Comparison of pressure losses calculations by approximate methods in the annulus (laminar flow)‎

Abstract EN

Most of the world's drilling companies use API method for calculating the pressure drop in drilling oil and gas wells.

Iraqi Drilling Company also uses this method for drilling oil wells in all fields of Iraq.

In Russia, the method is actively used Grodde for calculating the pressure drop in drilling oil and gas wells.

This study includes a comparison of formulas API, Grodde and new techniques developed methods for the laminar flow of viscoplastic fluids in the annular space.

The aim of this study is to determine the most accurate way to calculate the pressure loss in drilling oil wells.

The comparison was focused on identifying changes in the values of β, using the above calculation methods.-