An indicator of the value seismic information in the exploration oil projects / Um indicador do valor da informação sismica em projetos de exploração de petroleo

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

The assessment of exploratory opportunity has a fundamental importance in the upstream oil industry due to a high number of projects and the limited budget from companies. The valuation of each project depends on the estimation of oil quantities from a given field which accuracy changes with the capacity of measure the reservoir size. In the last decades, the technological progress positioned seismic data as a significant source of information for opportunities. Therefore, it is necessary that the technology used to get information should be incorporated at assessment processo This dissertation presents a methodology by using an indicator of seismic information which its value gives a degree of confidence of the technological seismic option used. This methodology ,also develops an option to estimate the value of imperfect seismic information for new surveys through the inc1usion of the amount of data, data quality, the embedded geological model, the adequacy and performance ofthe technologyused and others characteristics inherent ofbasin such as noises low-velocity zone that can influence the quality datao The main goal of this methodology is to support the assessment and ranking of exploratory opportunities giving valuable information to the decision process in a consistent and standard formo A case study presented shows that the indicator presents good performance by adjusting the opportunities, considering the most reliable outcomes and improving the decision-making process

ASSUNTO(S)

incerteza (teoria da informação) avaliação de riscos uncertainty (information theory) seismic reflection method geophysics sistemas de suporte de decisão metodo sismico de reflexão geofisica risk evaluation decision support systems

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