本书简要叙述了按岩性划分的岩石分类。叙述了各不同地质条件下的各种钻进工艺方法,其中包括水力输送岩心钻进。书中以表格形式列出了依钻杆质量、岩石切削具类型、岩石可钻性级别和一系列其它标志的不同而使用的钻进工艺。全书分 This book gives a brief account of rock classification by lithology. Describes a variety of different geological conditions of the drilling process, including hydraulic transport core drilling. The book lists the drilling process used in table form, depending on the quality of the drill pipe, the type of rock cutter, the level of rock drillability, and a range of other markings. The book points