Crack Expansion and Fracturing Mode of Hydraulic Refracturing from Acoustic Emission Monitoring in a Small-Scale Field Experiment

We conducted a hydraulic fracturing (HF) experiment at a 500-m-level gallery in Mizunami Underground Research Laboratory in central Japan. We drilled a hole downward from the gallery floor and initially injected water at a flow rate of 10 mL/min in a section of 36 mm in diameter and 160 mm in length...

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Veröffentlicht in:	Rock mechanics and rock engineering 2019-02, Vol.52 (2), p.543-553
Hauptverfasser:	Ishida, Tsuyoshi, Fujito, Wataru, Yamashita, Hiroto, Naoi, Makoto, Fuji, Hirokazu, Suzuki, Kenichirou, Matsui, Hiroya
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic emission Boreholes Civil Engineering Earth and Environmental Science Earth Sciences Flow rates Flow velocity Fracture mechanics Geophysics/Geodesy Hydraulic fracturing Original Paper P-waves Pollution monitoring Regions
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