The files in this submission describes the results of a series of stress measurement and hydraulic fracturing experiments conducted at the Sanford Underground Research Facility (SURF) in Lead, SD. This report describes the accomplishments of the kISMET (permeability (k) and Induced Seismicity Management for Energy Technologies) project. Five near-vertical boreholes were drilled and cored on the 4850 level of SURF in phyllite of the Precambrian Poorman Formation, and a series of hydraulic fracture experiments and stress measurements were conducted in the central borehole: the outer boreholes were used for monitoring purposes.
Final report for kISMET project describing the project objectives, the site selection process, laboratory rock core studies, pre-test modeling and analysis, stress measurement and stimulation, geophysical monitoring and analysis, analytical solutions for estimating fracture size, a site-wide stress analysis, and overall conclusions.
Overview and highlights paper on kISMET (permeability (k) and Induced Seismicity Management for Energy Technologies) project. The paper discusses the site selection, characterization, and infrastructure, laboratory measurements on core, stress measurements and stimulation, modeling and simulation, and monitoring efforts.
SGW Hydraulic Fracturing Experiments Paper.pdf