| 煤田泡沫绳钻应用与问题探讨 |
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| 引用本文： | 张晓宏.煤田泡沫绳钻应用与问题探讨[J].煤田地质与勘探,1994,22(2):55-60. |
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| 作者姓名： | 张晓宏 |
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| 作者单位： | 陕西煤田地质局 西安 710054 |
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| 摘 要： | 采用国产设备及自行设计配套的灌排系统首次在国内进行了金刚石泡沫绳钻试验，达到了217.74m的最大应用孔深；分析了试验中获得的钻进时效、纯钻进时间率两项主要效果指标；探讨了影响压降的几个关系问题；基本明确了煤田泡沫金刚石绳钻风量、气压等关键参数的变化规律和泡沫稳定运行的重要性。
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| 关 键 词： | 泡沫钻进 金刚石钻进 绳索取芯 钻压 台月效率 |
| 收稿时间： | 1993-08-15 |
THE APPLICATION OF FOAM DIAMOND WIRE LINE DRILLING IN COAL-FIELD AND DISCUSSION OF SOME PROBLEMS |
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| Zhang Xiaohong.THE APPLICATION OF FOAM DIAMOND WIRE LINE DRILLING IN COAL-FIELD AND DISCUSSION OF SOME PROBLEMS[J].Coal Geology & Exploration,1994,22(2):55-60. |
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| Authors: | Zhang Xiaohong |
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| Institution: | Shaanxi Coal Geology Bureau |
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| Abstract: | he small diameter foam diamond wire line drilling tests have first been made using the equipments and circulation system made in China. The maximum hole depth is 217. 74 m. The variation laws of main parameters are obtained through the tests by analyzing the drilling rate, the pressure fall and so on. It is of current significance to apply foam nush technique to wire line drilling in coal-field for increasing the drilling rate. |
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| Keywords: | foam drilling diamond drilling wire line coring bit weight efficiency of rig-month |
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