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In this study, several synthesis routes were adopted to prepare nanometer sized metal-phosphonate particles to expand their use in the delivery of phosphonate mineral scale inhibitors into formation porous media for oilfield scale control. An aqueous solution of calcium chloride or zinc chloride was mixed with a basic phosphonate solution to form nanometer sized particles. The physical and chemical properties of the fabricated nanomaterials and their solutions have been carefully evaluated. The obtained nanomaterial suspensions were stable for a certain period of time at 70°C in saline solutions. The nanomaterials demonstrated a good migration performance through formation porous media. Transportability was affected by both the flow velocity and the surface chemistry of the nanomaterials as well as the formation medium. The transport of these nanomaterials can be enhanced, when the formation materials were pre-flushed by surfactant solutions. The potential application of the synthesized nanomaterials for scale treatment in oilfields has been investigated by a series of laboratory squeeze simulation tests. The synthesized nanomaterials were injected into formation medium and retained on the medium surfaces. After a shut-in period, the inhibitor nanomaterials slowly released phosphonates into the produced fluid to prevent scale formation. It has been observed that the prepared nanomaterials are able to return phosphonates in a similar return profile as that of the conventional acidic pills. Moreover, the crystalline phase Ca-DTPMP nanomaterials, developed from their amorphous precursors, demonstrate a long term phosphonate return behavior with a stable phosphonate return concentration for an extended period of time. The long term flow back performance of metal-phosphonate nanomaterials can be interpreted by their solubility product in brine solutions.

Orientador: Denis José Schiozer / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências / Made available in DSpace on 2018-08-16T02:47:54Z (GMT). No. of bitstreams: 1 Guillou_Olivier_M.pdf: 7496791 bytes, checksum: 64b1e03f7a1baa620f4a354c4e790f09 (MD5) Previous issue date: 2010 / Resumo: As crescentes dificuldades encontradas na exploração e produção de petróleo, tais como a diminuição das grandes descobertas, o afastamento da costa e as profundidades cada vez maiores dos campos, criam uma necessidade permanente de inovação. A fim de melhor conhecer e dominar os reservatórios situados em regiões remotas, novas ferramentas e novas metodologias precisam ser desenvolvidas. Com capacidade computacional em constante aumento e algoritmos avançados, esta demanda pode ser satisfeita. A partir de novas metodologias de integração de sísmica 3D desenvolvidas e integradas em um processo de otimização baseado em modelagem a posteriori, diversos resultados válidos tem sido obtido. Neste contexto, a caracterização de reservatórios condicionada a atributos sísmicos se revelou uma maneira eficiente de melhorar a qualidade sísmica dos modelos assim como o respeito dos modelos gerados (Barens et al, 2004). Esta dissertação propõe comparar os resultados de quatro metodologias de caracterização de reservatório e os seus respectivos impactos na análise de risco do campo. O caso de estudo é realizado em um campo de turbiditos situado nas águas profundas da costa oeste africana a partir de cinco poços exploratórios e uma exploração sísmica 3D de boa qualidade / Abstract: The growing difficulties encountered in petroleum exploration and production, such as declining discoveries, increasing coastal distances and field depth, create a constant need for innovation. To improve the knowledge and dominate reservoirs located in remote areas, new tools and methodologies must be developed. With the steady increase in computing power and the birth of new algorithms, this demand can be satisfied and project risks can be reduced. From new 3D seismic integration methodologies developed and integrated into an optimization process based on forward modeling, different valid results have been obtained. In this context, seismic constraint characterization has shown an effective way to improve the seismic quality and the relevance of generated models (Barens et al, 2004). This dissertation proposes to compare the results of four reservoir characterization methodologies on a field development risk analysis. The case study is realized on a deep offshore West African turbidites with a relevant exploration wells number and a good 3D seismic survey quality / Mestrado / Reservatórios e Gestão / Mestre em Ciências e Engenharia de Petróleo

This thesis attempts to describe the role of the British Admiralty&rsquo / s oil related naval policies from 1909 to 1914 in the formation of British oil diplomacy in the northern hinterlands of the Persian Gulf. On the basis of this attempt, it examines the precise beginning of oil security concerns of Britain and its articulation on the southwest Persian and Mesopotamian oil basins in light of the transition of the Royal Navy from coal to oil burning internal combustion engines. It delineates the interconnectedness of the issues relating to the significance of oil in British naval developments and naval supremacy and her clash of interests with the other Great Naval Powers, which had significant interest in oil rich Mesopotamia and southern Persia. By 1914, the Admiralty, through its exceptional relations with the Anglo-Persian Oil Company in the hinterlands of the Persian Gulf became an important actor in the government&rsquo / s involvement in the oil industry. This thesis, suggests that the Admiralty was the political demand channel in the processes of British imperial expansion under the spread of new imperialism in general, and in the consolidation of fuel oil security in particular. The study will be a contribution to the academic literature on the history of naval powers in Turkey.