bluuebunny/crossref_metadata_2025 huggingface dataset:
Downturn Represents Stress Test for Unconventional Hydraulic Fracture Modeling
Authors: Jacobs Trent
Published: January 2017

Developers of the latest generation of unconventional hydraulic fracturing models are hoping that current weak oil and gas prices will generate newfound interest in their software technology.

After years of rewriting old programs and coming up with new ones, the modelers say they have advanced the industry’s ability to digitally simulate how shale reservoirs react to hydraulic fracturing. If the technology works, they may have overcome the major limitations that have stymied the adoption of fracture modeling since the onset of the North American shale revolution.

Those working on this new front include service company giants such as Schlumberger, which in recent years has built and acquired a number of modeling, simulation, and 3D seismic technologies to capture this budding market. Smaller and much younger startups are also in the hunt, such as Sigma3 and FracGeo, who teamed up in the summer of 2014 to introduce and market new unconventional reservoir models.

Several other players are pushing their own approaches but the concept they all share is that if shale producers can predict what subsurface properties dictate a quality completion, they can land wells in geologically and geomechanically favorable sweet spots and spend their capital on initiating fracture stages only in the most likely-to-produce sections of a well. The technology could also reduce the financial pain incurred through time-consuming, trial-and-error pilot programs used to determine a particular field’s best completion practices.

Ultimately, the technological goal is to lower break-even costs and deliver sustainability to the flagging shale business by engineering wells that produce more oil and gas from fewer wells, with fewer fracturing stages.

“People are struggling to make a profit with the current oil price just by drilling every location,” on a geometric grid, said Colin Sayers, an adviser with Schlumberger who works on the company’s unconventional modeling and seismic technologies. The approach he is pitching is to “put the wells in the right place with the right orientation, and choose where you should complete based on data rather than just guesswork.”
Root-Cause Analysis of Drilling Lost Returns in Injectite Reservoirs
Authors: Carpenter Chris
Published: January 2017

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 174848, “Root-Cause Analysis of Drilling Lost Returns in Injectite Reservoirs,” by Scott Buechler, Jing Ning, Nidheesh Bharadwaj, Kaustubh Kulkarni, Caleb DeValve, Carsten Elsborg, Timothy Head, and Arnout Mols, ExxonMobil, prepared for the 2015 SPE Annual Technical Conference and Exhibition, Houston, 28–30 September. The paper has not been peer reviewed.

The work presented combines a fundamental-physics approach with field data to identify the root cause of drilling failures in Paleocene and Eocene injectite-sand intervals. Study results showed that unfavorably oriented sand/shale interfaces, which can occur more frequently at the top of an injectite reservoir, can reopen at equivalent circulating densities (ECDs) below predicted fracture gradients, but above the minimum stress, and can result in massive losses.

Theoretical Approach and Application

Diagnosing narrow-margin drilling challenges in injectite sands has proved to be extremely difficult because of the convoluted nature of available drilling data, statistically small data sets, and often contradictory “apples-to- apples” comparisons made on the basis of simple metrics. Two mechanisms have seemed probable: (1) suboptimal hole cleaning leading to packoff and subsequent lost returns, or (2) lost returns leading to suboptimal hole cleaning and subsequent packoff.

Wellbore Cleaning. In this work, wellbore cleaning is evaluated with a proprietary transient-hydraulics and –hole-cleaning model. This model is based on first-principle equations of mass and momentum transport for drilling fluid and cuttings along the wellbore in the annular space between the drillpipe and casing (or open hole). The key physical effects during the cuttings-removal process are captured through constitutive models for frictional pressure drop in a circulating mud, heat transfer between the formation and drilling fluid, cuttings deposition/ erosion, and particle/liquid drag force. The partial-differential equations of mud and cuttings transport are discretized along the wellbore, and the entire system of equations is solved simultaneously in an implicit manner for each timestep. With this approach, the efficiency of hole cleaning can be characterized for these wells. Additionally, the effect of both lost returns and breakout can be incorporated into the models.
FLNG: Applying Advanced Technology To Bring More Natural Gas to Market
Authors: Carpenter Chris
Published: January 2017

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper OTC 25907, “FLNG: Applying Advanced Technology To Bring More Natural Gas to Market,” by Alexander Boekhorst, Bruce Steenson, and Harry van der Velde, Shell, prepared for the 2015 Offshore Technology Conference, Houston, 4–7 May. The paper has not been peer reviewed.

The constraints of space and seaworthiness required the designers of Shell’s joint-venture floating-liquefied-natural-gas (FLNG) facility to assemble these technologies in novel configurations. The operator is applying standardization as a philosophy for its FLNG design so that developments can become faster and more cost effective and has also developed an FLNG solution designed for leaner-gas fields that has many similarities to standard FLNG designs. The so-called “FLNG Lean” is able to deliver higher LNG-production capacities.

