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Dissertations / Theses on the topic 'Oil production industry'
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1
Chee, Tahir Aidil Bin. "A systematic approach to sustainability metrics : palm oil production as a case study." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670180.
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Pasukeviciute, Irma. "An economic analysis of the impact of EU accession upon crude oil and oil production policy in Lithuania." Thesis, University of Plymouth, 2003. http://hdl.handle.net/10026.1/1272.
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This thesis presents a two-stage economic and policy analysis of the impact of European Union (EU) accession upon crude oil production and transportation policy in Lithuania. The first stage provides the theoretical framework for the research. The analysis begins with the overview of the Russian oil industry, as for over 50 years Lithuania was part of the Soviet Union and thus its oil industry was largely controlled by Russian interests. Although Lithuania became independent in 1991, the dependency on Russia in terms of energy remains until today. The following chapters introduce Lithuania's development since its independence, outline the relationship with the EU and present Lithuania's intentions to become a member of the European Union. More specific issues discussed include the interdependence between Russia and the European Union in terms of crude oil and natural gas supplies and the impact of this phenomenon upon the Lithuanian oil industry. Particular emphasis is placed upon the political significance of oil in Lithuania including the ramifications of the sale of the state-owned oil transit and refining interest to USA investors and the consequences in terms of reaction from Russian crude oil suppliers. The second stage centers upon two techniques - content analysis and a scaling approach. The former was used to derive a set of the important issues within the Lithuanian oil industry, whilst the latter employed these issues in order to construct a scale for assessing the opinion of the industry's leading experts. The results of the Likert scale questionnaire were analyzed using a number of techniques and this identified a series of policies relating to crude oil and oil production in Lithuania. These policies take into account the experts' opinion, the process of EU accession and the politico-economic context of the research period, which places particular emphasis on relations between Lithuania and Russia. The final part of this thesis concludes the analysis, presents the implications as well as provides a number of suggestions for further research possibilities in this field.
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Wilson, Timothy George Edmund. "Financial aspects of the oil and gas exploration and production industry." Thesis, University of Exeter, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302980.
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Li, Wenkai. "Modeling oil refinery for production planning, scheduling and economic analysis /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CENG%202004%20LI.
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Persson, Jan A. "Production scheduling and shipment planning at oil refineries: optimization based methods /." Linköping : Univ, 2002. http://www.bibl.liu.se/liupubl/disp/disp2002/tek742s.pdf.
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Hill, Mark Thomas. "The British North Sea : the importance of and factors affecting tax revenue from oil production /." Diss., CLICK HERE for online access, 2003. http://contentdm.lib.byu.edu/ETD/image/etd336.pdf.
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Williamson, Paul E. "Managing technical advice for regulation : the case of petroleum exploration and production /." Canberra : University of Canberra, 2007. http://erl.canberra.edu.au/public/adt-AUC20070820.123307/index.html.
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Thesis (PhD) -- University of Canberra, 2007.Thesis submitted to fulfil the requirements of the unit of Masters Thesis in Administration, and complete the requirements for the degree of Master of Arts in Administration, University of Canberra, July 2007. Bibliography: leaves 177-205.
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de, Nahlik Carmel F. "Which factors drive firm survival within an industry boundary over time? : the UK onshore oil and gas production industry 1984-1999." Thesis, Cranfield University, 2004. http://hdl.handle.net/1826/4050.
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This thesis looks at the UK onshore oil and gas production industry and follows
the history of a population of firms over a fifteen-year period following the
industry's renaissance. It examines the linkage between firm survival, selection
pressures and adaptation responses at the firm level, especially the role of
discretionary adaptation, specifically exploration and exploitation strategies.
Taking a Realist approach and using quantitative and qualitative methods for
triangulation on a new data base derived from archival data, as well as
informant interviews, it tests seven hypotheses' about post-entry survival of
firms.
The quantitative findings suggest that firm survival within this industry is linked
to discretionary adaptation, when measured at the firm level, and to a mixture of
selection and adaptation forces when measured for each firm for each individual
year. The qualitative research suggests that selection factors dominate. This
difference in views is unresolved. However the small, sparse population and
the nature of the oil and gas industry compared with other common research
contexts such as manufacturing or service firms suggests the results be treated
with caution as befits a preliminary investigation.
The major findings include limited support for the theory that the external
environment is the major determinant of firm survival, though environment
components affect firms differentially; resolution of apparent literature
differences relating to the sequencing of exploration and exploitation and
potential tangible evidence of coevolution. The research also finds that, though
selection may be considered important by industry players, discretionary
adaptation appears to play the key role, and that the key survival drivers for this
population are intra-industry ties, exploitation experience and a
learning/experience component. Selection has a place, however, in
determining the life-cycle of the firm returning to be a key survival driver at
certain ages of the firm inside the industry boundary.
9
Lunde, Amaris. "Rural development and sustainable agriculture in the European Union Mediterranean : a case study on olive oil production in Kefalonia, Greece /." Online version, 2007. http://content.wwu.edu/cdm4/document.php?CISOROOT=/hcc&CISOPTR=2385&REC=14.
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Lund, Svein Sørlie. "Political regionalisation and oil production in Africa: the case of the LAPSSET Corridor." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96662.
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Thesis (MA)--Stellenbosch University, 2015.ENGLISH ABSTRACT: This study analyses regionalism in Africa from a theoretical and an applied perspective. The purpose of the study is to contribute to the critical and reflectivist corpus of theories of regionalism. This field is dominated by rationalist theories that are largely preoccupied with formal inter-‐state and market-‐driven processes of regional integration. The rationalist theoretical hegemony in academia and politics serves to reinforce and reproduce neoliberal ideology informing global political economic practices. This study illustrates the limitations and normative assumptions of these orthodox frames and demonstrates the multidimensionality of regionalisation. The study applies a combination of three critical reflectivist theories: the World Order Approach, the New Regionalism Approach and the New Regionalisms Approach/Weave-‐ world in an analysis of an ongoing regional oil and infrastructure project in East Africa called the Lamu Port, South Sudan and Ethiopia (LAPSSET) Corridor. The study’s primary research question investigates the extent to which oil production is driving the manifestation of (new) regionalism in East Africa, especially in terms of the LAPSSET Corridor, with secondary questions identifying the actors involved in this regionalisation, and what the theoretical framework reveals about the regionalisation in East Africa. After a review of some of the most influential theoretical contributions to the study of regions a critical reflectivist approach is suggested as an alternative to conventional rationalist theories. A broad historical overview of the East African region is elaborated with a focus on Uganda and Kenya, highlighting the social, cultural, political and economic evolution of the region before reflection on how forces of production relate to regime type in East Africa. Subsequently, a case study establishes an assessment of the historical and social construction of the LAPSSET Corridor. The objectives of the LAPSSET Corridor and its implementation mechanisms are scrutinised and viewed in comparison with its potential for inclusiveness of local participation and sustainable socio-‐economic development. Two important conclusions can be drawn from this study. The first is that oil production is critical in the current regionalisation in East Africa. However, the nature of this regionalisation flows contrary to other regional motives. The second conclusion is that the anti-‐reductionist and critical reflectivist approach is indeed essential to fully understand the variety of multi-‐level factors of structures and agency that influence regionalism and regionalisation in East Africa.
