Recent research has shed light on the greenhouse gas (GHG) emissions associated with offshore oil and gas production, particularly focusing on floating production storage and offloading (FPSO) platforms. Led by Victor Leonardo Acevedo Blanco from the Vanti Group in Bogotá, Colombia, the study employs methodologies from the American Petroleum Institute (API) and the U.S. Environmental Protection Agency (EPA) to provide a comprehensive diagnosis of emissions in these high-stakes environments.
The findings are striking: approximately 95% of total GHG emissions stem from combustion processes, specifically gas turbines used for electricity generation and compressors. This indicates that while operational advancements in technology are essential, the core processes of energy generation in these facilities remain a significant challenge in the quest for sustainability. “Our research highlights the urgent need for the oil and gas sector to adopt more efficient technologies and practices,” Acevedo Blanco stated, emphasizing the commercial implications of these findings.
As oil and gas production increasingly shifts to deeper waters, particularly in Brazil’s pre-salt fields, the energy intensity required for extraction and processing has escalated. Notably, the study reveals that in the later stages of oil field production, energy consumption can double, resulting in 2.3 times more CO2 emissions per unit of hydrocarbons produced. This trend raises questions about the long-term viability of current practices and the necessity for immediate action to mitigate environmental impacts.
The research also identifies the significant role of CO2 content in associated natural gas, which complicates efforts to minimize fugitive emissions during separation and compression processes. With a CO2 molar fraction exceeding 3%, the commercial viability of natural gas extraction hinges on the effective separation of CO2, necessitating the implementation of carbon capture and storage (CCS) strategies. This not only aligns with environmental commitments but also presents a potential avenue for the energy sector to enhance its sustainability profile.
The implications of this research extend beyond environmental concerns; they signal a pivotal moment for the oil and gas industry. As companies face increasing pressure to reduce emissions, the adoption of high-efficiency power systems, such as combined cycle technologies, could lead to substantial reductions in CO2 emissions. “Improving the efficiency of electrical generation is crucial. It represents a significant step toward a more sustainable production process,” Acevedo Blanco noted.
This diagnosis serves as a foundational tool for decision-makers within the energy sector, providing a baseline for developing strategies aimed at emission reduction and energy efficiency. By quantifying GHG emissions and identifying major sources, companies can make informed choices that not only comply with regulatory requirements but also enhance their market competitiveness.
The findings were published in the journal ‘Gases’ (translated from Spanish), underscoring the critical nature of this research in shaping future developments in offshore oil and gas production. As the industry grapples with the dual challenges of meeting energy demands and addressing climate change, studies like this one are essential in guiding the transition towards more sustainable practices.
For further information about the research and its implications, you can visit the Vanti Group’s website at Vanti Group.
