bluuebunny/crossref_metadata_2025_split huggingface dataset:
Light Well Intervention Using Conventional Slickline and Electric Line off the East Coast of Canada
Authors: Loov R. , Locken D. , McInnes N. , Chippett E. 
Published: March 2015

Abstract
Well intervention is a critical aspect of managing brownfield assets as operators seek to optimize hydrocarbon recovery and perform maintenance work to ensure wellbore integrity. The costs of traditional workover methods and technologies, specifically in an offshore environment, can create economic barriers to the number and types of interventions that are completed in a declining field. Light well intervention technology is considered a cost effective alternative to performing rig interventions on aging subsea wells.
Operators and service providers continually seek to develop technologies and procedures that mitigate economic risk when working on these mature production wellbores. One revolution that has been in development for the past few decades involves using conventional slickline and electric line to perform light well interventions without the requirement of an offshore drilling or workover rig. This process uses a light well intervention vessel (LWIV) complete with a moonpool located mid-deck for open-sea access, a riserless pressure control package typically involving remotely operated vehicles (ROVs), and a combination of conventional slickline and electric line intervention packages. Interventions using this technology adaptation were primarily developed for the North Sea and Gulf of Mexico regions and have been widely used in those regions. However, after several years of planning, the technology has now been used for the first time to rework several wells for an operator off the east coast of Canada.
Light, riserless, well intervention technologies have been deployed in three individual wellbores offshore Canada. Multiple services were required in each of these three wellbores. Conventional slickline operations were run to prepare each of wellbores, with the retrieval of crown plugs and conventional drift runs. Operations then switched to electric line services to perform diagnostic runs followed by remedial intervention services. Once the electric line services were completed, slickline services were used for safety valve isolations and gas lift remedial work and then returning the newly configured wells back to production mode. The use of the LWIV provided the operator with an efficient intervention technique to evaluate and potentially improve well performance.
A New Approach to In-Service Coiled Tubing Improved Inspection Based Micro-Magnetic Technology
Authors: ZhaoMing Zhou , TaiHe Shi , Runqiao Yu , Fu Wan 
Published: March 2015

Abstract
Mechanical defects are incurred routinely in the coiled tubing (CT), and can have a first order influence on fatigue crack development. Failures of the CT can significantly impact operations and in a worst case can lead to the loss of a well. This paper developed the new non-contact CT assessment system with the new inspection method, which is suitable for the detection in-service and new coiled tubing. This paper proposes a new micro-magnetic detection technology for rapid detection in-service coiled tubing. The method is based on a high precision fluxgate sensor that measures the magnetic field changes in the geomagnetic field, without needing external magnetization and demagnetization to identify the location of the defect. We use iron base amorphous alloy to make the smallerfluxgate sensor. This method is effective in assessing the early damage and developed defects. Eddy current lift-off technique is used for the gap measurement and design ovality detection algorithm. The ovality is obtained through calculation of the software. The optical distance measure sensor measures down to the length of the coiled tubing. The test tool is designed and produced and can be installed and removed fast. 2D imaging is achieved and features the shape of defect. This system is available for various CT diameters. Data acquisition software real-time display flaws curve and the detection imaging. The tool can realize non-contact, measure wall thickness, diameter, ovality, and can fast nondestructively test in-service coiled tubing. The resolution of the testing instrument is 1 mm. It is easy-operating and time-saving, and has the maximum measuring velocity of up to several meters per second. Detection results are close to accurate location of prefabricated corrosion defects through inspection CT test sample. However, as a comparatively new test method, it still has a large room to be improved. Micro-magnetic measurement signals are weak, and its amplitude is small and unperturbed by the environment. Inspection of in-service coiled tubing still need to improve and develop.
Use of Real-Time BHA Data to Enhance Predictability and Safety of Coiled Tubing Solids Removal Operations in New Zealand
Authors: Mallanao Genesis , Saunders Preston , Peralta Javier H 
Published: March 2015

