| 弹塑性致密泥岩用新型尖齿PDC钻头的研制与应用 |
| 投稿时间：2013-03-26 修订日期：2014-11-14 点此下载全文 |
| 引用本文：阮海龙,沈立娜,李春,等.弹塑性致密泥岩用新型尖齿PDC钻头的研制与应用[J].钻探工程,2014,41(12):80-83.RUAN Hai-long,SHEN Li-na,LI Chun,et al. Research and the Application of New Sharp-tooth PDC Bit Used in Elastic-plastic Compact Mudstone[J]. Drilling Engineering, 2014,41(12):80-83. |
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| 中文摘要: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。 |
| 中文关键词:尖齿PDC 钻头 弹塑性致密泥岩 |
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| Research and the Application of New Sharp-tooth PDC Bit Used in Elastic-plastic Compact Mudstone |
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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. |
| keywords:sharp-tooth PDC bit elastic-plastic compact mudstone |
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