Integrating an automated SCADA system with well management: a successful approach

2015 ◽  
Vol 55 (2) ◽  
pp. 482
Author(s):  
Melodi Kaya ◽  
Brandon McCowan ◽  
Remzi Kaya

A well-designed SCADA system finds the middle ground between effectively using the latest advances in technology and drawing on the experience of well operators in optimising production from individual wells. Well management methodologies developed and adopted across time by the field operators can be overlooked in the process of designing a SCADA system as the control philosophy of the system is built on a rudimentary understanding of the operation and often does not allow for the subtle nuances that are part of a well operator's daily interaction with a well. One main challenge in designing a system is to capture the art of well optimisation. It is also important that an effective automated SCADA system meets the needs of other relevant stakeholders in the organisation, such as reservoir engineers, supervisors and business managers. This holistic approach to the design ensures that the data set gathered, which most business decisions will be based on, is uniform across all areas of the company. This extended abstract describes the experience of integrating an automated SCADA system while incorporating successful well management methodologies for leading Australian CSG operators. It outlines the systematic approach to understanding all aspects of well operation and optimisation, using that information to select hardware and software platforms and then implementing and using the system.

2017 ◽  
Vol 10 (2) ◽  
pp. 311-325
Author(s):  
Suruchi Chawla

The main challenge for effective web Information Retrieval(IR) is to infer the information need from user’s query and retrieve relevant documents. The precision of search results is low due to vague and imprecise user queries and hence could not retrieve sufficient relevant documents. Fuzzy set based query expansion deals with imprecise and vague queries for inferring user’s information need. Trust based web page recommendations retrieve search results according to the user’s information need. In this paper an algorithm is designed for Intelligent Information Retrieval using hybrid of Fuzzy set and Trust in web query session mining to perform Fuzzy query expansion for inferring user’s information need and trust is used for recommendation of web pages according to the user’s information need. Experiment was performed on the data set collected in domains Academics, Entertainment and Sports and search results confirm the improvement of precision.


2014 ◽  
Vol 7 (7) ◽  
pp. 2243-2262 ◽  
Author(s):  
C. E. Sioris ◽  
C. D. Boone ◽  
R. Nassar ◽  
K. J. Sutton ◽  
I. E. Gordon ◽  
...  

Abstract. An algorithm is developed to retrieve the vertical profile of carbon dioxide in the 5 to 25 km altitude range using mid-infrared solar occultation spectra from the main instrument of the ACE (Atmospheric Chemistry Experiment) mission, namely the Fourier transform spectrometer (FTS). The main challenge is to find an atmospheric phenomenon which can be used for accurate tangent height determination in the lower atmosphere, where the tangent heights (THs) calculated from geometric and timing information are not of sufficient accuracy. Error budgets for the retrieval of CO2 from ACE-FTS and the FTS on a potential follow-on mission named CASS (Chemical and Aerosol Sounding Satellite) are calculated and contrasted. Retrieved THs have typical biases of 60 m relative to those retrieved using the ACE version 3.x software after revisiting the temperature dependence of the N2 CIA (collision-induced absorption) laboratory measurements and accounting for sulfate aerosol extinction. After correcting for the known residual high bias of ACE version 3.x THs expected from CO2 spectroscopic/isotopic inconsistencies, the remaining bias for tangent heights determined with the N2 CIA is −20 m. CO2 in the 5–13 km range in the 2009–2011 time frame is validated against aircraft measurements from CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container), CONTRAIL (Comprehensive Observation Network for Trace gases by Airline), and HIPPO (HIAPER Pole-to-Pole Observations), yielding typical biases of −1.7 ppm in the 5–13 km range. The standard error of these biases in this vertical range is 0.4 ppm. The multi-year ACE-FTS data set is valuable in determining the seasonal variation of the latitudinal gradient which arises from the strong seasonal cycle in the Northern Hemisphere troposphere. The annual growth of CO2 in this time frame is determined to be 2.6 ± 0.4 ppm year−1, in agreement with the currently accepted global growth rate based on ground-based measurements.


