bluuebunny/crossref_metadata_2025 huggingface dataset:
Delayed-Release Acid System for Remedial Cleanup of Well Perla-7
Authors: Cedeño Freddy , Deen Larry , Martinez Juan , Rojas Ybrendiz , Martinez Valentina , Plazola Pedro , Segatto Michele , Martinez Ricardo
Published: August 2016

The Perla-7 well experienced lost circulation while drilling the naturally fractured carbonate reservoir. To cure the losses, 285 bbl of various lost-circulation materials (LCMs) were pumped. This plugged the 300-micron slotted liner and resulted in an impairment of production. This paper describes a study of the solids retention by a 300-micron slotted liner and the design, testing, and application of a delayed-release acid system to remediate the plugged well and recover productivity.

The well was closed while spotting the delayed-release acid treatment; gas was filling the well from the previous well testing. Coiled tubing (CT) was used along with a proven fluidic oscillator technology that enables better control when matching fluid rates to the most desirable frequency and amplitude of the pressure pulses. When the pressure began rising from the last recorded surface pressure, the well was bled off on the surface to maintain a balanced condition. After the treatment, the well was opened and cleaned out using well testing equipment, flaring hydrocarbons, and spent acid.

Logistical considerations resulted in the selection of the in-situ acid-release system instead of conventional treatments. The pumped LCMs dissolved successfully, helping to swiftly recover well productivity. The acid-release treatment was split into two stages, with a 30-minute soaking time between the pumping of the two designed engineered pills. A total of 270 bbl of the delayed-release acid were pumped at a 25% volume/volume concentration. No special tanks were necessary for this operation; the acid-release treatment is neutral on surface and is easily handled until required. The well test interpretation was developed based on a pressure buildup period before and after the treatment. The results returned a fairly good reservoir property, with a Kh of approximately 10 000 md-ft with a consistent skin reduction from 14 to four. There was also a corresponding reduction in the drawdown of 120 psia, which was necessary to achieve the same gas rate of 50 million scf/D.

The Perla field is the largest offshore gas reservoir discovered to date in Latin America. The Perla-7 well was drilled in the Cardon IV block, located in the shallow water eastern part of the Gulf of Venezuela. The in-situ acid release treatment is now an alternative option through which to support offshore operations where logistics can be challenging, especially when well remediation is required.
A Technical Approach for Successfully Drilling Unconsolidated Sands in Critical Applications
Authors: Mahrous Ramy , Elshout Nathan
Published: August 2016

During a drilling campaign in the southern North Sea involving installation of two additional conductors inside a mono-tower, significant challenges to the operator were encountered. The mono-tower is a hydrocarbon production platform with six slots. The slots are located inside the foundation pile, extending above sea level, and were driven into the seabed using an impact hammer. Structural integrity of this foundation pile over the platform operating lifetime is paramount.

The basis of the well is its conductor, which is typically installed using the drill/drive method with an impact hammer followed by soil drillout. Offset installation challenges in the mono-tower deemed using the drill/drive method ineffective for this new well. An alternative method for installing conductors is the drill/grout method. However, drilling an open hole increases the possibility of massive washout or hydraulic fracture. The fluids provider designed a water-based mud (WBM) system customized for rapid fluid-loss prevention, thus strengthening the wellbore, maintaining hole integrity, and preventing hydraulic fracture.

In subsea or conventional platform wells, fluids return at the seabed without additional hydrostatic pressure. Because of drilling inside the foundation pile, the lowest achievable elevation for fluid returns is at the top of the foundation pile. Fluid flow into the formation can lead to degradation of the soil-bearing strength around the single foundation pile and adjacent wells. This could potentially lead to subsidence of the mono-tower or buckling of the existing wells. In case of experiencing ever losses a contingency plan was in place with a decision tree used to determine the most appropriate formulation and sequence of lost circulation material (LCM) pills, with setting cement plugs as a last resort. Installing the two additional conductors with that rig could have impaired the structural integrity of the platform foundation pile. The drilling mud design played a vital role in managing this risk.

The uniqueness of the fluid design helped deliver the section without wellbore instability issues, hence avoiding losses or hole collapse, requiring reactive measures. The results demonstrated that wellbore pressure containment and full hole integrity can be achieved when drilling unconsolidated sands.

The novelty of the technical process and fluid design approach acted as a barrier to help prevent losses and proved the theory of wellbore stabilization and strengthening in unconsolidated sands through field applications.

This paper focusses only on discussing the application of an engineered fluid solution through a rigorous technical approach, which contributed to the success during such critical operations.
Mitigating Salt and Sub-Salt Drilling Challenges Using Hybrid Bit Technology in Deepwater, Gulf of Mexico
Authors: Chowdhury Ashabikash Roy , Callais Ryckman , Rothe Mitchell , Anderson Mark , Koons Brian , Bathgate Grant
Published: August 2016

The deepwater Gulf of Mexico (DW GOM) poses a variety of drilling challenges including subsurface challenges related to drilling through salt, such as salt creep, wellbore instability, inclusions, sutures, and tar that add risks to drilling. The sub-salt challenges include drilling through interbedded formation triggering drillstring vibration, hard and abrasive sandstone and pressure transition.

