Abstract: Based on the analysis of the remanufacturing process of oil drilling and production equipment, a remanufacturing cost evaluation method is proposed by quantitatively evaluating the cost expenditure of each remanufacturing step. This method focuses on the influence of process cost, energy consumption cost and environmental cost on remanufacturing of equipment parts. And a strategy to evaluate remanufactureability directly from the cost consumption is obtained. As the application of this method, we take the reproductivity of waste oil drill pipe and the reproductivity evaluation of drilling pump crankshaft as an example. The test results indicate that our method can well evaluate the remanufactureability of the petroleum drilling and production equipment parts. As a whole，the proposed method is helpful to supplement the existing evaluation system. It is effective to guide the remanufacturability judgment of key parts of oil drilling and production equipment.

Key words: Petroleum drilling and production equipment, Remanufacturability, Critical components, Cost assessment

摘要： 在分析石油钻采设备再制造流程的基础上，通过定量评估各再制造环节的成本支出，提出一种再制造性的成本评估方法。该方法着重考虑了工艺性成本、能耗性成本及环境性成本等因素对设备零部件再制造性的影响，提出直接从成本消耗角度评估再制造性的策略；废旧石油钻杆的再制造性和钻井泵曲轴的再制造性评估作为示范，对该方法进行应用测试。结果表明，所提方法可较好地反映设备零部件的再制造性成本支出，对现有评价体系形成有益补充，对石油钻采设备关键零部件的再制造性判定有一定的指导意义。

关键词: 石油钻采设备, 再制造性, 关键零部件, 成本评估