TY - DATA AB - Characterizing the stimulation mode of a fracture is critical to assess the hydraulic efficiency and the seismic risk related to deep fluid manipulations. We have monitored the three-dimensional displacements of a fluid-driven fracture during water injections in a borehole at ~1.5 km depth in the crystalline rock of the Sanford Underground Research Facility (USA). The fracture initiates at 61% of the minimum horizontal stress by micro-shearing of the borehole on a foliation plane. As the fluid pressure increases further, borehole axial and radial displacements increase with injection time highlighting the opening and sliding of a new hydrofracture growing ~10 m away from the borehole, in accordance with the ambient normal stress regime and in alignment with the microseismicity. Our study reveals how fluid-driven fracture stimulation can be facilitated by a mixed-mode process controlled by the complex hydromechanical evolution of the growing fracture. The data presented in this submission refer to the SIMFIP measurements and analyses of the stimulation tests conducted on the 164 ft (50 m) notch of the Sanford Underground Research Facility (SURF), during the EGS-Collab test 1. In addition to the datafiles, there is the draft of a manuscript submitted to Geophysical Research Letters (GRL). AU - Guglielmi, Yves DB - Open Energy Data Initiative (OEDI) DP - Open EI | National Renewable Energy Laboratory DO - 10.15121/1737366 KW - geothermal KW - energy KW - SIMFIP KW - New borehole instrument KW - hydrofracture KW - EGS Collab KW - nucleate KW - anisotropy KW - shear displacement KW - wellbore KW - experiment KW - stimulation KW - seismic KW - seismicity KW - fracture KW - hydraulic conductivity KW - stress KW - shear KW - borehole KW - micro-shearing KW - foliation KW - injection test KW - Sanford Underground Research Facility KW - SURF KW - EGS KW - hydraulic KW - geophysics KW - displacement KW - flow rate LA - English DA - 2020/09/24 PY - 2020 PB - Lawrence Berkeley National Laboratory T1 - EGS Collab Experiment 1: SIMFIP Notch-164 GRL Paper UR - https://doi.org/10.15121/1737366 ER -