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为给水文水井管材选择提供参考依据,根据技术经济学理论从技术经济评价角度选取普通钢管、石油套管、PVC-U井管三种水文水井成井管材,通过水井建设成本、维护和重建费用的分析建立技术经济评价模型,在一定评价期内考虑资金的时间价值,以净终值为最终经济评价指标评价了不同成井管材的技术经济性。结果表明,从长远考虑,PVC-U井管的技术经济性优于普通钢管、石油套管,是水文水井最佳选择的成井材料。
In order to provide a reference for the selection of pipelines for aqueducts and water wells, we selected three types of aquifer pipelines from ordinary steel pipe, oil casing and PVC-U well pipe according to the technical economic theory from the perspective of technical and economic evaluation. Through the cost of well construction, maintenance and reconstruction costs Analyze and establish the technical and economic evaluation model, consider the time value of the funds in a certain evaluation period, and evaluate the technical economy of different well pipes with the net final value as the final economic evaluation index. The results show that, in the long term, the technical economy of PVC-U well pipe is superior to that of ordinary steel pipe and oil casing, and it is the best choice of well-forming material for hydro-water well.