Green house gas emissions from oil and natural gas production

The No Risk No Energy (NRNE) project, supported by the Italian Ministry of Economic Develop- del Rischio Ambientale, Napoli, Italy ment - Directorate General for Safety, intends to develop a quantitative methodology to assess environmental, economic and social impacts deriving from the exploitation of energy resources by taking into account geographical and social peculiarities of the exploitation site. In this paper, we specify the models used to estimate greenhouse gas emissions from oil and gas operations and we present their application to fictitious fields approximating real Italian oil and gas fields. We identified OPGEE as the ideal model to estimate greenhouse gas emissions from oil operations and we implemented a model based on NETL libraries to estimate emissions from natural gas production. Model boundaries are Well to Refinery Gate for oil and Well to Tank for natural gas. Sensitivity to selected input parameters is also presented.