| 泥晶灰岩地层孔壁坍塌掉块现象及处理 |
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| 引用本文： | 杜金云.泥晶灰岩地层孔壁坍塌掉块现象及处理[J].探矿工程,2006,33(8):51-52. |
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| 作者姓名： | 杜金云 |
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| 作者单位： | 甘肃省地矿局第一地质矿产勘查院 |
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| 摘 要： | 在灰岩地区钻探施工过程中，常见孔壁坍塌、掉块现象，尤其在含泥晶灰岩地层分布区钻进过程中，这种现象尤为突出，轻则影响钻探施工效率，重则造成钻探孔内事故。针对孔内坍塌、掉块现象的征兆及特点，提出了相对应的处理办法。
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| 关 键 词： | 钻孔 泥晶灰岩 坍塌掉块 处理方法 |
| 收稿时间： | 2006/4/30 0:00:00 |
| 修稿时间： | 2006/7/13 0:00:00 |
Treatment to Wall of Hole Collapsing and Breaking in Mud-crystal Limestone Layer |
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| DU Jin-yun.Treatment to Wall of Hole Collapsing and Breaking in Mud-crystal Limestone Layer[J].Exploration Engineering(Drilling & Tunneling),2006,33(8):51-52. |
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| Authors: | DU Jin-yun |
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| Institution: | The 1st Geology and Mineral Survey Institute under Gansu Geology and Mineral Burau |
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| Abstract: | Wall of hole collapsing and breaking often happen in the process of drilling in limestone area, especially in mud-crystal limestone. It can affect the efficiency of drilling and even cause accidents. The relevant methods are put forward according to the evidences and features of collapsing and breaking, and can be referred by relative enterprises. |
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| Keywords: | borehole mud-crystal limestone collapsing and breaking treatment |
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