Abstract
This chapter discusses analytical and numerical modeling of high-pressure fluid-rock mechanical interaction in hot dry rock (HDR) geothermal energy reservoirs. In the case of HDR exploitation, the contribution of microseismic location and interpretation is of fundamental importance for a satisfactory modeling interpretation of processes, dimensions, magnitudes, stress orientations, and locations. Models are evolved gradually in response to field observations, commencing with relatively simple analytical models and progressing to more complex numerical models. Pseudo-3D and true 3D modeling are now possible. Further modeling sophistication is possible and can certainly develop. However, there can always be a limit to the quantity and quality of field data available because of the remoteness of the environment. The following are the main variables considered in the modeling: (1) joint orientation, spacing, aperture, shear and normal compliance, shear strength, dilation, and connectivity; (2) rock mass deformability; (3) fluid flow regime in joint networks; and (4) far field stress and hydraulic boundary conditions.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call