GAS-HYDRODYNAMIC PROCESS CALCULATION REPLACEMENT OF OIL WITH NITROGEN DURING CONSERVATION OIL PIPELINE SECTIONS

A method and software have been developed that make it possible to predict the gas-hydrodynamic parameters of oil displacement by nitrogen during the temporary removal of the pipeline from the mode of transportation to the mode of holding in a safe state. By means of mathematical modeling the regularities of pressure change at the beginning of the oil pipeline and in front of the delimiter, nitrogen consumption, oil displacement rate from the coordinate of the delimiter location on the pipeline route are obtained.