bluuebunny/crossref_metadata_2025_split huggingface dataset:
Innovative Friction Reducer Provides Improved Performance and Greater Flexibility in Recycling Highly Mineralized Produced Brines
Authors: Ferguson Marcelle L. , Anderson Clifford C. , Eichelberger Peter B. , Hallock James K. , Qiu Xiaoping (Victoria) , Roell Rebecca L. 
Published: April 2013

Abstract
Currently, inverse emulsion (water-in-oil) polymers are the most widely applied friction reducers for hydraulic fracturing. While oil-external friction reducers are the industry standard, they are limited by their tolerance to water containing high Total Dissolved Solids (TDS), requiring low TDS in blended waters to achieve adequate friction reduction without the addition of an external surfactant to aid in hydration. To increase operational efficiency and reduce impact on local infrastructure, operators desire to recycle the maximum amount of produced water. To meet this goal, a friction reducer that functions unassisted in high TDS water is needed. This paper describes the use of a Dispersion Polymer Friction Reducer (DPFR) in the Marcellus Shale that addresses this need.
A salt-tolerant, water-based friction reducer was developed to allow well operators to reuse high TDS produced waters encountered in the Marcellus Shale. Both lab and field experiments were carried out to assess the effectiveness of the new friction reducer. The data presented in this paper show several advantages of the DPFR: (1) conservation of fresh water sources, (2) greater flexibility in water source options, (3) reduced analytical testing for produced water management, and (4) rapid onset of friction reduction without need for external surfactants.
The DPFR provided efficiency improvements to the service company through fewer chemicals required to achieve high pumping rates. The operator benefitted from having greater flexibility in use of produced, recovered and recycled waters. Laboratory flow loop tests indicated that the DPFR would be an effective friction reducer for a wide variety of water types, and this was confirmed by field testing as shown in the treatment plots included in this paper. Minor modifications in material handling procedures were required in the application of the DPFR.
This paper details the collaboration between a chemical manufacturer, a service company and an operator which resulted in the successful development, testing and deployment of an innovative technology in the Marcellus Shale. The DPFR technology offers environmental, economic, and operational advantages over the previous inverse-emulsion polymer technology.
Optic Imaging of Two-Phase Flow Behavior in Nano-Scale Fractures
Authors: Wu Qihua , Bai Baojun , Ma Yinfa , Ok Joeng Tai , Neeves Keith , Yin Xiaolong 
Published: April 2013

Abstract
Gas in tight sand and shale exists in underground reservoirs with microdarcy (µD) or even nanodarcy permeability ranges; these reservoirs are characterized by small pore throats and crack-like interconnections between pores. The size of the pore throats in shale may differ from the size of the saturating fluid molecules by only slightly more than one order of magnitude. The physics of fluid flow in these rocks, with measured permeability in the nanodarcy range, is poorly understood. Knowing the fluid flow behavior in the nano-range channels is of major importance for both simulation studies and calculations of the relative permeability of gas in tight shale gas systems. In this work, a lab-on-chip approach for direct visualization of the fluid flow behavior in nanochannels was developed using an advanced single-molecule imaging system combined with a nano-fluidic chip. Displacements of two-phase flow in 100 nm depth channels were characterized. Specifically, the two-phase gas slippage effect was investigated. Under experimental conditions, the gas slippage factor increased as the water saturation increased. The two-phase flow mechanism in nano-scale channels was proposed and proved by the flow pattern images. The results are crucial for permeability measurement and gas slippage factor determination for unconventional shale gas systems with nano-scale pores.
Geomechanical Considerations in Seismicity Based Reservoir Characterization
Authors: S. Mehran Hosseini , Farzam Javadpour , Mohammadali Tarrahi 
Published: April 2013

Abstract
Permeability estimation from microseismic events has been used in the oil and gas industry for more than a decade. However, some of the geomechanical assumptions associated with this technique may not essentially be representative of the field characteristics. Assumptions of shear failure along faults due to any reservoir pressure perturbation and assumption of random distribution of critical pore pressure in a chosen interval as the shear failure criteria presumably will not be representative of the shear failure criteria for the faults. We propose a new model for seismicity based reservoir characterization based on radial fluid flow in the reservoir and Mohr-Coulomb failure criteria which includes the stress state of the reservoir as well as fault friction coefficient (geomechanical reservoir properties) that were not included in the previously published models. This model relaxes some of the assumptions that were associated with former seismicity based reservoir characterization (SBRC) models. We used microseismic data from German Continental Deep Drilling Project (KTB) to test the validity of our new model. The predicted permeability from our model matches very well with the estimated and measured permeability reported values in the literature for KTB. We then performed sensitivity analyses of the effects of fault friction coefficient on estimated permeability, which showed substantial dependency of estimated permeability on fault friction coefficient. This indicates that the dependency of permeability to reservoir geomechanical properties was ignored in previous SBRC models, which is included in our model.
NMR T2 Distributions in the Eagle Ford Shale: Reflections on Pore Size
Authors: Rylander Erik , Philip M. Singer , Jiang Tianmin , Lewis Rick 
Published: April 2013

