The running characteristic of oil pipelines injected with depressant (PPD-ed) and pump operating characteristic are analyzed and an operation optimization model for oil pipelines is established.
对加降凝剂原油管道的运行参数和泵站的运行特性进行了分析，建立了原油管道的运行优化模型。
Reciprocating plunger pump is a kind of major equipment for oil production in oilfield, and its technique function directly influences the normal safe operating of oil unit.
往复式柱塞泵设备是油田采油单位的主要生产 设备，其技术性能的好坏直接影响到采油单位安全生 产的正常运行。
Furthermore, an engineering trial is performed by an industrial heat pump made overseas operating in oil field.
随后利用引进的工业用热泵，结合石油生产企业情况进行了工业试验。
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