In most exploratory areas where operators are currently active, the water depth is greater than 4,000 ft. As a result, long drill strings are required which increase the likelihood for drilling dynamic issues. Torsional oscillations, lateral vibrations, and whirl pose the risk of bottom hole assembly (BHA) failure, resulting in an unplanned trip. Drilling through interbedded formations of variable hardness often initiates dynamic instability. If not managed, instability shortens the BHA run life and adversely impacts the success of the operation and exposes rig personnel to additional safety risks.

The majority of deepwater drilling applications require the use of an expandable hole opener in the BHA. Drilling through an interbedded formation with an expandable hole opener increases the possibility of the pilot bit and reamer losing synchronization, causing the reamer to overload, which can result in a premature failure and unplanned trip. Alternatively, having an aggressive hole opener in the BHA with an unaggressive pilot bit can result in whirl and the resultant loss of drilling efficiency or eventual failure. Therefore, it is important to use a bit with managed aggressiveness to ensure the bit and reamers remain synchronized.

The use of polycrystalline diamond compact (PDC) bits often aggravates the drilling dynamic instability because of inherent shearing action and resultant downhole torque fluctuations. The instability compromises drilling efficiency and makes it difficult to synchronize the expandable reamer and pilot bit.

In this case study, the operator addressed the challenges of drilling dynamics, expandable reamer and pilot bit matching issues by utilizing a hybrid drill bit in the 18⅛" x 21" hole sections. The hybrid bit, because of its dual-cutting mechanics, addresses drilling dynamics and reamer synchronization challenges through better torque management and controlled aggressiveness.

This paper presents the successful application of a hybrid bit to address drilling challenges and improve efficiency and penetration rates. It also compares the downhole torque produced by PDC and hybrid bits and demonstrates consistent, linear torque response of a hybrid bit for managing aggressiveness.
In-situ Tensile Strength Testing: Awareness of Variations with Testing Environment
Authors: Li Li , Kellum Matthew , Doan Angela
Published: August 2016

Mechanical performance of cement significantly affects cement sheath integrity and long-term zonal isolation, especially in complex high-temperature, high-pressure (HTHP) wells drilled under challenging operational conditions. A majority of cement sheath mechanical failures are believed to occur in tension rather than compression, which has led to increased focus on cement tensile strength. However, most technical literature related to cement tensile strength refers to testing at ambient temperature and pressure, which does not represent actual downhole conditions. In this study, an HTHP tensile strength testing device is used to measure cement tensile strength in situ at simulated downhole conditions, and these data are compared with measurements gathered at ambient conditions.

In this work, class H cement was mixed with mechanical enhancers, an anti-settling agent, and an anti-foaming agent at 16 to 16.4 ppg. Several mechanical enhancers, including polymeric and fiber additives, were investigated. The cement samples were cured inside the HTHP tensiometer at downhole conditions, and the tensile strength was measured in situ at the same curing conditions.

The in-situ tensile strength results were compared with results from the traditionally used uniaxial method at ambient conditions. The difference between the tensile strength tested in situ and at ambient conditions varied depending on the type of mechanical enhancer. For example, a significant increase in in-situ tensile strength was observed for cement with polymeric additives.

This study demonstrates that testing environment significantly affects the measured mechanical properties of cement, and conventional ambient measurements may not accurately reflect downhole performance. It draws attention to industrywide concerns about developing cement systems with mechanical properties optimized for HTHP and other challenging downhole environments.
A Comparative Assessment of Barite SAG Evaluation Methods
Authors: Zeng Wenqiang , Bouguetta Mario
Published: August 2016

Recognizing the potential for, mitigating, or preventing weight material sag plays a critical role in the safety and success of many wellbore configurations. Accessing hydrocarbon reserves in deeper and ever extending reaches presents new challenges of narrower operating windows and hostile environments (higher pressures and temperatures). As a result, drilling fluids for these applications must possess an elevated degree of barite sag minimization. This paper reviews barite sag testing methodologies and discusses their relationship to field applications.

While it has been demonstrated that wellbore conditions, characteristics of the weight material used, and fluid type were all factors affecting settling rates in any given drilling fluid, there are still discussions on what single evaluation method or test might best qualify its potential to sag.

Various barite sag evaluation methods and techniques have been developed, used, and some even recognized as industry standards to assess the potential of weight material settling in drilling fluids. Because of the increasing variety of evaluations methodologies, it is timely to review the relationship between these actual laboratory measurements and field engineering of drilling fluids to recognize the potential for, minimizing, and managing weight material sag.

In this review, synthetic-based drilling fluids engineered to exhibit various types of rheological profiles were tested using a variety of methodologies for dynamic and static weight material settling. Relationships between the composition, rheological properties, and predisposition of the fluids tested to sag were established.