Abstract
Production of oil from organic shale reservoirs is a function of porosity, hydrocarbon saturation, pore pressure, matrix permeability, and hydraulic fracture surface area plus fracture conductivity. Hydraulic fracture surface area, porosity, saturations and pore pressure dominate initial production rates. Matrix permeability becomes increasingly important in sustaining production later in time. Permeability measurements to oil from organic shale core samples are not commercially available today. However, permeability to oil is believed to be a function of pore throat size, wettability, and water saturation, the same as a conventional reservoir. This work investigates pore size, wettability, and expelled hydrocarbon volumes using log and core-based nuclear magnetic resonance data from the Eagle Ford Shale focused on the comprehensive evaluation of one well. Comparisons with core porosity measurements, scanning electron microscope images (SEM) and mercury injection capillary pressure tests (MICP) are compared with the nuclear magnetic resonance (NMR) interpretation for calibration and validation. The NMR T2 distribution is partitioned into regions of bound and producible free fluid.
Two types of pore systems are present in the Eagle Ford Shale; kerogen-hosted (OM) and inter/intra particle (IP). Bore hole logs indicate the upper Eagle Ford Shale is dominated by IP porosity, and the lower Eagle Ford Shale is dominated by OM porosity. Core NMR indicates OM pores are hydrocarbon wet while IP pores have mixed wettability. Core pore fluids are not representative of in-situ conditions as the lighter portion of the hydrocarbons have been expelled during core recovery. Comparison between log and core measured NMR allows the quantification of the expelled hydrocarbon - those zones with the "best" producibility. Understanding which portion of a shale reservoir contains producible fluids impacts target zone selection.
Do Short Sellers Front-Run Insider Sales?
Authors: Khan Mozaffar , Lu Hai 
Published: April 2013

ABSTRACT:
We study the behavior of short sellers as informed market participants and examine potential sources of their information. Using a newly available dataset with high-frequency short sales data, we find evidence of significant increases in short sales immediately prior to large insider sales, but not prior to small insider sales. We examine a number of explanations that the increase in short sales is driven by public information, either about the firm or about the impending insider sale. The evidence is inconsistent with these explanations, but is consistent with front-running facilitated by leaked information. The front-running appears to be concentrated in firms with poor accounting quality, suggesting that information about a large insider sale reinforces short sellers' adverse opinion about firm value when accounting quality is poor.
JEL Classifications: G14, G18, G30, M41
Free vibration analysis of laminated composite plates with elastically restrained edges using FEM
Authors: Sharma Avadesh , Mittal N. 
Published: April 2013

Abstract
The application of FEM is shown for free vibration analysis of moderately thick laminated composite plates with edges elastically restrained against translation and rotation. The governing equations employed are based on the first order shear deformation theory including the effects of rotary inertia. Several combinations of translational and rotational elastic edge constraints are considered. Convergence study with respect to the number of nodes has been carried out and the results are compared with those from past investigations available only for simpler problems. Angle-ply and cross-ply laminates with different thickness-to-length ratios are examined. Comparisons are made with results for thin as well as moderately thick laminated plates.
Book Reviews
Authors: Baker Kelly J. , Tate Andrew , Davis-Stofka Beth , Ciaccio Peter , Williams Tyler F. , Scholes Jeffrey , Phelps IV Hollis D. 
Published: April 2013

McDannell, Colleen. Picturing the Faith: Photography and the Great Depression, reviewed by Kelly J. Baker Detweiler, Craig, and Barry Taylor. A Matrix of Meanings: Finding God in Pop Culture, reviewed by Andrew Tate Buhle, Paul. From the Lower East Side to Hollywood: Jews in American Popular Culture, reviewed by Beth Davies-Stofka Barsotti, Catherine M. and Robert K. Johnston. Finding God in the Movies: 33 Films of Reel Faith, reviewed by Peter Ciaccio Stone, Bryan P. Faith and Film: Theological Themes at the Cinema, reviewed by Tyler F. Williams Beaudoin, Tom. Consuming Faith: Integrating Who We Are with What We Buy, reviewed by Jeffrey Scholes Landres, J. Shawn, and Michael Berenbaum, eds. After The Passion is Gone: American Religious Consequences, reviewed by Hollis D. Phelps IV
Book Reviews
Authors: Maresco Peter , Sneed Roger , Barton Casey , Brown Robert E. 
Published: April 2013

