Título principal
Construção de inventários de ciclo de vida de operações de tratamento de resíduos de perfuração de poços de petróleo e gás [recurso eletrônico] / Rebeca Borges de Oliveira ; orientador, Sebastião Roberto Soares
Data de publicação
2024
Descrição física
140 p. : il.
Nota
Disponível somente em versão on-line.
Dissertação (mestrado) – Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Ambiental, Florianópolis, 2004
Inclui referências.
Construção de inventários de ciclo de vida de operações de tratamento de resíduos de perfuração de poços de petróleo e gás [recurso eletrônico] / Rebeca Borges de Oliveira ; orientador, Sebastião Roberto Soares
Data de publicação
2024
Descrição física
140 p. : il.
Nota
Disponível somente em versão on-line.
Dissertação (mestrado) – Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Ambiental, Florianópolis, 2004
Inclui referências.
Abstract: Drilling of oil wells occurs through rotary drills, which generates rock fragments known as drilling cuttings (DC). These cuttings are brought to the surface aided by drilling fluids that return through the space between the drill collum and the wellbore wall. The fluid used contains chemical compounds that vary according to the well characteristics, directly influencing the composition of DC. Thus, certain components of non-aqueous drilling fluids (NADF) may potentially impact the marine environment. Even after the processing of the fluid/cuttings mixture, there is a possibility that a portion of the fluid remains trapped in the cuttings, making offshore disposal unfeasible and requiring transport to offshore or onshore final treatment/disposal. Life Cycle Assessment (LCA) can be an alternative to analyze potential environmental impacts and possible treatment options for cuttings and drilling fluids, either offshore or onshore. In this regard, this study aims to foster the development of Life Cycle Inventories (LCI) for treatment and final disposal alternatives for oil and gas well DC, from a waste management perspective. The methodology involves i) defining treatments for DC; ii) qualifying LCI; and iii) establishing technological routes from an environmental perspective. The definition of treatment alternatives was made through a literature review with a brief description of each technology. The qualification of LCI was carried out through a systematic review on the Web of Science, Scopus, SpringerLink, and Scielo portals. Searches were also conducted on thesis and dissertation portals (CAPES and BDTD). At the end of this research, it was possible to complement the LCI information for various technologies, including inert landfill, industrial landfill, sanitary landfill, co-processing, thermal desorption, incineration, landfarming, and reinjection. The study provided: i) a detailed description of the inventory of each treatment and final disposal alternative for drilling waste; ii) the identification of impact categories that revealed the greatest discrepancies between the ecoinvent inventory and literature data; iii) an analysis of specific substances linked to these impact categories. This systematic review, conducted to identify inventories, revealed some of the information limitations in the literature survey. Although there are many studies on treatment and disposal technologies and LCA, few focus on LCA of drilling cuttings regarding the evaluated technologies. Additionally, the scope often encompasses other realities different from Brazil. Thus, nine literature inventories were analyzed and compared with seven based on ecoinvent. It was concluded that integrating datasets between different inventories is a complex and challenging task, given the diversity of construction methodologies and specific waste and CONFERE COM ORIGINAL, cópia extraída de documento original de acordo com o Art. 5º do Decreto nº 83.936/79. technology considerations. These findings underscore the importance of LCA for drilling cuttings treatment technologies and highlight the importance of robust methodological choices in inventory construction.