bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid Microseismic and Microdeformation Monitoring of a Coal-Seam-Gas Well
Authors: Wilson Adam 
Published: October 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 182300, “Hybrid Downhole Microseismic and Microdeformation Monitoring of a Vertical Coal-Seam-Gas Well,” by R. Durant and T. Francis, SPE, Halliburton, and R.L. Braikenridge, SPE, and M. Roy, SPE, AGL Energy, prepared for the 2016 SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 25–27 October. The paper has not been peer reviewed.
Providing confidence that hydraulic-fracture geometries are relatively confined to target coal seams and do not grow upward into beneficial groundwater aquifers is a primary concern. A hybrid downhole microseismic and microdeformation array was deployed to monitor fracture stimulation of a vertical coal-seam-gas (CSG) exploration well in the Gloucester Basin in New South Wales, Australia, to provide more-accurate insight into overall fracture height. These technologies complement each other by providing unique, far-field determinations of hydraulic-fracture geometry.
Introduction
Increasing community and regulatory concern regarding exploration and production of CSG and fracture stimulation has placed extreme constraints on title-holders in New South Wales, to the point of the government rescinding some exploration permits and titleholders nearing a halt to further exploration.
The operator is determined to provide evidence that CSG pilot exploration wells and, in particular, fracture stimulation are not affecting beneficial aquifers or interacting with faults. It is important that the operator be able to provide scientific explanations that are understandable and accessible to the community and assist in regulatory approval processes for the industry.
The primary goals of the project were to assess any fracture-height growth toward aquifers and possible interaction with surrounding faults. In addition, the operator wanted to determine fracture geometry (i.e., length, height, and azimuth), pay-zone coverage, and relative degree of induced-fracture complexity to aid in the optimization of future completions, well placement, drilling strategies, and fracture designs. Hybrid downhole microseismic and microdeformation monitoring was used on the pilot project to provide independent geophysical measurements of fracture-height growth and increase confidence in the results.
Hybridized Downhole Diagnostics
The hybrid receiver array used to map this project is a relatively new technology that uses downhole microdeformation tools (tiltmeters) in conjunction with downhole microseismic geophones. The purpose of combining these two technologies, which complement each other, is to improve assessment of fracture-height growth by determining which microseismic events are likely hydraulically connected and to validate and suggest a more-precise analysis of the measured microseismic events.
Member Societies: Honoring SPE’s Heritage and Fellow SPE Members through AIME, UEF, and AAES Awards
Authors: Baker Kate , Moreau Roland 
Published: October 2017

You may have heard or recall that SPE was originally part of what is now the American Institute of Mining, Metallurgical and Petroleum Engineers (AIME). In 1985, SPE and the other three AIME member societies, the Society for Mining, Metallurgy, and Exploration (SME); The Minerals, Metals, and Materials Society (TMS); and the Association for Iron and Steel Technology (AIST), became separately incorporated from AIME.
AIME, founded in 1871, was one of the first national engineering societies established in the United States. In 1904, AIME and two other engineering societies—the American Society of Mechanical Engineers (ASME) and the American Institute of Electrical Engineers—formed what is now called the United Engineering Foundation (UEF) to advance the engineering arts and sciences for the welfare of humanity. UEF received a gift of $1 million from Andrew Carnegie to build a common headquarters building in New York City and house their joint and sever-al libraries. By 1958, two other engineering societies had joined UEF: the American Society of Civil Engineers (ASCE) and the American Institute of Chemical Engineers (AIChE).
SPE is the largest engineering society among the AIME member societies, but by no means as large as some of the UEF founder societies. For example, the successor organization to the American Institute of Electrical Engineers, IEEE (Institute of Electrical and Electronics Engineers), is the world’s largest technical professional association with roughly 450,000 members.
Both AIME and UEF founder societies have awards for which SPE members are eligible. Some of these are exclusive to SPE and administered by SPE award committees. They are familiar names: the DeGolyer and Lucas awards, and Honorary Membership. Others are available to SPE members as well as those belonging to one of the four AIME member societies. These include the
Charles F. Rand Memorial Gold Medal, honoring distinguished achievement in mining administration, including metallurgy and petroleum
Robert Earll McConnell Award, which recognizes beneficial service to mankind by engineers through significant contributions that advance a nation’s standard of living or replenishes its natural resources
Rossiter W. Raymond Memorial Award, given for the best paper written by a member under age 35
Optimization of Cement Designs for Thermal Stimulated Wells by Means of Placement Techniques, Mechanical Properties Characterization and Well Life Simulations
Authors: Soucy K. S. , Chan D. 
Published: October 2017