AFRIKAANSE OPSOMMING: Hierdie studie analiseer regionalisme in Afrika vanaf ‘n teoretiese en ‘n toegepaste perspektief. Die doel van die studie is om by te dra tot die kritiese en reflektiwistiese liggaam van teorie oor regionalisme. Hierdie studieveld word gedomineer deur rasionalistiese teorieë wat meerendeels besig is met formele inter-‐staat en markgedrewe prosesse van regionale integrasie. Die rasionele teoretiese hegemonie in akademia en politiek versterk en herproduseer sodanig neoliberale ideologie wat global politiek-‐ekonomiese praktyk bepaal. Hierdie studie wys die beperkinge en normatiewe aannames van hierdie ortodokse beskouings uit, en ontbloot die multidimensionaliteit van regionalisering. Die studie pas ‘n mengsel van krities-‐reflektivistiese teorieë toe: die Wêreldorde Benadering, die Nuwe Regionalisme Benadering, en die “Verweefde Wêreld” Benadering in ‘n analise van die regionale olie en infrastruktuurprojek in Oos-‐ Afrika wat die “Lamu Port, South Sudan and Ehtiopia” (LAPSSET) Korridor genoem word. Die studie se primêre navorsingsvraag fokus op die mate waartoe olieproduksie die manifestering van (nuwe) regionalisme in Oos-‐Afrika dryf, veral in terme van die LAPSSET Korridor, met sekondêre vrae om die akteurs te identifiseer wat betrokke is by hierdie regionalisering, en wat die teoretiese benadering blootlê aangaande die regionalisering in Oos-‐Afrika. Na ‘n oorsig van die belangrikste teoretiese bydraes tot die studie van streke word ‘n krities-‐reflekiwistiese benadering voorgestel as ‘n alternatief vir konvensionele rasionele teorieë. ‘n Breë historiese oorsig van die Oos-‐Afrika streek word verskaf, met ‘n fokus op Uganda en Kenia, en dit beklemtoon die sosiale, kulturele, politieke en ekonomiese ontwikkeling van die streek voordat ‘n oordenking van hoe die magte van produksie betrekking het op regimetipe in Oos-‐Afrika. Voorts verskaf die gevallestudie ‘n oorsig van die historiese en sosiale daarstel van die LAPSSET Korridor. Die doelwitte van die LAPSSET Korridor en sy implementeringsmeganismes word geëvalueer en beskou in vergelyking met sy potensiaal vir die insluiting van plaaslike deelname en volhoubare sosio-‐ekonomiese ontwikkeling. Die studie maak twee belangrike gevolgtrekkings moontlik. Die eerste is dat olieproduksie krities belangrik is in die huidige regionalisering in Oos-‐Afrika. Maar tog is die aard van die regionaliseringspatrone teenstrydig met ander streeksmotiverings. Die tweede gevolgtreking is dat die teen-‐reduksionistiese en krities-‐reflektiwistiese benaderings wel sentraal staan tot ‘n volle beskouing van die verskeidenheid van veelvlakkige faktore wat regionalisme en regionalisering in Oos-‐Afrika beïnvloed.
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Talballa, Husam. "Towards Sustainable Waste Management in the Sudanese Oil Industry - : a case study of Petrodar Operating Co." Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-55500.
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Proper management of different waste streams generated in conjunction with oil Exploration and Production (E&P) activities in Sudan is a major challenge for Petrodar Operating Company (PDOC) inter alia. PDOC generates a range of waste streams that are expected to significantly increase especially during and after the planned expansions. Therefore, there is a growing need for establishing an Integrated Waste Management System (IWMS) through a systematic approach for enhancing the attempts to redirect PDOC’s efforts towards realizing its commitment to best HSE standards. This study introduces the composition of an Integrated Waste Management System (IWMS) that incorporates better strategies and practices that particularly suit the case of PDOC’s Central Processing Facilities (CPF) (Al-Jabalayn site), Sudan in accordance with the Waste Management Hierarchy. In the first part; mainly the qualitative characterization of the past, current and the near-future situation at Al-Jabalayn site in terms of waste management strategies and practices are all described and analyzed, followed by the creation of a “waste inventory”. Accordingly the elements of a recommended set of appropriate waste management strategies and practices are identified in order to form a framework of an Integrated Waste Management System (IWMS) that particularly fits the case of Al-Jabalayn site and its operating circumstances. The model framework that has been suggested based on this case study can be promoted, replicated and applied to similar Sudanese E&P sites; operating under same conditions. The adoption of such an approach shall pave the way to diminish the gap between the current situation and the most possible sustainable waste management system in the sector.
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Terzi, Esra. "The 19th Century Olive Oil Industry In Ayvalik And Its Impact On The Settlement Pattern." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609171/index.pdf.
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Ayvalik which is located on the Aegean coast of the West Anatolia made its main breakthrough in the 19th century and owe this development to olive oil production which was the main economic input of the settlement since the establishment of Ayvalik.
Ayvalik was within the hinterland of izmir which was gained importance as a regional trade centre in the 19th century. Thus, Ayvalik found the way to improve its trade relations in an international level and eventually increase its olive oil production volume due to the growing demands.
The new form of olive oil productionfactories, developed together with the traditional house and workshop productions in the last quarter of the 19th century in Ayvalik. These three forms of production made up the second significant usage within the Ayvalik after the residential areas. The two or more floored, large volumed buildings were especially located on the shore, near to the port and trade facilities, on a flat terrain and became the most dominant and attractive buildings of the settlement. Besides the impressive industrial buildings, olive oil production itself effected the settlement pattern of Ayvalik. The main transportation axes were formed accordingly to the relationship between raw material areas and production places. The olive oil production also has an effect on the physical development direction of the settlement. The areas influenced from the negative effects of the production i.e., smell and dust were not chosen for development. The development of industrial buildings also blocked the physical relationship between the residential areas and sea. The industrial buildings such as factories, workshops and warehouses along the coast line reflect the industrial character of Ayvalik in the settlement&rsquo
s silhouette.
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Reinhardt, Timothy Patrick. "Empirical methods for comparing governance structure." Thesis, [Austin, Tex. : University of Texas, 2009. http://hdl.handle.net/2152/ETD-UT-2009-05-134.
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Klein, Oliver. "Erosioncorrosion testing of materials for the use as screw materials in twin screw multiphase pumps in the oil and gas production industry." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985093609.
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Rodríguez, Lozada Verónica Hali. "Why do foreign oil companies continue to operate in exploration and production actitives in Bolivia´s hydrocarbon industry after its 2006 nationalization?" Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/117395.