Introduction

With a long history in the LNG industry, the operator signed an agreement with a consortium of heavy-industry companies to design and build multiple FLNG facilities and entered the front-end engineering design (FEED) development phase, which focused on the technical requirements of the project. The operator’s Prelude project was the world’s first to make a final investment decision on an FLNG facility in May 2011. The Prelude project is expected to produce 3.6 million t/a (mtpa) of LNG, 1.3 mtpa of condensate, and 0.4 mtpa of liquefied petroleum gas (LPG).

Proven Technologies in Innovative Combinations

The operator’s FLNG facility itself is large but is still one-quarter the size of an equivalent facility on land. The key components of an FLNG development include standard gasfield components such as production wells, subsea templates and risers, and the floating facility itself. The facility is a full floating production facility with living quarters; gas- processing, -treatment, and -liquefaction facilities; and product-storage and -offloading facilities. All of these are integrated into a single design. All processing operations are carried out offshore, with LNG, LPG, and condensate product exported directly from the facility.

Once constructed, the FLNG facility will be towed to the field site where it will be moored for the duration of operations— approximately 20 to 25 years— without being disconnected. The FLNG unit has been designed to withstand extreme weather, including a Category 5 cyclone, and will remain on location during all conditions.

The FLNG facility has an internal turret because this configuration is more suitable for fields that require larger and more complex subsea systems and an increased number of risers. Internal turrets are also better suited for harsh metocean conditions. All the subsea connections join the facility by the turret. Production wells on the seabed feed gas and condensate from the reservoirs through a number of flexible risers and a standard fluid-transfer system (swivel stack) into the facility.
Complex Reservoir Architecture Validated by Integrating Well-Testing Outcomes
Authors: Wilson Adam
Published: January 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper IPTC 17986, “Complex Reservoir Architecture Validated by Integrating Well-Testing Outcomes,” by Eleonora Azzarone, SPE, Enzo Beretta, SPE, Sergio Salvadori, and Pietro Bettazzoli, Eni, prepared for the 2014 International Petroleum Technology Conference, Kuala Lumpur, 10–12 December. The paper has not been peer reviewed.

This work presents a real field example in which the integration of well-testing and geological interpretations increased the understanding of a complex, heterogeneous reservoir. An integrated study of both dynamic well-testing data and geological/seismic models was conducted to assess a very complex pressure response obtained from a production test conducted in an offshore oil well. The well-testing objectives were to improve reservoir characterization and to quantify the well productivity in a high-permeability oil-bearing sandstone formation.

Introduction

The target of the production test [drillstem test (DST)] is considered one of the more important reservoirs for the development of a field asset located in ultradeep water. Both the dimensions involved and the average petrophysical properties are expected to sustain quite good production performance.

A dedicated test giving good and reliable interpreted results was considered essential to assess the expectations concerning the reservoir productivity and extent, thus confirming the viability of the development project.

The DST addressed the general main well-testing objectives: the acquisition of representative reservoir-fluid samples (at surface and downhole); the estimation of formation pressure and temperature, average permeability, and well damage; the assessment of well productivity; and the detection of late-time effects (i.e., any presence of heterogeneities or permeability barriers within the radius investigated by the test with respect to the current geological/ seismic environment).

The bottomhole data were acquired by a real-time acquisition system throughout the well testing to achieve an effective balance between the value of information and the optimization of the rig time and costs. The bottomhole-pressure (BHP) and -temperature data were transmitted in acoustic wireless mode through the tubing because no cables are allowed in ultradeep water, for safety reasons.
Controlling Losses When Recompleting Low-Pressure Reservoirs
Authors: Wilson Adam
Published: January 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 174169, “Controlling Losses When Recompleting Low-Pressure Reservoirs,” by G. Uguna, Petroamazonas, and R. Rachid, SPE, A. Milne, SPE, and S. Ali, SPE, Schlumberger, prepared for the 2015 SPE European Formation Damage Conference, Budapest, Hungary, 3–5 June. The paper has not been peer reviewed.

A challenge in many permeable, water-sensitive, subhydrostatic reservoirs is avoiding the loss of completion fluid when completing or working over wells. To overcome the limitation of conventional fluid-loss-control pills, a low-viscosity system was developed. The system is composed of a viscous disproportionate permeability modifier (VDPM) with sized synthetic polymer particles and fibers, which degrade into organic acids. The VDPM reduces the effective permeability to water-based fluids, and the sized particles create an impermeable filter cake. When the particles degrade, the organic acid acts to break any remaining polymer.

Traditional Polymer-Gel Systems

The limitations of many conventional fluid-loss-control pills have resulted in the development of a number of solids-free fluid-loss-control pills. In high- permeability reservoirs, a highly crosslinked gel is needed to achieve good fluid-loss control. Polysaccharides, such as guar, have been widely used for this application because of their low cost and availability. These guar-based fluids are typically crosslinked with borate or organometallic crosslinkers. The viscosity of crosslinked guar decreases significantly at temperatures greater than 200°F because of the limited thermal stability of the polymer. For higher-temperature applications, polyacrylamides can be used to form crosslinked gels.

A limitation of crosslinked polysaccharide and polyacrylamide polymers is that they require an internal or external breaker. The breaker is required to break the crosslinked polymer and lower the viscosity of the fluid so the broken gel can flow out of the formation matrix. Even when using an internal breaker, some polymer remains in the pore spaces, effectively reducing and damaging the permeability of the formation.

