| 地浸砂岩型铀矿弹塑性致密泥岩钻头的研究与应用 |
| 投稿时间：2009-05-05 修订日期：2009-05-05 点此下载全文 |
| 引用本文：要二仓,张富兰,杨爱军,等.地浸砂岩型铀矿弹塑性致密泥岩钻头的研究与应用[J].钻探工程,2009,36(6):72-75.yaoercang,ZHANG Fu-lan,YANG Ai-jun,et al. Research and Application of Bits for Drilling elastic-plastic dense mudstone in In-Situ Leaching Sandstone Style Uranium Deposits[J]. Drilling Engineering, 2009,36(6):72-75. |
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| 基金项目:中国核工业地质局“地浸砂岩铀矿中—深孔钻探技术研究”项目(编号：DK2006) |
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| 中文摘要:针对北方地浸砂岩型铀矿超过400 m钻孔钻进中弹塑性致密泥岩钻进效率低的问题，研究试验了钻头，提高了钻进效率，总结了操作技术。用Φ104 mm中八角阶梯肋骨钻头钻进较软弹塑性致密的光滑的红褐色、浅绿色“打滑”泥岩；用Φ104 mm中八角阶梯肋骨钻头钻进较软弹塑性致密的灰色致密泥岩；用Φ104 mm交错式圆片状复合片钻头钻进脆性较大的黑灰色弹塑性致密泥岩；用Φ104 mm交错式圆片状复合片钻头钻进灰白色脆性较大的弹塑性致密泥岩；用Φ104 mm双环式齿形复合片钻头钻进弹塑性致密硬泥岩。 |
| 中文关键词:弹塑性致密泥岩 阶梯肋骨钻头 交错式圆片状复合片钻头 齿形复合片钻头 |
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| Research and Application of Bits for Drilling elastic-plastic dense mudstone in In-Situ Leaching Sandstone Style Uranium Deposits |
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| Abstract: In view of the low drilling efficiency of elastic plastic dense mudstone in more than 400 meters of holes in north-situ leaching sandstone-type uranium deposits,research test was made on bit to improve the situation. Φ104 mm octagonal step rib bit was chosen for soft elastic-plastic dense smooth reddish brown and light green mudstone; Φ104 mm octagonal step rib bit was chosen for soft elastic-plastic dense gray mudstone; Φ104 mm staggered round flake PDC bit was chosen for brittle-plastic high dense black gray mudstone; Φ104 mm staggered round flake PDC bit was chosen for brittle-plastic high dense white mudstone; and Φ104 mm tooth shape PDC bit was chosen for hard-plastic high dense mudstone. |
| keywords:elastic-plastic dense mudstone step rib bit staggered round flake PDC bit tooth shape PDC bit |
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