Throughout the 1960s and the early 1970s, almost all developing countries pursued an import substitution policy that sought to develop a domestic manufacturing sector. At the same time, these governments carried out nationalisation programmes based on the view that foreign ownership of industry and assets was a drain on their wealth and hindered the economic development of the nation. Some developing countries saw foreign investment as a continuation of their colonial past and wanted to move away from it. As a result, there was a natural dislike and distrust of foreign investment. However, in the last three decades there has been a sea change in government opinions regarding foreign investment, and now many countries are actively encouraging it. In fact, some governments have paid financial incentives reaching as much as US$150,000 per employee to foreign companies to attract them to their country. These financial incentives are paid on the basis that governments believe that inward investment has positive effects on the economy, the most important of which is transfer of technology. Through improved technology a country can significantly enhance its competitiveness in the global marketplace leading to increased economic growth. With economic growth countries can also improve their social indicators such as education, health etc. Therefore, technology transfer from inward investment is viewed as the catalyst to change within a country. Despite the widespread popularity of governments seeking to attract inward investment there is no conclusive evidence that it leads to positive spillover effects in the form of technology transfer. This study seeks to fill this gap in the current body of academic knowledge, using the case of a small resource abundant country with a low population, such as the UAE, using both qualitative and quantitative research methods. The primary data was obtained through a detailed questionnaire, and provides an in depth approach to understanding the issue of technology transfer for the UAE; while the secondary data, obtained from UNCTAD and the World Bank, is more macro level in nature. The macro level data indicate that certain factors in the UAE are conducive to technology transfer taking place. The primary data seek to interrogate this for the case study presented in this study. In doing so, the primary and secondary data sets are connected in so far as to provide cross reliability through the identification of commonalities and differences of results. This study aims to provide understanding on whether FDI does indeed lead to a transfer of technology from the overseas firm into the host country economy. Understanding such a link within an academic framework allows this study to arrive at relevant policy recommendations that can be taken up by policy makers in similar contexts. The prior literature has shown that FDI both flows into countries that have proven economic growth and that FDI leads to economic growth, and therefore these factors are interrelated. This study has found that FDI can play an important role in filling domestic gaps in investment and also spur economic growth. This study develops a simultaneous regression to test the existence of a joint relationship between economic growth, which is a proxy for technology transfer, and FDI. In the case of host country factors a linear regression model is developed and tested. At a more micro level this study examined the case of Tawazun Economic Council, a high technology organisation that operates within the aerospace and defence industry cluster, in order to understand whether its investments have led to any real impact as far as technology transfer is concerned. The Tawazun Economic Council is a project with a total investment of US$60 billion, and as such allows this research to capture the impact of technology transfer in an enhanced cluster that has aerospace and defence as its core theme. The aerospace and defence sectors have leading edge technology, and therefore a high probability of technology transfer taking place. Through a survey of senior managers within the organisation responsible for strategy development, this study also found that technology transfer has taken place due to the very sophisticated off-take contracts that have been negotiated with buyers and technology suppliers. However, none of these technologies have been applied outside their narrow aerospace and defence usage. In addition, if capital abundant countries wish to capitalise on the technology transfer benefits from FDI then, future government policies should seek to protect intellectual property rights. The novel contribution of this study is that it has identified factors that are important for technology transfer from FDI to take place in capital abundant countries that have a small population. As such, the research has not only increased the current body of knowledge in this area, but has sought to provide policy recommendations that could help in increasing the level of FDI-based technology transfer in developing countries, with a particular emphasis on capital abundant and low population countries.

