| 自振阀式低压脉冲射流调制器振动特性仿真研究 |
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| 引用本文： | 李文飞,杨永印,夏文安,张勇. 自振阀式低压脉冲射流调制器振动特性仿真研究[J]. 中国石油大学学报(自然科学版), 2007, 31(3): 59-62 |
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| 作者姓名： | 李文飞 杨永印 夏文安 张勇 |
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| 作者单位： | 中国石油大学,石油工程学院,山东,东营,257061 |
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| 基金项目： | 国家自然科学基金;中石油基础研究重点项目 |
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| 摘 要： | 基于脉动低压波克服井底压差提高钻速的机理，并根据自振阀式低压脉冲射流调制器的工作原理，利用Matlab环境下的Simulink系统建立了调制器液压振动力学的计算机仿真模型，对调制器的阀系运动进行了运动仿真。结果显示，调制器上阀和下阀协调振动具有可行性，调制器振动频率随钻头压降的增大线性增加，随钻井液流量、下阀质量、上阀行程的增加而减小。
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| 关 键 词： | 低压脉冲 射流 调制器 振动特性 仿真 |
| 文章编号： | 1673-5005（2007）03-0059-04 |
| 修稿时间： | 2006-06-05 |
Simulation study on vibration characteristics of low-pressure pulses jet modulator with self-vibration valves |
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| LI Wen-fei,YANG Yong-yin,XIA Wen-an,ZHANG Yong. Simulation study on vibration characteristics of low-pressure pulses jet modulator with self-vibration valves[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2007, 31(3): 59-62 |
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| Authors: | LI Wen-fei YANG Yong-yin XIA Wen-an ZHANG Yong |
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| Affiliation: | College of Petroleum Engineering in China University of Petroleum, Dongying 257061, Shandong Province, China |
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| Abstract: | Based on the mechanism of drilling speed increased by low-pressure pulses overcoming bottom-hole pressure difference,and the working principle of the low-pressure pulse jet modulator with self-vibration valves,the simulation model of mechanics of modulator vibration was established by using Simulink system in Matlab environment.And the valves' movement of modulator was simulated.The results show the feasibility of working together of up valve and down valve.The vibration frequency of modulator linear increases with the bit pressure drop increasing,while decreases with the increase of flow rate of drilling fluid,down valve mass and distance of travel of up valve. |
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| Keywords: | low-pressure pulse jet modulator vibration characteristics simulation |
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