Estimation of the number of stages of hydraulic fracturing in horizontal wells in various geological conditions

Abstract

Summary The report considers the problem of fluid flow to a well with multistage hydraulic fracturing (MSHF) in an infinite and bounded homogeneous isotropic formation. An approximating dependence of the skin factor in a horizontal well with multistage fracturing on its parameters has been obtained. Calculation formulas for expressing the skin factor was derived. Based on the solution of the diffusivity equation for a bounded formation with a boundary condition of the first kind, rates and cumulative production for the well were obtained with good accuracy. An economic estimation of the optimal number of hydraulic fracturing stages was presented. To evaluate this values specialized script is written by means of Python programming language.