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首页> 外文期刊>Journal of Petroleum Science & Engineering >Cutter layout optimization for reduction of lateral force on PDC bit using Kriging and particle swarm optimization methods
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Cutter layout optimization for reduction of lateral force on PDC bit using Kriging and particle swarm optimization methods

机译：使用Kriging和粒子群优化方法，切割器布局优化用于减少PDC位上的横向力

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摘要

Polycrystalline diamond compact (PDC) bits are the dominant bit-types in oil and gas fields all over the world. Reducing the lateral force on PDC bits plays an important role in reducing drilling vibration and improving the service life of PDC bits. However, balancing the lateral force on PDC bit through the cutter layout design cannot precisely meet design requirements, especially after the bits wear. There is a large unbalanced lateral force when the bit is worn. In this paper, considering the bit wear, a cutter layout optimization model for reducing the lateral force is proposed. A models of wear and force for PDC cutters are built. Then, the optimal approach for lateral force on PDC bits is discussed, and an optimization case for a PDC bit is presented. The results show that the proposed zero point traversal (ZPT) algorithm can be used to calculate the unknown parameters in force and wear models of cutters. The proposed optimal approach has high computational efficiency, and can perform multiparameter linkage adjustment. The optimization case shows that there is a significant reduction of the lateral force after cutter layout optimization. The stability of the bit is enhanced, and the service life of PDC bits is improved.
机译：多晶钻石块（PDC）位是世界各地石油和天然气场中的主要位类型。减少PDC位上的横向力在减少钻井振动和改善PDC位的使用寿命方面起着重要作用。然而，通过刀具布局设计平衡PDC位上的横向力不能精确地满足设计要求，尤其是在位磨损之后。当钻头磨损时，存在大的不平衡侧向力。在本文中，考虑到位磨损，提出了一种用于减小横向力的切割器布局优化模型。建立了一种PDC切割器的磨损和力的模型。然后，讨论了PDC比特上的横向力的最佳方法，并呈现了PDC位的优化案例。结果表明，所提出的零点遍历（ZPT）算法可用于计算切割器的力和磨损模型的未知参数。所提出的最优方法具有高的计算效率，并且可以执行多次电流表连接调整。优化壳体表明，切割器布局优化后横向力显着降低。增强了该比特的稳定性，并且改善了PDC比特的使用寿命。

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