Brasher, Brenda E. Give Me That Online Religion, reviewed by Peter Maresco Hardy, Clarence. James Baldwin’s God: Sex, Hope, and Crisis in Black Holiness Culture, reviewed by Roger Sneed Anker, Roy M. Catching Light: Looking for God in the Movies, reviewed by Casey Barton Palmer, Susan J. Aliens Adored: Rael’s UFO Religion, reviewed by Robert E. Brown
Book Reviews
Authors: Mercer Joanne , Bube Paul Custodio , Regehr Rudy , Baker Kelly J. 
Published: April 2013

Pinsky, Mark. The Gospel According to Disney: Faith, Trust and Pixie Dust., reviewed by Joanne Mercer Gilvin, Brandon. Solving the Da Vinci Code Mystery, reviewed by Paul Custodio Bube Pin, Anthony B. Noise and Spirit: The Religious and Spiritual Sensibilities of Rap Music, reviewed by Rudy Regehr Dickerson, Matthew, Following Gandalf: Epic Battles and Moral Victory in The Lord of the Rings, reviewed by Paul Custodio Bube Horsefield, Peter. Belief in the Media: Cultural Perspectives on Media and Christianity, reviewed by Kelly J. Baker
Book Reviews
Authors: Remillard Arthur , Nichols Michal , Friesen Michael N. , Kia-Choong Kevin Teo 
Published: April 2013

Chidester, David. Authentic Fakes: Religion and American Popular Culture, reviewed by Arthur Remillard Kapell, Matthew Wilhelm, and John Shelton Lawrence, eds. Finding the Force of the Star Wars Franchise: Fans, Merchandise, and Critics, reviewed by Michael Nichols Schakel, Peter J. The Way into Narnia: A Reader’s Guide, reviewed by Michael N. Friesen Plate, S. Brent, ed. Re-viewing the Passion: Mel Gibson’s Film and Its Critics, reviewed by Kevin Teo Kia-Choong
Book Reviews
Authors: Jensen Randall M , Shorkey Timothy A. , Bittarello Beatrice , Smith Andrew , Tu Steven J.H. , Mullen Thomas M. 
Published: April 2013

Riess, Jana. What Would Buffy Do? The Vampire Slayer as Spiritual Guide, reviewed by Randall M. Jensen Plate, S. Brent. Walter Benjamin, Religion, and Aesthetics: Rethinking Religion Through the Arts, reviewed by Timothy A. Shorkey Garbowskie, Christopher. Spiritual Values in Peter Jackson’s The Lord of the Rings, reviewed by Maria Beatrice Bittarello Neal, Lynn S. Romancing God: Evangelical Women and Inspirational Fiction, reviewed by Andrew Smith Allison, Dale C. The Love There That’s Sleeping: The Art and Spirituality of George Harrison, reviewed by Stephen J. H. Tu Turner, Steve. The Gospel According to the Beatles, reviewed by Thomas M. Mullen
Culture in Motion: Yiddish in Canadian Jewish Life
Authors: Margolis Rebecca 
Published: April 2013

Le vingtième siècle a vu la transformation du Yiddish au Canada: la langue s’est déplacée d’un vernaculaire immigrant, à une langue de haute culture, à une langue d’héritage et à une composante de la culture populaire juive. Cette transformation correspond à un changement de sa vie institutionnelle, notamment de la publication, la littérature, l’éducation et le théâtre et la musique. L’immigration de masse de dizaines de milliers de juifs Yiddishophones Europe de l’est au début du vingtième siècle a rendu la langue une force significative dans les centres juifs au Canada. Depuis l’Holocauste, le Canada Yiddish a montré la vitalité face à l’usure globale, tant dans la culture Yiddish séculaire modern que dans les communautés Haredi (Ultra Orthodoxes). Ses mécanismes primaires pour la transmission sont centrés sur la performance aussi bien que la traduction. The past century has transformed Yiddish in Canada: it has moved from an immigrant vernacular, to a language of high culture, to a heritage language and component of Jewish popular culture. These changes are reflected in shifts in its institutional life, notably in publishing, literature, education, and theatre and music. The mass immigration of tens of thousands of Yiddish-speaking Eastern European Jews during the early twentieth century rendered the language a significant force in Jewish centres across Canada. In the decades since the Holocaust, Yiddish Canada has shown vitality in the face of global attrition, both in modern secular Yiddish culture and in Haredi (Ultra Orthodox) communities. Its primary mechanisms for transmission are centred on performance as well as translation.
Book Reviews
Authors: Helmbold Anita , Rycenga Jennifer , Alley-Young George , Williams Howell , Bube Paul Custodio , Gilmour Michael J. , Garbowski Christopher , Lindsey Robert M. 
Published: April 2013

