Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility

This work presents a diagnosis of greenhouse gas (GHG) emissions for floating production storage and offloading (FPSO) platforms for oil and gas production offshore, using calculation methodologies from the American Petroleum Institute (API) and U.S. Environmental Protection Agency (EPA). To carry o...

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Main Authors: Victor Leonardo Acevedo Blanco, Waldyr Luiz Ribeiro Gallo
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Gases
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Online Access:https://www.mdpi.com/2673-5628/4/4/20
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author Victor Leonardo Acevedo Blanco
Waldyr Luiz Ribeiro Gallo
author_facet Victor Leonardo Acevedo Blanco
Waldyr Luiz Ribeiro Gallo
author_sort Victor Leonardo Acevedo Blanco
collection DOAJ
description This work presents a diagnosis of greenhouse gas (GHG) emissions for floating production storage and offloading (FPSO) platforms for oil and gas production offshore, using calculation methodologies from the American Petroleum Institute (API) and U.S. Environmental Protection Agency (EPA). To carry out this analysis, design data of an FPSO platform is used for the GHG emissions estimation, considering operations under steady conditions and oil and gas processing system simulations in the Aspen HYSYS<sup>®</sup> software. The main direct emission sources of GHG are identified, including the main combustion processes (gas turbines for electric generation and gas turbine-driven CO<sub>2</sub> compressors), flaring and venting, as well as fugitive emissions. The study assesses a high CO<sub>2</sub> content in molar composition of the associated gas, an important factor that is considered in estimating fugitive emissions during the processes of primary separation and main gas compression. The resulting information indicates that, on average, 95% of total emissions are produced by combustion sources. In the latest production stages of the oil and gas field, it consumes 2 times more energy and emits 2.3 times CO<sub>2</sub> in terms of produced hydrocarbons. This diagnosis provides a baseline and starting point for the implementation of energy efficiency measures and/or carbon capture and storage (CCS) technologies on the FPSO in order to reduce CO<sub>2</sub> and CH<sub>4</sub> emissions, as well as identify the major sources of emissions in the production process.
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spelling doaj-art-50bb06fbf3e24a91b7ca71ae4404a1ff2025-08-20T02:00:38ZengMDPI AGGases2673-56282024-10-014435137010.3390/gases4040020Diagnosis of GHG Emissions in an Offshore Oil and Gas Production FacilityVictor Leonardo Acevedo Blanco0Waldyr Luiz Ribeiro Gallo1Vanti Group, Bogotá 253448, ColombiaEnergy Department, University of Campinas, Campinas 13083-860, BrazilThis work presents a diagnosis of greenhouse gas (GHG) emissions for floating production storage and offloading (FPSO) platforms for oil and gas production offshore, using calculation methodologies from the American Petroleum Institute (API) and U.S. Environmental Protection Agency (EPA). To carry out this analysis, design data of an FPSO platform is used for the GHG emissions estimation, considering operations under steady conditions and oil and gas processing system simulations in the Aspen HYSYS<sup>®</sup> software. The main direct emission sources of GHG are identified, including the main combustion processes (gas turbines for electric generation and gas turbine-driven CO<sub>2</sub> compressors), flaring and venting, as well as fugitive emissions. The study assesses a high CO<sub>2</sub> content in molar composition of the associated gas, an important factor that is considered in estimating fugitive emissions during the processes of primary separation and main gas compression. The resulting information indicates that, on average, 95% of total emissions are produced by combustion sources. In the latest production stages of the oil and gas field, it consumes 2 times more energy and emits 2.3 times CO<sub>2</sub> in terms of produced hydrocarbons. This diagnosis provides a baseline and starting point for the implementation of energy efficiency measures and/or carbon capture and storage (CCS) technologies on the FPSO in order to reduce CO<sub>2</sub> and CH<sub>4</sub> emissions, as well as identify the major sources of emissions in the production process.https://www.mdpi.com/2673-5628/4/4/20GHG emissions inventoryfugitive emissionsoffshore oil and gas productioncarbon sequestration in oil fieldspower plant GHG emissions
spellingShingle Victor Leonardo Acevedo Blanco
Waldyr Luiz Ribeiro Gallo
Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
Gases
GHG emissions inventory
fugitive emissions
offshore oil and gas production
carbon sequestration in oil fields
power plant GHG emissions
title Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
title_full Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
title_fullStr Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
title_full_unstemmed Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
title_short Diagnosis of GHG Emissions in an Offshore Oil and Gas Production Facility
title_sort diagnosis of ghg emissions in an offshore oil and gas production facility
topic GHG emissions inventory
fugitive emissions
offshore oil and gas production
carbon sequestration in oil fields
power plant GHG emissions
url https://www.mdpi.com/2673-5628/4/4/20
work_keys_str_mv AT victorleonardoacevedoblanco diagnosisofghgemissionsinanoffshoreoilandgasproductionfacility
AT waldyrluizribeirogallo diagnosisofghgemissionsinanoffshoreoilandgasproductionfacility