While the data from the tests detailed in this paper suggest clear differentiation between the key properties that most affect static and dynamic settling, the interpretation regarding the selection of a particular testing methodology were more subtle. It was observed that some of the results correlate better with actual wellbore conditions in which either static or dynamic sag would occur than with common drilling fluids engineering best practices. It was also confirmed that sag remains a very complexe phenomenon with a multiplicity of variables making it challenging to indubitably qualify the sag potential with just one single laboratory test.
Deepwater Well Control: Integrated Simulation for Risk Management
Authors: Golding Fritz , Spath John , Newhouse Bob
Published: August 2016

As deepwater drilling leapt into the dynamic positioning (DP) era, many drilling contractors and operators lacked an evidence-based approach for identification of potential process safety and well control failure points. Noble Corporation, a global offshore drilling contractor, (the Company or the Drilling Contractor) has undertaken a journey to scrutinize all critical aspects of deepwater well control operations to ensure a more robust understanding of well issues, operational procedural adequacy, well control intervention practices, and human factors. The Company will present the process and learnings from more than a dozen fully simulated deepwater well control exercises to increase the knowledge base and understanding of the entire industry.

In early 2015, the Company started a program of fully integrated deepwater DP drilling simulation exercises. Utilizing state-of-the-art, immersive simulations with linked software, the Company brings drilling, marine, and engineering crews together with shore based managers from both operator and drilling contractor. Multiday exercises, built on adult learning principles, confront the crews with life-like well control, weather, and equipment failure scenarios that implicate hydrocarbon containment in a deepwater well. All drilling controls are exactly replicated for each vessel, so the drill crew members are in their "native environment," seeing the same drill floor and human-machine interface as at work. Likewise, the DP and power management simulators are the same equipment found on Company vessels. Uniquely, the drilling, DP and power management software is integrated, so that faults on one system impact the others. Beyond the simulations themselves, the simulation center contains all telephone and radio communications and ship-to-shore, enabling the crew to communicate as though they were on the rig; likewise, the shore based rig management and operator drilling engineers participate via telephone. The exercise is facilitated from a high-tech control room with audio, video and instrumentation feeds, and two-way communications. Expert facilitators control events and role play additional players. The lifelike exercises are recorded and a full after-action-review debrief is facilitated with the crews afterwards to identify learnings and opportunities for improvement.

The result of the integrated deepwater DP drilling simulation exercises is a proactive, behavior-based risk management process with the operator and drilling contractor. The exercises return critical learnings and observations in five key areas: Procedural knowledge for critical operations (e.g., well-specific operating guidelines, well control manual, bridging documents)Observed behaviors around well control and loss of position scenariosHuman factors, including team dynamics, relationships, and trustEnhanced situational awareness and crew communicationsFurther training and operational procedure development opportunities
Placing Cement Plugs up to 6,500 ft in Length through the Use of Sacrificial Pipe in Deepwater Environments
Authors: Santiapichi Jorge , Febbraro Anthony , Fuller George A. , Dooply Mohammed , Elhancha Anouar , Martell Ben , Rabei Rob
Published: August 2016

Cement plugs are set for various objectives: to plug back a zone or a well, sidetrack above a fish or initiate directional drilling, protect a low-pressure zone during a workover treatment or solve a lost circulation problem.

It has been demonstrated that more challenges are sometimes found during the design and execution of a cement plug job than that of a primary cementing job, and thus its complexity and criticality of key steps should not be underestimated. Setting of cement plugs in open hole has historically been a challenging and expensive operation when a well is being abandoned.

Current industry habits and practices avoid setting balanced cement plugs over 800 ft. However, advances in cement plug placement procedures, hydraulics modeling and cement slurry testing have notably increased the rate of success of longer plugs, which has encouraged drilling operators to set balanced cement plugs over 1,500 ft.

If the objective is to place a plug over 1,500 ft, multiple cement plugs are typically placed due to concerns of plug quality and getting the workstring stuck while pulling out. The cost associated with such successive operations may represent millions of dollars in a deepwater environment even when the operation is performed with no operational failures.

To minimize the costs, several plug placement methods have been explored by many oil and gas operators to set long cement plugs, with the use of mechanical or hydraulical disconnect tools and sacrificial pipes identified as one of the most feasible options.

This paper reviews the engineering considerations to minimize operational risks and plug placement design challenges when sacrificial pipes are used. Field examples are analyzed in this paper, detailing first an unsuccessful case from which valuable lessons were learned, and successful cases including what is considered as one of the longest openhole plug and abandonment performed in a single job in the industry: a 6,500-ft sacrificial stinger cement plug.
Understanding Cementing Dynamics in Deepwater Dual Gradient Drilling Operations
Authors: Dooply Mohammed , DeBruijn Gunnar , Flamant Nicolas , Elhancha Anouar , Rahman Sharifur , Duan Ming , Koons Brian
Published: August 2016

One of the well construction challenges facing today's deepwater drilling environment is the need for multiple casing strings and drilling liners reaching the reservoir zones at greater depths. This challenges cement placement and fluid displacement for achieving zonal isolation confidence across prospective intervals having narrow pore and fracture pressures margins and higher equivalent circulating densities (ECD).