Abstract
Coiled tubing (CT) cleanout operations in New Zealand require extremely detailed planning and execution. When significant proppant is left in the well as a result of hydraulic fracture screenout, customer concern requires ensuring that hydrocarbons are not produced and returned to temporary surface equipment during the cleanout operation. During solids removal, the solid rate of return at surface must be limited to prevent erosion of flowback equipment.
To reduce operator uncertainty during this process, modeling with a solids transport simulator, along with a real-time downhole communication system, was used to provide real-time pressure data at downhole conditions. To provide an engineered cleanout, one of the modeling goals was to determine the predicted maximum solids return rates so the flowback choke integrity was maintained. Real-time monitoring of downhole information during the operation enabled a hydrostatic pressure calculation based on true vertical depth (TVD) to determine the equivalent circulation density (ECD) of the fluid column. Determining the ECD enabled the estimation of the solids concentration in the fluid returned via the annulus (tubing/CT). Consequently, an increase of hydrostatic pressure (relative to water) at downhole conditions correlated to an increase of solids concentration in the fluid column during the cleanout phase. By monitoring this increase in the ECD during the sand cleanout, the operator had an early indication of an increase in solids concentration in the fluid returns. This knowledge enabled the operator to manage the flowback operation at the surface, without exceeding surface equipment specifications. The process met customer requirements for enhanced proppant cleanout operations.
This paper details the background of the operator cleanout requirements, the pre-job design analysis used, the job parameters during execution, and the incorporated improvements made compared with conventional well interventions.
Laboratory Study of Water Shutoff by Activated Heavy Oil for High Temperature and High Salinity Reservoirs
Authors: Yang Wang , Jijiang Ge , Yonggang Zhang , Guicai Zhang , Wenchao Zhou 
Published: March 2015

Abstract
Activated heavy oil is a favorable blocking agent, because of its good selectivity and recyclability. In this paper, by simulating the reservoir conditions of Tahe Oilfield, the feasibility of water shutoff by activated heavy oil for high temperature, high salinity and high hardness reservoirs has been studied. Based on the reservoir characteristics, a nonionic-anionic compound emulsifier of 2 % MZ-18 + 3 % BH-12 (MZ-18 = nonionic amide emulsifier condensed by long chain carboxylic acid and polyethylene polyamine; BH-12 = anionic sulfonate emulsifier) was screened out as the optimum emulsification system for the activated heavy oil. The W/O emulsion prepared by the activated heavy oil is of high viscosity; besides, its temperature resistance, salinity tolerance and thermal stability were competent to Tahe reservoir. The water shutoff performance of activated heavy oil was evaluated by the physical simulation experiments. The results show that the activated heavy oil can improve the water shutoff performance and flushing resistance performance in a wide range of permeability – from 300 to 1 500 mD. Also it is found that, the water shutoff ability of the activated heavy oil increases with the increase of permeability of the sands, injection rate of blocking agent as well as the displacing rate of displacement fluid.
Electrokinetic Potentials of Cotton Fabrics Dyed and Finished in Presence of LAS and Alkyl Polyglucosides and Dye Transfer Inhibitor
Authors: Carrión-Fité Francisco J. 
Published: March 2015

Abstract
In this work we aimed our focus at the determination of the zeta potentials of a standard fabric of cotton Empa type (dyed, finished and softened), which was washed in the presence of surfactants and of a copolymer of action DTI – dye transfer inhibition agent –. The copolymer DTI the type VI/PVP, was used. The washing with ecological surfactants such as: a sodium dodecylbenzene sulfonate (LAS) mixed with an non-ionic alkylpolyglucoside (APG) was made. The cotton fabric was dyed with three different direct dyes (with different molecular weights), finished by the resin of DMDHEU (dimethylol dihydroxy ethylene urea) and softened with a microemulsionated compound of ammoniumsilicone. The variation of zeta potential of cotton articles was obtained under the influence of the total concentration and the proportion of mixture of the surfactants anionic with non-ionic, and of these separately. The polymer DTI stayed to constant concentration, when mixing it with the surfactants. The variation of the zeta potentials of the cotton undyed and finished in function of the DTI were obtained.
Production cross–section calculations of medical 32P, 117Sn, 153Sm and 186,188Re radionuclides used in bone pain palliation treatment
Authors: Demir B. , Kaplan A. , Çapalı V. , Sarpün İ. H. , Aydın A. , Tel E. 
Published: March 2015

