| 由两个定向钻孔探孔探钻孔弯曲因素 |
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| 引用本文： | 孙建安.由两个定向钻孔探孔探钻孔弯曲因素[J].中国煤田地质,2001,13(2):84-85. |
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| 作者姓名： | 孙建安 |
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| 作者单位： | 宁夏煤田地质局!银川750011 |
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| 摘 要： | 钻宿民否是导致孔斜的主要原因，当钻孔深度的不超过300米时，钻头便可根据操作者所给压力在软岩层过后的硬岩层层面上垂向铅直钻进，也可根据钻探目的顺层向或逆层向弯曲钻进。
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| 关 键 词： | 高角度岩层 弯曲因素 孔斜 钻孔度 岩石摩擦系数 |
| 文章编号： | 1004-9177(2001)02-0084-02 |
Probe into winding factors of drill hole from two directional drill holes |
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| Abstract: | Whether or not correct drilling comprehensive techniques are main reasons lead to hole deflection. When the depth of drill hole not yet outstrip 300m, the drill bit may be drilling perpendicular downward on the hard rock after through soft rock, along with operation of worker, but on the other hand is also winding drilling, along with operation of worker. |
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| Keywords: | high angle formation winding factor comprehensive technique hole deflection |
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