Dual gradient in this paper refers to one hydrostatic gradient of seawater density that begins at rig floor and a second hydrostatic gradient of mud density that begins at seafloor. Cement placement with dual gradient mode technically follows similar steps and principles as single gradient cementing. However, dual gradient will add a certain complexity to the operations as the result of the following factors: The entire cement placement is on vacuum, i.e. the pumped fluids are continously U-tubing (free falling) due to hydraulic pressure imbalance that exists between the tubing and annulus continuously as such no surface pressure can be observed until the very end of displacement.Darts and plugs shearing indications may not be noticeable through surface pressure signature.Pronounced U-tubing can result in excessive fluid velocity, hence excessive friction and potentially breaking the formation.Downhole anomalies are sometimes only detected from the subsea pump rate and active pit volume changes.

The above considerations must be taken into account under different job configurations and scenarios. Real-time monitoring of job parameters is crucial to understand downhole cement placement and fluid displacement, in order to make quick and informed decisions towards achieving successful cement placement.

A cementing hydraulics simulator is critical to understanding pressures, fluid flow rates and temperature during the cement job. A cementing hydraulics simulator has been developed specifically for dual gradient cementing application. The cementing hydraulics simulator plays a critical role to predict, in addition to cementing hydraulics and temperature, the vacuum length and the subsea pump inlet pressure and rate response throughout cement placement. The simulator can also account for the effect of compressible fluids and internal constrictions on surface and downhole pressures responses.

This paper will briefly explain the dual gradient drilling concept with associated cementing challenges and potential advantages. The cementing hydraulics simulator is capable of computing and displaying dual gradient pressure profile in deepwater environment. This requires understanding U-tubing during pre-job mud circulation and cementing stages, subsea pump inlet pressures and rates responses, Equivalent Circulating Density (ECD) during circulation with different subsea pump inputs setup, optimum circulation rate, bottom-hole pressure and differential pressure at any depth of interest and finally wellbore integrity.
Phosphorus Uptake by Potato from Fertilizers Recovered from Anaerobic Digestion
Authors: Collins Harold P. , Kimura Emi , Frear Craig S. , Kruger Chad E.
Published: August 2016

The rising costs of fertilizers have encouraged the development of technologies to recover nutrients from dairy, cattle, swine, and poultry operations. Field experiments were conducted in the Columbia Basin of Washington to assess the yield of potato (Solanum tuberosumL.) to application of P‐enriched materials recovered from anaerobic digestion of manure. Four rates of P from five sources, three recovered from anaerobic digesters (AD), AD‐dairy P‐enriched fine solids (ADD), AD centrifuged poultry solids (ADP), and AD dairy struvite‐P (ADS) compared to a commercial poultry fertilizer (PBP) were compared to mono‐ammonium phosphate (MAP) and non‐amended control (No‐P). Fertilized treatments had higher yields than the No‐P treatment. Phosphorus source and application rate had significant effects on petiole P concentrations. Increases in petiole P concentrations averaged 300 to 500 mg kg−1tissue with each rate increase for MAP and ADS. Tuber yields among P fertilizers and rates of P application were not significant but were different between years, averaging 2 and 10 Mg ha−1fresh weight higher than the No‐P treatment. Tuber size distribution showed a significant shift from smaller tubers <170 g to the 285+ g tuber classes. The P recovery efficiency averaged 42% among treatments receiving 56 kg P2O5ha−1and declined to 22% for higher rates of ADS, ADD, and MAP. Recoveries were lowest for poultry derived materials, ranging 20 to 30%. The P fertilizer sources evaluated performed similarly when equal rates of P were applied and method of application was comparable.

Phosphorus recovered from anaerobic digesters can effectively substitute for commercial mined P fertilizers.

Potato yields among recovered P fertilizers and rates of P application were not significantly different.

Recovered P fertilizer performed similarly when equal rates were applied and method of application was comparable.
A Half Century of Changes in Soil Taxonomy
Authors: Rabenhorst Martin C.
Published: August 2016

Core Ideas

This is the first comprehensive documentation of changes to Soil Taxonomy.

Changes to the higher taxa in soil taxonomy have been irregular.

Four periods during its development had distinctly different trajectories.

The Seventh Approximation emerged in 1960, and the first edition of Soil Taxonomy was published in 1975. Through the years, as intended in its original architecture, revisions have been made at all levels in the system. This has resulted in the addition of two new orders and a multitude of classes at other categorical levels. Four distinct and contrasting periods can be identified and described with regard to the magnitude of changes in taxa at various levels. The most dramatic changes occurred between the mid‐1980s and publication of the second edition of Soil Taxonomy, when numerous international committees that had been charged with investigating particular taxonomic questions were completing and publishing their final reports and findings. Not surprisingly, most of these revisions resulted in the addition of taxonomic classes, although occasionally (especially in the 1998 Keys to Soil Taxonomy) there were notable reductions in the number of classes within certain orders. This review documents the nature and magnitude of changes that have occurred in the development of the US soil taxonomy during its 54‐yr history to provide a context within which to better understand how the current state of our soil classification system has evolved.
Characteristics of Variations in the Organic Carbon Fractions in Paddy Soils
Authors: Wang Xiyang , Yu Dongsheng , Li Chaofan , Pan Yue , Wang Xiuhong , Pan Jianjun , Shi Xuezheng
Published: August 2016

Core Ideas

We developed a method to predict the SOC fraction concentrations in paddy soil.

Increased slow and resistant SOC contributes to more than 90% of the increase in the SOC pool.