Abstract
In this study, production cross–section calculations of 32P, 117Sn, 153Sm and 186,188Re radionuclides used in bone pain palliation treatment produced by 30Si(d,γ)32P, 118Sn(γ,n)117Sn, 116Sn(n,γ)117Sn, 150Nd(α,n)153Sm, 154Sm(n,2n)153Sm, 152Sm(n,γ)153Sm, 186W(d,2n)186Re, 187Re(γ,n)186Re, 185Re(n,γ)186Re and 187Re(n,γ)188Re reactions have been investigated in the different incident energy range of 0.003–34 MeV. Two-component exciton and generalised superfluid models of the TALYS 1.6 and exciton and generalised superfluid models of the EMPIRE 3.1 computer codes have been used to pre-equilibrium (PEQ) reaction calculations. The calculated production cross–section results have been compared with available experimental results existing in the experimental nuclear reaction database (EXFOR). Except the 118Sn(γ,n)117Sn, 150Nd(α,n)153Sm and 185Re(n,γ)186Re reactions, the two-component exciton model calculations of TALYS 1.6 code exhibit generally good agreement with the experimental measurements for all reactions used in this present study.
Evaluation of advanced displacement cross-sections for the major EUROFER constituents based on an atomistic modelling approach
Authors: Konobeyev A. Yu. , Fischer U. , Pereslavtsev P. E. 
Published: March 2015

Abstract
The displacement cross-sections were evaluated for main components of EUROFER at the energies of primary neutrons up to 150 MeV. The number of primary defects was calculated using an advanced binary collision approximation model applying results of molecular dynamics simulations. The cross-sections obtained were processed into ENDF and ACE formatted data and tested using the MCNP code.
3D reconstruction and characterization of carbides in Ni-based high carbon alloy in a FIB-SEM system
Authors: Bala Piotr , Tsyrulin Katja , Jaksch Heiner , Stepien Milena 
Published: March 2015

Abstract
Dual beam focused ion beam scanning electron microscopes (FIB-SEMs) are well suited for characterizing micron and submicron size microstructural features in three dimensions throughout a serial-sectioning experiment. In this article, a FIB-SEM instrument was used to collect morphological, crystallographic, and chemical information for an Ni–Ta–Al–Cr alloy of high carbon content. The alloy has been designed to have excellent tribological properties at elevated temperatures. The morphology, spatial distribution, scale, and degree of interconnection of primary carbides in the Ni–Ta–Al–Cr–C alloy was assessed via serial sectioning in a casting cross-section. The 3D reconstructions showed that the primary carbides and dendrites were forming a dendrite surrounded by primary carbide network over the entire cross-section. Additionally, the morphology and spatial distribution of secondary carbides after heat treatment was determined.
Influence of casting procedure on microstructure and properties of Mg alloy–glassy carbon particle composite
Authors: Olszówka-Myalska Anita , Myalski Jerzy , Chrapoński Jacek 
Published: March 2015

Abstract
The article presents the microstructure and properties of a new cast composite material with a magnesium alloy matrix (Zn 0.7 wt.%, Zr 0.06 wt.%, Nd 0.41 wt.%, Gd 0.21 wt.% and Mn 0.03 wt.%) and glassy carbon particles (10 wt.%, granulation 70–100 μm), dedicated to a technical application under dry friction conditions, manufactured under industrial conditions from a particle–metal suspension. Microstructural examination revealed that the pressure die casting method eliminates the microvoids formed in the gravity cast process both in the matrix and at the interface and also that it decreases the effect of Zr and other phases accumulating around the particles. The applied procedure of particle extraction from the composite's matrix, followed by scanning electron microscopy examination with energy dispersive spectroscopy, revealed the influence of Nd and Gd on the microstructure of the particle–matrix interface. The results of the mechanical and tribological properties tests showed that the application of pressure die casting method for the processing of Mg–GCp composite products improved those properties.
Microstructure and interfacial reactions in the bonding zone of explosively welded Zr700 and carbon steel plates
Authors: Paul Henryk , Morgiel Jerzy , Faryna Marek , Prażmowski Mariusz , Miszczyk Magdalena 
Published: March 2015

