郑州沿黄水源地不同钻井工艺试验研究

Experimental Study on Different Well Drilling Technologies in Groundwater Resource along the Yellow River in Zhengzhou

以生产科研相结合的方式,在郑州沿黄地下水源地地区使用正循环钻进工艺施工水井8眼,泵吸反循环钻进施工工艺施工水井11眼,通过这2种水井钻进工艺的效率和经济性分析,得出郑州沿黄地下水源地地区使用泵吸反循环钻进施工工艺的最佳成井深度为140.75 m以浅,正循环钻进施工工艺最佳成井深度为140.75 m以深的结论,以此为今后类似地区水井施工钻进工艺选择提供参照依据。

Combining the production and scientific research, 8 water wells were constructed with normal circulation drilling method and 11 water wells were constructed with pump suction reverse circulation drilling method in groundwater resource region along the Yellow River in Zhengzhou. By the analysis on the efficiency and economy of these 2 different drilling tech- nologies, the conclusions were got： in groundwater resource region along the Yellow River in Zhengzhou, the best well depth should be smaller and larger than 140. 75m respectively with pump suction reverse circulation drilling method and with normal reverse circulation drilling method each. The conclusions can be the reference for water well construction in the similar area.