Print Email Facebook Twitter Site-specific geomechanical modeling for predicting stress changes around depleted gas reservoirs considered for CO2 storage in the Netherlands Title Site-specific geomechanical modeling for predicting stress changes around depleted gas reservoirs considered for CO2 storage in the Netherlands Author Orlic, B. Contributor Orlic, B. (editor) ter Heege, J.H. (editor) Publication year 2011 Abstract Geomechanical simulations were conducted on a number of site-specific numerical models of depleted gas fields considered for CO2 storage in the Netherlands. Simulations were aimed at assessing the maximum areal extent of stress perturbation around depleted reservoirs at the end of depletion period. Simulation results indicate that the extent of stress changes around depleted reservoirs is at least one order of magnitude smaller compared to the extent of stress changes associated with industrial-scale CO2 storage in saline aquifers. In the case of small compartmentalized gas reservoirs, a few to ten kilometers long and a few kilometers wide, without aquifer support or without pressure drop in supporting aquifers, the maximum extent of stress changes is limited to a few kilometers. On the other hand, the extent of the area affected by pressure perturbations and, consequently, stress perturbations in the case of CO2 storage in saline aquifers is commonly a few tens to hundreds of kilometers away from the injection zone. The magnitude and pattern of induced stress changes around depleted reservoirs depend on many factors including the structural setting, reservoir shape and the geomechanical rock properties of different lithostratigraphic units. Subject Earth / EnvironmentalSGE - Sustainable Geo EnergyELSS - Earth, Life and Social SciencesGeological Survey NetherlandsGeosciencesEnergy / Geological Survey Netherlands To reference this document use: http://resolver.tudelft.nl/uuid:0aa6f94a-cbd4-47fb-92c6-e7670a2453db TNO identifier 503716 Publisher CATO-2 Source CATO-2 Deliverable WP3.03-D23 : Case study on reservoir/caprock deformation, surface deformation, seal integrity, and fault reactivation/seismic risk : Final Report, 2013, 6-20 Article number ARMA 13-446 Bibliographical note Paper prepared for the 47th US Rock Mechanics/Geomechanics Symposium Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.