Connie Neal, The Gospel According to Harry Potter. Spirituality in the Stories of the World’s Most Famous Seeker, reviewed by Anita Helmbold Rodney Clapp, Border Crossings: Christian Trespasses on Popular Culture and Public Affairs, reviewed by Jennifer Rycenga William Romanowski, Eyes Wide Open: Looking for God in Popular Culture, reviewed by Gordon Alley-Young Daniel Sack, Whitebread Protestants: Food and Religion in American Culture, reviewed by Howell Williams John Granger, The Hidden Key to Harry Potter: Understanding the Meaning, Genius, and Popularity of Joanne Rowling’s Harry Potter Novels, reviewed by Paul Custodio Bube George Aichele and Richard Walsh, eds., Screening Scripture: Intertextual Connections Between Scripture and Film, reviewed by Michael J. Gilmour Richard A. Blake, Afterimage: The Indelible Catholic Imagination of Six American Filmmakers, reviewed by Christopher Garbowski Robert K. Johnston, Reel Spirituality: Theology and Film in Dialogue, reviewed by Robert M. Lindsey
Book Reviews
Authors: Clanton Dan , Fielding Julian F. , Gilmore Michael J. , Williams Howell , Vassar John , McLoud Sean , Ferreri Frank , Bowman Donna , Ashcraft Michal 
Published: April 2013

Ostwalt, Conrad. Secular Steeples: Popular Culture and the Religious Imagination, reviewed by Dan Clanton Pinsky, Mark. The Gospel According to The Simpsons: The Spiritual Life of the World's Most Animated Family, reviewed by Julien R. Fielding Billig, Michael. Rock n' Roll Jews, reviewed by Michael J. Gilmour Remsberg, Rich. Riders for God: The Story of a Christian Motorcycle Gang, reviewed by Howell Williams Cunningham, David S.Reading is Believing: The Christian Faith Through Literature and Film, reviewed by John Vassar Budde, Michael and Robert Brimlow. Christianity Incorporated: How Big Business is Buying the Church, reviewed by Michael Van Dyke Long, Carolyn Morrow. Spiritual Merchants: Religion, Magic, and Commerce, reviewed by Sean McCloud Forbes, Bruce David and Jeffrey H. Mahan, eds. Religion and Popularr Culture in America, reviewed by Frank Ferreri Lyden, John C. Films as Religion: Myths, Morals, and Rituals, reviewed by Donna Bowman Dean, William. The American Spiritual Culture: And the Invention of Jazz, Football, and the Movies, reviewed by William Michael Ashcraft
Book Reviews
Authors: Baker Kelly J. , Chan Alan L. , Moreman Christopher , Garbowski Christopher , Rycenga Jennifer , Lindley W. Terry , Ferreri Frank 
Published: April 2013

Morgan, David. Protestants and Pictures: Religion, Visual Culture, and the Age of American Mass Production, reviewed by Kelly J. Baker Davis, Walter T., Jr. Teresa Blythe, Gary Dreibelbis, Mark Scalese, Elizabeth Winans Winslea, Donald L. Ashburn, Kimberly Ayers, and Lonnie Voth. Watching What We Watch: Prime-Time Television Through the Lens of Faith., reviewed by Alan L. Chan Santino, Jack, ed.Halloween and Other Festivals of Death and Life, reviewed by Christopher Moreman Greeley, Andrew M. and Albert J. Bergesen. God in the Movies: A Sociological Investigation, reviewed by Christopher Garbowski Waldmeir, John C. Poetry, Prose and Art in the American Social Gospel Movement, 1880-1910, reviewed by Jennifer Rycenga Hangen, Tona J. Redeeming the Dial: Radio, Religion, and Popular Culture in America, reviewed by W. Terry Lindley deChant, Dell. The Sacred Santa: The Religious Dimensions of Consumer Culture, reviewed by Frank Ferreri
Book Reviews
Authors: Claton Jr. Dan W. , Craig Tim , LaGrone Matthew , Siegler Elijah , Cooke Robert , Kraemer Christine Hoff 
Published: April 2013

