新疆红山嘴油田红003稠油掺水的流动特性

针对新疆红山嘴油田红003井区稠油特性以及集输难题,结合该井区的地形特征,对比分析了常用稠油输送方法的优势与不足,提出了红003井区稠油掺水集输方法。以红003井区原油T1和TA为研究对象,采用原油含水率、流变学及密度测试方法,评价了两种原油的基本性质、流变与粘温特性;采用水平环道装置,对两种原油掺水的反相点及降粘减阻效果进行了试验。结果表明:红003井区原油T1和TA分别属于典型的普通稠油与特稠油,可以采用掺水等措施提高其流动性;其W/O型乳状液反相点分别约为40%和45%;当油水混合液含水率分别大于50%和55%时,在60～70℃的温度范围内管流表观粘度均在100mPas左右,降粘减阻效果显著,可实现顺利集输。

Water blending flow property of Hong 003 heavy oil of Hongshanzui Oilfield in Xinjiang

For the properties of heavy oils produced from Hong 003 Block in Hongshanzui Oilfield of Xinjiang and their gathering and transportation problems,common transportation technologies for heavy oils are contrasted,and considered the topographical features of this block,a gathering method with water blending for this heavy oils is proposed.Taking crude oils T1 and TA of Hong 003 Block as a study subject,their basic properties,rheological and viscosity-temperature behaviors are tested and analyzed using crude oil water cut,rheological and density test methods,and the viscosity and drag reduction effects of oil-water flows for the two heavy oils are evaluated by using a flow testloop.Results show that crude oils T1 and TA belong to typical general heavy oil and extra heavy oil respectively,their flowability can be improved by blending water with the heavy oils or other methods.The phase inversion points of water in oil emulsions are about 40 wt% and 45 wt%.When the water cuts of the two heavy oils blended with water are higher than 55 wt% and 60 wt%,all of the apparent viscosities of their oil-water flows are about 100 mPa?s under the temperature range of 60～70 ℃,presenting a significant viscosity reduction effect.Therefore,the Hong 003 heavy oils blended with water can be gathered successfully.