PDC钻头切削齿破岩仿真与试验分析  

Rock-breaking Simulation and Experimental Analysis of PDC Bit Cutter

作　　者：邓敏凯 伍开松[2] 胡伟 

机构地区：[1]江西省天然气投资有限公司 [2]西南石油大学 [3]江西省机械工业设计研究院

出　　处：《石油机械》2014年第1期10-13,共4页China Petroleum Machinery

基　　金：国家科技重大专项(2008ZX05022)

摘　　要：为了利用计算机仿真技术对PDC钻头切削齿的破岩效果进行分析预测，并为PDC钻头优化设计提供数据依据，建立了PDC钻头切削齿破岩仿真模型，研究前倾角和侧倾角的变化对PDC钻头切削齿破岩效果的影响规律。仿真结果与试验结果对比分析证明所建立的PDC钻头切削齿破岩仿真模型可行。分析结果表明，前倾角在15°～20°时，PDC钻头切削齿破岩效果比较好，侧倾角在5°时破岩效果最好，且齿遭破坏的概率相对较低。The simulation model for PDC bit cutter rock-breaking was established in order to make use of computer simulation technology to analyze and predict the rock-breaking effect of the cutter and to provide the data for the design optimization of the bit. The influence law of the variation of front rake angle and side rake angle on PDC rock-breaking effect was studied. A comparative analysis of the simulation result and the test resuh proves that the established simulation model is feasible. The analysis shows that when the front rake angle is between 15°and 20°, the rock-breaking effect of the PDC bit cutter is desirable. When the side rake angle is 5°, the rock-breaking effect is best and the probability of tooth damage is relatively low.

关 键 词：PDC钻头 切削齿 破岩 仿真 ABAQUS 前倾角 侧倾角 

分 类 号：TE921[石油与天然气工程—石油机械设备]