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Magíster en Estrategia Internacional y Política ComercialThis report explores the question: Why do foreign oil companies continue operate in exploration and production activities in Bolivia’s hydrocarbon industry after its 2006 nationalization? The history of Bolivia’s hydrocarbon industry is filled with cycles of nationalization and privatization. Each cycle has produced dramatic changes in Bolivia’s petroleum fiscal regime. Bolivia’s 2006 nationalization of its hydrocarbon industry has given Bolivia an international reputation as a high risk country to investment in. However, foreign direct investment is still occurring since the 2006 nationalization. The most interesting aspect of this continued foreign direct investment is that, the majority of it is from existing foreign companies that were there before the 2006 nationalization. This report exposes the underlying reasons as to why foreign companies continue to operate in Bolivia’s hydrocarbon sector despite its most recent nationalization in 2006. A historical analysis will be conducted on Bolivia’s hydrocarbon industry; more specifically, the time period between 1990 until 2009 will be the main focus of this report. The legal changes in Bolivia’s hydrocarbon industry since the 1990s will be evaluated in order to understand Bolivia’s strategy of nationalization in 2006. Throughout the history of Bolivia’s petroleum fiscal regime, there has been a fluctuation of contractual agreements in use with foreign oil companies. After 2006, Bolivia’s contractual agreements finally began to benefit the state by allowing it to receive its fair share of wealth from its hydrocarbon resources. Additionally, Bolivia’s “nationalization” did not involve expropriation; instead it consisted of the enforcement of renegotiations of contractual agreements between the Bolivian State and foreign oil companies. The renegotiations are instrumental in explaining why foreign companies continue to operate in Bolivia’s hydrocarbon industry after its nationalization in 2006. This report will focus on examining Bolivia’s contractual agreements from 1990 until 2009 in order understand why foreign oil companies continue to operate in Bolivia’s hydrocarbon industry in spite of its 2006 nationalization. Bolivia’s main source of revenue comes from foreign companies’ exploitation and exploration of its hydrocarbon resources, yet Bolivia has always lost its fair share of wealth from its natural resources due to unfavorable contractual agreements with foreign oil companies. 3 Universidad de Chile Before the 2006 Nationalization, Bolivia had continuously given foreign investors the majority of revenue from its hydrocarbon resources in an effort to attract and keep foreign investors in its hydrocarbon industry. In the 1990s, Bolivia wanted to increase its levels of foreign direct investment in order to import new technologies as well as to improve the expertise in exploration, extraction, transport and production activities within its hydrocarbon industry. Bolivia’s main goal behind seeking FDI was to develop its hydrocarbon sector in order to increase its national wealth from its natural resources. In addition, Bolivia’s hydrocarbon sector was extremely undeveloped. The Bolivian State was ill equipped and had inefficient state assets to develop its hydrocarbon industry. Bolivia’s petroleum fiscal regime in the 1990s was designed to favor foreign investors in order to attract and maintain foreign investment within its hydrocarbon industry. However, this caused Bolivia to lose significant control over its hydrocarbon industry as well as the wealth from its hydrocarbon resources. As a result, it became necessary for Bolivia in 2006 to renegotiate their contracts with foreign energy companies in order for Bolivia to obtain its fair share of revenue from its hydrocarbon resources. Since 2005, the government has sought to increase its share of total hydrocarbon revenues. In May 2005, the former president, Carlos Mesa introduced a new Hydrocarbon Law No. 3058 which created a direct tax, the IDH (Direct Tax on Hydrocarbons), which required companies to pay 32% of production value to the state, in addition to an 18% royalty rate that was already required. However, this law was not yet implemented until Evo Morales became the president of Bolivia in 2006. Shortly after Evo Morales became president of Bolivia, he implemented the 2006 Nationalization Decree which mandated the Hydrocarbon Law No. 3058. This law required renegotiation of contractual agreements with all foreign oil companies operating in Bolivia. The Law No. 3058 made the Bolivian State owner of all hydrocarbon resources and private companies were permitted to only keep 18 percent of production value. This law also nationalized refineries and hydrocarbon distribution companies in order to ensure the presence of Bolivia’s national oil company YPFB (Yacimientos Petrolíferos Fiscales Bolivianos) in every stage of the value chain. These actions, together with the rising international hydrocarbon prices have increased the Bolivian state’s hydrocarbon revenues. 4 Universidad de Chile The information obtained from the research in this report, will explain why foreign companies continue to operate in exploration and production activities in Bolivia’s hydrocarbon industry since its 2006 nationalization. Bolivia’s strategy behind its nationalization and its current use of contractual agreements will provide the main arguments as to why foreign companies continue to operate in Bolivia in spite of its hydrocarbon nationalization in 2006.
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Nisbet, D. J. "Lead time performance in the supply chain :|ba case study of the equipment supply environment of the offshore oil exploration and production industry on the UK continental shelf." Thesis, Cranfield University, 2000. http://hdl.handle.net/1826/4278.
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This research study is an examination of the influencing factors on lead time performance
in a capital equipment supply environment. The research is being undertaken as a case
study of the capital equipment supply environment of the offshore oil exploration and
production industry on the UK Continental Shelf. The study methodology is justified as
a case supply environment, with multiple sources of data from research instruments
including: exploratory and detailed interviews and structured survey methods. The
literature review examines time-based approaches to supply chain improvement and the
literature related to supply chain integration. Relevant literature related to supply chain
systems/structures and relationships/infrastructure are examined as potential influencing
factors on lead time performance. A background of the generic case environment is
provided, along with relevant literature related to the supply chain in oil exploration and
production. The results of a survey of the state of integration of the offshore supply chain
are presented and analysed, followed by the results of a structured mail survey within the
capital equipment environment. The survey information is used to inform the Case
Research phase and define a division of the case environment related to different
complexity levels. Individual cases are analysed based on the framework from the
literature review and refined from the survey phase. The research questions are addressed
at the level of each individual case and propositions derived which are then validated
based on cross-case comparisons. Aspects of literature that are supported by the study are
discussed along with those areas where there is a contribution to literature. Contribution
to supply chain theory is justified related to the derivation of a Types Classification
Model as a means of understanding the generic nature of a capital equipment supply
chain. Contribution to methodology is justified, based on the use of a supply
environment for study and the use of a supply chain trace-back method.
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Nisbet, D. J. "Lead time performance in the supply chain : a case study of the equipment supply environment of the offshore oil exploration and production industry on the UK continental shelf." Thesis, Cranfield University, 2000. http://dspace.lib.cranfield.ac.uk/handle/1826/4278.
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This research study is an examination of the influencing factors on lead time performance in a capital equipment supply environment. The research is being undertaken as a case study of the capital equipment supply environment of the offshore oil exploration and production industry on the UK Continental Shelf. The study methodology is justified as a case supply environment, with multiple sources of data from research instruments including: exploratory and detailed interviews and structured survey methods. The literature review examines time-based approaches to supply chain improvement and the literature related to supply chain integration. Relevant literature related to supply chain systems/structures and relationships/infrastructure are examined as potential influencing factors on lead time performance. A background of the generic case environment is provided, along with relevant literature related to the supply chain in oil exploration and production. The results of a survey of the state of integration of the offshore supply chain are presented and analysed, followed by the results of a structured mail survey within the capital equipment environment. The survey information is used to inform the Case Research phase and define a division of the case environment related to different complexity levels. Individual cases are analysed based on the framework from the literature review and refined from the survey phase. The research questions are addressed at the level of each individual case and propositions derived which are then validated based on cross-case comparisons. Aspects of literature that are supported by the study are discussed along with those areas where there is a contribution to literature. Contribution to supply chain theory is justified related to the derivation of a Types Classification Model as a means of understanding the generic nature of a capital equipment supply chain. Contribution to methodology is justified, based on the use of a supply environment for study and the use of a supply chain trace-back method.
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Алмусаеди, Х. К. А., and H. K. A. Almusaedi. "Использование проектного управления при развитии нефтеперерабатывающей промышленности Ирака : магистерская диссертация." Master's thesis, б. и, 2020. http://hdl.handle.net/10995/93346.
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Целью исследования является разработка методических подходов и рекомендаций для процессов разработки и строительства нефтеперерабатывающих предприятий. Предметом исследования является организация и управление проектами строительства нефтеперерабатывающих предприятий в Ираке. В работе использованы основные инструменты проектного управления (структурные декомпозиции, календарный план работ, план управления рисками), а также инструменты определения причинно-следственных связей. Дана оценка эффективности проекта для ключевых участников.The aim of the study is to develop methodological approaches and recommendations for the development and construction of oil refineries. The subject of the research is the organization and management of projects for the construction of oil refineries in Iraq. The work used the main tools of project management (structural decomposition, work schedule, risk management plan), as well as tools for determining cause-and-effect relationships. An assessment of the effectiveness of the project for key participants is given.
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Aramayo, Jesus Leodaly Salazar. "Modelagem do desempenho ambiental dos projetos de explora??o e produ??o aplicando equa??es estruturais." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13026.
