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为了提高高含水窜流型油藏注入水有效利用率,封堵高渗透窜流通道,研制开发出了OYZX深部封窜剂。该封窜剂通过其自身发生形变、恢复作用,封堵高渗透窜流通道,实现深部液流转向。室内研究显示,该封窜剂韧性好、可任意变形、不易破碎断裂、耐温耐盐、热稳定性好;可通过调节该封窜剂使用浓度、控制注入压力,实现定位封堵高渗透窜流通道。将该封窜剂与OYDJ调剖剂组合使用,在胜利孤东采油厂进行深部封窜试验,获得较好效果。
In order to improve the efficient utilization of water injected into high-water channeling reservoirs and to block high-permeable channeling channels, a deep OYZX sealing agent has been developed. The sealing agent through its own deformation, recovery, sealing high permeability channeling channel to achieve deep flow steering. Laboratory studies have shown that the sealing agent has good toughness and can be randomly deformed, not easily broken and broken, and has good temperature and salt resistance and good thermal stability. By adjusting the concentration of the sealing agent and controlling the injection pressure, the sealing and penetrating high permeability can be achieved Flow channel. The sealing agent and OYDJ profile control agent used in combination, in the victory Gudong oil production plant deep seal channeling test, get better results.