relation: http://miis.maths.ox.ac.uk/miis/678/ title: Smoothing of Well Rates in Subsurface Hydrocarbon Reservoir Simulators creator: Kounchev, O. creator: Todorov, M. creator: Georgieva, D. creator: Simeonov, N. creator: Kolev, V. subject: Energy and utilities subject: Fluids description: A common problem in reservoir simulators is the history matching problem, where a number of wells are operated at a prescribed flow rate, measured by the operator. The data provides input to a simulator which then has to match various other measured quantities, such as pressure drop at wells, movement of saturation fronts, water break-out and other. A common problem is that the input data is very rough and if input directly would cause considerable numerical difficulties, such as excessive Newton iterations to converge or excessively small time-steps. date: 2014 type: Study Group Report type: NonPeerReviewed format: application/pdf language: en identifier: http://miis.maths.ox.ac.uk/miis/678/1/ESGI_104_P3.pdf identifier: Kounchev, O. and Todorov, M. and Georgieva, D. and Simeonov, N. and Kolev, V. (2014) Smoothing of Well Rates in Subsurface Hydrocarbon Reservoir Simulators. [Study Group Report]