To overcome the limitation of residual-polymer damage, hydroxyethylcellulose (HEC) has been used extensively because of its low residual-solids content. However, linear HEC polymer solutions do not form rigid gels but control fluid loss through viscosity and gradual filtration. This means that, as the linear fluid penetrates deeper into the formation, the shear rate decreases and the apparent viscosity increases. Permeability damage has been shown to increase with increasing penetration of viscous fluids, not only with HEC.

Despite all the advances made regarding the design of fluid-loss-control pills, the greatest challenge remains the same, which is to have a fluid that prevents the loss of water-based fluids into the reservoir but does not limit the production of crude out of the reservoir when the well is put on production.
Development of Contactless Sand Production Test Instrument
Authors: Jia Huiqin , Dang Ruirong
Published: January 2017

Background:

Sand production is an important factor affecting reservoir exploitation. Excessive sand production affects the oil well life, causes the damage to the oil recovery device and brings serious hidden danger in the process of safety production.

Objective:

This paper presents a sand content computation model for the crude oil, which uses the power of sand production and Parseval theorem, develops a system to monitor the sand content.

Method:

The main problem of designing the mechanical structure and matching layer for sand sensor is introduced. Furthermore a contactless Doppler ultrasonic method is used to develop sand amount detection system‚ finally the system measurement accuracy is calibrated by the developed calibration system.

Conclusion:

The sand production computation model can describe the relationship between sand monitor output and sand amount; compute the oil sand carrying ratio. The sand sensor is installed on the outside of pipe, not directly contacted with the sand particles. Measurement accuracy of the sand production is higher than the same type instrument.
Senam Hamil Berpengaruh Terhadap Tingkat Kecemasan pada Primigravida Trimester III di RSIA Sakina Idaman Sleman, D. I Yogyakarta
Authors: Aryani Farida
Published: January 2017

The anxieties that suffered by pregnant mother are about pregnancy, labor and the role as the mother. Pregnant women will also be transmitting physical effects to the fetus out his emotions, if concerns increase will affect fetus. Increased chemically and hormone levels generated by these qualm will circulate in the body and penetrate the placenta until the fetus. In the form of a trimester III anxiety pregnant women namely maternity doubt can normally, fear is not able to withstand pain during childbirth, the health of babies after birth, smoothness childbirth, the state of pregnant women after childbirth, childbirth is not appropriate desire, not directly meet baby after childbirth, and that diminished attention from others. Information about the experience of deliveries scary also increased anxiety on pregnant women. Factors that affects anxiety for pregnant women of them are lack of support family, sufficiency financial, stress of the neighborhood, the ability mastery pregnancy, and information about experiences deliveries scary. Complication in pregnancy resulting from burden psychological can be reduced or is eliminated by provide treatment and activity sports during pregnancy. This study to knows the influence of pregnancy exercise in reducing the anxiety on primigravida third trimester. Design of Research is quasi experiment with pretest–post test non equivalent control group design. The amount of sample of research was 56 people with accidental sampling. Analysis of univariabel showed each of variable. Analysis of bivariabel used t-test and regresi of linier to analysis of multivariabel. The approximately of the anxiety for the first group (the group that given the pregnancy exercise) is lower -4.3±3.8 than another group/second group (that group that didn’t given the pregnancy exercise) 0.8±1.2. The result t-test p 0.00001<0.05. Variable of outside that influent toward the anxiety are education and income with value p>0.05.
Use wear analysis of quartzite lithic implements from the Middle Palaeolithic site of Lagoa do Bando (Central Portugal)
Authors: Berruti Gabriele Luigi Francesco , Cura Sara
Published: January 2017

The Middle Palaeolithic site of Lagoa do Bando is an open air site in a lacustrian context located at 570 m a.s.l. in the municipality of Mação in the center of Portugal. The site was discovered in 2011, during an emergency excavation, and resulted on the recovery of a Middle Palaeolithic lithic assemblage mainly composed of fine grained quartzite implements of expedient, discoid and Levallois technology. Use wear analysis was conducted on 41 artifacts formed through discoid and Levallois technology. Twenty one of these artifacts revealed use wear traces. Ten of them show traces of wood work, five have traces of butchering activities, three present traces of meat processing and two present undetermined traces. The site is located at an atypically high elevation for an open air site and there is evidence of a high rate of woodworking activity, rare in the Middle Palaeolithic occupations. The woodworking activities are possibly linked to the exploitation of woody local resources (maybe for the construction of hunting blinds) and not only with to the manufacture and maintenance of spears and shafts. These results converge with the interpretation of this site as a temporary hunting site integrated in a complex pattern of occupation of the area between the river valleys and the top of low mountains.
Technology and function of grooved abraders in the early Neolithic of northwestern Europe
Authors: Hamon Caroline
Published: January 2017

