| 卵砾石地层潜孔锤同心跟管钻具的研究 |
| 投稿时间：2006-05-18 修订日期：2006-05-18 点此下载全文 |
| 引用本文：计胜利,郭威,张晓光,等.卵砾石地层潜孔锤同心跟管钻具的研究[J].钻探工程,2006,33(7):52-55.JI Sheng-li,GUO Wei,ZHANG Xiao-guang,et al. Research on DTH Hammer Concentric Simultaneous Casing Drilling Tool in Gravel Strata[J]. Drilling Engineering, 2006,33(7):52-55. |
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| 中文摘要:卵砾石地层是钻探工程中常见的一种典型的不稳定地层。通过分析目前在卵砾石地层的钻进方法，并针对这一地层的特点，提出了潜孔锤同心跟管钻具在该地层中应用的可行性，并分析设计了钻具的原理、结构及特点。结合实验结果，认为潜孔锤同心跟管钻具在卵砾石地层中具有广阔的应用前景。 |
| 中文关键词:卵砾石地层 潜孔锤 同心跟管钻具 |
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| Research on DTH Hammer Concentric Simultaneous Casing Drilling Tool in Gravel Strata |
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| Abstract:Gravel strata is a kind of typical instable layer in drilling engineering. By the analysis of present drilling ways, and according to the characteristics of gravel strata, application feasibility is put forward for DTH hammer concentric simultaneous casing drilling tool in gravel strata, and analysis are made on the structure principle and characteristic of drilling tool. With reference to the experiment results, the DTH hammer concentric simultaneous casing drilling tool is considered to have extensive application prospect in gravel stratum. |
| keywords:gravel strata DTH hammer concentric simultaneous casing drilling tool |
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