Chalk Reservoir Management Through Rock Physics Diagnostics - Field Examples from the Danish North Sea

Abstract

This paper illustrates the value of an integrated approach to management of chalk reservoirs and aims to provide the reader with 3D and 4D seismic examples that takes offset in the key parameters controlling elastic behaviour of chalk without discussing theories or models in depth, and only include well logs or laboratory derived models to support the examples. The examples of this paper show how quantitative geophysical analysis through integration with well-established reservoir engineering and geoscience processes has impacted reservoir management and field development significantly. The diagnostics have led to optimized drilling and near field appraisal, maturation of wells, identification of remaining potential and insight to water flooding dynamics. The paper concludes that an integrated approach to field development and reservoir management includes quantitative geophysical interpretation and that rock physics is an excellent enabler for integration between geoscience and petroleum engineering.