Found sporadically in late Palaeolithic and Mesolithic contexts, grooved abraders are among the most common tools found in Linear Pottery and Villeneuve-Saint-Germain settlements in north-western Europe (5,100-4,700 BCE). This paper presents an overview of the technical and functional characteristics of these tools in early Neolithic domestic contexts. Despite different blank morphologies and sizes, these tools tend to be relatively small in size and are generally not shaped. They are characterized by the use of a very specific raw material: low cohesive and generally ferruginous sandstones, chosen because their abrasiveness is enhanced through use. A classification of the different types of grooves is proposed, based on their shape, depth, section and localization. These characteristics are combined with use-wear analysis in order to propose a number of functional interpretations. Far from the widespread hypothesis that these tools functioned as shaft straighteners, we argue on the basis of the use-wear analysis and archaeological associations of items that these tools were primarily involved in the manufacture of bone and lithic tools, as well as of schist and limestone personal ornaments. They are evidence of the generalization and diversification of polishing and abrading techniques in the technical system of the first Neolithic populations. As such, they contribute to defining a whole new technical paradigm and are an essential element in any definition of the Neolithic.
Grooved stone tools from Calabria region (Italy): Archaeological evidence and research perspectives
Authors: Larocca Felice , Breglia Francesco
Published: January 2017

Since the end of the 19th century the Calabria region in southern Italy has been known for an abundance of grooved stone axes and hammers used during late prehistory. These artefacts are characterized by a wide and often pronounced groove in the middle of the implement, thought to have aided securing the head to a wooden haft. Their widespread presence is known both in prehistoric archaeological literature and in the archaeological collections of various regional and extra-regional museums. At first, scholars did not relate these tools to the rich Calabrian ore deposits and to possible ancient mining activities; they were regarded simply as a variant of ground lithic industry of Neolithic tradition. However, between 1997 and 2012, about 50 tools were discovered in the prehistoric mine of Grotta della Monaca in northern Calabria where there are outcrops of copper and iron ore. This allowed us to recognize their specific mining value and to consider them as a sort of “guide fossil” for the identification of ancient mining districts. This paper presents the results of a study involving over 150 tools from the entire region, effectively demonstrating an almost perfect co-occurrence of grooved axes and hammers with areas rich in mineral resources, especially metalliferous ores.
An experimental approach to ground stone tool manufacture
Authors: Squitieri Andrea , Eitam David
Published: January 2017

The manufacture of ground stone tools has long been a topic of interest for archaeologists. Ground stone tools made of specific stone types (e.g., limestone, basalt, granite) have been investigated with regards to the technology chosen by craftsmen, the manufacturing process, working tools and tool mark analysis. Here, we present the results of an experimental study of the manufacture of a basalt mortar. In particular, the strategy we adopted in designing this study was to present a method for producing a basalt mortar by pecking and abrading with basalt tools. The study was designed and conducted by A. Squitieri and D. Eitam, while the mortar was made by the sculptor D. Yassur. The goals of our experiment were to observe and document the choices made by the sculptor in creating the mortar, starting from the selection of a basalt cobblestone as the raw material, the tools (made from basalt) he used and the ways he used them. We detected practical problems the sculptor had to overcome during the process, the amount of debitage, and the nature of tool marks in the mortar cavity after the manufacturing process. We documented the entirety of the experiment through photographs and videos. Our experimental production using the expertise of a professional sculpture and his thorough knowledge of basalt offers a better understanding of basalt artefact manufacture, the physical properties of the raw material and the interaction between basalt tools and basalt raw material.
Juntas vecinales de El Alto: memórias campesino-sindicais na constituição do protagonismo social
Authors: Câmara Marcelo Argenta
Published: January 2017

Resumo: Este artigo analisa a constituição dos movimentos sociais urbanos na municipalidade de El Alto, na Bolívia, enfatizando os aspectos de re-territorialização das práticas sociais aymarás e mineiras no espaço urbano boliviano. A partir desta análise procura-se destacar a importância de tais movimentos para os processos políticos vividos naquele país ao longo da última década, destacando-se, em especial, os acontecimentos do anode 2003 conhecidos como a Guerra do Gás. O trabalho teve como metodologia a pesquisa participativa e sua construção prioriza os depoimentos obtidos junto aos próprios integrantesdos movimentos analisados. Nas considerações finais destaca-se a importância de uma análiseque abranja as diferentes perspectivas mencionadas aqui para uma compreensão efetiva daação social na Bolívia.Palavras-chave: Aymarás; Bolívia; El Alto; Juntas Vecinales; mineiros; movimentos sociais; urbanização. Abstract: This paper analyzes the formation of urban social movements in themunicipality of El Alto, Bolivia, emphasizing aspects of the re-territorialisation of aymara’sand miner workers’s social practices in Bolivian urban space. This analysis seeks to highlightthe importance of these movements to the political processes experienced in that country overthe past decade, highlighting in particular the events of 2003 known as Guerra do Gás (The Gas War). The methodology is the participatory research and its construction prioritizes thestatements obtained from the very members of the movements analyzed. The conclusions highlight the importance of an analysis covering the different perspectives mentioned here foran effective understanding of social auctioning in Bolivia.Keywords: Aymaras; Bolívia; El Alto; Juntas Vecinales; mine workers; socialmovements; urbanization.
Território, região e fronteira: análise geográfica integrada da fronteira Brasil/Paraguai
Authors: Souza Edson Belo Clemente de , Gemelli Vanderléia
Published: January 2017

