喷嘴尾部流道的流场分析及结构优化

发布时间：2018-05-24 21:29

本文选题：计算流体动力学 + 水力喷射钻孔　；参考：《高压物理学报》2016年04期

【摘要】：喷嘴是水力水平钻孔设备的核心元件,改善其结构有利于提高低渗透油气资源开采的施工效率。因此基于计算流体动力学(CFD)技术,分析尾部流道结构参数对射流流场的影响,得出以下结论:尾部流道数N=6、倾角α满足15°α30°,喷嘴出口直径d=1.4mm时,喷嘴的破岩和排屑性能较好;合理设计N和d,有利于实现喷嘴自推进和射流破岩两项功能;合理设计α,能有效改善尾部流道的磨损情况,延长喷嘴使用寿命。
[Abstract]:Nozzle is the core component of hydraulic horizontal drilling equipment. Improving its structure is beneficial to improve the construction efficiency of low permeability oil and gas resources mining. Therefore, based on the computational fluid dynamics (CFD) technique, the influence of the structural parameters of the tail channel on the jet flow field is analyzed. The following conclusions are obtained: when the tail channel number N ~ (6), the dip angle 伪 to meet 15 掳伪 30 掳, and the nozzle outlet diameter d=1.4mm, the nozzle's rock breaking and debris removal performance is better; The rational design of N and d is beneficial to realize the self-propulsion of nozzle and the rock breakage of jet, and the reasonable design of 伪 can effectively improve the wear of the tail channel and prolong the service life of nozzle.
【作者单位】：西南石油大学机电工程学院;中国民航西南地区空中交通管理局四川省成都市双流机场;中国石油吐哈油田公司鲁克沁采油厂;
【基金】：中国石油2008年重点项目(2008C-2800)
【分类号】：O358

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