Method for optimizing well placement in a tank tanker

- A method for determining locations of wells, or drainage areas, in a hydrocarbon reservoir for the exploitation of the reservoir. - We randomly generates drainage zone configurations, generating for each configuration of the locations for each drainage zones. Determining the locations of each drainage area for optimizing a quality criterion by means of an iterative optimization algorithm in which: for the first iteration, it is judged the quality criterion by means of a flow simulator and for subsequent iterations, we construct a model approximate evaluation of the quality criterion, it is judged the quality of the approximate model, and determining the quality criterion using the approximate model or by means of the flow simulator depending on the quality of this approximate model.