O presente artigo busca interpretar a região de fronteira entre Brasil e Paraguai por meio de uma análise geográfica integrada, envolvendo território, região e fronteira. Compreende-se essa fronteira como um espaço com características contrastantes que constituem uma realidade contígua, mas também reticular, que está tanto sob os efeitos de uma dinâmica local como também global. Trata-se de um território dotado de contradições, com espaços que compartilham de alguns problemas e de algumas características em comum ou completamente diversas. Como procedimento metodológico foram utilizados levantamento bibliográfico, trabalho de campo, dados estatísticos do Instituto Brasileiro de Geografia e Estatística (IBGE) e do Dirección General de Estadísticas, Encuestas y Censos (DGEEC), que permitiram, no conjunto, interpretar uma região de territórios transfronteiriços. Palavras-chave: fronteira; Brasil/Paraguai; território; região. Abstract: This article seeks to examine the border between Brazil and Paraguay through an integrated geographical analysis, which involves territory, region and border. This border is understood as an area with contrasting characteristics that constitute a contiguous but also a reticulated reality, which is under the effects of both local and global dynamics. It is a territory endowed with contradictions, with areas that share some problems and characteristics that are similar or completely diverse. Literature review, fieldwork, statistical data from Instituto Brasileiro de Geografia e Estatística – IBGE (Brazilian Institute of Geography and Statistics) and from Dirección General de Estadísticas, Encuestas y Censos – DGEEC (General Directorate of Statistics, Surveys and Censuses of Paraguay) were used as methodology. These procedures allowed to interpret a region of cross-border territories. Keywords: border; Brazil/Paraguay; territory; region.
Cidades médias na Amazônia Oriental: das novas centralidades à fragmentação do território
Authors: Trindade Júnior Saint-Clair Cordeiro da
Published: January 2017

O artigo apresenta elementos da centralidade urbano-regional de cidades médias na Amazônia brasileira e discute o papel desse tipo de cidade em um contexto de reestruturação territorial. Para efeitos de análise considera a diferença conceitual entre “centro” e “centralidade”, assim como entre “fluxos” e “fixos”. As referências empíricas da análise são duas cidades situadas na Amazônia Oriental – Marabá e Santarém. O estudo faz uma abordagem a propósito da importância dessas cidades para a produção do espaço regional e considera elementos históricos da formação territorial da Amazônia brasileira, assim como dados estatísticos e informações documentais sobre essa região e seu processo de urbanização. Ao final é destacado o papel da centralidade política desempenhado pela cidade média na Amazônia em um contexto regional de rearranjo espacial, de emergência de novos interesses regionais e de propostas de divisão política do território. Palavras-chave: cidades médias; Amazônia Oriental; centralidade; divisão territorial. Abstract: This paper presents elements of the urban-regional centrality of middle-size cities in the Brazilian Amazônia and discusses the role of these cities in a context of territorial restructuring. For that analysis it is considered conceptual differences between “center” and “centrality”, as well as between “flux” and “fix” are considered. The empirical references of the analysis are two cities located in the eastern Amazônia – Marabá and Santarém. The study approaches the importance of these cities for the regional production of space and considers historical elements of the territorial formation of Brazilian Amazônia, as well as statistical data and documental information about that region and its urbanization process. The analysis finishes whit the discussion of the role played by middle cities in the Amazon region and its political centrality in a context of spatial re-arrangement, of emergence of new political interests and of political territory division intentions. Keywords: middle-size cities; Eastern Amazon; centrality; territorial division.
Capitalismo globalizado e recursos territoriais: fronteiras da acumulação no Brasil contemporâneo
Authors: Nascimento Humberto Miranda do
Published: January 2017

Capitalismo globalizado e recursos territoriais: fronteiras da acumulação no Brasil contemporâneo A. W. B. Almeida, A. Zhouri, A. A. R. Ioris, C. Brandão, C. Bermann, F. M. Hernández, G. N. Bezerra, H.Acselrad, J. A. Paula, K. Laschefski, M. C. N. Coelho, M. A. Monteiro, L. F. N. Garzon, L. H. Cunha e L.J. Wanderley, Rio de Janeiro: Lamparina, 2010.
Os usos da informação estratégica sobre o território: a empresa de consultoria PricewaterhouseCoopers e o planejamento territorial
Authors: Teixeira Sérgio Henrique de Oliveira , Silva Adriana Maria Bernardes
Published: January 2017