The stability of SOC pool is enhanced in paddy soil of Chendu Plain, China.

The use of three conceptual pools for soil organic carbon (SOC) proposed by the CENTURY model to study soil organic C (SOC) dynamics helps to more clearly understand the mechanism of C sequestration and the stability of SOC pool in farmlands. We studied a typical rice‐growing area, Chengdu Plain in southwestern China. Based on historical soil data collected in the early 1980s, 48 sampling points that include four major types of paddy soils from the surface layer (0–20 cm) and the subsurface layer (20–40 cm) were selected to collect soil samples (n = 96) in 2010. A 100‐d laboratory incubation was conducted to measure the SOC decomposition rates at different times, and data from the incubation experiment were fitted to a three‐pool first‐order model that divided SOC pool into active (Ca), slow (Cs), and resistant (Cr) SOC fractions. Based on these data, a universal predictive method for the concentrations of SOC fractions was developed and used to obtain the 1980s' concentrations of SOC fractions. The results showed that an exponential function model (Dsoct = a ‐ b × ct) can be used as the optimal prediction model for the SOC decomposition process. The Ca, Cs, and Cr concentrations increased in surface and subsurface soils in the study area from 1980 to 2010. The increases of Cs and Cr contributed to more than 90% of the increase in the paddy SOC pool, whereas the contribution of the Ca increase was less than 10%. Thus, the increase in the paddy SOC pool mainly derived from the increases of Cs and Cr.
Will greywater reuse really affect the sewer flow? Experience of a residential complex in Al Ain, UAE
Authors: Chowdhury R. K. , Rajput M. A.
Published: August 2016

Reuse of recycled wastewater is one of the most feasible unconventional urban water sources in the United Arab Emirates (UAE). The extraction and reuse of greywater might affect the water and sewer pipe networks by changing flow characteristics. Therefore, the research question is how much greywater can be reused without affecting the existing water and sewer pipe networks? A residential complex located in Al Ain, UAE, was investigated in this regard. Water pipe network, water consumption and sewer flow data were collected and scenario modelling was conducted using the EPANET software. It was found that 100% capture and reuse of greywater has no impact on the upstream water distribution network, but reduces the recommended design flow in the downstream sewer network. The modelling results show that about 50% of generated greywater (about 95 litres per capita per day) can be harvested without affecting the upstream and downstream water and sewer flow characteristics, respectively.
Optimal control of reservoir release temperature through selective withdrawal intake at hydropower dam
Authors: Zheng Tiegang , Sun Shuangke , Liu Haitao , Xia Qingfu , Zong Quanli
Published: August 2016

This study is motivated by the need to understand the temperature dynamics and warm-water temperature withdrawal. This study also recognizes the need for an environmental assessment of the proposed temperature control schemes at New Fengman Dam. An unsteady three-dimensional (3D) non-hydrostatic model is used in the present study to predict the hydrodynamics and thermal dynamics in the forebay and intakes of the New Fengman Dam. The numerical model is validated using hydrodynamic data collected from a 1:120 entire physical model and 1:30 local model in the present paper. The numerical and experimental results indicate that the Stop Log Gate has no effect on warm-water withdrawal. After dam reconstruction, the reservoir release temperatures can be increased from 4.0 °C to 6.0 °C to improve the habitat of native fishes. The cancellation of the Stop Log Gate program is recommended; the old dam meets the performance objectives for temperature increase.
Modeling light and temperature influence on ammonium removal by Scenedesmus sp. under outdoor conditions
Authors: Ruiz-Martínez Ana , Serralta Joaquin , Seco Aurora , Ferrer Jose
Published: August 2016

The ammonium removal rate of the microalga Scenedesmus sp. was studied under outdoor conditions. Microalgae were grown in a 500 L flat-plate photobioreactor and fed with the effluent of a submerged anaerobic membrane bioreactor. Temperature ranged between 9.5 °C and 32.5 °C and maximum light intensity was 1,860 μmol·m−2·s−1. A maximum specific ammonium removal rate of 3.71 mg NH4+-N·g TSS−1·h−1 was measured (at 22.6 °C and with a light intensity of 1,734 μmol·m−2·s−1). A mathematical model considering the influence of ammonium concentration, light and temperature was validated. The model successfully reproduced the observed values of ammonium removal rate obtained and it is thus presented as a useful tool for plant operation.
Teologia feminista: uma voz que emerge nas margens do discurso teológico hegemônico
Authors: Furlin Neiva
Published: August 2016

