煤层气地质学11 煤层气勘探开发技术

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直井钻井现场
井组布置
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晋试1
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水平井钻井现场
丛式井
5LZ165-7Y螺杆
风动潜孔冲击器
分枝水平井
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第十一章 煤层气的勘探开发技术
第一节 钻采工艺技术
第二节 煤层气的开采技术
第三节 煤层气（瓦斯）抽放方法
第一节 钻采工艺技术
一、布井方式
1、直井 单井、井组
2、水平井 丛式井、分枝水平井、羽状水平井
3、采空区钻井
直井钻井现场
GZ-2600钻机 丛式中配套钻具
三牙轮镶齿钻头 进尺150-300m
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