O presente trabalho busca contribuir para a investigação da produção, da circulação e do poder articulador das informações no território brasileiro. Para tanto, partimos da investigação das empresas de consultoria em geral e da empresa de consultoria transnacional PricewaterhouseCoopers em particular. São analisadas a topologia da empresa, a tipologia das informações produzidas e a articulação de seus escritórios com a rede de cidades brasileiras. A estruturação da rede urbana brasileira foi central para a ramificação da empresa no território nacional. Trata-se de uma grande empresa de consultoria com importante participação no processo de reestruturação produtiva das corporações, bem como no processo de planejamento e privatização do território, assim como do aparelho estatal brasileiro na década de 1990. Analisamos, por fim, como esse planejamento foi colocado em contraposição ao planejamento participativo e democrático, voltado à totalidade da sociedade e do território. Palavras-chave: uso do território; círculos de cooperação; PricewaterhouseCoopers; empresas de consultoria; planejamento; privatização. Abstract: This article seeks to contribute to the investigation of the information as the articulating power concerning production and circulation in the Brazilian territory. The consulting companies, and more specifically the transnational PricewaterhouseCoopers are analyzed. The article considers the company’s topology as well as the information typology that it produces and also the link between the PricewaterhouseCoopers’ offices and Brazilian cities network. The structure of such network was an important factor to the company scattering throughout the territory. This company plays an important role in the corporations’ productive restructuring as well as in the territory planning and privatization. It is also relevant the influence it had in the state apparatus in the 1990s. Finally, the article analyzes the opposition between the planning headed by the company and the participatory and democratic planning, which focuses on the entire territory and society. Keywords: used territory; cooperation circles; PricewaterhouseCoopers; consulting companies; planning; privatization.
O planejamento de campi universitários como prática participativa e educativa
Authors: Andrade Carlos Roberto Monteiro de , Pavesi Alessandra
Published: January 2017

Neste trabalho, são discutidas duas experiências de planejamento de campi universitários norte-americanos que tiveram como principal pressuposto a participação ativada comunidade acadêmica: “The Oregon Experiment”, promovido pela Universidade de Oregon na década de 1970, e o projeto do Lewis Center for Environmental Studies no Collegede Oberlin (Ohio), realizado vinte anos depois, em uma década já fortemente marcada pela emergência da questão ambiental. Não obstante as duas experiências tenham se orientado por distintas teorias e princípios de planejamento historicamente situados, no artigo procura-se evidenciar o conteúdo comum a ambas, que remete ao entendimento da participação como práxis e do campus como um laboratório ideal para a sua realização. Palavras-chave: planejamento; campus; participação; educação; sustentabilidade. Abstract: This paper discusses two campus planning experiences carried out in the USA with the active participation of the academic communities: “The Oregon Experiment”, promoted by the University of Oregon in 1970, and the design of the Lewis Center for Environmental Studies at Oberlin College (Ohio), developed twenty years later, in a decade strongly characterized by the rise of environmental concerns. Despite being oriented by different theoretical backgrounds in different moments, the two experiences have common features. The article seeks to highlight these common aspects; the understanding of participation as a praxis and using the campus as an ideal laboratory for its achievement. Keywords: planning; campus; participation; education; sustainability.
À quoi sert la rénovation urbaine?
Authors: Monteiro João Carlos Carvalhaes dos Santos
Published: January 2017

À quoi sert la rénovation urbaine? Jacques Donzelot,Paris: PUF, 2012.
Da fragmentação à articulação: a política nacional de saneamento e seu legado histórico
Authors: Britto Ana Lucia Nogueira de Paiva , Lima Sonaly Cristina Rezende Borges de , Heller Léo , Cordeiro Berenice De Souza
Published: January 2017

O setor de saneamento no Brasil tem sido palco hegemônico de abordagens tecnocêntricas, restringindo visões globalizantes que vislumbrem a multidimensionalidade do tema e a necessidade de articulações intersetoriais. Parte-se da premissa de que essas dificuldades encontram raízes na história do setor, que impõe seu legado por meio da sua inércia e resiliência. Para desenvolver o argumento, é conceituada a multidimensionalidade do saneamento, como área de conhecimento e setor das políticas públicas. Em seguida, analisa-se o processo de construção da política pública de saneamento do período Lula (2003-2010), buscando uma visão histórica de estruturas e instituições, com base nos processos de negociação relacionados a essa política setorial. Analisa-se o Plano Nacional de Saneamento Básico, como oportunidade para um novo patamar da política setorial, a partir da perspectiva da intersetorialidade. O artigo conclui-se com a tentativa de identificar os principais desafios para uma nova política, em que a intersetorialidade seja seu marco referencial. Palavras-chave: saneamento; intersetorialidade; plano nacional; água; esgotos; política pública. Abstract: Hegemonic techno-centric approaches dominate the water and sanitation sector in Brazil, restricting globalizing visions, the understanding of it multidimensionality and the need for intersectoral links. The premise that these difficulties are rooted in the history of the sector, imposing a legacy through inertia and resilience, guides the analysis performed in the article. To develop the argument, we conceptualize the multidimensionality of water and sanitation subject as an area of knowledge and a sector of the public policies. Then, we analyze the policy reform in the Lula period (2003-2010), based on a historical overview of structures and institutions as well as on negotiation processes related to the sector´s policies. We analyze the Plano Nacional de Saneamento Básico (National Plan of Basic Sanitation) as an opportunity for a higher standard of water and sanitation policy, from the perspective of intersectoral articulations. The article concludes with an attempt to identify the main challenges for a new policy, in which intersectoral articulations would be the main framework. Keywords: intersectoral linkages; national plan; water; sanitation; public policy.
Plano de habitação, produção de habitação: as fronteiras de conflito da política pública – considerações a partir do caso da cidade de São Carlos (SP)
Authors: Pulhez Magaly Marques
Published: January 2017

