井下多参数测量短节的结构耐冲蚀优化分析
Journal: Engineering Technology Development DOI: 10.32629/etd.v7i2.18941
Abstract
实时获取近钻头工程参数测量是旋转导向钻井技术的关键。本文基于应变测试技术研制了一种井下多参数测量短节,但其通讯口活塞环端面在井下存在严重冲蚀。为提升其可靠性,研究重点对该短节的易损结构进行了抗冲蚀优化。值模拟分析表明,结构优化前钻井液最大冲蚀率为2.77×10⁻³kg/(m²·s),优化后降至5.24×10⁻⁴kg/(m²·s),证明结构改进可显著减轻冲蚀损伤。该研究为井下测量工具在颗粒流中的耐久性设计提供了有效方案。
Keywords
冲刷侵蚀；砂粒；测量短节；结构优化
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[8] Li C,Ding T H, Wang P. An experimental rig for near-bit force measurement and drill string acoustic trans mission of BHA[J].Measurement,2011,44(4):642-652.
[9] Hu Z,Xie X H,Ge L,et al.Research on the system of down -hole engineering parameters measure while drilling[J]. Open Petroleum Engineering Journal,2014,7:149-153.
[10] 赵龙,闫怡飞,闫相祯,等.基于NSGA-Ⅱ的近钻头测量短节弹性元件结构优化[J].石油机械,2019,47(12):15-22+30.
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