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介绍了适用于较高温度及较高矿化度油田地层调剖 (驱 )需要的非离子聚合物PMN/BW弱凝胶类调驱体系。对PMN/BW弱凝胶类调驱体系的成胶性、粘度变化曲线、抗盐性及凝胶成胶后的热稳定性、成胶前后的抗剪切性等性能进行了室内评价试验 ,并在华北油田高 30 - 4 9高温注水井 (114℃ )进行了现场应用 ,结果表明 :通过调驱处理措施 ,不仅使该井的压力剖面得以调整 ,使主力吸水层得到控制 ,潜力层得到充分启动 ,而且整个井组也取得了明显的增油效果 ,8个月内累计增油 14 6 2t。
The nonionic polymer PMN / BW weak gel type water control system suitable for profile control (flooding) formation in higher temperature and higher salinity fields is introduced. The indoor evaluation test was conducted on the properties of PMN / BW weak gelling system such as the gelation, viscosity change curve, salt resistance, thermal stability after gel gelling, shear resistance before and after gelling, The field application of high temperature injection wells (114 ℃) with high temperature of 30 - 49 in Huabei Oilfield was carried out. The results show that not only the pressure profile of the well can be adjusted, but also the main water layer can be controlled and the potential layer can be obtained Fully started up, and the entire well group also achieved obvious oil increase effect, accumulating 14 6 2t oil within 8 months.