某区块原油物性实验研究

Experimental Study on Properties of Crude Oil From a Block

以大庆油田某区块为对象,开展了原油粘温性及流变性实验研究,测定其在不同温度(20~95℃),不同剪切速率(0~1 000 S-1)条件下原油粘度。结果表明:在相同的温度及剪切速率条件下,各区块原油粘度关系为:μG﹥μQ﹥μL﹥μK;各区块原油的反常点在40~45℃附近;在实际地层温度条件下,剪切速率对粘度的影响可以忽略不计。

Taking a block in Daqing oilfield as the research object, experimental research on crude oil viscosity-temperature property and rheological property was carried out, crude oil viscosities under different temperature（20-95℃） and different shear rate（0-1 000 s-1） were analyzed. The results show that, under the condition of same temperature and shear rate, the relationship of oil＇s viscosity in different blocks is μG﹥μQ﹥μL﹥μK. Crude oil＇s abnormal points of every blocks are 40-45℃.Under the condition of actual formation temperature, the influence of shear rate on viscosity is negligible.