scholarly journals Ventajas de la perforación direccional: revisión y aplicación en el Oriente Ecuatoriano

2017 ◽  
Vol 4 (1) ◽  
pp. 174-180
Author(s):  
Darío Cedeño Macías ◽  
Jenny Fuentes Cuasquer ◽  
Carlos Portilla Lazo ◽  
Carlos Malavé Carrera ◽  
Jonny Villao Borbor

El avance evolutivo que ha tenido la industria hidrocarburífera a nivel mundial, específicamente en las operaciones de extracción y producción, requieren métodos más precisos y rigurosos para llevar a cabo su cometido, considerando principalmente la relación costo beneficio. Para ello es imperativo desarrollar tecnologías y sistemas de manera paralela a dicha evolución. El objetivo de este trabajo es presentar una revisión actualizada de los aspectos esenciales de la perforación direccional, con énfasis en sus evidentes ventajas respecto a la perforación vertical o convencional, y sobre todo su impacto en la reducción de costos para la industria petrolera. De manera que el nivel académico trabaje estrechamente con el nivel profesional, teniendo como parte medular el análisis de datos de ingeniería de diseño en los sistemas de perforación direccional rotativos y su impacto en la reducción de costos operativos en el proceso de extracción de hidrocarburos. Se presentan y discuten los resultados del desempeño alcanzado por estas herramientas en el campo.  AbstractThe evolutionary advance of the hydrocarbon industry worldwide, specifically in the extraction and production operations, requires more precise and rigorous methods to carry out its mission, considering mainly the cost benefit relation. To do this, it is imperative to develop technologies and systems in parallel with this evolution. The objective of this work is to present an updated review of the essential aspects of directional drilling, with emphasis on its obvious advantages over vertical or conventional drilling, and especially its impact on reducing costs for the oil industry. So that the academic level works closely with the professional level, having as a core part the analysis of design engineering data in rotary directional drilling systems and its impact on the reduction of operating costs in the hydrocarbon extraction process. The results of the performance achieved by these tools in the Auca field are presented and discussed. 

2020 ◽  
Vol 16 (1) ◽  
pp. 125-150
Author(s):  
Brian T. Yates

Treatment and prevention efforts guided by psychological theory, research, and practice can have outcomes of greater value than the resources consumed by those efforts—and outcomes superior to those attainable by other means, often at lower costs. How can we make this hope true more often, for more of the clients who need our services, despite severe resource constraints? Routinely reporting the costs, effectiveness, and benefits of psychological interventions from client, practitioner, and societal perspectives is only a beginning. We also need to use descriptive and inferential statistics to measure, report, and analyze the cost-effectiveness and cost-benefit of our interventions to discover the strongest determinants of intervention costs and outcomes. The emerging literature on cost-inclusive research in psychology suggests that delivery systems are one primary determinant of costs and outcomes of most interventions, as are the psychological techniques applied.


2007 ◽  
pp. 70-84 ◽  
Author(s):  
E. Demidova

This article analyzes definitions and the role of hostile takeovers at the Russian and European markets for corporate control. It develops the methodology of assessing the efficiency of anti-takeover defenses adapted to the conditions of the Russian market. The paper uses the cost-benefit analysis, where the costs and benefits of the pre-bid and post-bid defenses are compared.


2019 ◽  
Author(s):  
Milind Watve

Peer reviewed scientific publishing is critical for communicating important findings, interpretations and theories in any branch of science. While the value of peer review is rarely doubted, much concern is being raised about the possible biases in the process. I argue here that most of the biases originate in the evolved innate tendency of every player to optimize one’s own cost benefits. Different players in the scientific publishing game have different cost-benefit optima. There are multiple conflicts between individual optima and collective goals. An analysis of the cost-benefit optima of every player in the scientific publishing game shows how and why biases originate. In the current system of publishing, by optimization considerations, the probability of publishing a ‘bad’ manuscript is relatively small but the probability of rejecting a ‘good’ manuscript is very high. By continuing with the current publishing structure, the global distribution of the scientific community would be increasingly clustered. Publication biases by gender, ethnicity, reputation, conformation and conformity will be increasingly common and revolutionary concepts increasingly difficult to publish. Ultimately, I explore the possibility of designing a peer review publishing system in which the conflicts between individual optimization and collective goal can be minimized. In such a system, if everyone behaves with maximum selfishness, biases would be minimized and the progress towards the collective goal would be faster and smoother. Changing towards such a system might prove difficult unless a critical mass of authors take an active role to revolutionize scientific publishing.


1999 ◽  
Vol 40 (10) ◽  
pp. 153-159 ◽  
Author(s):  
D. H. Newsome ◽  
C. D. Stephen

Many countries are investing in measures to improve surface water quality, but the investment programmes for so doing are increasingly becoming subject to cost-benefit analysis. Whilst the cost of control measures can usually be determined for individual improvement schemes, there are currently no established procedures for valuing the benefits attributable to improved surface water quality. The paper describes a methodology that has been derived that now makes this possible.


