| 弹塑性致密泥岩用新型尖齿PDC钻头的研制与应用 |
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| 引用本文： | 阮海龙,沈立娜,李春,欧阳志勇,吴海霞,陈云龙.弹塑性致密泥岩用新型尖齿PDC钻头的研制与应用[J].探矿工程,2014,41(12):80-83. |
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| 作者姓名： | 阮海龙 沈立娜 李春 欧阳志勇 吴海霞 陈云龙 |
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| 作者单位： | 北京探矿工程研究所,北京100083 |
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| 摘 要： | 分析了常规复合片钻头钻遇弹塑性致密泥岩钻进效率低的主要原因，并在此基础上研制了适用于该种地层的新型尖齿PDC钻头。通过对PDC切削齿几何结构的改进、切削结构和水力结构的优化设计而研制的新型钻头，在现场试验中取得了良好的钻进效果。平均寿命高达300 m，平均钻进时效3～4 m，解决了弹塑性致密泥岩钻进效率低的难题，为类似地层的钻探施工提供了一种高效实用的新产品。
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| 关 键 词： | 尖齿PDC 钻头 弹塑性致密泥岩 |
| 收稿时间： | 2013/3/26 0:00:00 |
| 修稿时间： | 2014/11/14 0:00:00 |
Research and the Application of New Sharp-tooth PDC Bit Used in Elastic-plastic Compact Mudstone |
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| RUAN Hai-long,SHEN Li-n,LI Chun,OURANG Zhi-yong,WU Hai-xia and CHEN Yun-long.Research and the Application of New Sharp-tooth PDC Bit Used in Elastic-plastic Compact Mudstone[J].Exploration Engineering(Drilling & Tunneling),2014,41(12):80-83. |
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| Authors: | RUAN Hai-long SHEN Li-n LI Chun OURANG Zhi-yong WU Hai-xia and CHEN Yun-long |
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| Institution: | (Beijing Institute of Exploration Engi neering, Beijing 100083, China) |
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| Abstract: | The main reasons of low drilling efficiency in elastic-plastic compact mudstone are analyzed.On this basis, a new type bit with sharp-tooth PDC was developed.The optimal design in geometric structure of PDC, cutting structure and hydraulic structure makes a good performance of the bit.Compared with ordinary PDC bits, it provides longer service life and higher drilling efficiency （average in 300m and 3~4m/h respectively） in elastic-plastic compact mudstone drilling. |
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| Keywords: | sharp-tooth PDC bit elastic-plastic compact mudstone |
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