... the injected CO 2 migrating back to the atmosphere or reaching potable aquifers, either through the well or the caprock itself. Openhole data from 43 years ago consisted only of 1-arm caliper and compressional sonic data. In order to predict geomechanical effects on the formation from production or CO 2...

... Abstract The safe long-term storage of gas/CO 2 in spatially limited underground volumes requires the combination of a structural trap with intact structural integrity and a suitable low permeability caprock (seal). The occurrence of natural gas reservoirs proves that certain lithotypes do...

.... An integrated geomechanics workflow to evaluate caprock integrity is presented in this paper. This approach integrates reservoir simulation which typically computes variation in formation pressure and temperature with geomechanical simulation which models variation in stresses. Coupling between these two...

... of casing. Using typical values for the hydrologic properties of cement, caprock (shale) and reservoir materials, we show that the capillary properties of good quality cement will prevent flow of CO 2 into and through cement. Rather, CO 2 , if present, is likely to be confined to the casing-cement...