张博为
ZHANG Bowei

• 1:东北石油大学地球科学学院

摘要(Abstract)：

为研究流度低于1.0μm~2/(Pa·s)超低流度油藏的驱油特征,采集杏树岗油田研究区水驱和聚合物驱检查井油砂样品44件进行实验。结果表明:水驱中黏油、低黏油、高黏油、普通稠油体积分数分别为55.0%,31.8%,9.1%,9.1%,聚合物驱巾黏油、低黏油体积分数分别为59.1%,40.9%;水驱见效井段的流度大于0.078μm~2/(Pa·s),不见效的小于0.054μm~2/(Pa·s),不一定见效的为0.054~0.078μm~2/(Pa·s);聚合物驱见效井段的流度大于0.011μm~2/(Pa·s),不见效的小于0.003μm~2/(Pa·s),不一定见效的为0.003~0.011μm~2/(Pa·s);水驱和聚合物驱驱油效率与流度、渗透率都呈对数显著正相关,水驱驱油效率与剩余油黏度呈对数显著负相关,聚合物驱驱油效率与剩余油黏度呈曲线显著相关。研究成果为杏树岗油田及同类油藏剩余油有效开发提供了重要依据。
In order to study the flooded characteristics of the ultra low-mobility(less than 1.0 μm~2/(Pa·s))oil reservoirs,44 oil-sand samples are collected in the water and polymer flooded inspection wells of Xingshugang Oilfield.The experimental results show that the medium,low,high,common heavy viscosity oil volume fractions are 55.0%,31.8%,9.1%,9.1%respectively in the water flooding experiment,while the medium and low viscosity oil volume fractions are 59.1%and 40.9%in the polymer flooding test;for the former flooding,the mobility in the affected well intervals is more than 0.078 μm~2/(Pa·s),less than 0.054 μm~2/(Pa·s)for the uninfluenced sections and 0.054-0.078 μm~2/(Pa·s)for the possibly influenced intervals;for the polymer flooding experiment,the values are correspondingly 0.011 μm~2/(Pa·s),0.003 μm~2/(Pa·s)and 0.003-0.011 μm~2/(Pa·s);the water and polymer flooded displacement efficiencies are obviously,positively and logarithmically correlated with the mobility and permeability,while the water-flooded displacement efficiency is on the contrary with the viscosity of the remained oil versus the polymer-flooded displacement efficiency.The research achievements have provided the important evidences for the effective development of the remained oil in Xingshugang Oilfield and the same kind of reservoirs.

关键词(KeyWords)： 超低流度油藏;杏树岗油田;水驱;聚合物驱;驱油效率;剩余油黏度;含油饱和度
ultra low-mobility oil reservoir;Xingshugang Oilfield;water flooding;polymer flooding;oil displaced efficiency;remained oil viscosity;oil saturation

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气股份公司重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”(2012E-2603)

作者(Author): 张博为
ZHANG Bowei

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