A method for detecting petroleum or petroleum products from pipelines

摘要

A method of detecting oil leakage or oil from the pipeline, comprising measuring the pressure drop at the pump station by means of pressure sensors with subsequent determination of the magnitude of leakage from the pipeline, characterized in that the pressure sensor readings for the pumping station is calculated reduction developed by the pressure pump station due to an increase over it the liquid flow due to the occurrence of leakage and using vyrazheniyamiopredelyayut moment of occurrence and the amount of leakage in a crash since its Identification off until the pump station, and if necessary, the threshold value of the leakage is determined in a preliminary step, using statistical methods, wherein Q- flow controlled by a sensor at the end of the control section of the pipeline since the fixing of the accident (Q Q); Q- flow controlled at the end of the flow sensor controlling portion during normal operation; H- pressure pumping station at zero flow, H / m; H- pressure at the beginning of the pipeline during normal operation, H / m;? H - change (reduction) of the differential pressure pumping station due to leakage, H / m; and the pressure reduction pump station is determined by the expression where g - acceleration of gravity; ρ - density of the fluid; P, P- pressure at the outlet and inlet of the pumping station, the measured pressure gauges; 0, 1 - codes corresponding to the parameters during normal operation and accidents.