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Flowrate calculation model for fractured horizontal well depending on frac stages number

Authors: S.V. Elkin, A.A. Aleroev, N.A. Veremko, M.V. Chertenkov (LUKOIL-Engineering LLC, RF, Moscow

Key words: multi-stage fracturing (fracking), plane-parallel flow, drainage boundary, hydraulic fractures interference

This paper introduces the model of a fluid influx to the hydraulic fractures that are perpendicular to the wellbore and suggests the formula to calculate the flow rate of a horizontal well with a multi-stage fracturing depending on the fractures number. The authors have been starting out from the well-known method for calculating the flow rate of a vertical well with a hydraulic fracture length much less than the drainage radius. At the same time the calculations ignored the effect of configuration of injection wells towards the producing horizontal well with multi-stage fracturing, assuming that the formation pressure remains constant at the external reservoir boundary.

Key words: multi-stage fracturing (fracking), plane-parallel flow, drainage boundary, hydraulic fractures interference

This paper introduces the model of a fluid influx to the hydraulic fractures that are perpendicular to the wellbore and suggests the formula to calculate the flow rate of a horizontal well with a multi-stage fracturing depending on the fractures number. The authors have been starting out from the well-known method for calculating the flow rate of a vertical well with a hydraulic fracture length much less than the drainage radius. At the same time the calculations ignored the effect of configuration of injection wells towards the producing horizontal well with multi-stage fracturing, assuming that the formation pressure remains constant at the external reservoir boundary.



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