2017 ◽  
Vol 37 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Sanaz Aghazadeh ◽  
Marietta Peytcheva

SUMMARY We conduct a post-implementation research analysis of AS4, a standard guiding voluntary audits of material weakness (MW) remediation disclosures, to understand the reasons for the scarcity of AS4 audits in practice. We use multiple methods (experiments, comment letter analysis, and surveys) to understand the perspectives of key stakeholders. We find that regulators' expectations of the use of the standard did not come to fruition because an equilibrium market for active use of the standard could not be achieved; that managers desire to engage in AS4 audits for the riskier MWs but do not expect the associated costs to be high; and that auditors are reluctant to audit riskier MWs and would charge a considerable risk premium. Finally, we find that investors value AS4 audits, especially for riskier MWs, and find value in an AS4 audit for those risky MWs beyond that of the year-end audit. The overall findings of our study indicate that a mismatch in the cost-benefit functions of the key stakeholders led to a lack of AS4 audits. Our findings are important given the high costs associated with auditing standards development and approval.


2019 ◽  
Vol 290 ◽  
pp. 02007
Author(s):  
Radu Dan Paltan ◽  
Cristina Biriş ◽  
Loredana Anne-Marie Rădulescu

Of many techniques that are used to optimize production and costs, the studies conducted within a profile company lead to our choice for testing the 6Sigma method (the most used method in the automotive industry) in view of the economic efficiency applied in the wood Industry company. This method measures how many flaws exist in a process and determines in a systematic way how to improve it by technical overhauling and eliminating or minimizing the process for efficiency. This research article aims to study the state of research on the optimization of the production process through technical overhauling for panels reconstituted from solid wood and ways to make production more efficient by cutting costs through technical overhauling. From preliminary research, we estimate that all the items founded and others that will result from further research will result in a significant decrease in production costs that are reflected in the cost of the finished product and consequently in increasing the yield of the company by maximizing its profit. At the same time it may be the basis of future research studies in the field. The easier it is to maximize profits, the lower the operating costs are and the higher recovery rate of investments are, that will result a change in the operating mode: “working smarter not harder”.


Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1297
Author(s):  
Juntae Kim ◽  
Hyo-Dong Han ◽  
Wang Yeol Lee ◽  
Collins Wakholi ◽  
Jayoung Lee ◽  
...  

Currently, the pork industry is incorporating in-line automation with the aim of increasing the slaughtered pork carcass throughput while monitoring quality and safety. In Korea, 21 parameters (such as back-fat thickness and carcass weight) are used for quality grading of pork carcasses. Recently, the VCS2000 system—an automatic meat yield grading machine system—was introduced to enhance grading efficiency and therefore increase pork carcass production. The VCS2000 system is able to predict pork carcass yield based on image analysis. This study also conducted an economic analysis of the system using a cost—benefit analysis. The subsection items of the cost-benefit analysis considered were net present value (NPV), internal rate of return (IRR), and benefit/cost ratio (BC ratio), and each method was verified through sensitivity analysis. For our analysis, the benefits were grouped into three categories: the benefits of reducing labor costs, the benefits of improving meat yield production, and the benefits of reducing pig feed consumption through optimization. The cost-benefit analysis of the system resulted in an NPV of approximately 615.6 million Korean won, an IRR of 13.52%, and a B/C ratio of 1.65.


2021 ◽  
Vol 193 (7) ◽  
Author(s):  
Heini Hyvärinen ◽  
Annaliina Skyttä ◽  
Susanna Jernberg ◽  
Kristian Meissner ◽  
Harri Kuosa ◽  
...  

AbstractGlobal deterioration of marine ecosystems, together with increasing pressure to use them, has created a demand for new, more efficient and cost-efficient monitoring tools that enable assessing changes in the status of marine ecosystems. However, demonstrating the cost-efficiency of a monitoring method is not straightforward as there are no generally applicable guidelines. Our study provides a systematic literature mapping of methods and criteria that have been proposed or used since the year 2000 to evaluate the cost-efficiency of marine monitoring methods. We aimed to investigate these methods but discovered that examples of actual cost-efficiency assessments in literature were rare, contradicting the prevalent use of the term “cost-efficiency.” We identified five different ways to compare the cost-efficiency of a marine monitoring method: (1) the cost–benefit ratio, (2) comparative studies based on an experiment, (3) comparative studies based on a literature review, (4) comparisons with other methods based on literature, and (5) subjective comparisons with other methods based on experience or intuition. Because of the observed high frequency of insufficient cost–benefit assessments, we strongly advise that more attention is paid to the coverage of both cost and efficiency parameters when evaluating the actual cost-efficiency of novel methods. Our results emphasize the need to improve the reliability and comparability of cost-efficiency assessments. We provide guidelines for future initiatives to develop a cost-efficiency assessment framework and suggestions for more unified cost-efficiency criteria.


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