液动冲击回转钻井机械钻速的仿真

The Simulation of the Penetration Rate(ROP) of the Hydraulic Percussion Drilling

结合三牙轮钻头有关的理论 ,建立了液动冲击回转钻井钎头的真实的数学模型、井底模型和钎头牙齿与井底岩石的互作用模型 ,用计算机仿真方法预测出了液动冲击回转钻井的机械钻速。使用表明 ,该模型可靠 ,计算结果与实际机械钻速基本一致。

Benefiting from the dynamic model, the geometric structure model and the theory of the roller cone bit, I establish the mathematical model of the nager, the mathematical model of the real bottom hole and the mathematical model between the tooth and the rock of the hammer bit. Hence the penetration rate of the hydraulic percussion drilling can be predicted by simulation. Field tests show the models are reliable and the results which I predict are as precise as that in the field.