| 岩屑床面非均匀颗粒悬浮特性的探讨 |
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| 引用本文： | 王艳辉,罗平亚.岩屑床面非均匀颗粒悬浮特性的探讨[J].西南石油学院学报,1993,15(1):42-48,55. |
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| 作者姓名： | 王艳辉 罗平亚 |
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| 作者单位： | 西南石油学院石油开发系
(王艳辉)，西南石油学院石油开发系(罗平亚) |
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| 摘 要： | 本文从单颗球形颗粒在非均匀紊动流场中的沉降特性出发,根据悬浮机理的分析得到了由环空流场水力及岩屑层移床特性所表征的悬浮条件,并考虑颗粒形状及其浓度效应等因素的影响,最后得到了非球形颗粒阻尼沉降的速度公式,由此评价在给定流场条件下岩屑颗粒悬浮运移的群体特性。
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| 关 键 词： | 紊流 悬浮颗粒 钻井 岩石力学 |
APPROACH TO SUSPENSION PROPERTIES OF NON-HOMOGENEOUS CUTTINGS ON BEDS IN ECCENTRIC ANNULUS |
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| Wang Yanhui Luo Pingya.APPROACH TO SUSPENSION PROPERTIES OF NON-HOMOGENEOUS CUTTINGS ON BEDS IN ECCENTRIC ANNULUS[J].Journal of Southwest Petroleum Institute,1993,15(1):42-48,55. |
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| Authors: | Wang Yanhui Luo Pingya |
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| Affiliation: | Department of Oil Exploitation |
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| Abstract: | Based in the analysis of suspension mechanism , this paper derived the susupension condition from the depositional characteristics of single cuttings particle in non-homogeneous turbulence field, which is described by the annular hydraulics and load-bed properties of cuttings, took into consideration the effects of particle shapes and cuttings concentration, and established the formula of the slip velocity of non-globe cuttings with damped settling, thus evaluated the macroscopic laws of cuttings-suspension transportation under the given flow in eccentric annulus. |
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| Keywords: | Annulus flow Turbulent flow suspended particle cuttings suspension transportation |
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