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Previous issue date: 2013-04-08A legisla??o ambiental e os principais agentes que se relacionam com a empresa se constituem em fatores ex?genos que n?o podem ser negligenciados ao formular-se e avaliar-se a pol?tica ambiental corporativa. As influ?ncias ex?genas e seus efeitos sobre a gest?o ambiental e o gerenciamento de projetos de explora??o e produ??o (E&P) e, por essa via, sobre o desempenho ambiental, foram objetos de estudo desta tese. Embora o desempenho ambiental seja um assunto relevante, a pesquisa sobre esse tema ainda ? escassa. Tal car?ncia desponta ainda mais acentuada quando se aborda o desempenho ambiental de projetos na ind?stria de petr?leo e g?s. O principal objetivo deste estudo foi avaliar a rela??o entre a legisla??o ambiental vigente, as a??es de ?rg?os reguladores, fornecedores, empresas terceirizadas e comunidades locais e o desempenho ambiental dos projetos de E&P na ind?stria de petr?leo e g?s e, tamb?m, analisar os efeitos do sistema de gest?o ambiental e o gerenciamento dos projetos sobre tal desempenho. Na fase abdutiva, foi conduzido um estudo de caso com abordagem qualitativa em uma grande empresa brasileira do setor de petr?leo e g?s, na fase dedutiva, foi realizada uma pesquisa survey explanat?ria de corte transversal com abordagem quantitativa, incluindo 113 projetos de E&P de cinco unidades executoras da empresa. Foi formulado um modelo conceitual, com cinco construtos e sete hip?teses de pesquisa, representativo dos efeitos de fatores externos sobre o desempenho ambiental dos projetos de E&P. Os dados foram tratados aplicando a An?lise Fatorial Explorat?ria e a Modelagem de Equa??es Estruturais com aplica??o dos softwares IBM? SPSS? Statistics 20.0 e IBM? SPSS? Amos 18.0. O modelo de equa??es estruturais foi reespecificado e estimado utilizando o m?todo de M?xima Verossimilhan?a e o procedimento bootstrap com 2000 reamostragens, at? alcan?ar adequados valores dos ?ndices de ajustamento. O modelo mostrou boa ader?ncia ?s evid?ncias emp?ricas, representando uma teoria explicativa dos fatores que influenciam o desempenho ambiental dos projetos de E&P na empresa estudada. As estat?sticas descritivas apontaram adequado desempenho dos projetos de E&P com rela??o aos efluentes descartados, volume de ?gua reutilizada, redu??o de res?duos e pr?ticas de reciclagem. Identificou-se que projetos de maior porte alcan?am melhor desempenho ambiental em rela??o aos de menor tamanho. N?o foram achadas diferen?as significativas entre os desempenhos de projetos executados por unidades operacionais distintas. Os resultados da modelagem indicaram que nem a legisla??o ambiental, nem os agentes externos exercem influ?ncia significativa sobre a sistem?tica da gest?o dos projetos de E&P. Os agentes externos atuam sobre a gest?o ambiental da empresa exercitando capacidades colaborativas, obstrutivas e propositivas. A legisla??o ambiental ? percebida como entrave ao desenvolvimento dos projetos ao longo de seu ciclo de vida, principalmente, pelas defici?ncias dos ?rg?os ambientais. Identificou-se que o sistema de gest?o ambiental influencia diretamente o Programa de Desenvolvimento e Execu??o de Projetos de E&P, que, por sua vez, provoca efeitos diretos e indiretos sobre o desempenho ambiental. Finalmente, comprovou-se que o Sistema de Gest?o Ambiental da empresa ? determinante para o desempenho ambiental dos projetos de E&P, tanto pelos seus efeitos diretos, como pelos indiretos, estes ?ltimos mediados pela sistem?tica de gest?o dos projetos de E&P
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Tuelle-Pambo, Imelda. "L’exploration-production offshore des hydrocarbures : prévention, répression et réparation des déversements illicites d’hydrocarbures." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0263.
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Dans l’attente d’une augmentation de la part des énergies renouvelables dans le mix énergétique, les énergies fossiles, telles que les hydrocarbures, restent encore la première source d’approvisionnement énergétique de l’Homme. La raréfaction des hydrocarbures sur le continent conduit les industriels à se tourner vers l’offshore. Ainsi, aux Etats-Unis (1er pays producteur de pétrole au monde en 2015), la production pétrolière offshore (principalement concentrée dans le Golfe du Mexique) représente plus de la moitié de la production nationale totale de pétrole. La France, quant à elle, se tourne désormais vers l’exploration de sa très grande zone offshore s’étendant sur les quatre coins du monde (notamment au large des côtes guyanaises). Une telle importance économique ne doit pas passer sous silence la dangerosité de l’exploitation pétrolière offshore. L’explosion du Deepwater Horizon en avril 2010, au large des côtes de la Louisiane (Golfe du Mexique ; Etats-Unis) en est une parfaite illustration (11 salariés tués, endommagement de l’écosystème, victimes collatérales, etc.). Le droit doit pouvoir appréhender efficacement les risques générés par l’exploitation des hydrocarbures en offshore. L’étude comparative des législations française et états-unienne met en exergue les carences du droit français. L’exploitation des ressources minérales du plateau continental des Etats-Unis, la répression des déversements illicites d’hydrocarbures et, la réparation des dommages qui en résultent, sont régies par des lois fédérales spéciales. A contrario, l’exploitation du plateau continental et de la Zone économique exclusive française s’inscrit dans un cadre législatif et règlementaire plus général. Il apparaît donc nécessaire de proposer une réforme de la législation actuelle. Dans cette optique, ce travail a vocation à émettre des propositions de réforme. La nouvelle législation française spéciale doit être pensée dans une approche systémique. Les éléments qui composent le système doivent interagir. Le premier élément est un régime optimal de prévention qui, s’articule autour de la sécurité des travailleurs et des installations. Le second élément est un régime de répression des infractions à la législation de prévention et, du délit de pollution par les hydrocarbures. Le troisième élément est un régime d’indemnisation civile de plein droit des conséquences dommageables de l’accident pétrolier (lorsqu’il n’est pas couvert par le régime exclusif d’indemnisation des accidents du travail) et du déversement d’hydrocarbures. Responsabilités pénale et civile concourent par ailleurs à la prévention par la dissuasion, cela en vue d’une meilleure internalisation des risques dans la politique managériale des entreprises pétrolières et parapétrolières intervenant sur les sitesWaiting for a complete change to the development of renewable energies, fossil energies, such as conventional oil and gas, remain still the primary source of energy supply. The rarefaction of conventional oil on the continent has lead major oil companies to turn to the offshore. Thus, in the United States (First oil producer country in the world in 2015) the offshore oil exploitation (mainly concentrated in the Gulf of Mexico) represents more than half of the national oil production. France, as for it, turns now to the exploration of its very great offshore zone extending on the four world’s corners (particularly, off the Guyana’s coasts). This significant economic development should not overlook the dangerousness of offshore oil activities. The explosion of Deepwater Horizon in April 2010, off the Louisiana’s coasts (Gulf of Mexico, The United States) is a perfect illustration (11 killed employees, ecosystem damaged, collateral victims, etc). The Law must be able to frame the risks generated by the offshore oil activities. The comparative study of French and American legal systems highlights French law’s gaps. The exploitation of the American continental shelf’s mineral resources, the repression of unlawful oil discharges and, the remedies of damages, which result from it, are governed by special federal laws. A contrario, the exploitation of the French continental shelf and exclusive economic Zone is governed by general laws. It thus appears necessary to promote a reform of the current legislation. Accordingly, this work is to put forth reform proposals. The special French new legislation must be worked out in a systemic approach. The elements which compose the system must interact. The first element is an optimal prevention that is articulated around the security of the workers and the installations. The second element is the repression of the offenses to the legislation of prevention and, unlawful oil discharges. The third element is a strict liability for the damages result from oil accident (when they are not covered by the exclusive liability for the damages result from occupational accidents) and oil spill. Criminal and civil liabilities also contribute to the prevention by the deterrent for better consideration of risks in the management of oil companies and others companies involving in offshore oil activities
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Tapasvi, Dhruv 1981. "Evaluating the Economic Feasibility of Canola Biodiesel Production in North Dakota." Thesis, North Dakota State University, 2006. https://hdl.handle.net/10365/29903.
