Abstract
Various models have been used to estimate the amount of oil recoverable from an oil province and the likely sequence of discoveries from any further exploration programme, often with significantly different results. One particular type of model, the discovery-process model, considers oil exploration as a sampling process without replacement, with the underlying size distribution of oilfields determined by the maximum likelihood method. In this paper we consider one example of this type of model, the O'Carroll model, which was previously dismissed as misspecified because of the apparently unrealistic results it gave from early North Sea data. We re-examine this model, solving the integer-constrained maximum likelihood problem in a novel way—as an allocation problem in dynamic programming. Our conclusion is that this model gives a robust estimate of the oil potential in the UK Continental Shelf and a credible distribution of fields yet to be found.
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Fryer, M., Greenman, J. Estimating the Oil Reserve Base in the UK Continental Shelf. J Oper Res Soc 41, 725–733 (1990). https://doi.org/10.1057/jors.1990.101
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DOI: https://doi.org/10.1057/jors.1990.101