Thesis (MA (Political Science))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: The central research question of this study concerns the level of political risk that the Ogaden region of eastern Ethiopia poses for companies operating in, or intending to operating in the oil and gas industry of that region. The aim is to answer that question as well as two further subquestions. The first sub-question concerns issues pertaining to the factors and indicators that would be included in a political risk model specifically envisaged for the oil and gas industry, and the second concerns the practical application of political risk as a decision-making and management tool for investors. It is practically impossible to gather all the relevant information when undertaking a political risk analysis, to know all the unknowns. It would take an immense amount of time to attempt such an analysis and the costs would be exorbitant. In creating a political risk model specific to the oil and gas industry, a methodological approach is adopted to streamline this process. It is the aim of this research study to engage in this streamlining process; selecting the most salient variables that can then be incorporated into an industry specific model, which will yield realistic and practical results. In terms of the political risk indication, the political risk analysis of the Ogden returned a score putting the region in the high risk indication bracket. In terms of investment indication, the score indicates a moderate to high risk for investments the oil and gas industry. This does not mean that investors should stay away from the region. A high degree of risk, if sufficiently managed, can result in increased opportunities for higher returns for the investor. Beyond the traditional approaches to risk management there are other avenues that the investor may choose to follow, such as a commitment to engage with local stakeholders. These initiatives should extend beyond mere financial incentives to a more genuine form of community interaction, with extensive local consultation. Strategies, policies, and procedures should be developed that ensure that companies engage productively with NGOs and the media at local levels in order create a suitable environment for all involved. Political risk is more than simply providing a report with a risk rating tagged to the end of it. It should be a fully integrated part of the investor’s strategy, essential to the continued success and profitability of the investment. / AFRIKAANSE OPSOMMING: Die sentrale navorsingsvraag van hierdie studie handel oor die vlak van politieke risiko wat maatskappye wat besigheidsbelange in die Ogaden streek van oos Ethiopië het, of wat beplan om besigheidsbelange in die olie- en gasbedryf te begin, in die gesig staar. Die doel is om die vlak van politieke risiko te identifiseer en om verder twee sub-vrae te beantwoord. Die eerste sub-vraag is om die faktore en indikatore te identifiseer wat deel sal vorm van ‘n politieke risikomodel, spesifiek vir die olie- en gasbedryf en die tweede handel oor die praktiese aanwending van politieke risiko as ’n besluitnemings- en risikobestuur-instrument vir beleggers. Dit is prakties onmoontlik om alle relevante informasie in te samel wanneer ’n politieke risiko-analise gedoen word, of om bewus te wees van al die onbekende aspekte. Dit sal ‘n ongelooflike lang tydperk neem asook die kostes sal uiters hoog wees. Wanneer ‘n politieke risikomodel spesifiek vir die olie- en gasindustrie gebou word, word ’n metodologiese benadering om die proses te vergemaklik gevolg. Dit is die doel van hierdie studie om by te dra tot die vereenvoudiging van hierdie metodologiese proses deur die mees prominente aspekte te selekteer wat gevolglik geïnkorporeer kan word in ‘n industrie spesifieke model. Die model sal beide realistiese en praktiese resultate bied. Ten opsigte van die skaal vir belegging en politieke risiko indikasie, het politieke risiko analise van die Ogaden gedui op ’n hoë risiko indikasievlak. Vir belegging dui die risikovlak op ’n medium tot hoë risikovlak vir die olie- en gasindustrie. Dit beteken nie dat beleggers die area noodwendig moet vermy nie. Indien ’n hoë risikovlak aanwesig is, kan suksesvolle bestuur steeds verhoogde winsgeleenthede vir die belegger verseker. Behalwe vir die tradisionele benaderings tot risikobestuur en risikomitigasie is daar ook ander moontlikhede wat die belegger kan volg om die vlak van risiko te verlaag, soos ’n ooreenkoms om saam met plaaslike belanghebbendes te werk. Sulke meganismes moet verby finansiële belonings strek en ‘n opregte vorm van gemeenskapsinteraksie aanneem wat net kan gebeur deur middel van uitgebreide plaaslike konsultasie. Strategie, beleid en prosedure moet ontwikkel word, wat sal verseker dat maatskappye optimaal saamwerk met nie-regerings-organisasies en die media op plaaslike vlak. Dit sal verseker dat ’n geskikte omgewing vir alle partye geskep word. Poltieke risiko is veel meer as net risiko-evaluasie waar ’n vlak van risiko verskaf word. Dit behoort ten volle deel te wees van die belegging en is essensieël tot die sukses en winsvlak vir die belegger.

