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。
Such as those containing wax, oil, asphalt more charged the media to prevent crystallization of the media, to ensure efficient operation of the automatic control system.
如含蜡质、沥青较多的石油等被控介质，防止介质的结晶，确保自控系统高效运转。
Such as those containing wax, oil, asphalt more charged the media to prevent crystallization of the media, to ensure efficient operation of the automatic control system.
如含蜡质、沥青较多的石油等被控介质，防止介质的结晶，确保自控系统高效运转。
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