2021 ◽  
Author(s):  
Alexandra Ortiz ◽  
Jon Robitschek

Facial analysis is a critical skill in the pre- as well as post-operative assessment of patients undergoing facial surgery. A successful approach is based on familiarity of normal anatomy, its clinical variance, and developing a systematic approach. In an an effort to develop a comprehensive and methodical approach, we have segregated out nasal elements from facial analysis. Progressive skill refinement requires a combination of foundational anatomy, a critical eye for facial harmony, and routine practice. This review contains 8 figures and 9 references Keywords: nasal analysis, facial analysis, Fitzpatrick, dental occlusion, cephalometrics, MRD-1, MRD-2, chin position, nasal tip projection


2020 ◽  
Vol 11 (3) ◽  
pp. 126-131
Author(s):  
Stacey Cox

Proper nutrition ensures adequate intakes of energy, protein, minerals and vitamins and it is essential for dogs and cats to ensure health and longevity. Veterinary nurses play a vital role in educating pet owners about nutrition as well as implementing the majority of nutritional support to hospitalised animals. As part of a holistic approach to delivering nutritional support, nutrition plans can be used successfully. This article will discuss and educate on how to implement and deliver this systematic approach using a basic nursing process of assessment, planning, implementation and evaluation to ensure an organised and more successful method is used to deliver nutritional support to inpatients.


Smart Cities ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 48-73
Author(s):  
Maroula N. Alverti ◽  
Kyriakos Themistocleous ◽  
Phaedon C. Kyriakidis ◽  
Diofantos G. Hadjimitsis

The smart city notion provides an integrated and systematic answer to challenges facing cities today. Smart city policy makers and technology vendors are increasingly stating their interest in human-centered smart cities. On the other hand, in many studies smart city policies bring forward a one-size-fits-all type of recommendation for all areas in question instead of location-specific ones. Based on the above considerations, this paper illustrates that smart citizen characteristics, alongside local urban challenges, are paving the way towards more effective efforts in smart city policy decision making. Our main presumption is that the development level of human-centered indicators of smart cities varies locally. The scientific objective of this paper is to find a simple, understandable link between human smart characteristics and local determinants in Limassol city, Cyprus. The data set consists of seven indicators defined as human smart characteristics and seven which determine local urban challenges consisting of demographic dynamics and built infrastructure attributes based on housing. Correlations of the 14 above indicators are examined in entirety and separately, as the study area was divided into three spatial sub-groups (high, moderate, and low coverage areas) depending on dispersed urbanization, as the main challenge of the study area. The data were obtained mainly from the most recent population census in 2011 and categorized in sub-groups by triggering CLC 2012. Analyzing the statistics using principal component analysis (PCA), we identify significant relationships between human smart city characteristics, demographic dynamics and built infrastructure attributes which can be used in local policy decision making. Spatial variations based on the dispersed urbanization are also observed regarding the above-mentioned relationships.


2018 ◽  
Vol 18 (3) ◽  
pp. 531-563 ◽  
Author(s):  
Fabrizio Rossi ◽  
Robert Boylan ◽  
Richard J. Cebula

Purpose The purpose of this study is to investigate the relationship between financial decisions and ownership structure by using the control contests on a sample of Italian listed companies. Design/methodology/approach The analysis adopts a balanced panel data set of 984 firm-year observations for the period of 2002-2013, with estimation using a generalized method of moments. Findings The results appear to confirm both the hypotheses of the alignment of interests and the entrenchment effect. The entrenchment and alignment effects are not found to be alternatives but rather are found to co-exist. The presence of a coalition of minority shareholders acts as a tool to control agency costs, particularly when the coalition is instrumental in the contestability of corporate control. Practical implications These findings suggest that minority shareholders may have a larger impact than previously identified by strategically aligning with other shareholders to form coalitions. This study provides several practical implications. First, dividend payout is not necessarily a good instrument to control and monitor agency costs. This is because the payout can be used to expropriate benefits from the minority shareholders. Second, high ownership concentration does not always reduce agency costs. Third, a non-collusive coalition can be more useful in the monitoring of agency costs than other tools, such as the debt level. Originality/value This study shows that there is considerable value to the firm when individual blockholders come together in a contestable environment and become instrumental in making business decisions. The results support the contention that contestability is an excellent deterrent to dampen the expropriation of benefits to minority shareholders. This study also provides evidence that cash holding can be a good substitute for dividends and debt in the effort to limit agency costs.