Em um cenário em que o planejamento urbano aparece em destaque nos discursos do Ministério das Cidades como parte importante das políticas setoriais de desenvolvimento urbano, incluindo aí a promoção habitacional, o texto toma por base o desenvolvimento dos Planos Locais de Habitação de Interesse Social – PLHIS e a concomitante implementação de uma produção habitacional de peso, via Programa Minha Casa, Minha Vida – PMCMV. Em uma tentativa de iluminar as variadas camadas de conflito aí sobrepostas, problematizando os agenciamentos regulatórios que se tensionam na medida em que as intervenções públicas no campo habitacional os solicitam, analisa-se a experiência de São Carlos, município do interior paulista. Entre 2009 e 2010 o município pôs em curso a elaboração de seu PLHIS, ao mesmo tempo em que aderiu ao PMCMV, desencadeando, nesse caso, um flagrante descompasso entre as duas iniciativas e seus encaminhamentos – ou seja, entre o papel regulador do plano e sua possibilidade de efetivar-se enquanto tal. Palavras-chave: Plano Local de Habitação de Interesse Social; Programa Minha Casa, Minha Vida; São Carlos; produção habitacional; planejamento urbano. Abstract: In a scenario where urban planning is highlighted in the speeches of the Ministry of Cities as an important part of sectorial policies on urban development – here included the promotion of housing – this text discusses the negotiated rules that are tensioned in the process of public housing interventions based on the development of Local Social Housing Plans (Planos Locais de Habitação de Interesse Social – PLHIS) and the implementation of a strong housing production via Program Minha Casa Minha Vida (PMCMV). In an attempt to illuminate the various layers of conflict there overlapped, we analyze the experience of São Carlos, in the state of São Paulo, where the development of its PLHIS and the adhesion to the Program MCMV started simultaneously between 2009 and 2010. The striking gap between the two initiatives and their referrals – that is, between the regulatory role of the plan and its ability to become effective – are analyzed. Keywords: Local Social Housing Plan; Program Minha Casa, Minha Vida; São Carlos; housing production; urban planning.
Políticas de recuperação de rios urbanos na cidade de São Paulo: possibilidades e desafios
Authors: Silva-Sánchez Solange , Jacobi Pedro R.
Published: January 2017

Este artigo pretende discutir como processos políticos atuantes na cidade de São Paulo criam obstáculos à implantação de políticas de recuperação de rios e córregos urbanos, conferindo especial atenção ao programa de parques lineares. Como uma das diretrizes de seu plano diretor, o município formulou uma política inovadora de recuperação de seus rios e córregos urbanos, com potencial de inaugurar um novo paradigma na gestão dos recursos hídricos na cidade. Entretanto, após quase uma década de sua formulação, essa política ainda parece mais avançada do que a capacidade do poder público para implementá-la. Sua efetividade como política pública urbana e ambiental, visando à construção de uma cidade mais sustentável, depende de um intenso esforço de articulação de ações, desde a promoção e garantia de um debate democrático com os diferentes atores sociais envolvidos, até a implementação de programas intersetoriais, impondo um enorme desafio ao poder público local. Palavras-chave: planejamento urbano; parque linear; município de São Paulo; governança da água; recursos hídricos. Abstract: This paper discusses how political processes taking place in the city of São Paulo become hurdles to the enforcement of public policies designed to restore urban creeks. An innovative policy for restoring urban rivers and creeks, potentially creating a paradigm shift in the management of water resources, originated with the city’s master plan. However, one decade later, the policy remains more advanced than the city’s government implementation capacity. Its effectiveness as an urban and environmental policy towards a more sustainable city depends on joint efforts that represent an enormous challenge to the local political power, requiring promoting and ensuring a democratic debate with participating social actors, as well as the involvement of different municipal departments. Keywords: urban planning; restore urban creeks; city of São Paulo; water resources.
Políticas de renovação urbana no centro histórico de Bogotá, Colômbia (1998-2007)
Authors: Suárez Carlos José
Published: January 2017

