| 振荡脉冲射流喷嘴钻头井底压力特性研究 |
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| 引用本文： | 熊继有,廖荣庆,陈德颉,孙文涛.振荡脉冲射流喷嘴钻头井底压力特性研究[J].西南石油大学学报（自然科学版）,1995,17(1):46-50. |
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| 作者姓名： | 熊继有 廖荣庆 陈德颉 孙文涛 |
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| 作者单位： | 石油工程系 |
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| 摘 要： | 本文以测试喷嘴射流轴心冲击压力为依据，对振荡脉冲射流喷嘴的有效喷距、射流和脉动特性、井底压力分布规律进行了研究分析．结果表明，在相同条件下，脉冲射流喷嘴的有效喷距比普通连续射流喷嘴提高1.5倍，脉动幅值提高1.7倍，井底压力分布更有利于清除井底岩屑。
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| 关 键 词： | 喷嘴 钻井液水学力 钻井液脉冲 喷射钻井理论 喷射式钻头 井底压力 |
| 收稿时间： | 1994-10-21 |
Study on the Bottom Hole Pressure Properties of the Oscillating Pulse Jet-Nozzled Bit |
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| Xiong Jiyou Liao Rongqing Chen Dejie Sun Wentao.Study on the Bottom Hole Pressure Properties of the Oscillating Pulse Jet-Nozzled Bit[J].Journal of Southwest Petroleum University(Seience & Technology Edition),1995,17(1):46-50. |
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| Authors: | Xiong Jiyou Liao Rongqing Chen Dejie Sun Wentao |
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| Institution: | Department of Petroleum Engineering |
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| Abstract: | Basing on the measurement of axial percussive pressure of nozzle jet, this paper investigates the effective jet distance, the jet pulse property, and the bottom hole pressure destribution of the oscillating-pulse jet-nozzled bit. The results show, under the same conditions, that the effective jet distance of pulse-jet nozzle has been raised by 150 %, and pulse amplitued by 170 %, compared with those of 3 common jet nozzle. Therefore the bottom hole pressure distributions is more advantageous to the removal of bit cuttings. |
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| Keywords: | Nozzle Drilling fluid pulse Jet drilling theory Jet bit Bottom hole pressure |
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