bluuebunny/crossref_metadata_2025_split huggingface dataset:
GESTÃO DA PRODUÇÃO COMO FATOR CONDICIONANTE DA COMPETITIVIDADE DO CAFÉ NO CERRADO MINEIRO
Authors: Ospina-Patino Marco , Paseto Luisa Amélia 
Published: June 2021

GESTÃO DA PRODUÇÃO COMO FATOR CONDICIONANTE DA COMPETITIVIDADE DO CAFÉ NO CERRADO MINEIRO

LUÍSA PASETO1, MARCO TÚLIO OSPINA PATINO2

1Doutora em Sistemas de Gestão para o desenvolvimento Sustentável - NIEAR – Núcleo Interno de Engenharia e Administração Rural, FEAGRI-UNICAMP, Rua Mayrink, 154, Sousas, 13104-130, Campinas, SP, Brasil. e-mail: lu.paseto@uol.com.br.
2 Prof. Doutor – Orientador - Faculdade de Engenharia Agrícola - FEAGRI-UNICAMP, Rua Mayrink, 154, Sousas, 13104-130, Campinas, SP, Brasil. e-mail: marco.ospina@feagri.unicamp.br.

RESUMO: O conhecimento de boas práticas agrícolas para inovação e uso de tecnologia na gestão da produção de café permite avançar no posicionamento competitivo das empresas. Este estudo envolveu propriedades rurais do cerrado mineiro com sistemas de produção convencional e buscou evidenciar as oportunidades para melhoria da competitividade na produção de café. Para tanto, a revisão de literatura abordou temas que incluem o conhecimento como fator de produção com valor agregado, inovação, uso de tecnologia e empreendedorismo. Os gestores de quatro propriedades produtoras de café em grande escala foram entrevistados utilizando um questionário composto de 51 questões que refletem a gestão da produção desses produtores. Os resultados indicam que a gestão da produção nas fazendas investigadas apresenta iniciativas que auxiliam na promoção da inovação e tecnologia na produção, porém ainda precisam adotar práticas de aperfeiçoamento do capital social, representado na preocupação com treinamentos e colheita seletiva que levem ao aproveitamento da oportunidade de venda da produção com valor agregado.

Palavras-chaves: Capital Social, Conhecimento, Gestão, Produção.

PRODUCTION MANAGEMENT AS CONDITIONING FACTOR OF COMPETITIVENESS OF COFFEE IN THE MINAS GERAIS CERRADO

ABSTRACT: Knowledge of good agricultural practices for innovation and use of technology in the management of coffee production allows us to advance in the competitive positioning of companies. This study involved rural properties of the Cerrado of Minas Gerais with conventional production systems and sought to highlight the opportunities to improve competitiveness in the coffee production. A literature review addressed topics that include knowledge as a factor of production with added value, innovation, use of technology and entrepreneurship. The managers of four large-scale coffee producing properties were interviewed using a questionnaire composed of 51 questions that reflect the production management of these producers. The results indicate that the management of production in the farms investigated presents initiatives that help in the promotion of innovation and technology in the production, but still need to adopt practices of improvement of social capital represented in the concern with training and selective harvest that lead to the use of the opportunity to sell of value-added production.

Keywords: Social Capital, Knowledge, Management, Production
[Errata] Efeito do pré-condicionamento isquêmico remoto no consumo máximo de oxigênio e potência máxima em corredores e ciclistas: revisão sistemática e metanálise
Authors: Oliveira Francisco Tiago , Freitas Marcos Eduardo , Almeida Celso Nascimento , Santana Robson Santos , Queiroz Ciro Oliveira , Costa Dias Cristiane Maria Carvalho 
Published: June 2021