Much of literature is predicated upon the assumption that learning occurring inside the workplace is related to developing expertise associated with the tasks for which the individual is employed and has a background in. This research investigates those individuals who acquire expertise in other disciplines and how the application of that additional expertise changes and enhances the individual and the organisation. By combining perspectives across the disciplinary boundaries and developing multidisciplinary expertise, these individuals demonstrate better methods of achieving business objectives, leading to faster, more imaginative solutions, more frequently, and with significantly less effort. The literature review commenced with defining “multidisciplinary” before addressing communities that cluster around disciplines such as professional societies and Communities of Practice, Aspects of organisational, team and “learning by participation” (Ashton, 2004) literature were also considered. The study took an inductive approach using an ethnographical perspective to data collection and analysis to achieve its aim of determining the existence of multidisciplined individuals and how they acquire additional disciplines. The study used interviewing as its primary method yielding both qualitative and quantitative data from a cross sectional sample set inside a medium sized oil and gas consultancy offering technical and management advice. The disciplines inside the case organisation were mapped to ascertain boundaries where the richest learning opportunities lie. Measuring learning across the disciplines confirmed the existence of multidisciplined individuals with evidence pointing towards the integrated multidisciplined team being the ideal learning environment. The study was able to use Threshold Concepts (Meyer and Land, 2003) to demonstrate the multidisciplinary individual development process. Moreover, having examined the social interaction learning processes the potential negative impacts of Communities of Practice in encouraging this type of multidiscipline approach was highlighted. The study concluded that developing multidisciplined individuals was worthwhile but required organisations to be willing to provide the appropriate platform for such learning by more adventurous individuals who held the appropriate underlying abilities required by the additional discipline (s).

The increasing commercial and social pressure for business leaders to act in a socially responsible manner is undermined by the lack of standards in Corporate Social Responsibility (CSR) legislation, auditing, indexing, and reporting. Moreover, CSR research is fragmentary and often missing empirical corroboration. It lacks synthesis, uses CSR concepts and terms ambiguously, and is inconsistent in the identification of CSR practices, its formulation and institutionalisation. This study addresses these gaps and discontinuities by first synthesising a range of theories into an explanatory framework. This framework provides the pre-understanding for the collection and analysis of qualitative data drawn from the UK oil and gas industry. The findings highlight the heterogeneous and dynamic nature of CSR operationalisation. The analysis emphasises the dependence of CSR strategy formulation on business leaders’ personal beliefs and biases. These beliefs are tempered by balancing shareholders’ interests and stakeholders’ expectations, and are affected by the global (in the case of corporations) or the local (in the case of corporate subsidiaries and small-medium size enterprises) contexts. These appear to be the main factors influencing leaders’ CSR decisions. The findings also demonstrate a number of challenges that business leaders face when reconciling personal, organisational, industry, global, and societal values and ethical beliefs; and balancing traditional organisational goals, such as profit maximisation, with increased stakeholder empowerment in granting social legitimacy. In addition, the exploration of CSR institutionalisation reveals different approaches in corporate subsidiaries, which fluctuate between the CSR practices of corporate headquarters and those of SMEs. The analysis of these findings results in a proposed hybrid model of CSR Institutionalisation in the oil and gas industry, with a breakdown of identified factors affecting corporate, SMEs’, and subsidiaries’ leaders’ CSR decisions. This thesis contributes to the literature by proposing a number of concepts, including: CSR Nexus and CSR Dynamics models as conceptual syntheses of the theoretical framework; an empirically corroborated CSR Operationalisation model within the studied organisations suggesting a nonconformance with extant CSR research; an observed matrix of business leaders’ CSR Motivations highlighting their diversity in corporations, SMEs, and corporate subsidiaries. Finally, a conceptual CSR Convergence model is proposed, which outlines a comprehensive approach to CSR education and implementation. In a weak and ambiguous CSR regulation and legislation environment, this study endeavours to bridge the gap between CSR research, business organisations, and stakeholders by contributing to the enhancement of CSR understanding, education, and implementation.

