oils to alter wetting. Traditionally, contact angles have been used as the primary wetting assessment tool on smooth surfaces. A new technique has been developed using an atomic forces microscope that adds a new dimension to the ability to characterize oil-treated surfaces. Ultimately we aim to understand wetting in porous media, the focus of the third approach taken in this project. Using oils from the CO-Wet database, experimental advances have been made in scaling the rate of imbibition, a sensitive measure of core wetting. Application of the scaling group to mixed-wet systems has been demonstrated for a range of core conditions. Investigations of imbibition in gas/liquid systems provided the motivation for theoretical advances as well. As a result of this project we have many new tools for studying wetting at microscopic and macroscopic scales and a library of well-characterized fluids for use in studies of crude oil/brine/rock interactions.

Nanofluids As Novel Alternative Smart Fluids For Reservoir Wettability Alteration Book PDF
✏Book Title : Nanofluids as Novel Alternative Smart Fluids for Reservoir Wettability Alteration
✏Author : Lezorgia Nekabari Nwidee
✏Publisher :
✏Release Date : 2018
✏Pages :
✏ISBN : OCLC:1154232982
✏Available Language : English, Spanish, And French

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✏Nanofluids as Novel Alternative Smart Fluids for Reservoir Wettability Alteration Book Summary : This chapter presents an account of two metal oxide nanoparticles (zirconium and nickel oxide) on basis of their structure, morphology, crystallinity phases, and their wetting effect on solid-liquid interface. As a preliminary step to sound understanding of process mechanisms; wettability, nanoparticles, and their relations thereof were scrutinized. To investigate the nanofluids wetting inclinations, complex mixtures of the nanoparticles and NaCl brine (ZrO2/NaCl; NiO/NaCl) were formulated and their technical feasibility as wetting agents tested via contact angle measurement. The result shows that the nanoparticles exhibit different structural and morphological features and capable of addressing reservoir wettability challenges owing to favorable adsorption behavior on the surface of the calcite which facilitated the wetting changes quantified by contact angle. We believe this study will significantly impact the understanding of wetting at solid-liquid interface which is crucial for recovery process optimization.

Wettability Of Candidate Accident Tolerant Fuel Atf Cladding Materials In Lwr Conditions Book PDF
✏Book Title : Wettability of Candidate Accident Tolerant Fuel ATF Cladding Materials in LWR Conditions
✏Author : Anupam Jena (S.M.)
✏Publisher :
✏Release Date : 2020
✏Pages : 70
✏ISBN : OCLC:1191901226
✏Available Language : English, Spanish, And French

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✏Wettability of Candidate Accident Tolerant Fuel ATF Cladding Materials in LWR Conditions Book Summary : Since the 2011 Fukushima accident, substantial research has been dedicated to developing accident tolerant fuel (ATF) cladding materials. These analyses have mostly concentrated on the capability of potential ATF materials to withstand runaway steam oxidation and preserve their mechanical strength and structural integrity under thermal shocks. However, knowledge is relatively deficient for the thermal-hydraulic properties of these materials, particularly under light water reactor (LWR) operating conditions. The surface wettability is particularly important, as it affects the dynamics of the boiling heat transfer process, and consequently, the critical heat flux (CHF) and rewetting temperatures, which are important thermal limits for LWRs. Surface wettability determines nucleation site density, bubble departure diameter, and bubble departure frequency. Therefore, it is essential to quantify the surface wettability of candidate ATF cladding materials to determine their thermal-hydraulic behavior compared to conventional Zircaloy claddings. The surface wettability is usually quantified through the sessile droplet contact angle, which is the angle formed between the liquid-vapor and the liquid-solid interface. The contact angle depends on the fluid, solid, surface finish, and operating conditions, i.e., temperature and pressure. However, most of the measurements available in the literature are performed at low pressure and in an inert atmosphere, which is quite different from the operating conditions of LWRs (i.e., in a steam-saturated atmosphere at a pressure as high as 15.5 MPa or 155 bars). To close this gap, in this study, we designed and built an autoclave-type facility capable of measuring static, advancing, and receding contact angle in steam-saturated atmospheres, from sub-atmospheric conditions up to the critical point of water, i.e., 22.1 MPa (221 bar or 3200 psi) and 374°C. We measured the static contact angle of conventional Zircaloy-4 and candidate ATF cladding materials (e.g., Cr-coated Zr-4, FeCrAl, and SiC). The contact angle decreases with an increase in temperature for all the materials. Rough surfaces showed higher wettability, i.e., lower contact angle, compared to the smooth surfaces. These trends are expected from theory. All the materials showed different wettability under the same temperature and pressure conditions. Individual correlations for temperature dependence for each of them are proposed.

