锡14块特超稠油流变性实验研究

稠油流变性特征对稠油开采、数值模拟、集输工艺等均是有重要的参考作用,用旋转粘度法研究了中原油田锡14块原油的粘-温特性和流变特性。结果表明：温度越低,该区块稠油粘度对温度变化越敏感,原油的粘-温拐点为70℃,油藏温度下屈服值达到61.3 Pa,原油的牛顿流体转化温度在85～90℃以上;含乳化水30%左右时,在50～90℃温度范围内乳化水对原油粘度有较大影响。

Experimental Study on Rheological Property of Xi 14 Block Super Heavy Oil

Rheological property of heavy oil is important to production, numerical simulation, gathering of viscous crude oil. The viscosity-temperature relationship and rheological property of super heavy oil from Zhongyuan oilfield Xi 14 block were studied by the rotary method. The results show that the viscosity of oil is more sensitive to temperature at low temperature, and the viscosity-temperature inflection point is 70 ℃, yield value is 61.3Pa at reservoir temperature, and abnormal point is 85-90 ℃. The viscosity is greatly affected by the emulsified water in the range of 50～90 ℃ when the emulsified water content is about 30%.