Este artigo tem a finalidade de analisar os fatores que contribuíram para a emergência da Teologia Feminista na América Latina, as fases dessa produção e as estratégias que favoreceram a sua consolidação e o reconhecimento no campo acadêmico de hegemonia masculina, para compreender o status dessa Teologia e a sua importância no campo do saber teológico. Em vista disso, buscou-se fundamento nas teorias de gênero, sobretudo nos conceitos de space off e tecnologias de gênero de Tereza de Lauretis. O estudo aponta que a Teologia Feminista é um saber que se cruza e intercruza com os limites e as fronteiras do discurso constituído e hegemônico. É uma outra voz no interior do campo teológico, construída no space-off, num “outro lugar”. É um discurso que, aparentemente ‘invisível’, penetra e questiona as estruturas do pensamento teológico, constituindo-se em uma nova tecnologia de gênero que produz outras subjetividades e valoriza o sujeito mulher na ação evangelizadora da Igreja. Palavras-chave: Teologia Feminista, tecnologia de gênero, subjetividade Abstract The purpose of this article is to provide an analysis of the factors contributing to the emergence of Feminist Theology in Latin America, the stages in its production and the strategies that have favored its consolidation and recognition in an academic field that is hegemonically male, in order to aprehend the status of this theology and its importance within theological knowledge. For these purposes, we have looked to gender theories, and particularly to Teresa de Lauretis’ notions of “space off ” and technologies of gender. Our study reveals that Feminist Theology is a field which crosses and intersects the limits and boundaries of a constituted, hegemonic discourse. It represents another voice within the theological field, built in its “space off ”, that is, emerging “elsewhere”. It represents a discourse that, while apparently “invisible”, penetrates and questions the structures of theological thought, becoming a new technology of gender that produces other subjectivities and values woman as a subject within the evangelizing actions of the Church. Keywords: Feminist Theology, gender technology, subjectivity
Budismo Étnico em Perspectiva Comparada: Herança das Missões Japonesas no Brasil
Authors: Shoji Rafael
Published: August 2016

Após uma contextualização dos fluxos imigratórios entre o Japão e o Brasil, o artigo se concentrará na história e sociologia do Cristianismo entre os nipo-brasileiros. O Catolicismo brasileiro seguiu a tendência de subsistiu o Xintoísmo como religião de pertencimento nacional nas novas gerações nikkei, mas dados recentes sobre as religiões brasileiras no Japão indicam o crescimento do movimento pentecostal entre os decasségui. Seguindo uma perspectiva teórica dada pela economia das religiões e por redes sociais, buscam-se as principais explicações para o crescimento pentecostal. Ao final são apontadas algumas tendências referentes ao futuro do Cristianismo e de outras religiões entre os brasileiros no Japão.
"Casos de família": um olhar sobre o contexto da disputa "Igreja Universal do Reino de Deus x Igreja Mundial do Poder de Deus" nas mídias
Authors: Cunha Magali Do Nascimento
Published: August 2016

A propósito das disputas entre a Igreja Universal do Reino de Deus e a Igreja Mundial do Poder de Deus no primeiro semestre de 2012, o artigo estuda a dimensão do espetáculo e do mercado cultural religioso nas mídias. Por meio de uma pesquisa exploratória dos principais escândalos e embates envolvendo igrejas e líderes religiosos nas mídias nas últimas décadas, o estudo busca (1) localizar o fenômeno da espetacularização da fé como uma estratégia de marketing, como resposta à concorrência, que inclui a visibilidade também por meio de conflitos; (2) indicar caminhos que instigam a novas investigações.
O Budismo como Sistema de Mediação Missionária no contexto asiático dos séculos XVI- -XVII: necessidades, possibilidades e limites hermenêuticos
Authors: Agnolin Adone
Published: August 2016

O contexto missionário asiático da primeira Idade Moderna revelou a evidência de uma perspectiva e, sobretudo, de uma consciência hermenêutica, entendida como “consciência de uma problemática do contexto”: uma reflexão consciente sobre ela tornava-se fundamental para poder enraizar uma obra designificação da mensagem evangelizadora cristã e da sua peculiaridade que sedesprendia, justamente, no interior de contextos e de percursos históricos bastante distintos daquele da civilização ocidental. Esse texto pretende apontar para uma análise comparativa inédita desta problemática para a época, entre o Japão, a China e a Índia, tentando desvendar como, nesse percurso, o Budismo se impôs, necessariamente, enquanto possibilidade privilegiada de mediação missionária, mesmo entre seus próprios limites hermenêuticos.
Elementos religiosos do universitário
Authors: Teófilo Debora Nascimento , Junqueira Sérgio Rogério Azevedo
Published: August 2016

Este texto é parte de um projeto de pesquisa sobre a compreensão religiosa entre estudantes da educação básica e do ensino superior visando estabelecer pressupostos para a construção de um currículo do ensino religioso e a cultura religiosa na perspectiva da diversidade religiosa brasileira. Os resultados aqui apresentados são de 72 estudantes universitários de uma instituição educacional do Paraná das áreas de exatas e sociais aplicadas, na faixa etária entre 18 e 35 anos, fazem parte do projeto piloto para identificação da leitura religiosa deste grupo para progressivamente construirmos eixos e uma estrutura curricular especificamente para a disciplina de cultura religiosa que complementa a formação profissional na graduação em algumas instituições confissionais de ensino superior. Paralelamente está sendo realizada a mesma pesquisa junto a estudantes de uma faixa etária mais nova para subsidiar a discussão no campo do ensino religioso nos diferentes segmentos da educação básica.
A releitura da religio cordis por John Wesley como religião de coração e vida e sua experiência religiosa do dia 24 de maio de 1738
Authors: Renders Helmut
Published: August 2016

