To solve severe wax troubles in oil production Wells at Shenyang oil fields, Liaohe, a paraffin control method by using polyurethane coated tubing (PUCT) is developed.

沈阳油田各区块油井结蜡严重，为此开发了聚氨酯涂层油管防蜡法。

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The paraffin control unit also can be used for surface process, so as to be effective measures on paraffin control and pour point depression for crude oil gathering pipeline.

该防蜡器亦可用于地面流程，作为原油集输管线的防蜡、降凝有效措施。

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The device mainly included heat-pipe vacuum solar air collector system, paraffin latent heat storage system, drying system, automatic control system.

该装置主要包括热管真空太阳能空气集热系统，石蜡相变储热系统，干燥系统，自动控制系统四个部分。

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