| H-B流体在小井眼同心环空中轴向层流的运动规律 |
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| 引用本文： | 展宝真,朱法银. H-B流体在小井眼同心环空中轴向层流的运动规律[J]. 钻井液与完井液, 2000, 17(5): 1-5 |
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| 作者姓名： | 展宝真 朱法银 |
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| 作者单位： | 展宝真（中原油田钻井集团公司 河南濮阳） 朱法银（胜利油田职工大学 山东东营） |
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| 摘 要： | 根据不可压缩粘性流体力学及非牛顿流体流变学的基本原理，推导出Herschel-Bulkley流体在小井眼同心环空(合钻杆管体环空、钻杆接头环空及钻铤环空)中轴向层流的运动规律，分别得出了流量、流速和压降的简化解析式，定义了钻杆接头(或钻铤)环空当量长度和压降增比，给出了算例，为小井眼钻井工程的水力设计计算提供了理论依据和实用方法。
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| 关 键 词： | Herschel-Bulkley液体 小眼井 环形空间 层流 流体流动方程 压力降 |
| 修稿时间： | 2000-01-17 |
The axial laminar flow pattern of H-B fluid in the concentric annular of slim hole |
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| Zhan BaozhenZhu Fayin. The axial laminar flow pattern of H-B fluid in the concentric annular of slim hole[J]. Drilling Fluid & Completion Fluid, 2000, 17(5): 1-5 |
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| Authors: | Zhan BaozhenZhu Fayin |
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| Abstract: | The axial laminar flow pattern of H-B fluid in the concentric annular of slim hole is derived based on the base principles of uncompressive viscous fluid mechanics and non-Newtonian fluid rheology. The concentric annular means drill pipe annular, drill pipe joint annular and drill collar annular. The simplified analytical algorithms for flow rate, flow velocity and pressure drop are devived, and the equivalent length of pipe joint or drill collar and the pressure declining ratio are defined, with examples given. It provides a theoretical principle and a practical method for the hydraulic design and calculation in slim hole drilling. |
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| Keywords: | Herschel-Bulkley fluid slim hole annular laminar flow fluid flow equation pressure drop |
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