Abstract
Long term zonal isolation is critical for Enhanced Oil Recovery (EOR) wells. The paper will present placement techniques along with the use of mechanical properties characterization and modeling software used to optimize the cement design ensuring well life integrity and longevity for thermal EOR wells in particular. Results and supporting data will also be compared to field performance.
The approach taken incorporates slurry design and mechanical properties characterization of typical standard cements compared to modern slurry design. Cement properties and well operating procedures are simulated using software to model potential failure points during well life. Multiple design and model iterations were performed by adjusting mechanical properties required to withstand well life operating procedures. This method was used to develop an optimized cement design. Field operations and placement technique processes were also developed to enhance proper placement and support overall slurry performance.
Data showing typical mechanical properties required to withstand the simulated wellbore stresses over the life of the well will be compared. This will demonstrate that enhanced mechanical properties are necessary. Standard/conventional slurry design data such as Youngs Modulus, Poissons Ratio, Long term expansion data and tensile data is compared and simulated to show how different types of cements may fail or survive under the same imposed wellbore stresses. Interesting findings demonstrated by software model simulations also show that certain properties, like expansion, are critical to the integrity of the cement sheath. Another observation shows that optimized placement techniques designed for large annulus thermal wells can result in the removal of potentially detrimental accelerating additives, which are typically used. This allows for improved slurry design and performance by reducing the potential for corrosion, shrinkage and increased permeability.
Utilizing tools such as complex well integrity software to simulate well operations can be valuable in evaluating your well life performance to develop novel cement blends and placement techniques. It can be used to determine the desired cement performance properties required to maintain long term wellbore isolation and integrity.
Investigation on Casing Damage in Liaohe Du66 Combustion Project
Authors: Zhong L. , Teng L. , Zhang S. , Wu F. , Luo E. , Liu L. , Yu D. , Ji D. , Wang C. , Zhou Y. 
Published: October 2017

Abstract
The dry In-situ combustion test was conducted for multilayer heavy oil reservoir such as Du66 in Liaohe Oilfield since 2005, in consideration of the limited oil recovery of cyclic steam stimulation for such multilayer heavy oil reservoir with more than 10 layers and the thickness ranging from 1m to 15m. There are more than 90 CSS wells converted into air injection wells operated in geometric well pattern in past 10 years. Field well integrity testing result shows that casing damage such as diameter shrinkage, corrosion, and local destroy, are found in about a fifth of the air injection wells. The casing damage has become one of the largest problems in the in-situ combustion project, and remedial well treatments have to be carried out urgently. It will negatively affect the development performance and also indeed a risky operation under high temperature, backfire and even explosive conditions.
In order to effectively prevent the casing damage in air injection process, casing damage in Du 66 project is investigated at first, then performance of field measured temperature and air injection were primarily analyzed combined with numerical simulation of a typical reservoir recovered by an air injection well group. Based on extensive laboratory experiments, temperature and oxidation corrosion on yield strength of different material casing are investigated, furthermore, principles of casing damage in Du66 project are discussed. At last, preventive measures for Du66 combustion project are investigated.
The results show that the causes of casing damage in Du66 project involve reduction of casing intensity because of high temperature and corrosion, and stress variation because of large temperature difference between layers, especially local extra high temperature occurring at layer(s) with low air injectivity where burning in the vicinity of wellbore will keep on for a long time. Consequently, downhole electrical ignition other than chemical ignition and self ignition is recommended for its uniformly heating advantage, and separated-zone combustion in sequence, selective separate zone combustion and air conformance control methods are effective to prevent casing damage of such multilayer reservoir as Du66.
Forage Accumulation and Nutritive Value of Italian Ryegrass–Kura Clover Mixture in Central Europe
Authors: Andrzejewska Jadwiga , Contreras‐Govea Francisco E. , Berzaghi Paolo , Albrecht Kenneth A. 
Published: October 2017

