Title
Sequential model aggregation for production forecasting.
Abstract
Production forecasting is a key step to design the future development of a reservoir. A classical way to generate such forecasts consists in simulating future production for numerical models representative of the reservoir. However, identifying such models can be very challenging as they need to be constrained to all available data. In particular, they should reproduce past production data, which requires to solve a complex non-linear inverse problem. In this paper, we thus propose to investigate the potential of machine learning algorithms to predict the future production of a reservoir based on past production data without model calibration. We focus more specifically on robust online aggregation, a deterministic approach that provides a robust framework to make forecasts on a regular basis. This method does not rely on any specific assumption or need for stochastic modeling. Forecasts are first simulated for a set of base reservoir models representing the prior uncertainty and then combined to predict production at the next time step. The weight associated with each forecast is related to its past performance. Three different algorithms are considered for weight computations: the exponentially weighted average algorithm, ridge regression, and the Lasso regression. They are applied to a synthetic reservoir case study, the Brugge case, for sequential predictions. To estimate the potential of development scenarios, production forecasts are needed on long periods of time without intermediary data acquisition. An extension of the deterministic aggregation approach is thus proposed in this paper to provide such multi-step-ahead forecasts.
Year
DOI
Venue
2018
10.1007/s10596-019-09872-1
Computational Geosciences
Keywords
DocType
Volume
Reservoir, Production forecasting, Machine learning, Robust online aggregation
Journal
23
Issue
ISSN
Citations 
5
1420-0597
0
PageRank 
References 
Authors
0.34
2
4
Name
Order
Citations
PageRank
Raphaël Deswarte100.34
VéRonique Gervais211.25
Gilles Stoltz335131.53
Sébastien Da Veiga4354.58