bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Use of Phone Technology in Outpatient Populations: A Systematic Review
Authors: Duarte Ana C. , Thomas Sue A. 
Published: May 2016

Objective:A systematic review was conducted to identify the types of phone technology used in the adult outpatient population with a focus on Hispanic patients and psychiatric populations.Methods:A search for articles was conducted on the EMBASE, PubMed and PsycINFO databases. Articles reviewed were peer-reviewed, full-text, English language and published through mid-November 2014.Results:Twenty-one articles were included in this review and grouped according to combinations of phone technology, medical specialty area and population. For all articles, phone technology was defined as telephone, cell, or smart phone. Technology was used in psychiatry with Hispanic population in four articles, in psychiatry with non-Hispanic population in seven articles and in other specialties with Hispanic population in ten articles. Articles were evaluated for quality. Six articles were assessed as strong, eight were moderate and seven were weak in global quality. Interventions included direct communication, text messaging, interactive voice response, camera and smart phone app. Studies with Hispanic populations used more text messaging, while studies in psychiatry favored direct communication. The majority of articles in all groups yielded improvements in health outcomes.Conclusion:Few studies have been conducted using phone technology in Hispanic and psychiatric populations. Various phone technologies can be helpful to patients in diverse populations and have demonstrated success in improving a variety of specific and overall healthcare outcomes. Phone technologies are easily adapted to numerous settings and populations and are valuable tools in efforts to increase access to care.
High-Speed Rail, Corporate Real Estate and Firm Location in the Central Business District: The Results from Two Surveys (2008; 2014) in Reims
Authors: Bazin-Benoit Sylvie , Beckerich Christophe , Delaplace Marie 
Published: May 2016

The arrival of High Speed Rail (HSR) often gives rise to a development of office and corporate real estate programs around the central station where firms are expected to locate. But the question is to know if HSR is, in itself, a location factor or if it induces an indirect effect by triggering a supply of business real estate, which then explains the location of firms. The aim of this paper is to identify the exact role of HSR in firms’ choice of location, and on real estate supply, at the time of opening of HSR services and during their development.We analyzed the case of Reims, a city served since 2007 by the Eastern Europe High Speed Line. Its district near the central station has been transformed into a so-called business district. Two surveys interviewing firms were conducted in 2008 and 2014 respectively. The results of the first survey clearly show that use of HSR does not directly explain the location, but the image effect it generates real estate investments. Such programs quickly find real estate buyers and tenants, mainly local ones, but less from companies outside the city. The second survey makes it possible to identify whether the dynamics noticed in the short term, where strong expectations existed, are still relevant seven years later. Interviews with developers and investors make it possible to identify the reasons why they have invested in this district. This last survey shows the importance of local developers, local public stakeholders and of land availability, but also that HSR becomes, for some firms, a direct location factor.
How Insights from the “New” JDM Research Can Improve Auditor Judgment: Fundamental Research Questions and Methodological Advice
Authors: Griffith Emily E. , Kadous Kathryn , Young Donald 
Published: May 2016

SUMMARY
We examine recent developments in judgment and decision-making (JDM) research to provide insight into how two big ideas in this area can be leveraged as overlapping frameworks to examine and improve auditor judgment. The ideas are (1) that human thinking and reasoning can be characterized by a dual-process model and (2) that conscious and nonconscious goals drive cognition. Despite that these ideas are well established in the broader JDM literature and have great promise for improving auditor judgment, we observe minimal use of them in the audit JDM literature. Thus, we briefly outline these ideas, and we develop fundamental, high-level research questions related to audit JDM research that are based on these ideas. Finally, we provide guidance for designing and evaluating experiments that effectively use these frameworks, whether in auditing or other rich decision-making contexts. The frameworks can help researchers improve audit quality by enhancing our understanding of auditors' judgment processes and the factors that influence them, by allowing for new ways of thinking about how to improve auditor judgment, and by suggesting new interventions for improving auditor judgment.
Optimisation Study of Production-Injection Ratio for Steam Flooding
Authors: Xia Zhang , Xialin Zhang 
Published: May 2016

