| 垂直环空空气－泥浆气液两相流实验研究 |
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| 引用本文： | 李相方,胡湘炯,陈庭根,刘希圣,鲁钟琪. 垂直环空空气－泥浆气液两相流实验研究[J]. 中国石油大学学报(自然科学版), 1995, 0(4) |
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| 作者姓名： | 李相方 胡湘炯 陈庭根 刘希圣 鲁钟琪 |
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| 作者单位： | 石油大学石油工程系，清华大学 |
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| 基金项目： | 高等学校博士生专项科研基金 |
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| 摘 要： | 对空气在垂直环空泥浆中流型分布规律及运移规律进行了研究，结果表明，气体在泥浆中流型分布与在水中流型分布相比差别很大，同样流型下气体在泥浆中的上升速度比在水中上升速度略低，但基本接近，然而二者的数学表达式却相差甚远．这是因为在同样的含气率的情况下，在空气－泥浆两相流系统中，从泡状流向团块状流过渡要比空气．水两相流系统中早得多．实验还发现，在常温常压且泥浆粘度高的情况下，空气泥浆两相流系统中不存在泡状流，气体含量小时即为弹状流，因此．气体在水中的流型分布规律及上升速度模型不能简单地用于泥浆作为液相的气液两相流中．
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| 关 键 词： | 井喷；泥浆；两相流动 |
EXPERIMENT STUDY OF AIR-MUD TWO-PHASE GAS-LIQUID FLOW IN VERTICAL CONCENTRIC ANNULUS |
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| Li Xiangfang,Hu Xiangjiong,Chen Tinggen,Liu Zhongqi. EXPERIMENT STUDY OF AIR-MUD TWO-PHASE GAS-LIQUID FLOW IN VERTICAL CONCENTRIC ANNULUS[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1995, 0(4) |
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| Authors: | Li Xiangfang Hu Xiangjiong Chen Tinggen Liu Zhongqi |
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| Abstract: | Gas distribution and migration through mud in vertical concentric annulus werestudied. The result showed that flow patterns for the air-mud flows are quite different fromthat for the air-water flows. For the same flow patterng. gas rise velocities in the mud arealmost equal to that in the water, but mathmatical models of them are quite different. Thetransition from bubble flow to slug flow in air-mud is more earlier than that in air-water flowat the same gas void fraction. It is found that bubble flow is not existence for air-mudtwo-phase gas-liquid flow when viscosity is higher under the normal temperature andpressure. The plug flow is formed when gas void fraction is very low. The models of gasdistribution and migration for air-water two-phase flow are not suitable to that for air-mudtwo-phase flow. |
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| Keywords: | Blowout Mud Two-phase flow |
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