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首页> 外文会议>Boundaries of Rock Mechanics: Recent Advances and Challenges for the 21st Century >Prediction of PDC bit drilling force based on rock cutting mechanics theory
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Prediction of PDC bit drilling force based on rock cutting mechanics theory

机译：基于岩石切削力学理论的PDC钻头钻力预测

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摘要

Aimed at the rock in bottomhole under mud column pressure, this paper puts forward to a cutting force model of straight-edge cutter in orthogonal cutting mode, and a model of the cutter in oblique cutting mode by transforming the oblique cutting into an equivalent orthogonal cutting referring to the theory of metal cutting mechanics. To predict cutting force of a PDC cutter with rotmd profile, the micro-edge integration method is used by which the round edge of the cutter could be divided into a series of micro-edges, and the cutting force of each micro-edge could be calculated by utilizing derived straight-edge cutting force models. The model and the corresponding method introduced in this paper have been successfully applied to analyzing and evaluating the performance of PDC bits by means of predicting bit drilling force.
机译：针对泥浆柱压力作用下的井底岩石，提出了将直刃刀具在正交切削模式下的切削力模型，以及在斜切削模式下将斜切削转换为等效正交切削的刀具模型。指的是金属切削力学理论。为了预测具有rotmd轮廓的PDC刀具的切削力，使用了微刃整合方法，通过该方法可以将刀具的圆边分成一系列微刃，并且可以将每个微刃的切削力设为利用导出的直刃切削力模型进行计算。本文介绍的模型和相应的方法已成功地用于预测钻头钻力的分析和评估PDC钻头的性能。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    Yu-Peili; rnGuo-Ximo;

  • 作者单位

    Y.X.Yang@Southwest Petroleum University,Cheng Du,Sichuan,China--D.K.Ma@Southwest Petroleum University,Cheng Du,Sichuan,China--B.Li@Southwest Petroleum University,Cheng Du,Sichuan,China--M.Lin@Southwest Petroleum University,Cheng Du,Sichuan,China--Y.Liu@Southwest Petroleum University,Cheng Du,Sichuan,China--J.Ma@Sichuan Chuanshi Chrida Diamond Bit Co,Cheng Du,Sichuan,China--H.Zeng@Sichuan Chuanshi Chrida Diamond Bit Co,Cheng Du,Sichuan,China--X.L.Fan@Sichuan Chuanshi Chrida Diamond Bit Co,Cheng Du,Sichuan,China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 岩石（岩体）力学及岩石测试;
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