Abstract
Production-injection ratio (PIR) is one of the most important factors to affect steam flooding performance. Previous research and field applications of steam flooding have confirmed a common conclusion that the production- injection ratio should not be less 1.2 to achieve higher oil recovery for a conventional heavy oil reservoir.
This paper presents the optimization study of production-injection ratio for an unconventional heavy oil reservoir with edge/bottom water. Aimed to Jin 45 Block of Liaohe Oilfield, experimental and numerical simulations are carried out and sensibility analyses are focused on the effect of aquifer size. Compared to the conventional heavy oil reservoir, the results of this study have validated as follows:The optimum production-injection ratio (OPIR) of Jin 45 block steam flooding is significantly dependent on the size of its aquifer. Actually, if only the reservoir pressure is available to steam flooding, the OPIR will reduce with aquifer increasing.With the aquifer increasing, the reservoir pressure before steam flooding will relatively increases, thus steam specific volume decreasing and production-injection balance point removing.The difference of production-injection ratio reflects a balance relationship between production and injection underground. For a heavy oil reservoir with edge water, production-injection balance should be completely maintained to prevent water invading which will seriously lead to bad thermal efficiency of steam flooding.Note that the OPIR should be understood as an average concept. Essentially, the production-injection ratio is differently implemented at different stages of steam flooding. Hence, the interval ratio will be corresponding different.
This paper suggests that actual reservoir condition and production performance should be globally taken into account to optimize the production-injection ratio at every stage of steam flooding. It is a considerable strategy to satisfy the management requirement of steam flooding program.
Nano-Ceramic Coatings - A Means for Enhancing Bit Life and Reducing Drill String Trips
Authors: Sengupta Soumyadipta , Kumar Animesh 
Published: May 2016

Abstract
Drilling bit is the main tool which performs the task of grinding and cutting through the formation. This causes cracking, spallation and delamination of the drilling bit and it needs to be replaced periodically depending upon the formation conditions. This replacement of the bit require stripping the drill string and running it in again which causes loss of time. Also, a new bit has to be installed which causes monetary loss. Coating the bit with Nano-Ceramic coatings can help reduce the wear and tear significantly. Another promising fact is that these coatings don't allow the metal substrate below to be affected. So, the worn out bit can be recoated with a fresh layer of Nano-Ceramic coatings and be reused. This paper shall go through the Nano-Ceramic crystalline structure, coating processes, testing mechanical properties (Young's Modulus, Bond strength, Tensile strength) of the coatings and the comparison of mechanical properties of conventional and Nanostructured coatings. An application of this technology will be to use it for bits to drill highly abrasive formations like those formed by igneous rocks.
The Nano-Ceramic coatings are made from an Al2O3-TiO2 Nano-Ceramic powder. This is applied on the bit surface via plasma coating method. The powder is partially melted to form grains of varying sizes. This lack of homogeneity is a major factor in enhancement of mechanical properties which will be explained further in the paper. There is a marked reduction in propagation of cracks as seen under SEM photographs. There is doubling of Bond strength as compared to conventional coatings. The toughness is about 2–4 times that of a conventional coating. This shall be further illustrated in the paper with help of graphs and images.
This technology could lead to huge savings for operators as tripping frequency would be reduced. The replaceability of the bit also ensures savings for the operating company.
How Ball Materials Impact the Performance of Open Hole Fracturing Systems
Authors: Baihly Jason , Johnson Joshua , Melenyzer George , Aviles Isaac 
Published: May 2016

Abstract
During the past decade, the completion technique used in liquid-richun conventional plays in North America has undergone a transformation. Today, the vast majority of completions in these areas are open-hole (OH) graduated ball-drop fracturing isolation systems. This preferred completion type for horizontal wells is driven by the efficiency gains in fracturing operations and the production gains when compared to previously used completion techniques. Thousands of open-hole fracturing systems are run each year, with a continuously growing stage count.
Graduated ball-drop type completions rely on a sliding sleeve activated by a ball dropped from surface. Each ball travels the length of the lateral well to its intended operational depth, at which it meets a mated seat and isolates the wellbore below. Once the ball is in position, the sliding sleeve opens via the hydraulic force on the ball and seat, allowing a fracturing stage to commence. This dual function of the ball—activation and sealing—is of extreme importance for the stimulation treatment process. If the ball fails, it will result in bypassed pay zones and unintentional refracturing of previously stimulated zones. Although sometimes surface pressures can be used to infer ball behavior, often the pressure signals observed at surface cannot guarantee successful ball performance.
This paper will present an extensive study of ball performance under pressure for the most common ball materials in the industry. Phenolic, composite and metal alloy materials were explored with the pros and cons for each investigated. In particular three main areas were analyzed:molding, layering and extrusion of material versus inconsistencies in ball performance;ball deformation at high pressure versus pressure required to bring the ball off seat; andcomparison of the performance of phenolic, composite and metal alloy materials for ball fabrication and their performance at high temperature.
Manufacturing variability is also explored on this paper. The impact on the manufacturing process on the performance of balls made of the same material is presented by means of laboratory experimentation.
The conclusions from this paper provide operators the necessary information to consider when making completion and ball material decisions in their field operations. In particular, the results of this testing may illuminate some previously unexplainable occurrences in graduated ball sliding-sleeve systems. This testing clarified that not all fracturing balls pumped in horizontal wells perform equivalently under wellbore fracture conditions.
Effective Uncertainty Management Strategies to Successfully Deliver Horizontal Well in Changbei Gas Field
Authors: Wu Lei , Yang Ping , Pranata Haruji M. , Su Wu , Xu Li , Wang Xueqin , Yang Yatao 
Published: May 2016