Investors, stock exchanges and financial regulatory institutions can be used as strong levers for making firms accountable for achieving sustainable operational performance and not just maximizing profits. The objective of this research study is to enhance the quantitative tools available to stakeholders for evaluating relative operational performance of firms, thereby encouraging the financial investors to base their portfolio investment decisions on the basis of sustainable operational performance of firms. The study reviews the existing literature on evaluating relative operational performance of firms on sustainability metrics and proposes multi-level multi criteria decision making (MCDM) quantitative methods for measuring the same. The research work demonstrates the research framework proposed in the study by evaluating the 2014 Sustainable Operational Performance of firms in the oil & gas sector. The reason for choosing the oil & gas sector for this case study is in view of the relative large ecological and social impact which this industry has on different stakeholders. Due to the same reasons, the oil & gas sector is a bit more advanced in terms of its sustainability performance reporting standards. The review of past literature and the sustainability reports of firms for the year 2014 is initially used to develop the construct for measuring the firm operational performance on three pillars of TBL i.e. for the ecological, social and economic dimensions. / February 2017

[pt] A quebra do monopólio na exploração do petróleo em território brasileiro passou a exigir maior controle metrológico dos sistemas de medição aplicados ao setor. O objetivo da presente pesquisa de mestrado em metrologia relaciona-se à caracterização das demandas qualificadas por serviços de metrologia. A motivação para desenvolvimento do trabalho tem origem na entrada em vigor da Portaria Conjunta no 1 ANP-INMETRO, que promoveu estudos e pesquisas relacionados à ciência das medições e incentivou uma nova cultura de medição no Brasil. O trabalho se desenvolveu no contexto do aumento da demanda por petróleo no mundo - reflexo do crescimento acelerado das economias de países emergentes e com impacto no preço desta commodity - o que passou a requerer sistemas de medição com baixos níveis de incerteza e maior exatidão. A metodologia utilizada inclui: (i) análise do ambiente de exploração e produção de petróleo e gás natural no Brasil; (ii) estudo da legislação aplicável e (iii) identificação das tecnologias de medição e das melhores práticas internacionais de medição de vazão. Como resultado foram identificadas as demandas por metrologia consideradas mais relevantes baseadas na experiência de medição da Petrobrás, notadamente da sua Unidade de Negócios da Bacia de Campos (UNBC). A partir da percepção das demandas identificadas, o trabalho propõe uma sistemática para identificar tipos de tecnologias de medição e de medidores adequados às necessidades metrológicas do setor de petróleo e gás natural visando nortear estudos de viabilidade técnica e econômica. O trabalho contribuiu para o avanço do entendimento da legislação e do conhecimento da medição no setor de petróleo e gás e hoje já subsidia a Petrobras no equacionamento da compatibilização da oferta com a demanda de serviços. Como conclusão sinaliza a vulverabilidade metrológica no setor. / [en] The breakup of the monopoly of crude oil exploration in Brazil has led to the need for a better assessment of measurement instruments. Brazil, which recently announced massive oil finds -the largest discovery in the West Hemisphere in the last three decades-, requires better national metrology infrastructure. The objective of this M.Sc. dissertation is to characterize qualified demands for basic metrology services. And its motivation stems from a new bill (Portaria Conjunta ANP-INMETRO) that prompted research and development programmes in the realm of metrology and gave rise to a new culture of measurement in Brazil. The research work was carried out in the context of a sharp increase in oil demand -particularly from India and China- in recent years. High oil prices driven by rising demand now call for measuring devices with low level of measurement uncertainty and greater accuracy. The methodology used included: (i) the analysis of oil and gas exploration environment in Brazil, (ii) the study of applicable legislation and (iii) the application of international best practices in flow measurement. Relevant metrology demands were identified -this was the major result of the research project- based on Petrobras`s own experience, notably from its Business Unit in the Campos Basin, in the state of Rio de Janeiro. The work suggest a procedure to identify the various types of measuring schemes and meters most adequate for the oil industry and contributes to a better understanding of the applicable legislation. In addition, it helps Petrobras to balance supply and demand for metrology services. As a conclusion, the work highlights the vulnerability of metrology in the sector.

