Key words: interference test, hydraulically fractured wells, auto hydraulic fracturing, active and observation wells.
This paper discuses result of field case of interference test with spontaneous development of fracture in the injection wells when the bottomhole pressure is higher than the formation fracturing pressures. Within 3 months of water injection growth of fracture length ~ 1000m. A numerical model was used to interpret the results of field case and estimated fracture conductivity.
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