Abstract
Multi-lateral horizontal wells are being applied in field development extensively, especially in unconventional oil and gas reservoir in order to maximize economic development of it. Uncertainties are always present and are very significant in unconventional oil and gas reservoir. These uncertainties could be Geology-related and Engineering-related or exist in the available data. Industry has been using uncertainty analysis to identify, address and mitigate risk. Horizontal well objectives in Changbei Field are to drill 2kmdual lateral wells into thin reservoir while maximizing production and minimizing well cost. One of prime challenges was to land and drill in &lt;10m reservoir in channel margin by using conventional tool under limited budget, this was particularly challenging in Changbei's braided channel complex with high reservoir heterogeneity.
By classifying all uncertainties available during delivering horizontal well, this paper takes Changbei tight gas field as an example to discuss an integrated application of the workflow performing uncertainty analysis on geological and engineering parameters and identify the effective uncertainty management strategies based on it.
The proposed uncertainty management strategies have been applied to tens of horizontal well in Changbei gas field, and the operation result show that it reduced the associated risks or uncertainties substantially compared to the pre-applied case and improved horizontal wells planning and placement efficiently and economically.
Reserve Reporting Under Modern Fiscal Agreements
Authors: Young E.D. , Lasswell F.M. 
Published: May 2016

Abstract
In the exploration, development, and production of oil and gas resources, the ability to report reserves can be an important factor for many companies when considering upstream opportunities to invest and participate in. A common misconception is that when a company reports reserves, the reserves and underlying resources are owned by the company. While this may be true for some forms of concession and lease agreements, resource ownership almost always remains with the host government under modern production sharing (PSC) and risked technical service agreements (TSA). Reserves are primarily reported to comply with host country resource management requirements or the contractor'shome country capital market regulatory rules. The reporting of reserves reporting does not necessarily imply resource ownership.
This paper discusses why the reporting of reserves is an important consideration for many companies and focuses on the key principles and agreement elements that enable reserves to be reported under a wide range of agreement types. The paper also discusses how the evolution of fiscal agreements, from early concessions through present-day risked technical service agreements has changed the way reported reserves are determined. In addition, the paper includes a brief discussion of the industry classification systems that are used to characterize reserves and how the investment community utilizes reserves information to assess company performance.
The authors hope that the discussion and insights offered by this paper will improve the understanding of the basis for reserve reporting, clarify that reserve reporting does not necessarily imply ownership of the underlying resources and will help enhance the development of mutually beneficial fiscal agreements in the future.
Well Architecture: Prediction of the Life Cycle Critical Drawdown Offered by Means of Passive Sand Control
Authors: Chong Danny , Chan Keng Seng 
Published: May 2016

Abstract
Most Geomechanical studies detail the conditions of which a given reservoir will fail given the stress states and rock strength. A full study usually involves rock mechanic tests, verification of in situ stresses, and the calibration of logs to produce a mechanical earth model. The result of these studies is usually the critical drawdown and bottom hole pressures at current and future depleted pressures.
There is, however, no published method on how to evaluate the value of sand control in a given field development. This issue can become a hindrance when it comes to finalizing or justifying a particular AFE budget. A method is formulated where the critical bottom hole flowing pressure is determined from a verified sand failure criterion. An abandonment pressure is predetermined, and material balance calculations are done for every fixed pressure drop. The inflow performance relationship is developed from deterministic parameters, and adjusted to well test results. A critical flowing rate is then inferred from the critical flowing bottom hole pressure. Pressure conditions where the sand fails results in a critical flowing rate of zero. The cumulative production and producing duration can then be determined. This method can be programmed in a computer spreadsheet asiterations are required for the numerical determination of critical drawdown and material balance calculations. The dynamic coupling between sand failure prediction, inflow performance, and material balance calculation enables the life cycle evaluation of passive sand control.
This paper provides a general guideline of optimizing EUR and the producing duration by minimizing sand production risk through optimized well trajectory, perforation orientation, selective perforation, and sand face completion design
Simulation of Three Phase Capillary Pressure Curves Directly in 2D Rock Images
Authors: Zhou Y. , Helland J.O. , Hatzignatiou D.G. 
Published: May 2016

