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冲击钻井
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冲击钻井主要在尼日尔、尼日利亚、乍得、利比里亚、加纳、中美洲和一些西方国家使用。
===Manuals, videos and links指南、视频与链接===
* Robert Vuik, Don de Koning and Arjen van der Wal. [http://www.practica.org/wp-content/uploads/services/publications/drilling%20manuals/EN/Percussion%20manual%20drilling%20PRACTICA%20EN.pdf Percussion: Manual Drilling Series. Technical Training Handbook on Affordable Manual Well Drilling]. Practica Foundation, June 2010. French version: [http://www.practica.org/wp-content/uploads/services/publications/drilling%20manuals/FR/Percussion%20manual%20drilling%20PRACTICA%20FR.pdf FORAGE À LA PERCUSSION: Série forage manuel].