摘要
利用计算流体动力学技术优化PDC钻头水力结构是一种经济有效的手段。通过对PDC钻头在井底的三维流场数值模拟,考虑喷嘴布置的不同位置、间距及喷射角度等因素的影响,研究流体在井底的流动特性及井底净化机理,优化PDC钻头的水力结构。从工程设计便捷、高效的原则出发,以VB.NET为工具对Phoenics软件进行二次开发,建立专用平台,对不同工况条件下的PDC钻头进行数值模拟。
The technology of Computational Fluid Dynamics has proven to be an economically efficient tool for optimizing the hydraulic structure of PDC bits. In the present study, the advanced development of Phoenics software was carried out by using VB. NET, based on the convenient, highly effective principles in the engineering design. The nozzle layout in terms of bit cutting teeth＇s position distribution, clearance and the jet angle are analyzed with the numerical simulation for the 3-D flow field of PDC bits, with regard to the fluid characteristic, cleaning mechanism, and the optimization of the hydraulic structure of PDC bits. A specific platform is proposed to improve user experience of the numerical simulation of the PDC bits under different operating mode condition.
出处
《石油矿场机械》
2007年第4期1-4,共4页
Oil Field Equipment
基金
国家自然科学基金"基于钻井系统动力学的井眼轨迹预测理论及控制方法研究"(项目编号:50474040)的部分研究内容"岩石破碎学与钻头研究"
四川省重点实验室项目"PDC钻头水力系统计算流体动力学研究"(项目编号:省室基金007)
关键词
PDC钻头
计算流体动力学
仿真
二次开发
PDC bits
computational fluid dynamics （CFD）
simulation
advanced development