Gas injection, the fastest growing tertiary oil recovery technique, holds the promise of significant recoveries from those depleted oil reservoirs around the world which fall into a pressure range of (50-200) bar mainly. However, its application with the usual techniques is restricted by the need for various surface facilities such as enormous gas supply and storage. The only surface facility that downhole gasification of hydrocarbons (DHG) requires, on the other hand, is a portable electricity generator. DHG consists in producing inert gases, H2, CO, CO2 and CH4 through the steam reforming reaction of a part of the produced oil in a gasifier-reformer reactor positioned alongside the producer well in the reservoir. The gases, mainly H2 -the most effective displacing gas among produced gases- are injected into a gas cap above the oil formation, to increase oil recovery through a gas displacement drive mechanism. So far, DHG has only been tested under laboratory conditions using methane, pentane/reservoir gas and naphtha/reservoir gas as feedstock at conditions of reservoir pressure up to 130 bar. The studies varied reaction temperature, steam to carbon (S/C) ratio, catalyst types and catalyst loading in the gasifier-reformer reactor of a small pilot scale rig. These experimental studies demonstrated that pressure is one of the main factors influencing the effectiveness of the DHG process. From this starting point, the present investigation was directed at extending the pressure range up to 160 bar in the gasifier-reformer reactor using a naphtha fraction as feedstock in order to investigate whether the conversion and H2 concentration in produced dry gas can be maintained at acceptable levels under conditions of high pressure. To this end, experimental studies were carried out within the laboratory using the existing DHG rig on the small pilot scale, which was successfully commissioned and revamped for the purposes of this study. Initially, the investigation focused on exploring operating conditions, namely, steam to carbon (S/C) ratio, length of the gasifier-reformer reactor tube/ catalyst loading and the relative performance of two different catalysts. Subsequently, experiments on shutdown/start up cycles followed by variation of temperature were performed to simulate the effect of sudden electrical disruptions that usually occur in field operations. Experimental results using naphtha at pressure from 80 to 160 bar at 650 ºC, S/C= 6 achieved total feedstock conversion, no coke deposits and, most importantly, high H2 concentration in the produced dry gas (56-63 vol. % plus other gases). The best result was obtained with a crushed HiFUEL R110 catalyst (40-60 wt. % of NiO/CaO.Al2O3) and a reactor tube length of 72 cm, but the results with a C11-PR catalyst (40 wt. % of NiO/MgO.Al2O3) and a reactor tube length of 30 cm were similarly favourable. These results were supported by results of a numerical DHG model which indicated total feedstock conversion and values of H2 around 67 vol. % (using n-heptane as model surrogate). The results suggest that the DHG process is technically feasible at the pressure values studied, perhaps up to 200 bar where there are many hundreds of depleted, light oil reservoirs, especially in North America and other parts of the world below that pressure value.

A utilização de fontes renováveis em plataformas de produção de petróleo e gás natural atualmente é baseada em aplicações experimentais e esparsas. Contudo, a aplicação dessas fontes de forma estruturada permite aumentar a confiabilidade de sistemas críticos e diminuir a emissão de poluentes. Com foco nos projetos para desenvolvimento de produção dos campos petrolíferos do pré-sal no Brasil, esse trabalho apresenta uma proposta de metodologia para avaliação de utilização de fontes renováveis de energia elétrica em plataformas marítimas de produção de petróleo e gás natural. Para isso, foi desenvolvido um fluxograma de projeto e uma metodologia multicritério. O fluxograma de projeto determina as etapas e atividades requeridas para uma adequada aplicação da metodologia de avaliação. Enquanto a metodologia multicritério busca captar os valores e percepções de projetistas, operadores e mantenedores a respeito de características dos dispositivos conversores de energia renovável. A metodologia proposta é aplicada em um caso de plataforma tipo fixa e em outro caso de plataforma tipo FPSO. Esse segundo caso representa características físicas das embarcações utilizadas para desenvolvimento da produção na camada pré-sal, assim como as características ambientais e geográficas de locação. Os resultados permitem comparar as potencialidades de captação de energia renovável, assim como permitem identificar as tecnologias com estado da arte mais adequado para essa aplicação específica. Outras conclusões são apresentadas, como a estimativa de emissão de CO2 evitada e as tecnologias verdes com atratividade para desenvolvimento no âmbito nacional. / Nowadays renewable sources applications at offshore petroleum and natural gas production platform are based at experimental and particular cases. However, a structured design system can increase critical systems reliability and decrease pollutant emissions. Focuses at new developing production projects at Brazilian presalt petroleum fields, this work suggest a new methodology to valuate renewable source applications and solutions at offshore petroleum and natural gas production platform. Based at this purpose, a design project workflow and a multicriteria methodology were developed. Technical activities required to a suitable valuation and sequential steps are detailed at project workflow. The multicriteria methodology simulates values and feelings of designers, operators and technical maintenance about renewable source converters appliances features. This proposed methodology is applied at two specific cases, a fixed platform and FPSO platform. The second one represents physical characteristics of pre-salt production units as well environmental and geographic features of site location. The comparison of results indicates potential renewable energy flows to be harvested and the technologies of renewable sources with high attractiveness for this offshore application. Other conclusions are showed, as quantification of avoided carbonic gas emitted and green technologies that should be produced in Brazil.