Este artigo compara a linguagem da religio cordis favorecida por John Wesley com osseus equivalentes imagéticos e textuais contemporâneos anglo-católicos, puritanos epietistas. Com a paralela rejeição de um dos possíveis acompanhantes da religio cordis, omisticismo, emprega Wesley a linguagem da religio cordis para comunicar entre as classespopulares inglesas uma piedade transformadora capaz de ler criticamente as estruturas davida humana e enfrentá-las com coragem e esperança. Sugere-se que a chamadaexperiência de Aldersgate precisa ser interpretada não em primeiro lugar a partir de um ououtro modelo da religio cordis do passado, mas em sua combinação com a ênfase na graçauniversal e no amor incondicional, que resulta na qualificação do sujeito religioso paraassumir as responsabilidades do seu papel cidadão.
Ciências da Religião e Ensino Religioso: o desafio histórico da formação docente de uma área de conhecimento
Authors: Baptista Paulo Agostinho Nogueira
Published: August 2016

O Ensino Religioso voltou a ser o centro das atenções por ocasião da Audiência Pública do Supremo Tribunal Federal, em junho de 2015, sobre a constitucionalidade do Art. 33 da Lei 9.394/96 e do Art. 11 do Decreto N. 7.107/10. Retomou-se importante discussão sobre esse ensino na escola pública e a questão da laicidade, colocando à mostra os problemas e desafios dessa disciplina. É nesse contexto que se produz este artigo, com o objetivo de refletir sobre a formação docente para a disciplina Ensino Religioso e sua relação com as Ciências da Religião. Parte-se de elementos da história das Ciências da Religião no Brasil, de dados sobre a pesquisa nessa área e sobre o Ensino Religioso, e busca-se discutir horizontes, perspectivas e espaços acadêmicos para essa formação docente. Destaca-se a experiência pioneira da Universidade Federal de Juiz de Fora – UFJF, com o colegiado e o departamento criados no final dos anos de 1960 e início dos anos de 1970, e a criação do primeiro curso de graduação dessa área, com vestibular em 1976. Por injunções internas da universidade, mas principalmente da liderança católica local, o curso teve seu fechamento, só retornando em 2011, sendo o segundo Curso de graduação de Ciências da Religião, depois do da Universidade Federal da Paraíba – UFPB, reconhecido pelo MEC/INEP. Além desses dados históricos, inclusive sobre a pós-graduação, suas linhas e grupos de pesquisa, busca-se refletir, principalmente, sobre o locus das Ciências da Religião para a formação do docente de Ensino Religioso, suas vantagens e limitações.
Estado Islâmico: muito além do “grande terror”
Authors: Apolloni Rodrigo Wolff
Published: August 2016

Entrevista com Frank Usarski, PUC-SP
GANTKE, Wolfgang; SERIKOV Vladislav (Orgs.): Das Heilige als Problem der gegenwärtigen Religionswissenschaft
Authors: Usarski Frank
Published: August 2016

Resenha de GANTKE, Wolfgang; SERIKOV Vladislav (Orgs.): Das Heilige als Problem der gegenwärtigen Religionswissenschaft
Irmão de idioma e esperanças
Authors: Queiruga Andrés Torres
Published: August 2016

Irmão de idioma e esperanças. Así me definiu Afonso, en 1995, ao comezo da nosa relación, no seu prólogo ao meu libro sobre a revelación e así o repetiu, ao final (2015), no libro-homenaxe. Agradecido e saudoso, tralo seu temperán pasamento —“temprano alzó la muerte el vuelo”— así o defino tamén eu a el.Irmáns na raíz común do idioma, irmáns nas grandes esperanzas, irmáns na busca teolóxica. Tal foi –e continúa ser— o núcleo íntimo do noso encontro. Por iso este artigo quere ser ante todo recordo entrañábel e homenaxe de amizade. E, de paso,breve evocación da criatividade, finura e actualidade da súa teoloxía.
O que aprendi com o professor Afonso
Authors: Galdino Rosana
Published: August 2016

Tive o imenso prazer de conhecer prof. Afonso Soares na Faculdade no último ano do cursode Secretariado Executivo Trilíngue, quando já nos últimos fôlegos não acreditavamais que pudesse sentir algum encantamento por qualquer assunto, tampoucopela disciplina Introdução ao Pensamento Teológico (IPT). No entanto, a partirdo momento que aquele moço gentil e sereno entrou na sala, mudou não somenteo meu conceito de Teologia, mas de uma vida inteira.
Acoustic Transmitters Impact Rainbow Trout Growth in a Competitive Environment
Authors: Urbaniak Tanner J. , Barnes Michael E. , Davis Jacob L.
Published: August 2016

