西南石油大学学报（自然科学版）Issue(1)：113-118,6.DOI:10.11885/j.issn.1674-5086.2013.12.02.08
注水温度对高凝油油藏水驱油效率模拟研究
A Study on Temperature Effect of Water Displacement Efficiency in High Pour Point Oil Reservoir
摘要
Abstract
Temperature has a great effect on the rheological property of high pour point oil because of its high wax content and high pour point. During the development of high pour point oil reservoir,wax precipitation easily occurs in the conventional water flooding process,leading to low efficiency of water flooding,which has direct impacts on the development performances. A series of laboratory experiments are conducted under circumstances where temperatures of injected water are different to study the influence of temperature on the water displacement efficiency in the P high pour point oil reservoir,South Sudan. The experiments include:one-dimensional long core live oil experiment,one-dimensional long core degassed oil experiment and one-dimensional short core degassed oil experiment. In addition,a 3D four-phase pseudo-component model is established. Wax precipitation is designed in the simulation model,and all the key factors are considered in the high pour point oil reservoir simulation,making the predicting results more accurate. Laboratory investigation and numerical simulation results show that the temperature has great impacts on the water displacement efficiency before the wax appearance temperature (WAT). When the temperature is higher than WAT,oil viscosity is less sensitive to temperature with the temperature increasing,and the rate of increased oil displacement efficiency decreases. So it is suggested that water temperature should be higher than WAT.关键词
高凝油/注水温度/水驱油效率/室内实验/数值模拟Key words
high pour point reservoir/injection temperature/water displacement efficiency/laboratory investigation/numer-ical simulation分类
能源科技引用本文复制引用
徐锋,吴向红,马凯,冯敏,田晓..注水温度对高凝油油藏水驱油效率模拟研究[J].西南石油大学学报（自然科学版）,2016,(1):113-118,6.基金项目
国家科技重大专项（2011ZX05032002；2011ZX05058）。 （）