Author(s):  
L. Lytvynchuk ◽  
I. Rashkovska

The article reveals the actual question of the role of the ideal as a model for teenage inheritance in the process of studying at a university. The multiplicity of problems associated with the formation of the idea of the "ideal" implies the interdependence of various aspects of this process, a holistic approach to the problem. This study used a systematic approach to identify the leading ideals of persons of adolescence as a way of seeing the world.


A sarcasm / joke is a language of expressing the feeling in an opposite manner. In case of aural or cinematographic information the sarcasm can be identified easily through the tonal stress, gestures and facial expressions. But the main challenge of sarcasm is sarcastic detection in textual information where there is an absence of expressions or tonal stress. Presently a days, the utilization of informal organizations are enormously expanded. Most of the people express their feelings in their posts and comments in sarcastic manner. Sarcasm creates inquisitiveness and courtesy towards it in sentimental analysis. Wistful Analysis is the procedure or investigation of examining the sentiments. In this project, I have chosen twitter comments for this sarcastic sentimental analysis which is commonly an opinion mining. The importance of the project is to increase the accuracy rate by feeding huge data set for training. The purpose of finding the sarcasm in social networks is to block the user who points particularly or attack any victim which is not considered as sarcasm.


2021 ◽  
Vol 244 ◽  
pp. 11045
Author(s):  
Nikita Drozdov ◽  
Elena Kuzina ◽  
Marina Vasilenko ◽  
Julia Tagiltseva ◽  
Vyacheslav Galkin ◽  
...  

Business decisions, transport organizations are guide by the principles of maximizing economic efficiency, reducing costs, and corporate social responsibility. Nevertheless, in the production and economic activities of transport enterprises, there are non-productive costs associated with their environmental activities: payment for excess and permissible pollution, costs of eliminating the consequences, accumulated damage, etc. To minimize this type of costs, it is propose to build a model of the activity of transport organizations from the standpoint of a systematic approach, which includes production processes, elements of production processes, management functions, and components of transport impact and aspects of corporate and social liability. The developed model can find its application in planning organizational and technical measures during their formation. The article presents information on unproductive excess costs of the transport industry of the Russian Federation in the period 2013-2016 y.o. The components of transport impact in transport organizations are considered. A model of production and economic activity of transport organizations from the standpoint of a systematic approach is proposed.


Bothalia ◽  
2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Anisha Dayaram ◽  
Linda R. Harris ◽  
Barend A. Grobler ◽  
Stephni Van der Merwe ◽  
Anthony G. Rebelo ◽  
...  

Background: The Vegetation Map of South Africa, Lesotho and Swaziland (National Vegetation Map [NVM]) is a fundamental data set that is updated periodically. The National Biodiversity Assessment (NBA) 2018 process provided an opportunity for a more comprehensive revision of the NVM and better alignment between the terrestrial, marine and estuarine ecosystem maps.Objectives: The aim of this study was to update the NVM 2018 and quantify spatial and classification changes since NVM 2012, and describe the rationale and data sources utilised. We also quantified spatial errors corrected in this version, highlighted progress since NVM 2006, and identified errors and gaps to make recommendations for future revisions.Method: Edits made to the NVM in ArcMap 10.4 were categorised into the following five groups for analysis: (1) New types, (2) Boundary edits, (3) Realm re-assignment, (4) Removed and replaced vegetation types and (5) Deleted map area. Changes were quantified by category and biome. We used various software platforms to correct and quantify spatial errors since 2006.Results: Vegetation types were added (n = 47), removed (n = 35) and had boundary edits (n = 107) in NVM 2018, which affected over 5% of the total map area, compared to 2.6% (2012) and 0.5% (2009) for previous versions. Several sources of error were identified and fixed, and prompted the development of standard mapping protocols.Conclusion: National Vegetation Map 2018 is the most substantial revision of this data set that now fully aligns with maps of all other realms that form part of the NBA. However, parts of the map remain unrefined and provide opportunities for future work.


Sign in / Sign up

Export Citation Format

Share Document