Fish implanted with acoustic transmitters are assumed to behave and grow after stocking similar to untagged fish. In this study, three groups (tagged, sham, and control) of rainbow trout Oncorhynchus mykiss [mean (SD) initial length = 277 (24) mm] range were maintained together in three raceways for 90 days, with each raceway containing 10 tagged, 10 sham, and 10 control fish. The fish in the tagged group were anesthetized and had an inert transmitter inserted via a ventral incision. Fish in the sham group were anesthetized and had an incision without transmitter implantation, while the control group was anesthetized only. In each raceway, trout with the inert transmitters were significantly lighter and shorter than fish from the other two groups at the end of the experiment. However, the reduction in weight, length, and specific growth rate occurred primarily during the first 38 days post-tagging, with tagged fish growing at similar rates to the other two groups for the final 52 days of the experiment. Mortality data indicated a survival threshold of 280 mm length in the tagged fish, with 100% survival of the Rainbow Trout greater than 280 mm and only 59.1% survival of trout less than 280 mm. Based on the results of this study, rainbow trout implanted with 9 x 24 mm, 3.6 g acoustic transmitters should be held prior to release for a minimum of 38 days to ensure similar growth rates as untagged conspecifics, and only trout with an initial length greater than 280 mm should be used to maximize survival.
High Density Lipoprotein Cholesterol and the Risk of All-Cause Mortality among U.S. Veterans
Authors: Bowe Benjamin , Xie Yan , Xian Hong , Balasubramanian Sumitra , Zayed Mohamed A. , Al-Aly Ziyad
Published: August 2016

Background and objectives

The relationship between HDL cholesterol and all-cause mortality in patients with kidney disease is not clear. We sought to characterize the relationship of HDL cholesterol and risk of death and examine the association by eGFR levels.

Design, setting, participants, & measurements

We built a cohort of 1,764,986 men who were United States veterans with at least one eGFR between October of 2003 and September of 2004 and followed them until September of 2013 or death.

Results

Patients with low HDL cholesterol and low eGFR had a higher burden of comorbid illnesses. Over a median of 9.1 years (interquartile range, 7.7–9.4 years), 26,247 (40.1%), 109,222 (32.3%), 152,625 (29.2%), 113,785 (28.5%), and 139,803 (31.8%) participants with HDL cholesterol ≤25, >25 to <34, ≥34 to ≤42, >42 to <50, and ≥50 mg/dl died. In adjusted survival models, compared with the referent group of patients with low HDL cholesterol (≤25 mg/dl), intermediate HDL cholesterol levels (>25 to <34, ≥34 to ≤42, and >42 to <50 mg/dl) were associated with lower risk of death across all levels of eGFR. The lower risk was partially abrogated in those with high HDL cholesterol (≥50 mg/dl), and the risk of death was similar to the referent category among those with eGFR<30 or ≥90 ml/min per 1.73 m2. Analysis by HDL cholesterol deciles and spline analyses suggest that the relationship between HDL cholesterol and death follows a U-shaped curve. There was a significant interaction between eGFR and HDL cholesterol in that lower eGFR attenuated the salutary association of HDL cholesterol and risk of death (P for interaction <0.01). Presence of coronary artery disease attenuated the lower risk of high HDL cholesterol and all-cause mortality in those with eGFR≥60 ml/min per 1.73 m2 (P for interaction <0.05).

Conclusions

Our results show a U-shaped relationship between HDL cholesterol and risk of all-cause mortality across all eGFR categories. The risk is modified by eGFR and cardiovascular disease.
Chronic Kidney Disease and Risk for Gastrointestinal Bleeding in the Community: The Atherosclerosis Risk in Communities (ARIC) Study
Authors: Ishigami Junichi , Grams Morgan E. , Naik Rakhi P. , Coresh Josef , Matsushita Kunihiro
Published: August 2016

Background and objectives

Patients on dialysis are known to have higher risk for gastrointestinal (GI) bleeding. However, data on mild to moderate CKD, particularly elevated albuminuria, are limited.

Design, setting, participants, & measurements

Among 11,088 participants in the Atherosclerosis Risk in Communities (ARIC) Study, we investigated the association of eGFR and urinary albumin-to-creatinine ratio (ACR) with risk for hospitalization with GI bleeding. Kidney measures were assessed at visit four (1996–1998), and follow-up was continued through 2011.

Results

During a median follow-up of 13.9 years, 686 first incident hospitalizations with GI bleeding were observed (incidence rate, 4.9 per 1000 person-years [95% confidence interval (95% CI), 4.5 to 5.3]). Multivariable Cox proportional hazards models revealed that both lower eGFR and higher ACR were associated with higher risk for GI bleeding. With eGFR≥90 ml/min per 1.73 m2 as a reference, risk for GI bleeding was significant in moderately decreased eGFR of 30–59 ml/min per 1.73 m2 (hazard ratio [HR], 1.51; 95% CI, 1.13 to 2.02), and was highest in severely decreased eGFR<30 ml/min per 1.73 m2 (HR, 7.06; 95% CI, 3.91 to 12.76). Compared with ACR<10 mg/g, risk for GI bleeding became significantly higher in mild albuminuria with ACR 10–29 mg/g (HR, 1.36; 95% CI, 1.08 to 1.69), and was nearly double in moderate and severe albuminuria (HR, 2.13; 95% CI, 1.66 to 2.71 for ACR 30–299 mg/g, and HR, 2.07; 95% CI, 1.33 to 3.22 for ACR≥300 mg/g). These results were largely consistent in demographic and clinical subgroups and independent of incident cardiovascular events or dialysis during follow-up.

Conclusions

Individuals with even mild to moderate CKD warrant clinical attention regarding the risk of hospitalization with GI bleeding.