The formation plugging effect caused by in situ wax crystallization and oil solidification were considered.
模型中考虑了地层中的析蜡过程和原油凝固及由此导致的地层堵塞。
The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
采用红外光谱仪、 核磁共振波谱仪对聚合物的合成特征基团进行了表征，并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。
Sodium acrylate grafted polypropylene wax was synthesized by solution technique, and its thermal stability and crystallization behavior were characterized.
采用溶液法制备了离聚物聚丙烯蜡接枝丙烯酸钠，对其热稳定性和结晶性能进行了表征。
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