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一、引言江苏石油勘探局有许多分散的采油井站，生产中常需将各井站开采出的原油集中运往指定处理厂。油罐车在采油井站装油时，经蒸汽加热的原油温度约为50-60℃，此时原油流动性好，易装易卸。但是，在寒冷气候条件下，原油在运输途中容易失热凝结（凝结点46℃），以致于难以
I. INTRODUCTION There are many scattered oil well stations in Jiangsu Petroleum Exploration Bureau. In production, it is often necessary to concentrate the crude oil produced from each well station to a designated treatment plant. Oil tanker oil wells in the oil station, the steam heated crude oil temperature is about 50-60 ℃, this time crude oil liquidity, easy loading and unloading. However, in cold climates, crude oil tends to de-heat and condense during transport (with a condensation point of 46 ° C) so that it is difficult