Full textAbstract:
Numerous factors have pushed energy from biomass to the forefront of policy and industry discussions. Large harvests of traditional crops, low farm prices, dependence on foreign energy sources, and environmental problems have increased interest in renewable energy sources. Tools are needed to evaluate and compare different available feedstocks and to identify parameters and modifications for the production of renewable fuels such as biodiesel. The first paper examines the development of a biodiesel process model using commonly available spreadsheet software and process-engineering principles. The basis of the model is a continuous process with two stirred-tank reactors and sodium methoxide catalysis. The process is modeled as 27 units with 51 flows and 18 components. Mass flow rates and compositions of the process input and output streams are quantified using mass and component balances, energy balances, stoichiometric relations, and established process parameters. Oil composition and rate, methanol:triglyceride ratio, and expected transesterification of triglyceride are the user-specified inputs in the model. Based on commonly reported parameters (6: 1 methanol:triglyceride ratio and 98%
transesterification) and a basis of 100 kg/h crude soybean oil, the model computes inputs of 13.8, 10.8, and 34.7 (in kg/h) for methanol, 10% sodium methoxide in methanol, and process water, respectively; and outputs of 93.5, 10.3, and 55.6 for soy biodiesel, glycerol, and waste stream, respectively. In the second paper, the mass flow rate data from the developed biodiesel process model are linked to cost data for evaluating the economic feasibility of biodiesel production in North Dakota with canola oil as the feedstock. Estimations of capital investment cost and total annual biodiesel product cost are conducted for two canola biodiesel production plants with 5 and 30 million gallons per year (MGY) capacities. These capacities were selected based on North Dakota and neighboring states' biodiesel demands, respectively. Capital investment cost analysis shows the presence of considerable economies of scale for the biodiesel production process for the two capacities. These cost calculations are based on the purchased equipment cost calculated from the equipment specifications. Total annual biodiesel product cost analysis shows that the major portion (>80%) of the total product cost is the raw material cost, similar to the analysis of previous economic feasibility studies. Cost benefits from the economies of scale are still present for the fixed charges, general expenses, and the manufacturing costs (other than the raw material costs) in the
annual product cost calculations for the two production plant capacities. Finally, based on the gross profit evaluation for both plants, this study concludes that it is more worthwhile to invest in the 30 MGY production plant because of the greater cost returns from the economies of scale benefits. The results are more encouraging after the incorporation of the federal biodiesel tax incentive and favor the investment for biodiesel production in North Dakota.North Dakota. Agricultural Experiment Station
USDA-CSREES (under Agreement No. 2003-34471-13523)
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Tahchi, Belgacem. "Géopolitique de la Sonatrach : entre internationalisation diffuse et souveraineté en déclin." Thesis, Paris 4, 2015. http://www.theses.fr/2015PA040098.
Full textAbstract:
L’Algérie est classée au neuvième rang mondial des pays producteurs de gaz naturel et représente 2,4 % de la production de gaz naturel. Elle occupait le quinzième rang mondial, et le troisième en Afrique avec 9,2 de milliards de barils de pétrole, en termes de réserves prouvées de pétrole, soit 0,9 % des réserves mondiales. A la bonne qualité du pétrole algérien,idéal par sa faible teneur en soufre ce qui le rend très facile à raffiner, s’ajoutent une géologie clémente et une situation avantageuse vis à vis des marchés européens. Cette proximité a été renforcée par les nouveaux gazoducs t-ransméditerranéens de Medgaz et du futur Galsi et par une flotte de méthaniers. Avec une économie dépendante des recettes des hydrocarbures, constituant 97% des exportations, l’Algérie s’est mise dans un piège énergétique. Dans ce domaine l’entreprise algérienne en charge du secteur, la Sonatrach, détient le contrôle de la filière des hydrocarbures sur tous les niveaux. L’arsenal juridique du secteur s’est doté de la loi N°2006-10 relative aux hydrocarbures qui, à première vue, répond aux prospectives du développement de la Sonatrach, dans le mesure où elle cherche à se libérer de l’État et àplanifier sa propre politique expansionniste dans un schéma de management moderne s’alignant en même temps aux offres concurrentielles des grandes firmes internationales leaders dans ce domaine. L’analyse de la politique de l’entreprise et du secteur en général, a pu contribuer à donner une réponse sur la problématique des choix stratégiques qui s’offrent à de l’entrepriseAlgeria is ranked as the ninth largest natural gas producing countries, representing 2.4% of the world natural gas roduction. It held the fifteenth place in the world and the third in Africa with 9.2 billion barrels of oil in terms of proven reserves, which represents 0.9% of world oil reserves. To the good quality of Algerian oil, ideal for its low sulfur content, which makes it very easy to refine, a clement geology and an advantageous nearness from the European markets are added. This proximity is enhanced by the new trans-mediterranean pipelines Medgaz, the future Galsi and by a fleet of LNG tankers. With an economy dependent on hydrocarbon revenues, constituting 97% of its exports, Algeria is set up in an energy trap. In this field the Algerian company responsible for the sector, Sonatrach, holds control of the hydrocarbons chain on all its levels. The law 2006-10, relating to hydrocarbons, at first sight responds to forward-looking development of the Sonatrach, knowing that the Company is looking also to break free from the state and to plan its own expansionist plan in a modern management model, aligning at the same time with the competitive offers proposed by the international firms leading in this field. The analysis of the policy of the company and the Algerian hydrocarbons sector in general, contribute to answer to problematic of the strategic choices available to the company
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Deterre, Sophie. "Influence des étapes de production du parfum issu des écorces d’orange amère (Citrus aurantium L. ssp amara) sur la qualité aromatique." Thesis, Paris, AgroParisTech, 2012. http://www.theses.fr/2012AGPT0023/document.