In Vitro Analysis Of Wettability And Physical Properties Of Blister Pack Solutions Of Hydrogel Contact Lenses Book PDF
✏Book Title : In Vitro Analysis of Wettability and Physical Properties of Blister Pack Solutions of Hydrogel Contact Lenses
✏Author : Kara Laura Menzies
✏Publisher :
✏Release Date : 2010
✏Pages : 136
✏ISBN : OCLC:1033221018
✏Available Language : English, Spanish, And French

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✏In Vitro Analysis of Wettability and Physical Properties of Blister Pack Solutions of Hydrogel Contact Lenses Book Summary : Contact lens success is primarily driven by comfort of the lens in eye. Over the years, many modifications have been made to the lens surface and bulk material to improve comfort of the lens, however 50% of contact lens wearers still report dry eye symptoms while wearing their lenses. Wettability of the lens material plays a large role in lens comfort, primarily due to its influence in tear film stability. In vitro wettability of contact lenses has typically been assessed by measuring the water contact angle on the lens surface. Currently there are three techniques to measure the in vitro wettability of contact lenses, the sessile drop technique, captive bubble technique, and the Wilhelmy balance method. To date, there is much published on assessing wettability using the sessile drop and captive bubble technique, however there is no data published looking at the in vitro wettability of hydrogel contact lenses measured by the Wilhelmy balance method. Accumulation and deposition of tear components on the lens surface can also affect lens performance, by altering the wettability of the lens surface and causing lens spoilage. The majority of in vitro studies looking at deposition of tear components on the lens surface dope the lenses in tear solutions for a set period of time. None of these studies have investigated the impact of exposing the lenses to tear solutions, then exposing them to the air and then back into the tear solution, which mimics the process during blinking. In Chapter 2, an evaluation of the influence of lens preparation on the wettability of contact lenses measured by the sessile drop technique was conducted. The wettability of 6 silicone hydrogel and one conventional lens material was assessed. Lenses were blot dried on either a microfiber cloth or lens paper for different drying periods and contact angles were measured using the sessile drop technique. There were large variations in results using the microfiber cloth after all drying periods, but there was little variation in results after lenses were blot dried on lens paper for approximately 20 seconds. Thus, it was determined that for future contact angle analysis using the sessile drop technique that lenses should be blot dried for roughly 20 seconds on lens paper. This method was used consistently for the rest of the experiments in which the sessile drop technique was used to measure contact angles. The remainder of Chapter 2 compared the contact angles of different lens materials measured by the sessile drop technique and Wilhelmy balance method. The wettability of five different silicone hydrogel lens materials was assessed directly out-of-blister and after a 48 hour soak in saline. There were significant differences in contact angles for the lens materials between the two techniques. There were also significant differences in contact angles directly out-of-blister and after the 48 hour soak. Results from this study suggested that different methods of measuring wettability can produce different results and that blister pack solutions can alter the wettability of lens materials. Chapter 3 measured the physical properties of blister pack solutions of silicone hydrogel lenses. The pH, osmolality, surface tension, and viscosity of the blister solutions for 9 silicone hydrogel lenses, 2 conventional lenses, and 2 saline solutions were measured. The osmolality of the blister solutions followed a trend, in that blister solutions manufactured by the same company had the same osmolality. Products produced by Johnson & Johnson had the highest osmolality. Blister solutions that contained additional wetting agents had higher viscosities compared to blister solutions without added wetting agents. The main conclusion from this