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oa Correlation between the Reservoir Dynamics Performance and Production/Injection Induced Microseismicity – A Field Case
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Second EAGE Passive Seismic Workshop - Exploration and Monitoring Applications 2009, Mar 2009, cp-122-00025
- ISBN: 978-90-73781-59-7
Abstract
Mapping passive seismics in Cusiana and Cupiagua fields has revealed a strong correlation between reservoir dynamic performance and production induced microseismicity. Fluid production/injection causes changes in reservoir pore pressure and, therefore, in local effective stresses. The changes in effective stresses cause natural fracture deformations which, in turn, change local transmissibilities and triggers microseismic events. The interplay of these two latter effects determines the relationship between microseismicity and reservoir dynamics (pressures and fluid saturations among other factors).