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[喷射式孔底反循环钻进技术]全书共分五章:反循环钻进发展简况;喷反钻具的构造和工作原理;喷反接头的设计、加工及测试;喷反钻进工艺;小口径金刚石喷反钻进。并对喷反技术在水文地质抽水试验工作中的应用也做了介绍,对提高硬、脆、碎复杂地层取心质量,有实用价值。(多含水层混合井流理论及流量测并法]多含水层混合井流理论及流量测井法是水文地质勘探中一项行之有效的理论和方法。适合于有垂向水流运动的井孔的含水层和隔水层的划分及含水层的层位、厚度、渗
[Injection hole bottom reverse circulation drilling technology] The book is divided into five chapters: the development of reverse circulation drilling; spray reverse drilling tool structure and working principle; spray reverse joint design, processing and testing; spray reverse drilling process; Small diameter diamond spray reverse drilling. The application of spray inversion technology in hydrogeological pumping test is also introduced. It is of practical value to improve the coring quality of hard, brittle and broken complex formations. (Multi-aquifer mixed well flow theory and flow measurement and method] Multi-aquifer mixed well flow theory and flow logging method is an effective theory and method in hydrogeological exploration. It is suitable for wells with vertical flow motion Hole aquifers and aquifers division and aquifer horizon, thickness, seepage