study was that adding wetting agents to blister solutions could alter the physical properties of the blister solutions. The purpose of Chapter 4 was to measure the physical properties of the blister pack solutions of daily disposable lenses and to evaluate the wettability of the lens materials and substantivity of the blister solutions, using a method in which lenses were cycled through 5 minute soaks in saline to mimic blinking. Five daily disposable lens materials were evaluated, one of which was shipped in a blister solution with added surfactants and wetting agents. The wettability of the lenses was assessed using the sessile drop technique and Wilhelmy balance method. The lens with the modified blister solution had a lower surface tension and higher viscosity compared to all the other blister solutions. The same trend in osmolalties as those reported in Chapter 3, were found with blister solutions made by the same manufacturer having the same osmolality. The wettability varied across lens materials. Overall, the lens material with the added components to the blister solution had the lowest contact angle. Chapter 5 investigated the deposition of tear components onto the surface of conventional and silicone hydrogel lens materials and looked at the impact of this on changes in wettability. Three lens materials used in Chapter 4 were exposed to a saline solution, lysozyme solution, and a complex tear solution for 5 minutes, 1 hour, 4 hours, and 8 hours. The wettability was assessed after each time point using the sessile drop and Wilhelmy balance methods. There was little to no deposition on the lens materials that had the highest in vitro CAs in Chapter 4, exemplified by no change in wettability after being soaked in the lysozyme and complex tear solutions. There was deposition on the lens materials with the lowest CAs in Chapter 4, exemplified by a significant increase in wettability after being soaked in the lysozyme and complex tear solutions. Results indicate that there is some deposition onto one lens material, as shown by the change in wettability of the lens surface. These results were further used to validate a method used in Chapter 6. The experiment conducted in Chapter 6 was similar to the experiment in Chapter 5, except that the lenses were not soaked in the three solutions but rather exposed to the solutions in a "model blink cell". The model blink cell moves lenses in and out of solution at a set time interval, in an attempt to mimic blinking. The interval was set so the lenses would be placed for 1 second in solution and 5 seconds exposed to the air. The same lens materials used in Chapter 5 were used in for this experiment. The lenses were exposed to a saline solution, lysozyme solution and complex tear solution for 5 minutes, 1 hour, 4 hours, and 8 hours. Much like in Chapter 5, deposition on the lens materials was determined by a change in the lens wettability. There were differences in the results of this chapter and that of Chapter 5, with deposition occurring on two of the lens materials rather than just one. This result indicates that the drying of the lens surface for 5 seconds out of solution has an effect on the deposition of tear components on certain lens materials. Thus, the model blink cell may be a useful tool for future deposition studies. Overall this thesis demonstrated that preparation of the lens material can cause variation in contact angles. Different methods of measuring in vitro wettability of contact lenses can produce different results and thus the method used to assess wettability should always be stated. The physical properties of blister pack solutions can change with added wetting agents and surfactants, and components from blister solutions can alter the initial wettability of contact lenses. In vitro deposition of proteins onto the lens surface can vary with techniques, and finally, deposition of tear components onto the surface of contact lenses can alter the lens wettability.

Characterization Of Friction Based On Specific Film Thickness And Wettability Book PDF
✏Book Title : Characterization of Friction Based on Specific Film Thickness and Wettability
✏Author : Avdhesh Bansal
✏Publisher :
✏Release Date : 2020
✏Pages : 41
✏ISBN : OCLC:1155199190
✏Available Language : English, Spanish, And French

