高温高盐油藏用OYDH调驱剂性能研究及应用  

Behavior and Application of OYDH Profile Control and Oil Displacement Reagent for Oil Reservoir at High Temperature with High Salinity

作　　者：陈德红[1] 辛爱渊[1] 张代森[1] 曲萍萍[1] 商亚男[2] 

机构地区：[1]中石化胜利油田分公司采油工艺研究院,东营257000 [2]中石化胜利油田分公司发电厂,东营257000

出　　处：《精细石油化工进展》2009年第1期1-3,共3页Advances in Fine Petrochemicals

摘　　要：针对高温高盐油藏中存在的水窜现象开展了适用调驱剂攻关研究,研制开发出OYDH调驱剂,该调驱剂是以疏水缔合水溶性聚合物、含有苯环的缓释交联剂和交联引发剂组成。考察了溶液pH、温度、水质矿化度、恒温时间及非均质岩芯对调驱剂性能的影响。结果表明,该调驱剂成胶时间可控,耐温80-120℃,耐盐70 000 mg/L,热稳定性好,能够明显改善岩芯的非均质,并且具有较好的驱油能力。应用该调驱剂在胜坨油田T142X23井进行调剖试验,平均含水量由93.9%下降到92.4%,产油量由16.6 t/d提高到20.3t/d,获得良好的增油降水效果。For the phenomenon of channeling present in oil reservoir at high temperature with high salinity, study of profile control and oil displacement reagent suitable for the oil reservoir was carried out, thus OYDH as the profile control and oil displacement reagent was developed, which was composed of hydrophobie associating water - soluble polymer, cross - linking agent containing aromatic ring and initiator. The effects of pH of solution, temperature, water salinity, heating time at constant temperature and heterogeneous core on the behavior of the profile control and oil displacement reagent were examined. The result showed that the profile control and oil displacement reagent had excellent behavior in controllable gelling time, temperature resistance of 80 - 120℃ and salinity tolerance of 7 000 mg/L, thermal stability, capability to significantly improve the core of the heterogeneity and good ability to flood oil. The profile control and oil displacement reagent was ap- plied in Shengtuo Oilfield T142X23 for profile control. Average water content dropped to 92.4% from 93.9%, and oil production raised to 20.3 t/d from 16.6 t/d showing it had good effects in increasing oil production and decreasing water content.

关 键 词：疏水缔合聚合物 高温高盐油藏 非均质 驱油效果 

分 类 号：TE39[石油与天然气工程—油气田开发工程]