Abstract
The microstructure of an explosive cladding joint formed between parallel Zr700 alloy and carbon steel plates was examined with the use of scanning and transmission electron microscopes equipped with energy dispersive spectrometry. The study focused on near-the-interface microstructural changes and possible interdiffusion between the plates. At the macro-scale, the interfaces were outlined by a characteristic sharp transition, indicating that there was no mechanical mixing between the welded metals in the solid state. At the micro-scale, the melted zones often showed non-uniform swirl-like areas of a similar contrast. The nano-scale analysis revealed that the melted areas were composed of mixed amorphous and nano-crystalline phases. The bonding was always achieved by way of surface melting of the joined materials, which might be invisible for observation methods other than transmission electron microscopy.
Development of new spectrophotometric method for estimation of tenofovir disoproxil fumarate using MBTH reagent
Authors: Varsha Mannem Sri , Babu N. Raghavendra , Padmavathi Yenumula , Kumar P. Ravi 
Published: March 2015

A new simple, sensitive and specific procedure has been developed for determination of tenofovir disoproxil fumarate in bulk and pharmaceutical dosage forms using MBTH reagent. The purpose of this analytical validation procedure is to validate it by laboratory experiments to prove that the method meets the minimum standards for laboratory use. 3-methyl-2-bezothiazoline hydrazone reacts with the secondary amine group of tenofovir in the presence of oxidizing agent, ferric chloride. The resulting apple green coloured chromogen when measured spectrophotometrically in visible region (i.e., 400-800nm) shows a maximum absorbance at 626.5nm. This method can be successfully applied for the determination of drug content in pharmaceutical formulations. The results of analysis have been validated statistically.DOI: http://dx.doi.org/10.3329/icpj.v4i4.22620 International Current Pharmaceutical Journal, March 2015, 4(4): 378-381
New Methodologies for Patients Rehabilitation
Authors: Mashat A. S. , Lange B. , Fardoun H. M. 
Published: March 2015

SummaryObjective: The present editorial is part of the focus theme of Methods of Information in Medicine titled “New Methodologies for Patients Rehabilitation”, with a specific focus on technologies and human factors related to the use of Information and Communication Technologies (ICT) for improving patient rehabilitation.Methods: The focus theme explores different dimensions of empowerment methodologies for disabled people in terms of rehabilitation and health care, and to explores the extent to which ICT is a useful tool in this process.Results: The focus theme lists a set of research papers that present different ways of using ICT to develop advanced systems that help disabled people in their rehabilitation process.
Traumatisme et travail : un siècle après les névroses de guerre
Authors: Demaegdt Christophe 
Published: March 2015

Les remaniements de la théorie traumatique opérés à la suite de la première guerre mondiale sont largement tributaires des problèmes cliniques posés par les « névroses de guerre ». L’auteur souligne que les controverses étiologiques portant sur cette entité clinique historiquement datée, et les conceptions traumatiques qui s’y réfèrent, n’accordent aucune place à l’expérience subjective du travail. À partir des connaissances spécifiques tirées de la psychopathologie du travail, cet article indique la fécondité et l’actualité de certaines questions métapsychologiques soulevées, mais résolument non soldées, par ces névroses de guerre. Il engage une discussion théorique sur les rapports entre travail, violence, et traumatisme, qui débouche sur la question suivante : Est-il possible de concevoir une théorie psychanalytique du traumatisme sans accorder une place conséquente à l’analyse du travail ?
De l’extrême dans le travail de comédien et des questionnements qui s’ensuivent
Authors: Potiron Marie 
Published: March 2015

Dans le cadre d’une recherche clinique autour du travail de comédien qui engage profondément le corps, la question de l’extrême a surgi. À travers un parcours, adossé à la clinique, partant de la notion de sublimation dans l’œuvre freudienne jusqu’aux propositions de la psychodynamique du travail qui s’y articulent, comment entendre et comprendre le surgissement de cette dimension ? Que disent, du travail de comédien, ces « expériences extrêmes » ? S’agit-il d’une caractéristique du travail de comédien ?
Een aanzet voor een methodiek tot het voorkomen van (internationale) insolventies
Authors: Adriaanse Jan A.A. , van Beukering Ellen J.M. , van der Rest Jean-Pierre I. 
Published: March 2015

