Study on Optimization of Drilling Parameters in Henan Oil Field

The well log data and bit wear data are processed combined with the widely used drilling equations.The coefficients in these equations are calculated by means of optimization-inversion.A optimization and calculation system of drilling parameters is developed based on the inversion of coefficients.The optimum drilling parameters and optimum hydraulic parameters of two wells in Henan oil field are calculated.The total drilling depth and drilling time are predicted.The calculated result inosculates with the practical drilling data.