INTRODUÇÃO: O pré-condicionamento isquêmico remoto (PCIR) é uma intervenção cardioprotetora não invasiva que atenua a lesão celular sofrida por uma isquemia prolongada. Seus efeitos de proteção sobre o coração, quando aplicado ao esporte, pode melhorar o desempenho do exercício. OBJETIVO: Investigar o efeito do pré-condicionamento isquêmico remoto no consumo máximo de oxigênio (VO2máx) e potência máxima (Wmáx) em corredores e ciclistas. METODOLOGIA: Revisão sistemática e metanálise, com ensaios clínicos randomizados. Baseado no PRISMA e avaliado pelo repositório de projetos de revisões sistemática PROSPERO; entretanto, não obteve o registro por se tratar de um desfecho de performance esportiva. As buscas foram realizadas nas bases de dados Medline/PubMed, SciELO, Periódicos CAPES. A seleção dos estudos foi realizada em duas etapas: leitura do título e resumo, e leitura completa dos artigos. A extração dos dados foi realizada pela transcrição das informações. A qualidade metodológica foi avaliada pela escala risco de viés através da ferramenta Cochrane. Excluíram-se estudos que investigaram variáveis diferentes dos desfechos selecionados para esta revisão. RESULTADOS: Foram incluídos oito ensaios clínicos. Verificou-se que nos itens geração de sequência aleatória, ocultação de alocação e cegamento de avaliadores de desfecho em quase todos os estudos tiveram alto risco de viés. Os resultados da metanálise não mostraram diferenças significativas no VO2máx e Wmáx. CONCLUSÃO: O pré-condicionamento isquêmico remoto não se mostrou eficaz para aumentar o VO2máx e a Wmáx em corredores e ciclistas.
Decision process and preferences over risk under the “endogenous decision rule”: results from a group experiment
Authors: Morone Andrea , Nuzzo Simone , Temerario Tiziana 
Published: June 2021

Recent literature on individual vs. group decision-making, in risky contexts, has brought about divergent results, mainly depending on the institutional rules through which groups take decisions. Some studies where group decisions relied on majority rule showed no appreciable difference between individuals and groups’ preferences, others where unanimity among group members was required found collective decisions to be less risk-averse than individual ones. We elicited groups’ preferences over risk using what we defined “endogenous-decision-rule”, i.e. leaving groups free to endogenously solve the potential disagreement among their members. Our results unambiguously show that individuals are more risk seeker than groups when facing gambles with positive expected payoff difference and more risk-averse in the opposite case.
Educational Relationship in the Context of Karol Wojtyła’s Moral Teaching about the Human Act
Authors: Jeziorański Marek 
Published: June 2021

Relacja wychowawcza w świetle nauczania moralnego Karola Wojtyły o akcie człowieka
Artykuł podejmuje problematykę rozumienia relacji wychowawczej z perspektywy moralnej nauki K. Wojtyły o akcie człowieka. Składa się z trzech części. W pierwszej przedstawiono interpretację relacji wychowawczej, stanowiącą przedmiot materialny artykułu. Druga część operacjonalizuje problematykę nauczania moralnego o akcie człowieka w rozumieniu Wojtyły, stanowiącą przedmiot formalny artykułu. Ostatnia część przedstawia warunki relacji wychowawczej przedstawionej w nowym kontekście teoretycznym. Wśród najważniejszych wniosków znalazł się fakt, że podstawowym warunkiem tak interpretowanej relacji między wychowawcą a uczniem musi być istnienie tzw. momentu przyczynowego, czyli wolnego i świadomego zaangażowania wychowawcy w proces wychowania.
Presentación
Authors: De Flachs María Cristina Vera 
Published: June 2021

Los movimientos estudiantiles no son manifestaciones nuevas o modernas sino han existido desde la fundación misma de las universidades. Sin embargo, su estudio no concitó la atención que se merecía dentro de la historiografía universitaria hasta hace relativamente poco tiempo, quizás porque esos “actoresflotantes”, como los denomina Bourdieu, no eran considerados importantes.Cada movimiento estudiantil tuvo sus particularidades según la época histórica en que se produjo su entorno geográfico o la situación política imperante, aunque a veces, dadas sus características comunes se pueden agrupar.Por lo antedicho es interesante destacar la importancia que tiene este número de la Revista dedicado a analizar distintos procesos de luchas estudiantiles en Latinoamérica.
Low Well Cost: Effective Cost Optimisation for Marginal Green Field Development Using Fit-for-Purpose Well Design
Authors: Thamilyanan Thivyashini , Bakar Hasmizah , Zawawi Irzee , Mohd Hatta Siti Aishah 
Published: June 2021