ABSTRACTThe quest to reduce importation of plant protein for livestock feed and to reduce expense and environmental consequences of nitrogen fertilizer use have resulted in renewed interest in forage legumes in EU countries. The objectives of this study were: (i) to assess forage accumulation and nutritive value of mixtures of Italian ryegrass (IRG, Lolium multiflorum Lam.) and kura clover (KC, Trifolium ambiguum M. Bieb.), and (ii) to model milk production potential of this mixture, relative to IRG and KC monocultures in northern Poland. Italian ryegrass and KC were grown in monocultures or intercropped (IRG‐KC mixture) and harvested three times per year in two consecutive years. Italian ryegrass had greatest accumulated forage in harvest 1 and 2, followed by IRG‐KC and the KC monoculture. In harvest 3, IRG‐KC accumulated more forage than KC or IRG. Crude protein, neutral detergent fiber digestibility, and in vitro true digestibility across harvests followed the trend KC > IRG‐KC > IRG. The KC monoculture had the greatest calculated milk per megagram dry matter but the least milk per hectare, whereas IRG monoculture had least milk per megagram dry matter and greatest milk per hectare, with intermediate values for the IRG‐KC mix. Although forage accumulation of the mixture was less than that of nitrogen fertilized IRG, greater crude protein concentration and no nitrogen fertilizer application make it an intriguing opportunity for EU countries striving to reduce feed protein imports and use of fertilizer nitrogen.
New Adaptive Neural Network for Uncertain Nonlinear System with Disturbance
Authors: Pham Thiem V. , Lai Lai K. 
Published: October 2017

An output of RBF neural network depends linearly on the matrix weights, a training is thus a linear optimization problem. However, by adjusting the centers and the widths this type of neural network structure becomes nonlinearly parameterized. In this work, lumped disturbances consisting of both approximation errors and external disturbance are estimated by an adaptive RBF neural network structure combining with a feed-forward correction, in which the feed-forward correction term is calculated by the algebraic equation regarding the parameters of controller and the radial basis function. This estimator (using estimating the lumped disturbance) is also used both in class of SISO nonlinear and MIMO nonlinear system. In addition, an adaptive scheme for the RBF neural network (an output and n outputs) is developed to approximate unknown system functions. On the other side, the performance of closed loop system (settling time, overshoot and the static error) would be improved by using an adaptive law to update the parameters of controller instead of choosing fixed controller's parameters which are coefficients of hurwitz polynomial. Thanks to Lyapunov's theory, asymptotic stability is established with the tracking errors converging to a neighborhood of the origin. Finally, there are two examples, coupled tank liquid system and an active magnetic bearing system, are presented to illustrate the our proposed methods.
An Online Distributed Boundary Detection and Classiﬁcation Algorithm for Mobile Sensor Networks
Authors: Hung Pham Duy , Vinh Tran Quang , Ngo Trung Dung 
Published: October 2017

We present a novel online distributed boundary detection and classiﬁcation algorithm in order to improve accuracy of boundary detection and classiﬁcation for mobile sensor networks. This algorithm is developed by incorporating a boundary detection algorithm and our newly proposed boundary error correction algorithm. It is a fully distributed algorithm based on the geometric approach allowing to remove boundary errors without recursive process and global synchronization. Moreover, the algorithm allows mobile nodes to identify their states corresponding to their positions in network topologies, leading to self-classiﬁcation of interior and exterior boundaries of network topologies. We have demonstrated effectiveness ofthis algorithm in both simulation and real-world experiments and proved that the accuracy of the ratio of correctly identiﬁed nodes over the total number of nodes is 100%.
La modernización temprana en Mérida, Yucatán. Una nueva dualidad urbana
Authors: Peraza Guzmán Marco Tulio 
Published: October 2017

La modernidad temprana en Yucatán, acaecida a mediados del siglo XX, generó un desarrollo importante de Mérida, su ciudad capital, gracias al cambio del modelo de desarrollo que prevaleció durante las décadas precedentes en la región, basado en el antiguo cultivo y procesamiento del henequén. La diversificación de las actividades económicas propiciada por la industrialización del país, a partir del régimen de Miguel Alemán, fomentó en esta ciudad un nuevo concepto de desarrollo basado en el comercio y los servicios de diferente índole que le llevó a impulsar el desarrollo de la zona sureste del país. Las afectaciones que sufrió la ciudad fueron muchas, pero particularmente importante fue el explosivo crecimiento de su periferia y la consolidación de su centro histórico como polo centralizador de la economía urbana. Fenómenos que inauguraron un nuevo modelo de desarrollo que, no obstante de afectar el patrimonio de su centro histórico, también reordenó y potenció los servicios y la infraestructura de su nueva periferia.
Una casa salomónica en Puebla de los Ángeles, México
Authors: Fernández Martha 
Published: October 2017