Full textAbstract:
La liqueur Grand Marnier® produite par la Société des Produits Marnier-Lapostolle (SPML), contient un arôme d'orange amère. Cet arôme, appelé parfum, est obtenu à partir de l'huile essentielle (HE) d'écorces d'orange amère qui ont subi un procédé de macération-distillation. Le but de ce travail de thèse a été de cibler les composés d'arôme clés des écorces d'orange amère et de comprendre leur comportement au cours de la production du parfum, afin de trouver des stratégies d'optimisation. Les axes d'étude ont été les suivants : (1) identification des composés volatils odorants de l'HE et du parfum d'orange amère; (2) observation et compréhension des étapes de la production du parfum, des matières premières à la distillation, et étude de leur impact sur la qualité du parfum (3) étude détaillée de la distillation discontinue multi-étagée. Parmi les 51 et 37 composés volatils identifiés de l'HE et du parfum, nous avons détecté par olfactometrie 19 composés odorants dans l'HE et 7 dans le parfum. Avec les résultats de l'HE de l'axe (1), une sélection de composés d'arôme, dits marqueurs, a été faite selon certains critères. Cette procédure a été validée par une étude sensorielle de classification d'HE d'orange amère de différentes origines géographiques. Les observations et résultats de l'axe d'étude (2) ont montré que la distillation est l'étape de la production qui a le plus grand impact sur la qualité du parfum. Durant la distillation, 9 paramètres de conduite, tels que le titre alcoométrique volumique et le taux de reflux, ont été régulièrement enregistrés. En parallèle, les composés marqueurs ont été quantifiés dans des échantillons de distillat prélevés à des moments spécifiques de la distillation des têtes aux queues. La connaissance du comportement des composés marqueurs et de leurs propriétés physico-chimiques permet de mieux comprendre la conduite actuelle de la distillation. Ainsi des changements de paramètres de distillation ont été proposés et des essais pilote ont été mis en place dans l'axe d'étude (3). Dans l'optique de contrôler et d'optimiser la distillation discontinue multi-étagée, d'autres travaux ont été menés en simulation avec le logiciel BatchColumn de ProSim®. Cela nécessite de : 1) déterminer les données d'équilibre liquide-vapeur de certains composés marqueurs ; 2) trouver un modèle thermodynamique représentant les données expérimentales ; 3) intégrer les données expérimentales et le modèle choisi dans le logiciel BatchColumn. La distillation telle qu'elle est menée à la distillerie de la SPML a bien été représentée. De futures études, incluant des changements de paramètres tels que la composition de la charge du bouilleur, des paramètres de conduite et de structure pourront être réalisées, afin d'optimiser le procédé et voir l'impact de ces changements sur la qualité du parfumThe Grand Marnier® liqueur produced by the Société des Produits Marnier-Lapostolle (SPML), is composed of a bitter orange aroma. This aroma, called parfum, is produced from essential oil (EO) of bitter orange peelings that underwent a maceration-distillation process. The aim of this PhD study was to focus on the key odour compounds of the bitter orange peelings, and understand their behaviours throughout the process, in order to find optimisation strategies. The following strategies were applied: (1) identification of odour volatiles compounds in bitter orange EO and parfum; (2) observation and understanding of the steps of the parfum production, from raw material to distillation, and study of their impacts on the quality of the parfum; (3) deep study of the multi-stage batch distillation. Among the 51 and 37 volatile compounds identified, we detected by olfactometry 19 odour compounds in EO and 7 in parfum. From the EO results of the strategy (1), a selection of odour compounds, called markers, was thus carried out applying specific filters. This procedure was validated by a classification sensorial study of bitter orange EO from different geographical origins. Observations and results of strategy (2) demonstrated that distillation has the biggest impact on the quality of the parfum. During distillation, 9 key process parameters, such as the alcoholic strength by volume and reflux rate, were continuously recorded. In parallel, markers compounds were quantified in distillate samples collected at specific control points from head to tail cuts. The behaviour of the key markers together the knowledge of their physical-chemical characteristics made it possible to better understand the current lead of the distillation. Thereby changes of distillation parameters were proposed and pilote trials were carried out in the strategy (3). In view to control and optimise the multi-stage batch distillation process, other works were focused on simulation with the BatchColumn software from ProSim®. This requires to: 1) determine the vapour-liquid equilibrium data of certain markers compounds; 2) build a thermodynamic model simulating real experimental data; 3) integrate the experimental data and the model selected in BatchColumn. With this approach, we easily represented the distillation as it was realised in the industry. Futures studies, including changes of parameters such as still composition, distillation and structure parameters, could be carried out to optimise the process and see the impact on these changes of the quality of the parfum
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Clément, Paul. "Les productions d’huile et de vin dans les Alpes-Maritimes antiques." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM3020.
Full textAbstract:
L'étude a consisté à effectuer l'inventaire, dans l'actuel département des Alpes-Maritimes, des sites archéologiques ayant produit de l'huile d'olive et du vin et à établir le catalogue des mobiliers dédiés à ces productions. A fin 2015, 70 sites ont été répertoriés, comportant 250 éléments de mobiliers appartenant principalement à des installations de pressage, ainsi qu'à quelques moulins à broyer les olives de type mola olearia, qui ont fait chacun l'objet d'une fiche. Les installations de pressage ont connu leur plus fort développement au début de l'Empire romain. Alors que la plupart des installations vinicoles cessent de produire au IIe siècle ap. J.-C. ou au début du IIIe siècle, , la production d'huile d'olive, après un ralentissement au IIIe s., est relancée au Bas-Empire, jusqu'à l'Antiquité tardive. Cette étude donne un premier aperçu global des aspects technologiques et économiques des productions d'huile d'olive et de vin dans la régionThis work presents a catalogue of archeological sites and equipments related to the production of olive oil and wine in the present Département des Alpes-Maritimes. By the end of 2015, 70 sites had been indexed, including 250 archeological items , mostly concerning pressing facilities and some crushing mills (molae oleariae); all of which have been recorded on individual data sheets. The major development of the rural press settlements was found at the beginning of the Roman Empire. While most wineries stopped producing during the 2nd century A.C. or in the early 3rd century, the production of olive oil, after a slowing down in the 3rd century, experienced a revival during the Low Empire and until the Late Antiquity. The analysis has given a global first insight into the economic and technological dimensions of olive oil and wine production in the region
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Silva, Ana Beatriz Lopes. "Bioplastics production using wood industry residues." Master's thesis, 2019. http://hdl.handle.net/10773/30125.
Full textAbstract:
Bioplastics have been the focus of worldwide research and development to
tackle the lack of biodegradability and dependence on fossil resources of most
conventional plastics. In particular, polyhydroxyalkanoates (PHA) are fully
biodegradable polymers that can be produced by microorganisms from low cost
substrates, such as wood industry residues. Bio-oil corresponds to the liquid
phase from the fast pyrolysis of lignocellulosic biomass and has high
concentrations of carboxylic acids, sugars derivatives, and others that make it a
potential feedstock for microbial processes, including PHA production. In terms
of potential substrates for the microorganisms, the water-soluble phase of
pinewood bio-oil contained mostly formic and acetic acids, as well as
levoglucosan and other sugar derivatives. The latter were converted into Dglucose and D-mannose through acidic hydrolysis.
In this work, the production of PHA by Cupriavidus necator and Pseudomonas
GL01 was studied using pinewood bio-oil from fast pyrolysis as substrate.
The preliminary flask assays were performed with glucose and acetic acid to
assess their consumption by C. necator DSM 531 and DSM 545, which revealed
that the strain DSM 545 was more efficient in using glucose, thus it was chosen
for the tests with bio-oil.
Several concentrations of hydrolysed bio-oil (HBO) and medium compositions
were tested for C. necator DSM 545 to sort the optimal concentration for PHA
production. These assays revealed that this strain was not able to use glucose
in HBO. Nevertheless, the best medium for C. necator DSM 545 was composed
of 9% (v/v) of HBO in the supplementary medium 2, with NaHCO3, FeCl3 and
di-ammonium citrate.
The bioreactor fed-batch assay performed with the selected medium composition
and subsequent HBO pulses of 4.5% (v/v) resulted in a total cell concentration
of 1.04 g L
-1
, with 3.8% of P3HB-(10%)3HV and volumetric productivity of 0.83
mg L-1 h
-1
, after 36 hours.
Pseudomonas GL01 showed a better growth and PHA production in 9% (v/v)
HBO, resulting in 1.62 g L-1 of cell concentration, with 33% of PHA, after 48 h. A
fed-batch reactor assay was performed with 9% (v/v) of HBO and subsequent
pulses of 4.5% (v/v), resulting in biomass concentration of 1.66 g L-1
.