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✏Characterization of Friction Based on Specific Film Thickness and Wettability Book Summary : "Friction and wear in tribological systems lead to monetary loss and environmental damage. A better understanding of factors that affect tribological behavior of a system will reduce losses and damages in a tribological system. Wetting and surface properties are important in solid-fluid interactions and hence should be considered in lubricant-surface tribological systems. Their effects on tribological behavior are not properly understood. This study analyzed the effect of wettability on tribological systems and checked whether inclusion of wettability in the analysis of friction can lead to a more unified approach. Wettability informs how a liquid will behave on a solid surface. Liquids with high wettability spread over the surface, and those with low wettability do not. Wettability depends on properties of not only the liquid but also the surface. The significance of wetting in tribological systems varies from system to system. The relative importance of wetting in tribology varies with the lubrication regime under which a system operates. The lubrication regime is characterized by lambda parameter. Based on the value of lambda there are three lubrication regimes: boundary, mixed, and hydrodynamic. Researchers claim that wetting and surface properties are important in boundary lubrication regime and insignificant in mixed and hydrodynamic lubrication. This research analyzed the effects of wetting in all the regimes to test this claim. There is disagreement among scholars on how to characterize wettability in tribological systems. Some claim that a formulation of spreading parameter that comprises polar and disperse components of surface energy and surface tension provides relevant insight. Others claim that the contact angle formed between liquid and surface is a better measure of wettability. Another group of scholars claim that a non-dimensionalized spreading parameter should be used to characterize wetting. This parameter can be calculated by contact angle. In this study, the non-dimensionalized parameter was used as it is easy to calculate. It considers non-linear relation between contact angle and wetting behavior. The results based on this parameter converge with those based on polar and disperse components to surface tension and energy. This parameter was used along with lambda to check whether different friction-coefficient versus lambda curves for various lubricant surface systems can collapse into one friction coefficient versus [lambda]*|S^* | curve. If various Stribeck curves for different systems can collapse into one curve, then the process of predicting friction and wear behavior would simplify, and thus the research in the field of tribology would accelerate."--Abstract.

Contact Angle Wettability And Adhesion Volume 1 Book PDF
✏Book Title : Contact Angle Wettability and Adhesion Volume 1
✏Author : Kash L. Mittal
✏Publisher : CRC Press
✏Release Date : 1993-10
✏Pages : 972
✏ISBN : UOM:39015032482948
✏Available Language : English, Spanish, And French

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✏Contact Angle Wettability and Adhesion Volume 1 Book Summary : This book chronicles the proceedings of the Symposium on Contact Angle, Wettability and Adhesion held in honor of Professor Robert J. Good at the American Chemical Society meeting in San Francisco, 6--10 April 1992. The book opens with a description of the professional and personal life of Professor Good, followed by 62 papers divided into four parts. The topics covered include: Contact angle, wettability and adhesion: a critical review (by Professor Good himself); capillary rise of a liquid on a solid (by Professor de Gennes, 1991 Physics Nobel Laureate); various factors influencing contact angle measurements; surface roughness effects in wetting phenomena; microscopic studies of static and dynamic contact angles; contact angles on plates and thin fibers; wettability behavior and surface characterization of various materials; wettability of pharmaceutical powders; wettability of wood; wetting properties of monolayers; control of wettability of polymers using organic surface chemistry; polymer surface modification and wettability; relevance of wettability in adhesion; wettability and bioadhesion; role of water wettability, water transport and adhesion in vision; wettability and adhesion in metal-ceramic systems; relevance of wetting in the control of dust during coal mining.

Influence Of Substrate Wettability On Colloidal Assembly Book PDF
✏Book Title : Influence of Substrate Wettability on Colloidal Assembly
✏Author : Junchao Liu
✏Publisher :
✏Release Date : 2018
✏Pages :
✏ISBN : OCLC:1154291612
✏Available Language : English, Spanish, And French

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✏Influence of Substrate Wettability on Colloidal Assembly Book Summary : In this paper, we presented a detailed discussion about the influence of the substrate wettability on the colloidal assembly and the resultant functionality of the films. It covers the basic assembly principle for colloidal crystals, the basic understanding of the substrate wettability on colloidal assembly, and the detailed explanation of the influence by give a full examples of various assembly from the substrate with distinct wettability, such as superhydrophilic, hydrophilic, hydrophobic, superhydrophobic and hydrophilic-hydrophobic pattern substrate.