Production Induced Microseismicity – The Geomechanical Significance

P225 PRODUCTION INDUCED MICROSEISMICITY: THE GEOMECHANICAL SIGNIFICANCE Introduction 1 Throughout the life of a reservoir the hydrocarbon production process induces pressure changes within the reservoir. These changes result in perturbations to the in situ stress conditions that propagate through the reservoir. One of the key drivers for the development of 4D (3D time-lapse) reflection seismic has been the need for time-lapse images of where and when these changes are taking place and also their magnitude and impact on production. Geomechanical modelling is an important tool in this characterisation process providing insight into the changes occurring within the reservoir due to