This work demonstrated, for the first time, the utilization of hydrolysed pinewood
bio-oil by C. necator DSM 545 and Pseudomonas GL01 for the production of
PHA as a potential route to the valorisation of forest residues.Os bioplásticos têm sido alvo de investigação e desenvolvimento para solucionar a recalcitrância e dependência de recursos fósseis, características dos plásticos convencionais. Em particular, os poli-hidroxialcanoatos (PHA) são polímeros biodegradáveis que podem ser produzidos por microrganismos a partir de substratos de baixo custo, como os resíduos da indústria da madeira. O bio-óleo corresponde à fase líquida resultante do processo de pirólise rápida de biomassa lenhocelulósica e tem elevadas concentrações de ácidos carboxílicos, derivados de açúcares e outros, que o tornam uma potencial matéria-prima para processos microbianos, tais como a produção de PHA. Em termos de potenciais substratos para os microrganismos, a fase aquosa do bio-óleo continha sobretudo ácido fórmico e ácido acético, bem como levoglucosan e outros derivados de açúcares. Estes últimos foram convertidos em D-glucose e Dmanose através da hidrólise ácida. Neste trabalho estudou-se a produção de PHA por Cupriavidus necator e Pseudomonas GL01 usando bio-óleo de pirólise rápida de madeira pinho como substrato. Para avaliar o consumo de glucose e ácido acético por C. necator DSM 531 e DSM 545 realizaram-se ensaios preliminares em Erlenmeyer com meio sintético. Verificou-se que a estirpe DSM 545 usou glucose com maior eficiência e, por isso, foi escolhida para os testes com bio-óleo. Para escolher a concentração ótima de bio-óleo hidrolisado (HBO) para a produção de PHA por C. necator DSM 545, testaram-se várias concentrações, bem como diferentes composições do meio. Estes ensaios revelaram que esta estirpe não utilizava a glucose presente no HBO. Ainda assim, o meio que resultou em melhores resultados era composto de 9% (v/v) de HBO em meio suplementar 2, com a adição de NaHCO3, FeCl3 e citrato de amónia. Finalmente realizou-se um ensaio em fed-batch em biorreator com o meio selecionado e pulsos de HBO de 4.5% (v/v) que resultaram numa concentração celular de 1.04 g L-1 , com 3.8% de P3HB-(10%)3HV e uma produtividade volumétrica de 0.83 mg L-1 h -1 , após 36 horas. Pseudomonas GL01 demonstrou melhor crescimento e produção de PHA na concentração de 9% (v/v) de HBO, resultando numa concentração celular de 1.62 g L-1 , com 33% de PHA, após 48 h. O ensaio fed-batch em reator foi feito com 9% (v/v) de HBO e pulsos subsequentes de 4.5% (v/v), resultando na concentração celular de 1.66 g L-1 . Este trabalho demonstrou pela primeira vez a utilização de bio-óleo hidrolisado de madeira pinho por C. necator DSM 545 e Pseudomonas GL01 para a produção de PHA, como uma potencial oportunidade de valorização de resíduos da indústria da madeira.
Mestrado em Biotecnologia
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Albarrak, Abdulmajeed Barrak. "Time series analysis of Saudi Arabia oil production data." 2013. http://liblink.bsu.edu/uhtbin/catkey/1739765.
Full textAbstract:
Saudi Arabia is the largest petroleum producer and exporter in the world. Saudi Arabian
economy hugely depends on production and export of oil. This motivates us to do research on oil
production of Saudi Arabia. In our research the prime objective is to find the most appropriate
models for analyzing Saudi Arabia oil production data. Initially we think of considering
integrated autoregressive moving average (ARIMA) models to fit the data. But most of the
variables under study show some kind of volatility and for this reason we finally decide to
consider autoregressive conditional heteroscedastic (ARCH) models for them. If there is no
ARCH effect, it will automatically become an ARIMA model. But the existence of missing
values for almost each of the variable makes the analysis part complicated since the estimation of
parameters in an ARCH model does not converge when observations are missing. As a remedy
to this problem we estimate missing observations first. We employ the expectation maximization
(EM) algorithm for estimating the missing values. But since our data are time series data, any
simple EM algorithm is not appropriate for them. There is also evidence of the presence of
outliers in the data. Therefore we finally employ robust regression least trimmed squares (LTS) based EM algorithm to estimate the missing values. After the estimation of missing values we
employ the White test to select the most appropriate ARCH models for all sixteen variables
under study. Normality test on resulting residuals is performed for each of the variable to check
the validity of the fitted model.ARCH/GARCH models, outliers and robustness : tests for normality and estimation of missing values in time series -- Outlier analysis and estimation of missing values by robust EM algorithm for Saudi Arabia oil production data -- Selection of ARCH models for Saudi Arabia oil production data.
Department of Mathematical Sciences
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StaryuTansiri and 張大悅. "Bankruptcy Prediction Model for U.S Oil Exploration and Production Industry: Study of Financial Data." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/39dkv9.
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Roodt, Miné. "The design of an Olive Oil Production Facility in the Touws River Valley." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001509.
Full textAbstract:
M. Tech. Architecture (Professional)At present the South African olive oil industry is highly dependent on international imports due to local olive oil producers being unable to meet the local demand. The need for extra virgin olive oil has increased each year since people have become more aware of the health benefits of the product. This dissertation documents the design of an olive oil production facility near the foothills of the Draaiberg mountain range in the Touws River valley. Situated in close proximity to the Touws River railway station, the proposed architectural intervention responds to the current situation of neglected railway towns through the implementation of agri-tourism in the area. Public interest creates a platform for the market to educate the broader public about health benefits, which has caused a gradual, growth in the olive oil industry. This in turn shows that olive oil farms need a public interface, such as an information centre, a shop and tasting room to entice the consumer and create awareness of the quality level of olive oil South Africa has to offer. The aim of this thesis is to design an olive oil production facility, focusing on the production of extra virgin olive oil and relevant alternative products. The facility will not only function as an agricultural olive press for a private farming concern, but will also act as a community press facility to allow for continuous growth in the olive industry. One of the design objectives is to create a space for information and social interaction. The main building's size is informed by the size of the productive landscape and formulas were used to calculate the volume of oil produced per hectare. The production process can be followed by the visitor, giving rise to a linear building typology.
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Willcott, Ashley Paul. "Reducing the risk in drilling production wells : a multidisciplinary approach /." 2005.
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Mahlangu, Bafana Petrus. "The impact of the maintenance management system on production output and profitability at the Petroleum oil and gas corporation of South Africa (PETROSA) GTL Refinery." Diss., 2014. http://hdl.handle.net/10500/14622.
Full textAbstract:
The purpose of this study was to investigate the impact of the maintenance management system (MMS) on production output and profitability (PO&P) at the Petroleum Oil and Gas Corporation of South Africa (PetroSA) GTL Refinery as a source of competitive advantage. State-Owned Companies and, or more specifically the PetroSA GTL Refinery must maintain its strategic importance for government fuel security but, at the same time, it must compete against private refineries in terms of achieving high production volumes, maximising profitability and to maintain its stake of 6.5% of the available production capacity. The literature review for this study suggested that the maintenance management system (MMS) impacts positively on production output and profitability (PO&P). The MMS has a tremendous influence on PO&P at the PetroSA GTL Refinery. Using a quantitative research design, cross-sectional research survey and the Maintenance Scorecards (MS) assessment tool, this study was conducted on six areas of the PetroSA GTL Refinery. Two population groups, namely production and maintenance groups participated in the survey. Fifty-six respondents belonged to the maintenance group and thirty-eight respondents belonged to the Production Group. All the Maintenance and Production Group respondents completed the MS questions designed to fit the characteristics of these population groups. Correlation analysis in terms of the means, standard deviations, gap analysis, Pearson product moment correlation coefficient (r) as well as the coefficient of determination (R²) was used to analyse the data. The findings of the study indicated a moderate positive linear correlation between the MMS and PO&P. Recommendations based on the findings were tabled in chapter 7 to improve and enhance production perspective (asset health gap), safety perspective (asset prioritisation gap) and the learning and growth perspective (skills and working condition gap).Business Management
M. Com. ((Business Management)
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Aroge, Olatunde O., Nejat Rahmanian, J. Eduardo Munive-Hernandez, and Reza Abdi. "Decision-making model for supply chain risk management in the petroleum industry." 2020. http://hdl.handle.net/10454/17959.
Full textAbstract:
YesThe purpose of this paper is to develop a decision-making model for supporting the management of risks in supply chain. This proposed model is applied to the case of the oil industry in Nigeria. A Partial Least Square Structural Equation Model (PLS-SEM) is developed to measure the significance of the influence of risk management strategy on mitigating disruption risks and their correlations with the performance of activities in the supply chain and relevance of key performance measures in the organisation. The model considered seven aspects: behavioural-based management strategy, buffer based oriented management strategy, exploration and production risks, environmental and regulatory compliance risks, geopolitical risks, supply chain performance, and organisational performance measures. A survey questionnaire was applied to collect data to populate the model, with 187 participants from the oil industry. Based on the PLS-SEM methodology, an optimised risk management decision-making method was developed and accomplished. The results show that behavioural-based mechanism predicts the capacity of the organisation to manage risks successfully in its supply chain. The approach proposed provides a new and practical methodology to manage disruption risks in supply chains. Further, the behavioural-based mechanism can help to formulate risk management strategies in the oil industry.