Fillingim, David. Redneck Liberation: Country Music as Theology, reviewed by Dan W. Claton Jr. Stevenson, Gregory. Televised Morality: The Case of Buffy the Vampire Slayer, reviewed by Tim Craig Most, Andrea. Making Americans: Jews and the Broadway Musical, reviewed by Matthew LaGrone Koschorke, Albrecht. The Holy Family and its Legacy, reviewed by Elijah Siegler Walsh, Richard. Reading the Gospels in the Dark: Portrayals of Jesus in Film, reviewed by Robert Cooke Loughlin, Gerard. Alien Sex: The Body and Desire in Theology and Cinema., reviewed by Christine Hoff Kraemer
Ice flow velocities over Vostok Subglacial Lake, East Antarctica, determined by 10 years of GNSS observations
Authors: Richter A. , Fedorov D.V. , Fritsche M. , Popov S.V. , Lipenkov V.Ya. , Ekaykin A.A. , Lukin V.V. , Matveev A.Yu. , Grebnev V.P. , Rosenau R. , Dietrich R. 
Published: April 2013

AbstractRepeated Global Navigation Satellite Systems (GNSS) observations were carried out at 50 surface markers in the Vostok Subglacial Lake (East Antarctica) region between 2001 and 2011. The horizontal ice flow velocity vectors were derived with accuracies of 1 cm a−1 and 0.5°, representing the first reliable information on ice flow kinematics in the northern part of the lake. Within the lake area, ice flow velocities do not exceed 2 m a−1. The ice flow azimuth is southeast in the southern part of the lake and turns gradually to east-northeast in the northern part. In the northern part, as the ice flow enters the lake at the western shore, the velocity decreases towards the central lake axis, then increases slightly past the central axis. In the southern part, a continued acceleration is observed from the central lake axis across the downstream grounding line. Based on the observed flow velocity vectors and ice thickness data, mean surface accumulation rates are inferred for four surface segments between Ridge B and Vostok Subglacial Lake and show a steady increase towards the north.
Development and application of a time-lapse photograph analysis method to investigate the link between tidewater glacier flow variations and supraglacial lake drainage events
Authors: Danielson Brad , Sharp Martin 
Published: April 2013

AbstractMarine-terminating glaciers may experience seasonal and short-term flow variations, which can impact rates of ice flux through the glacier terminus. We explore the relationship between variability in the flow of a large tidewater glacier (Belcher Glacier, Nunavut, Canada), the seasonal cycle of surface meltwater production and the rapid drainage of supraglacial lakes. We demonstrate a novel method for analyzing time-lapse photography to quantify lake area change rates (a proxy for net filling and drainage rates) and develop a typology of lake drainage styles. GPS records of ice motion reveal four flow acceleration events which can be linked to lake drainage events discovered in the time-lapse photography. These events are superimposed on a longer pattern of velocity variation that is linked to seasonal variation in surface melting. At the terminus of the glacier, the ice displacement associated with the lake drainage events constitutes ∼10% of the seasonally accelerated displacement or 0.4% of the total annual ice displacement (336 m a−1). While the immediate ice response to these individual perturbations may be small, these drainage events may enhance overall seasonal acceleration by opening and/or sustaining meltwater conduits to the glacier bed.
A physically based model of the year-round surface energy and mass balance of debris-covered glaciers
Authors: Lejeune Yves , Bertrand Jean-Maxime , Wagnon Patrick , Morin Samuel 
Published: April 2013

AbstractDebris-covered glaciers respond to atmospheric conditions in different ways from debris-free glaciers, due to the presence of debris at the surface during the ablation season and at the snow/ice interface during the accumulation season. Understanding the response of debris-covered glaciers to a variety of meteorological conditions in a physically sound manner is essential to quantify meltwater discharge and to predict their response to climate change. To tackle this issue, we developed the Crocus-DEB model as an adaptation of the detailed snowpack model Crocus, to simulate the energy and mass balance of debris-covered glaciers, including periods when debris is covered by snow. Crocus-DEB was evaluated with data gathered during a field experiment using artificial debris covering the snowpack at Col de Porte, France, with very good results in terms of conductive heat flux, both at the surface and at the interface between the debris and the underlying dense snow taken as a surrogate for ice, with and without snow overlying the debris. The model was also evaluated using field data from the debris-covered glacier Changri Nup, Nepal, Himalaya. This paper introduces the design of the model, its performance and its ability to explore relationships between model parameters, meteorological conditions and the critical debris thickness.