摘要
针对双河油田Ⅶ_下层系高温(96.5℃)、低渗的油藏特点,初选出5种耐温聚合物。对5种耐温聚合物再进行耐温、抗盐性能及岩心驱油性能评价。结果表明,聚合物SNF为最佳耐温抗盐聚合物。当聚合物SNF溶液浓度为1.5g/L,注入段塞尺寸0.5 PV时,驱油效率可提高25%以上。
According the characteristics of oil reservoir of Shuanghe Ⅶ in Henan Oilfield such as hight temperature up to 96.5 ℃ and low permeability, five kinds of heat resistant polymers were selected based on physiochemical properties, long thermal stability, and oxygen content less than 1.0 mg/L and viscosity retention. The above five kinds of polymers were evaluated on the heat resistance, salt tolerance and oil flooding. The result showed that the SNF polymer was the best polymer for the oilfield with the oil flooding efficiency in- creased by over 25 %.
出处
《精细石油化工进展》
CAS
2011年第7期1-4,共4页
Advances in Fine Petrochemicals
关键词
高温油藏
耐温聚合物
段塞尺寸
性能评价
high temperature reservoir
heat resistant polymer
slug size
evaluation