Abstract
During the low oil price era, the ability to deliver a small business investment yet high monetary gains was the epitome of success. A marginal field with its recent success of appraisal drilling which tested 3000bopd will add monetary value if it is commercialized as early as possible. However, given its marginal Stock Tank Oil Initially in Place (STOIIP), the plan to develop this field become a real challenge to the team to find a fit-for-purpose investment to maximize the project value. Luxuries such as sand control, artificial lift and frequent well intervention need to be considered for the most cost-effective measures throughout the life of field ‘Xion’.
During field development study, several development strategies were proposed to overcome the given challenges such as uncertainty of reservoir connectivity, no gas lift supply, limited footprint to cater surface equipment and potential sand production. Oriented perforation, Insitu Gas Lift (IGL), Pressure Downhole Gauge (PDG), Critical Drawdown Pressure (CDP) monitoring is among the approaches used to manage the field challenges will be discussed in this paper. Since there are only two wells required to develop this field, a minimum intervention well is the best option to improve the project economics.
This paper will discuss the method chosen to optimize the well and completion strategy cost so that it can overcome the challenges mentioned above in the most cost-effective approach. Artificial lift will utilize the shallower gas reservoirs through IGL in comparison to conventional gas lift. Sand Production monitoring will utilize the PDG by monitoring the CDP. The perforation strategy will employ the oriented perforation to reduce the sand free drawdown limit compare to the full perforation strategy. The strategy to monitor production through PDG will also reduce the number of interventions to acquire pressure data in establishing reservoir connectivity for the second phase development through secondary recovery and reservoir pressure maintenance plan.
This paper will also explain the innovative approaches adopted for this early monetization and fast track project which is only completed within 4 months. This paper will give merit to petroleum engineers and well completion engineers involved in the development of marginal fields.
First MPD Project in Myanmar Successfully Completed on Deepwater Exploration Well
Authors: Dalgit Singh Harpreet Kaur , Ta Quoc Bao , Benny Benny , Ho Ching Shearn 
Published: June 2021

Abstract
With the many challenges associated with Deepwater Drilling, Managed Pressure Drilling has proven to be a very useful tool to mitigate many hurdles. Client approached Managed Pressure Drilling technology to drill Myanmar's first MPD well on a Deepwater exploration well. The well was drilled with a Below Tension Ring-Slim Rotating Control Device (BTR-S RCD) and Automated MPD Choke System installed on semi-submersible rig, Noble Clyde Boudreaux (NCB). The paper will detail MPD objectives, application and well challenges, in conjunction with pore pressure prediction to manage the bottom hole pressure to drill to well total depth safely and efficiently.
This exploration well was drilled from a water depth of 590m from a Semisubmersible rig required MPD application for its exploratory drilling due to uncertainties of drilling window which contained a sharp pressure ramp, with a history of well bore ballooning there was high potential to encounter gas in the riser. The Deepwater MPD package integrated with the rig system, offered a safer approach to overcome the challenges by enhanced influx monitoring and applying surface back pressure (SBP) to adjust bottom hole pressures as required. Additionally, modified pore pressure hunting method was incorporated to the drilling operation to allow more accurate pore pressure prediction, which was then applied to determine the required SBP in order to maintain the desired minimum overbalance while drilling ahead.
The closed loop MPD circulating system allowed to divert returns from the well, through MPD flow spool into MPD distribution manifold and MPD automated choke manifold system to the shakers and rig mud gas separator (MGS). The automated MPD system allows control and adjustments of surface back pressure to control bottom hole pressure. MPD technology was applied with minimal overbalance on drilling and connections while monitoring on background gases. A refined pore pressure hunting method was introduced with manipulation of applied surface back pressure to define this exploration well pore pressure and drilling window. The applied MPD Deepwater technique proved for cost efficiency and rig days to allow two deeper casing setting depths and eliminating requirement to run contingency liners.
MPD system and equipment is proving to be a requirement for Deepwater drilling for optimizing drilling efficiency. This paper will also capture detailed lesson learned from the operations as part of continuous learning for improvement on Deepwater MPD drilling.
Multi Well Analysis Data Processing for Event Analysis and Mitigation
Authors: Laurent Vallet , Pavel Gutarov , Bertrand Chevallier , Julien Converset , Graeme Paterson , Antoine Vaslin 
Published: June 2021