Abstract
Pore-scale modeling of three-phase capillary pressure in realistic poregeometries could contribute to an increased knowledge of three-phase displacement mechanisms and also provide support to time-consuming and challenging core-scale laboratory measurements. In this work we have developed a semi-analytical model for computing three-phase capillary pressure curves and the corresponding three-phase fluid configurations in uniformly-wet rock image sencountered during tertiary gas invasion. The fluid configurations and favorable entry pressure are determined based on free energy minimization by combining all physically allowed gas-oil, gas-water, and oil-water arc menisciin various ways. The model is shown to reproduce all three-phase displacements and capillary entry pressures that previously have been derived in idealized angular tubes for gas invasion at uniform water-wet conditions. These single-pore displacement mechanisms include (i) gas invasion into pores occupied by oil and water leading to simultaneous displacement of the three fluids, (ii) simultaneous invasion of bulk gas and surrounding oil into water filled pores, and finally (iii) the pure two-phase fluid displacements in which gas invades pores occupied by either water or oil.
The proposed novel semi-analytical model is validated against existing analytical solutions developed in a star-shape pore space, and subsequently employed on an SEM image of Bentheim sandstone to simulate three-phase fluid configurations and capillary pressure curves at uniform water-wet conditions and different spreading coefficents. The simulated fluid configurations for the different spreading coefficients show similar oil layer behaviour as previously published experimental three-phase fluid configurations obtained by computed microtomography in Bentheim sandstone. The computed saturation paths indicate that three-phase oil-water capillary pressure is a function of the water saturation only, whereas the three-phase gas-oilcapillary pressure appears to be a function of two saturations. This is explained by the three-phase displacements occurring in the majority of the simulations, in which gas-water interfaces form immediately during gas invasion into oil- and water-saturated pore shapes.
Platong Gas II Project - World Class Project Execution Through Processes and People
Authors: Maleevat R. , Sae-Seai S. , Werner K.S. 
Published: May 2016

Abstract
In October 2011, Chevron Thailand Exploration and Production Limited (CTEP)reached an important milestone with the commissioning and start up the PlatongGas II Central Process Platform (CPP). The CPP is able to deliver up to 420MMSCFD of natural gas and 22,000 BPD of condensate with full water injection facilities. This represents a 20% increase in total gas production from CTEP operated assets, as well as a 10 % increase in the overall gas production for the Kingdom of Thailand. Importantly, this was achieved without compromising large base business operations which deliver up to 1600 MMSCFD of natural gas to Thailand. The $3.1 billion project was successfully delivered by the project team after overcoming many challenges which could have adversely impacted both cost and schedule. Significant challenges included: the hi-jacking of structural steel, high casing wear in wells during drilling and development, and a pipeline integrity event.
In the face of these challenges, the project went from Final Investment Decision (FID) in March 2008 to full production in October 2011 with "best inclass" on safety, project execution and reserve discovery performance. With the largest float over topside ever installed by Chevron (19,200 tons) and the initial 4 remote production platforms with 92 drilled wells, the project team achieved a flawless, world class start up to full production within two weeks.
Each of the challenges faced by this project was overcome by delivering high performance through people and processes aligned with the Chevron Way. The execution plan focused on putting the right mix of experienced people together so subject matter experts (both internal and external) from engineering and base business operations could effectively combine and successfully deliver the project. The value placed around collaboration with the asset team and offshore operations team ensured a seamless transition to operations. Standard processes employed included the disciplined application of reservoir management best practices, leading drilling technology, well head platforms and pipelines fabrication and installation, and Chevron's MCP project management tool kit. Together, people and processes led to a safe and world class project and positioned Platong Gas II as a model of Chevron Project execution via an integrated multifunctional team.