El artículo aborda la historia de la Casa de las Bóvedas, un edificio barroco construido entre 1684 y 1685 por el arquitecto Diego de la Sierra. Sus soluciones formales, en especial las que se refieren a las columnas y pilastras con estrías móviles vinculas al salomonismo imperante en esa época, han dado lugar a eruditas discusiones en relación con las fuentes teóricas y formales de las que se pudo servir el arquitecto constructor para realizarlas de esa manera. En este artículo se plantea como hipótesis la posibilidad de que sus modelos no hayan sido necesariamente los planteados por teóricos del siglo XVII como fray Juan de Ricci y Guarino Guarini, sino edificaciones medievales románicas y góticas, retomadas en la Nueva España por razones simbólicas, que tienen que ver con la necesitad de reconstruir idealmente el Templo de Salomón.
La salvaguarda de los paisajes histórico-rurales en Italia
Authors: Aguilar Prieto Berenice 
Published: October 2017

Los paisajes histórico-rurales poseen un elevado valor cultural, suma del entorno natural de cada sitio y de aquel modificado por el hombre para su propio beneficio. Su valor radica en el conocimiento popular que subyace en la creación de sus espacios. El resultado armonioso de estos paisajes es producto del conocimiento de los habitantes de los pueblos rurales a partir de los factores ambientales de cada región, el cual conforma la sabiduría de las comunidades del campo, decantada a lo largo del tiempo y plasmada en la idiosincrasia de cada pueblo. Si bien el valor de los paisajes histórico-rurales ha sido reconocido por los organismos internacionales que dedican sus esfuerzos a la salvaguarda del patrimonio, la problemática por la que atraviesan vulnera su persistencia y daña los delicados tejidos social y cultural y sin duda, el equilibrio ambiental. A partir de diferentes tipos de medidas se han obtenido logros en distintas regiones del mundo. Para su ejemplificación se presenta aquí el caso de Italia y se hace una mención del patrimonio paisajístico rural de carácter histórico en México, con la intención de mostrar la problemática y cuáles serían las consecuencias culturales y ambientales de no atenderse ésta, a partir de ciertas medidas que se sugieren.
El delirio de vivir entre los muros del conocimiento. Entrevista con el arquitecto e historiador argentino Ramón Gutiérrez
Authors: San Martín Córdova Ivan 
Published: October 2017

La entrevista recoge el pensamiento teórico, crítico e historiográfico de Ramón Gutiérrez, figura central para comprender y valorar la arquitectura latinoamericana de las últimas décadas. En el texto, se exponen sus opiniones sobre los problemas contemporáneos que aquejan a la arquitectura mexicana y argentina, así como los conceptos teóricos y jurídicos con los que Argentina enfrenta la valoración, rehabilitación y conservación del patrimonio edificado. Finalmente, el historiador argentino hace un agudo análisis sobre la problemática en común de las revistas latinoamericanas, de sus fortalezas y debilidades, por lo cual emite algunas recomendaciones que ayuden a superar los retos que la actualidad plantea.
Indicadores epidemiológicos das intoxicações exógenas em crianças menores de 5 anos na região de Araçatuba-SP
Authors: Ramos Thiago Oliveira , Colli Vilma Clemi 
Published: October 2017