A renovação urbana está sendo utilizado como instrumento político privilegiado para a transformação do centro histórico de Bogotá. O marco legal da renovação urbana na cidade foram: o Decreto 880 de 1998, que institucionalizou o Programa de Renovação Urbana, o Decreto 619 de 2000, que definiu o Plano de Ordenamento Territorial para a cidade de Bogotá e o Decreto 492 de 2007 que definiu o Plano Zonal Centro. Neste artigo apresentarei junto com estes documentos as formas como os planos estão ligados com a sensação de insegurança e de degradação dentro da cidade, especialmente pela presença de moradores de rua em uma área específica do centro da cidade: La Calle del Cartucho. A destruição deste local e construção do Parque Terceiro Milênio, assim como os outros futuros planos para a cidade, procuram estimular as parcerias público/privadas e a atração do investimento internacional. Palavras-chave: renovação urbana; vazio urbano; El Cartucho; Parque Terceiro Milênio; Calle del Bronx; cidade saúde. Abstract: The urban renewal is in the present day the most privileged political instrument to transform the historical center of Bogotá. The legal frames of urban renewal in this city were: Decree 880 of 1998 that institutionalized the Urban Renewal Program; Decree619 of 2000 that defined the Territorial Arrangement Plan for Bogotá and, the Decree 492of 2007 that defined the Zonal Center Plan. In this article I’ll present the links among these documents and also the links between them, the security & the sensation of degradation in the downtown. This aversion to few degraded places in the city took its “material form” with the presence of homeless people in a specific area in the center: La Calle del Cartucho. The destruction of this place and the construction of Third Millennium Park seek to encourage the public/private enterprises and to attract international investments, along with another future plans for the city. Keywords: urban renewal; urban emptiness; El Cartucho; Third Millennium Park; Calle del Bronx; health city.
Rede urbana regional, cidades médias e centralidades: estudo de Montes Claros e dos centros emergentes de Pirapora, Janaúba e Januária no Norte de Minas Gerais
Authors: França Iara Soares de , Soares Beatriz Ribeiro
Published: January 2017

Nos últimos anos o Brasil vem passando por profundas transformações em sua configuração urbana. A espacialização e consolidação das atividades desenvolvidas no território nacional materializam-se na rede urbana brasileira. Nesse contexto, deve-se analisar o papel das cidades médias na estrutura urbana, considerando, notadamente, as funções que elas exercem em âmbito regional. Este trabalho investigou os papéis desempenhados pela cidade média de Montes Claros e as interações espaciais e econômicas estabelecidas com os centros emergentes de Janaúba, Januária e Pirapora na rede urbana norte mineira na atualidade. Para a obtenção dos resultados almejados, foram realizados registros iconográficos, confecção de mapas, tabelas e gráficos e entrevistas com a população dos municípios de Januária, Janaúba e Pirapora, no ano de 2010, a fim de compreender as interações espaciais entre as cidades e, com isso, a configuração da rede urbana regional. Palavras-chave: rede urbana; centralidade; fluxos; interações espaciais e econômicas; norte de Minas Gerais. Abstract: In recent years, Brazil has been undergoing profound transformation sin the urban setting. Thus, the Brazilian urban network is materialized through the aspects of consolidation and spatialization of activities developed in the country. The role of medium cities in that urban structure must be considered highlighting the functions they play in national scope. Therefore, this study analyzed the role played by the medium city of Montes Claros and the spatial and economic interactions established with the emerging centers of Janaúba, Januária and Pirapora in the current north of Minas urban network. In order to collect data, Januária, Janaúba and Pirapora populations were interviewed in 2010, in addition to iconographic records, maps, tables and graphs to comprehend the spatial interactions between cities and, thereby, the regional urban network setting. Keywords: urban network; North of Minas; centrality; flow; spatial and economic interactions.
Regional economic development in China
Authors: Silva Robson Dias da
Published: January 2017

Regional economic development in ChinaSaw Swee-Hock e John Wong (Org.), Cingapura: Institute of Southeast Asian Studies e East Asian Institute, 2009.
Do changes in managerial ownership matter?
Authors: Wang Carol , Rowe Wei
Published: January 2017

Agency theory predicts that managerial ownership reduces agency cost and increases firm value. However, empirical evidence on the ownership and firm value relation is, at best, mixed. To date, there is no evidence on how exactly managerial ownership affects firm value and through what channel ownership improves value. Our paper fills in the void in the literature by addressing these issues. As a firm’s operating efficiency is an important indicator of its managerial performance, we uses changes in managerial ownership as an argument to evaluate changes in firm value and hypothesizes that changes in managerial ownership affect firm’s operating efficiency, which in turn drives firm value. Using a large panel data set (4,451 observations for 1,162 firms for year 1990-2001), we find significantly positive relation between changes in managerial ownership, operating efficiency and changes in firm value. Larger increase in managerial ownership provides greater alignment of managerial interests with those of shareholders, hence greater improvement in firm value. However, this relation is not monotonic. The positive impact on firm’s value increases at a decreasing rate. Our simultaneous equation tests remove the endogeneity concern between managerial ownership and firm value.
Behind broad corporate governance aggregates: A first look at single provisions of the German corporate governance code
Authors: Bassen Alexander , Prigge Stefan , Zöllner Christine
Published: January 2017

This study contributes to the emerging research that analyzes the relation between performance and single components of broad corporate governance aggregates, such as governance codes and ratings. Available research is confined to the U.S., Japan, and emerging markets. We enlarge the geographical scope to the German Corporate Governance Code (GCGC). For a sample of 100 large listed German stock corporations, compliance with the GCGC at large is significantly associated only with one of our performance measures (Tobin’s q); this connection is negative. Individual analysis of eleven GCGC recommendations reveals that for three of them, association with all performance measures is insignificant. Four (four) components are significantly positively (negatively) connected with at least one performance measure