Abstract
In the current economic environment, delivering wells on time and on budget is paramount. Well construction is a significant cost of any field development and it is more important than ever to minimize these costs and to avoid unnecessary lost time and non-productive time. Invisible lost time and non-productive time can represent as much as 40% of the cost of well construction and can lead to more severe issues such as delaying first oil, losing the well or environmental impact. There has been much work developing systems to optimize well construction, but the industry still fails to routinely detect and avoid problematic events such as stuck pipe, kicks, losses and washouts.
Standardizing drilling practice can help also to improve the efficiency, this practice has shown a 30% cost reduction through repetitive and systematic practices, automation becomes the key process to realize it and Machine Learning introduced by new technologies is the key to achieve it.
Drilling data analysis is key to understanding reasons for bad performances and detecting at an early stage potential downhole events. It can be done efficiently to provide to the user tools to look at the well construction process in its whole instead of looking at the last few hours as it is done at the rig site. In order to analyze the drilling data, it is necessary to have access to reliable data in Real-Time to compare with a data model considering the context (BHA, fluids, well geometry). Well planning, including multi-well offset analysis of risks, drilling processes and geology enables a user to look at the full well construction process and define levels of automation.
This paper applies machine learning to a post multi-well analysis of a deepwater field development known for its drilling challenges. Minimizing the human input through automation allowed us to compare offset wells and to define the root cause for non-productive time. In our case study an increase of the pressure while drilling should have led to immediate mitigation measures to avoid a wiper trip.
This paper presents techniques used to systematize surface data analysis and a workflow to identify at an early stage a near pack off which was spotted in an automatic way. The application of this process during operations could have achieved a 10%-time reduction of the section 12 ¼’’.
A Novel Approach of Dynamic Parameter Calculation in Real Time While Managed Pressure Cementing and its application in Ultra-Deep Well
Authors: Zhou Haobo , Wang Guo , Liu Jinge , Sun Lianzhong , Zhang Hongning 
Published: June 2021

Abstract
Tremendous amounts of oil and gas reservoir are located in ultra-deep formations, such as Shunnan block in Tarim basin of China, some reservoirs buried deeper than 8000m and which are major exploration areas of SINOPEC. The formation geological conditions are complicated, multiple pressure systems co-exist in the same borehole, narrow pressure-margin problems, all above may cause down-hole troublesome conditions while cementing, such as leaking, fracturing formations and so on. And the managed pressure cementing (MPC) was selected for solving the above problems. But the key for a successful MPC depend on accurate, real-time knowledge of dynamic parameters calculation. Therefore, a real time dynamic parameters calculation for MPC is very important.
Firstly, a comprehensive real-time hydraulic calculation method for cementing replacement process was established, in which the difference of density, rheological properties, location and length of different fluids were taken into account. In order to improve the calculation precision, the flow channel both in pipe and annuli was divided into several sections, through which the different diameters of the channels were considered. Secondly, according to the density contrast of operating fluids, a vacuum (U-Tube effect) will appear at the inlet in the cementing replacement process, an integrated U-Tube effect analytical model was established based on the Euler equation, in which the influence of well deviation was taken into account too, and though which the height and volume of vacuum, the down-hole operating fluids acceleration, the out flow rate variation et al. all can be accurately calculated and simulated. Moreover, a series of system calculation software were developed to predict cementing fluids position, fluids acceleration, flow pressure drop, BHP, expected WHP and the related control parameters for MPC.
The proposed model has been applied in HPHT ultra-deep well MPC operation of SINOPEC Northwest oil filed in Traim basin, there is an excellent match between the calculated and measured data. Furthermore, this simulation software has been used for designing the MPC parameters, and it runs smoothly with convenient operation. Therefore it can be seen this system can be applied to provide more convenient fast and precise dynamic parameters monitoring for MPC.
This study proposed a novel model of Cementing dynamic parameters calculating and developed a comprehensive real-time monitoring system for MPC. Through the application of the monitoring, we can adjust the cementing parameters in real time while MPC, and this real-time monitoring has been applied in several wells very well. Therefore, this study is novel and can afford an effective approach to improve cement quality.
Infill Depleted Gas Well Cementing Challenges for Offshore Myanmar Drilling Operations
Authors: Ang Ajita Ang C K , Kumar Avinash A Kumar , Ghani Syazwan B A Ghani , Nann Nann N N Maung , Yusoff M Hanif Yusof , Thuzar Myat Thuzar , Lau Lau C Hen 
Published: June 2021

