Groningen: Spatial Prediction of Rock Gas Saturation by Leveraging Selected and Augmented Well and Seismic Data with Classifier Ensembles

Ivlev, Dmitry

arXiv.org Artificial Intelligence 

One of the key aspects of successful field exploration and monitoring of reservoir development is the spatial prediction of hydrocarbon saturation of geological structures. Traditional prediction methods based on various types of elastic inversion of seismic data may be limited in conditions of a complex geological structure and insufficient coverage of the studied space with well data. In such situations, machine learning algorithms can become an effective tool for the nonlinear, multidimensional generalization of knowledge obtained by geophysical methods in the well space to the entire territory covered by 3D seismic surveys. The study proposes a new approach to knowledge transfer, which consists in predicting the probability of gas saturation of the territory using ensembles of classifiers trained on data from logging studies of hydrocarbon saturation along the well trajectory. Attributes of the seismic field are used as predictors.