The full-text of this article will be released for public view at the end of the publisher embargo, 12 months from first publication date.
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Klein, Oliver [Verfasser]. "Erosioncorrosion testing of materials for the use as screw materials in twin screw multiphase pumps in the oil and gas production industry / presented by Oliver Klein." 2007. http://d-nb.info/985093609/34.
Full text
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Lee, Hung-Yuan, and 李宏遠. "Optimization of Manufacturing Parameters for Safe Part Spot-welding of Automobile Industry Using Lean Production and Six Sigma Methodology ―An Application to Car Cross member and oil tank parts." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/36271862476514807489.
Full textAbstract:
碩士元智大學
工業工程與管理學系
97
This study implements the lean and six-sigma DMAIC management tool to analyze and improve the loose problem of spot welding of auto cross member and the oil tank. In welding machine configuration, electric current, machine pressure, and welding time are critical factors of spot welding. The final welded part is verified by destructive tests to see if it conforms to the specification or standard. The auto cross member and the oil tank parts directly involve human safety and are considered the safety parts by auto manufacturer. If loose welding problem happens and causes injury or casualty of passengers, the manufacturer would face strong pressure for a recall. It not only harms manufacturer’s reputation, but the manufacturer may also incur huge liability for damages. Therefore, almost all auto manufacturers put high emphasis on the safety parts. The quality of spot welding of #3 cross member and the oil tank of certain auto type is studied. By the design of experiment, the optimal configuration is achieved to reduce the loose problem of spot welding.
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Bukhari, Abdulwahab Abdullatif. "Optimization of production allocation under price uncertainty : relating price model assumptions to decisions." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-3780.
Full textAbstract:
Allocating production volumes across a portfolio of producing assets is a complex optimization problem. Each producing asset possesses different technical attributes (e.g. crude type), facility constraints, and costs. In addition, there are corporate objectives and constraints (e.g. contract delivery requirements). While complex, such a problem can be specified and solved using conventional deterministic optimization methods. However, there is often uncertainty in many of the inputs, and in these cases the appropriate approach is neither obvious nor straightforward. One of the major uncertainties in the oil and gas industry is the commodity price assumption(s). This paper investigates this problem in three major sections: (1) We specify an integrated stochastic optimization model that solves for the optimal production allocation for a portfolio of producing assets when there is uncertainty in commodity prices, (2) We then compare the solutions that result when different price models are used, and (3) We perform a value of information analysis to estimate the value of more accurate price models. The results show that the optimum production allocation is a function of the price model assumptions. However, the differences between models are minor, and thus the value of choosing the “correct” price model, or similarly of estimating a more accurate model, is small. This work falls in the emerging research area of decision-oriented assessments of information value.text
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Mailula, Douglas Tlogane. "Protection of petrolium resources in Africa : a comparative analysis of oil and gas laws of selected African States." Thesis, 2013. http://hdl.handle.net/10500/13610.
Full textAbstract:
The resource curse is a defining feature of the African content. Despite vast resource wealth, Africa remains the poorest and most underdeveloped continent in the world. The aim of this study is to conduct a comparative analysis of the primary laws regulating of oil and gas exploration and product activities in Angola, Nigeria and South Africa in order to determine their effectiveness in protecting the continent's depleting petroleum resources. Different regulatory models apply to Angola, following the Norwegian carried-interest model, Nigeria, where a British discretionary model has been retained, an a South africa, where a unique model has been developed. The comparison is conducted by analysing and comparing these different regulatory systems in terms of legal frameworks; the legal nature of the regulatory systems; ownership of the oil and gas resources; legal nature of licenses; organisational or institutional structures; fiscal systems; local communities benefits from these proceeds of oil and gas resources; local content; state/government participation arrangements; and environmental challenges. The study evaluates the effectiveness of these regimes by examining the extent to which they recognise and enforce state ownership of he oil and gas resourcs in situ; recognise and enforce the doctrine of Permanent Sovereignty over Natural Resources (PSNR); protect the environment; how they provide for institutional capacities for the management of resources; and the protection of local communities from exploitation and abuse by recognising their rights to benefit from revenues derived from these resources. An overall assessment of the three systems reveals that there is no ideal model for oil and gas regulation in Africa. The Norwegian model might well be considered an ideal model if it was applied with care and correctly in Angola. The study hopes to gain practical importance for the proper regulationof the oil and gas industries' upstream activities in Africa and assist governments of the selected jurisdictions in their policy revisions, as some recommendations are made.Economics
LLD.
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Bates, Christopher Allen. "Local resilience, canola cropping, and biodiesel production." Thesis, 2006. http://hdl.handle.net/1957/28361.
Full textAbstract:
New technology may have negative, as well as positive, effects on a sociocultural
system. Biodiesel is growing in popularity as a fuel alternative that addresses global
warming and reduces dependency on petroleum. The biodiesel innovation fits well
into the existing behavioral infrastructure of Linn and Benton Counties, Oregon. The
introduction of this technology fuels two community-based biodiesel initiatives: the
Corvallis Biodiesel Cooperative (CBC) and the OSU Biodiesel Initiative (OBI).
However, the increasing demands for biodiesel increases the demand for vegetable oil.
Canola is the most efficient oil producing crop suggested for the southern Willamette
Valley of Oregon. Canola cropping fits into the behavioral infrastructure of local
grass seed growers' tradition. However, canola cropping presents outcrossing risks to
neighboring specialty seed and organic growers. This calls into question the resilience
and sustainability of canola cropping. The decisions made about biodiesel production
and oilseed cropping will impact the future environment, culture, political autonomy,
and sustainability of this local community. The dominant values that serve this community will determine the resilience of culture and identity that is maintained or
emerges in the face of social-ecological challenges and technological innovations.
The research methodology includes interviews, participant observation, and
informational media to triangulate data. These methods serve to inform an integrated
framework of holistic, values analysis, social-ecological, and cultural materialism
theoretical approaches. The holistic approach provides the behavioral components and
the values analysis approach provides the mental components that are integrated into a
cultural materialism framework. These components are evaluated by the social-ecological
approach. Evaluation of the CBC and OBI suggests that values play a
greater role in cultural materialism than previously believed. A new theoretical
perspective emerges to explain resilience and causal effects. The social-ecological
approach, illustrated by panarchy theory, is also integrated into the cultural
materialism approach. The integration of the four theoretical approaches, and the
emergence of a new theoretical perspective, provides a means to explain resilience and
sustainability for the CBC and OBI. This integrated approach also examines three
potential paths of resilience and sustainability for the grass seed, specialty seed, and
organic growing traditions.
Path A predicts long-term resilience and sustainability for grass seed growers and
canola cropping, but collapse for the specialty seed and organic growing traditions.
Path B predicts that a proposed regulated canola cropping compromise will only
prolong the inevitable collapse of the specialty seed and organic growing traditions.
Along both Paths A and B, diversity is lost from the sociocultural system as specialty
seed and organic growing traditions decline. Canola cropping increases the potential
for energy security, but food security is reduced. Path C suggests how to maintain the
current sociocultural system of grass seed, specialty seed, and organic growing
traditions and promote long-term resilience and sustainability.Graduation date: 2006
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Matyáš, Petr. "Využití ontologií k modelovaní flexibilní výroby v Průmyslu 4.0." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-438033.
Full textAbstract:
The topic of this Master thesis is ontologies and the methods of their design using OWL. The thesis aims to provide a manual on the design of ontologies and demonstrate the use of this manual in the environment of Industry 4.0. The actual manual is preceded by chapters presenting the used semantic web technologies from a state-of-the-art point of view. The work is concluded by the author's evaluation of the suitability of the use of given technologies. 1