Drill String dynamic behaviour during the oil drilling operation, was a major source for the failure of the Bottom Hole Assembly (BHA). The behaviour produced torsional vibration, which underpins the stick slip phenomena. Besides threatening the safety of the oil drilling process, such failure cause interruptions in the drilling operations and incurred high maintenance cost to the oil drilling company. This issue can be resolved with the implementation of the optimum control mechanism while operating the drill string. In this research, an optimum control mechanism was proposed to suppress the torsional vibration as well as mitigate the risk of stick slip phenomenon from occurring. The mechanism was proposed through a series of rigorous research strategies i.e. updated-mathematical equation modelling, experimentation and simulation. As the first step, a mathematical equation model describing system dynamics was derived to set the parameter of investigation. Representing the freedom torsional of the two degrees - conventional vertical drill string, the model was used to predict the frictional Torque On Bit (TOB) through non-linear friction force, denoting the ground-formation behaviour during drilling activity. Using a velocity feedback system, the drill-string oscillation was reduced while gradually increasing its velocity via gain scheduling method - allowing fast response to load disturbance. To avoid the motor torque from exceeding the maximum threshold, a Weight On Bit (WOB) was introduced. This approach remarks the novel contribution of this research. Next, an experiment on the preliminary test rig within a controlled laboratory set up was conducted. The rotary drill rig was assembled to identify the dynamics (i.e. parameters) of an individual part of the drill string. The results obtained were then applied in the drill string operation experiment, to identify the optimum control mechanism that can avoid the torsional vibration. To enable triangulation of results, a simulation was conducted by applying the same parameters obtained from the test rig experiment in the model- which is the optimum control mechanism that was proposed in this research to minimise torsional vibration, as well as reducing the chance of drill-string failure due to stick-slip phenomenon.

The research reported in this doctoral thesis involves constructing physiochemical models that reproduce the transport behaviour of aqueous chemical species present in environments relevant to the oil and gas industry to gain an improved insight into the local electrochemistry near the electroactive surface (uniform corrosion) or inside the pit (pitting corrosion). The first part of the project involved constructing physiochemical models with one dimensional geometry with aqueous chemical species and chemical and electrochemical processes observed in oxygen (O2) containing brine environments to determine the changes in the local electrolyte composition and the potential within an initiated pit for a variety of external physical and chemical conditions. It was determined that the bottom of the pit suffers greatly from the effects of iR drop (Ohmic drop) if the pit geometry is taken to be macroscopic. The model was extended to include additional aqueous chemical species in conjunction with the chemical and electrochemical processes observed in carbon dioxide (CO2) rich environment to investigate the effects of CO2 on the local electrolyte chemistry at the bottom of the pit. It was found that the proton reduction electrochemical process on its own was incapable of supplying the high currents experimentally measured in CO2 environments via the buffering effect. The second part of the project was to investigate the influence of different experimental conditions on the polarisation behaviour of near static carbon steels in CO2 saturated brine electrolyte via multiple electrochemical measurement techniques. The key observation from this study was the presence of two distinct mass transport limited regions on the cathodic polarisation curve at natural pH (3.775). From the physiochemical model fitted to the experimental cathodic curve, the first mass transport limited region, occurring at lower cathodic potentials, was identified to be the direct reduction of carbonic acid while the second wave, occurring at slightly higher cathodic potentials, was shown to be the direct reduction of aqueous carbon dioxide. Based on the polarisation scans under forced convection, the rate of the direct reduction of carbon dioxide was determined to be under neither potential nor mass transport control. The third part of the project involved extending the existing one dimensional models to include the precipitation of salt films (iron chloride – FeCl2(s) and iron carbonate – FeCO3(s)) in O2 and CO2 saturated brine electrolyte respectively along with the capability to track their respective thickness. Furthermore, the ability of the underlying metal to undergo a change in its state from active to passive is implemented in the model via a set of rules based on the Pourbaix diagram. It was determined that the precipitation of salt films is greatly influenced by the mass transport with no or minimal thickness observed under even natural convection conditions. Furthermore the successful precipitation of salt film was determined to be a precursor step to the metal attaining passivation.