Intoxicação é o processo constituído pelo agregado de sinais e sintomas que retratam a instabilidade orgânica promovida pela ação de substância tóxica. Em todo o mundo, as intoxicações demonstram significativo problema de Saúde Pública. Os acidentes intoxicantes são contínuos e dados sobre as causas prevalentes são fundamentais para as políticas públicas de terapia e prevenção. O objetivo foi descrever as características epidemiológicas dos casos de intoxicações exógenas em crianças menores de 5 anos atendidas em unidades de emergência e notificadas pelo Sistema de Informação de Agravos de Notificação (SINAN – MINISTÉRIO DA SAÚDE) na região de Araçatuba-SP no período janeiro de 2010 a dezembro de 2015. O presente foi exploratório, retrospectivo, descritivo de caráter observacional e realizado a partir de dados colhidos do SINAN - Sistema de Informação de Agravos de Notificação, referente ao Grupo de Vigilância Epidemiológica XI situado no município de Araçatuba – SP no período de 2010 a 2015. Os dados foram avaliados de acordo com as variáveis: idade, gênero, via de exposição, agente tóxico e evolução. Dos casos, 51,7%, corresponderam ao sexo masculino e a idade mais relacionada foi de 1 a 2 anos (34,3%). A via digestiva representou 95,5% das intoxicações e os agentes tóxicos mais envolvidos foram medicamentos (42%). A cura sem sequela correspondeu a 99,6% dos casos. Houve aumento de 300% de casos notificados (2010-2015). Sugere-se a necessidade de proposta de vigilância em saúde, com investigação, monitoração, protocolos clínicos uniformizados, que sirvam de suporte para planejamento de ações emergenciais e preventivas.
A PRODUÇÃO CIENTÍFICA EM EDUCAÇÃO FÍSICA DE 2001 A 2010: CAMINHOS DA CONSTRUÇÃO DE UM CAMPO
Authors: Castro Pedro Henrique Zubcich Caiado de , Silva Alan Camargo , Silva Luis Aureliano Imbiriba , Lüdorf Sílvia Maria Agatti 
Published: October 2017

: Este estudo objetivou compreender a produção de programas de pós-graduação stricto sensu em Educação Física, no período de 2001 a 2010, tendo como pano de fundo as “regras do jogo científico” vigentes no campo. Foram selecionados 1.398 trabalhos, entre dissertações e teses, dos programas de pós-graduação: USP, UNESP, UFRGS, UNICAMP e UGF. A análise dos dados foi realizada a partir dos enfoques temáticos: biodinâmico, sociocultural e pedagógico. Os resultados revelaram a predominância do viés biodinâmico, cuja concentração de estudos reside, principalmente, nos programas da USP, UNESP e UFRGS. Já a temática sociocultural foi identificada com maior incidência na UNICAMP e UGF. O enfoque pedagógico foi encontrado em menor proporção em todos os programas. Uma análise a partir de Pierre Bourdieu apontou que a política da pós-graduação da Área 21, referendada e incentivada pela Capes, e seus impactos no campo têm favorecido essa construção do campo científico da Educação Física.
PENGARUH DISCOVERY LEARNING BERBANTUAN PAKET PROGRAM SIMULASI PHET TERHADAP PRESTASI BELAJAR FISIKA
Authors: Hariyanto Agus 
Published: October 2017

Discovery learning is designed with the aim that students can find their own concepts on what they study and work effectively in a group. The purpose of this study was to determine the effect of discovery learning PhET aided simulation program on learning achievement compare to the discovery learning. The study used a quasi-experiment with 2x 2 factorial design. The technique of data collection began with the test of prior ability of students and at the end of the study they were given physics learning achievement tests. The technique of data analysis using ANOVA test two paths. The results show that the physics achievement of students studying by means of discovery learning with PhET simulation aid was better than those who studied with discovery learning. In conclusion, discovery learning with PhET simulation aid affects positively towards studentsâ€™ learning achievement.Â ABSTRAK:Discovery learning dirancang dengan tujuan agar siswa dapat menemukan sendiri konsep yang dipelajari dan bekerja secara efektif dalam kelompok. Tujuan penelitian ini adalah untuk mengetahui pengaruh discovery learning berbantuan program simulasi PhET terhadap prestasi belajar dibandingkan dengan discovery learning. Penelitian menggunakan quasi experiments dengan desain faktorial 2 x 2. Teknik pengumpulan data kemampuan awal dengan melakukan tes kemampuan awal pada awal penelitian dan pada akhir penelitian diberikan tes prestasi belajar fisika. Teknik analsis data menggunakan uji anava dua jalur. Hasil uji Anava dua jalur menunjukkan bahwa prestasi belajar fisika kelompok siswa yang belajar melalui discovery learning berbantuan paket program simulasi PhET lebih tinggi daripada kelompok siswa yang belajar melalui discovery learning. Dengan demikian, discovery learning berbantuan program simulasi PhET mempengaruhi secara positif prestasi belajar siswa.