| 模拟深井条件下的PDC钻头破岩试验研究 |
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| 引用本文：王克雄,翟应虎,夏宏南,蔡镜仑.模拟深井条件下的PDC钻头破岩试验研究[J].钻探工程,1997,(2):46-47,52.. Experimental Study on The PDC Bit under The Simulated Deep Well Condition[J]. Drilling Engineering, 1997,(2):46-47,52. |
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| 王克雄 翟应虎 夏宏南 蔡镜仑 |
| 石油大学!北京，102200，石油大学!北京，102200，石油大学!北京，102200，石油大学!北京，102200 |
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| 中文摘要:利用深井破岩试验装置模拟不同井深（0～5km）压力条件下对泥岩进行了PDC钻头破岩试验，试验结果表明：随着井深（围压）的增加，岩石强度增加，破碎岩石的切削力增加，同时，PDC钻头齿形和结构对破岩效率影响较大，因此必须按深井条件和岩石特点进行PDC钻头齿形和结构设计，以达到提高机械钻速的目的。 |
| 中文关键词:深井,PDC钻头,岩石强度,齿形,钻头结构 |
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| Experimental Study on The PDC Bit under The Simulated Deep Well Condition |
| Wang Kexiong Zhai Yinghu Xia Hongnan Cai Jinglun |
| University of Petroleum Beijing 102200 |
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| Abstract:The paper describes the rock breaking test of the PDC bit in mudstone under different downhole pressure conditions(from 0 to 5000m). The results indicate that the.cutting force needed for breaking the rock increases with depth (confining pressure); meanwhile, the cutting efficiency is influenced to some degree by the cutter shape of the bit and the bit configuration. Therefor, the cutter shape and the bit configuration should be designed according to the well depth and the rock characteristics so as to increase the penetration rate. |
| keywords:deep well, PDC bit, rock strength, cutter shape, bit configuration. |
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