Abstract
Infill well drilling was planned and executed to increase production in a significantly depleted field. A total of 3 infill wells were drilled in 2 different layers of reservoir for an offshore operator in Myanmar. In the offset wells, water production had become significantly higher throughout. Previously all offset wells in this field were completed with open hole sand screens was chosen to isolate the water bearing sand in the sand reservoir below. Pore pressure prognosis were calculated from offset well depletion rate. Reservoir formation properties is assumed to be same throughout the field.
The first well was drilled and was found that there were two gas water contacts through the 3 targeted sand layers. The gas water contact and WUT (Water Up To) in this well were unexpected and it was prognosed that these gas water contact are there due to compartmentalization. The 7" liner were set and cemented throughout these reservoirs. The cement job went as per the plan and there were no losses recorded during cementing. However, initial cement log did not show isolation. 2 more runs of cement log were performed 6 days and 10 days later while conducting intervention activities on other wells. All three cement log came to the same conclusion, showing no isolation throughout the annulus of the 7" production liner. Significant amount of gas had percolated into the annulus over time. Despite no evidence of poor cement slurry design observed during running various sensitivity studies and post-job lab tests final cement log, which was conducted under pressure and confirmed no hydraulic isolation. A cement remedial job was planned and an investigation was conducted to identify the plausible root causes.
This paper explains on the root causes of poor cement presence in the annulus, and the remedial work that took place to rectify the issue.
Predrill Geomechanical Evaluation Helps in Successful Drilling in High Depletion Wells in a Mature Field, Offshore Sarawak, Malaysia
Authors: Abdul Latip Mohamad Hafiz , Chatterjee Avirup , Ghosh Amitava , Santha Moorthy Priveen Raj 
Published: June 2021

Abstract
Hydrocarbon-bearing reservoirs in a mature field, offshore Sarawak, Malaysia, contains multiple reservoir cycles interbedded with weak shale and coal formations. Years of production from these reservoirs caused significant pressure depletion, as well as reduced fracture gradient and a narrower drilling mud weight window. An improperly weighted mud may induce wellbore instability in weaker, but normally pressured, formations or mud losses in the heavily depleted reservoirs. Globally, mud losses are considered the most expensive well control operation incidents. Earlier drilling campaigns in ths field encountered numerous wellbore instability incidents; hence, a study was conducted to develop an understanding of the drilling issues and assess the stability of the heavily depleted reservoirs. Collaboration between the drilling and geomechanics teams facilitated better understanding of the stability challenges and helped in mitigating risk related to wellbore instability.
A field scale geomechanical model was developed and validated using data from exploration and development wells from different phases of drilling in the study area. The stress path factor (SPF), which determines the reduction in fracture gradient with pore pressure depletion is crucial for defining drilling mud windows, is difficult to constrain in the absence of measured formation fracturing data in virgin and depleted reservoirs. A mud loss event in the depleted zone from a recent drilled well and regional information were used to estimate the range of SPF in the study area. Recorded bottom hole pressures from pressure while drilling (PWD) data suggested that the maximum equivalent circulating density (ECD) recorded was close or within the depleted section. The loss event was associated with reduced fracture gradient due to depletion from its pre-depleted range. This paper describes how geomechanical evaluation with effective well drilling practices and fit for purpose-drilling fluids have helped drilling through depleted reservoirs with ECD management. At the end, it shows a comparison of the predrill wellbore stability mud weight estimates with the actual mud weights used to successfully drill and complete the planned wells.