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以多羟基化合物合成的树脂为成胶剂,金属有机物为交联剂的PW系列聚糖树脂类堵水剂,配制简单,有一定的选择性,耐地层水冲刷、热稳定性好,无毒、无刺激性。经在胜利油田进行堵水调剖现场应用,注水井经堵调以后见效明显,封堵了造成水窜的高渗透带或大孔道,减少了无功注水,堵水后各油井原强吸水层吸水量明显下降,综合含水率下降30％-40％,弱吸水或不吸水的层段吸水量相对增加,使油水流度比增加。目前,该产品已在山东瑞星生物化工股份有限公司建成500t/a生产装置,经济与社会效益较好。
The polyhydroxy compound synthesized resin is a gelling agent and the metal organic compound is a cross-linking agent. The PW series polysaccharide resin plugging agent has the advantages of simple preparation, certain selectivity, resistance to formation water flushing, good thermal stability and nontoxicity , Non-irritating. After the application of water-blocking and profile-controlling in Shengli Oilfield, the water injection wells have obvious effect after being blocked by plugging, blocking the high permeable belt or large pore channel that caused the water channeling, reducing the reactive water injection, reducing the original strong water absorption layer Water absorption decreased significantly, the overall moisture content decreased by 30% -40%, weak or non-absorbent layer of water absorption increased relatively, so that the oil-water ratio increased. At present, the product has been built in Shandong Rising Biological Chemical Co., Ltd. 500t / a production plant, economic and social benefits are better.