A first step towards a methodology for avoiding (international) insolvenciesReport of practical research towards better conflict management at companies in financial distress
Research has been conducted by Leiden Law School into the efficacy of an instrument based on insolvency practice, ‘Harvard negotiation’ and ‘serious gaming’ aiming at better conflict management in case of (near) bankruptcy. Business rescue workout simulation games were played at different places worldwide. Serious gaming provides insight in the complexity and dynamics of (informal) reorganizations. The research further confirms that the Harvard negotiation-principles and the INSOL International Statement of Principles for a Global approach to multi-creditor workouts may provide a useful contribution to the realization of a successful (international) financial restructuring. The intervention of skilled neutrals is often significative. More focus on communication, negotiation and cooperative dispute resolution is also consistent with the initiatives of legislators and policymakers which stimulate companies to restructure at an early stage of financial distress. These developments also make ADR-skills become of more relevance to (insolvency) professionals.
ADHD: Ten Ideas for School Success
Authors: Ramer Linda L. , Gordon Deborah H. 
Published: March 2015

Abstract
Every parent wants his or her child to succeed in school. It may seem to take a Herculean effort on the part of the parents, but it is the parents who can make the difference between success and failure for a child with ADHD. In this article, we'll give you a “top 10 list” of ways you can help your child succeed in school. Parents don't have to be superhuman and perfectly consistent for these suggestions to work, but doing your best to follow them, especially working with your child's teachers as team members, will help your child succeed academically.
Deformation and seismicity near Sabancaya volcano, southern Peru, from 2002 to 2015
Authors: Jay Jennifer A. , Delgado Francisco J. , Torres José Luis , Pritchard Matthew E. , Macedo Orlando , Aguilar Victor 
Published: March 2015

AbstractWe use interferometric synthetic aperture radar (InSAR) and local seismic data to investigate the cause of earthquake sequences near Sabancaya volcano in southern Peru from 2002 to 2014, with a particular focus on events leading up to the August 2014 phreatic eruption. InSAR‐observed deformation associated with earthquake swarms in late 2002, February 2013, and July 2013 is modeled by fault slip, with no need for magmatic sources to explain the deformation. The majority of the seismicity is an expression of the regional tectonic system, which is characterized by E‐W trending normal faults, but a link to the magmatic system is possible. The Mw 5.9 earthquake on 17 July 2013 occurred on a previously unmapped normal fault that continued to deform in the months following the earthquake. An increase in long period and hybrid seismicity and changes in fumarolic emissions in 2013–2014 culminating in the August 2014 eruption indicates the involvement of both tectonic and magmatic systems.
Dynamic Systems in Developmental Science
Authors: Witherington David C. 
Published: March 2015

AbstractIn its mathematical, methodological, and conceptual grounding, the dynamic systems (DS) approach to development offers a unique, relationally focused model for understanding developmental process. Proponents of the DS approach, however, are metatheoretically divided with respect to what constitutes the very nature of explanation in developmental science, resulting in two distinct ontological frameworks within the approach: an inclusive, pluralistic framework and an exclusive, monistic framework. The purpose of this chapter is to articulate the metatheoretical divide that currently exists within theDSapproach and to address the implications of this divide for realization of the approach's potential as a Relational‐Developmental‐Systems paradigm. The chapter begins with an overview of historical influences on theDSapproach to development, specifically targeting the multidisciplinary frameworks of von Bertalanffy's general systems theory and nonlinear dynamical systems theory. Alternate ways of marrying these multidisciplinary influences are discussed and used to anchor the chapter's delineation of theDSapproach to development through its ontologically distinct variants. The chapter ends by framing metatheoretical division within the DS approach in terms of the Relational‐Developmental‐Systems and Cartesian‐Split‐Mechanistic paradigms.