| Robertson—Stiff流体管流与环流轴向流动规律研究 |
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| 引用本文： | 汪海阁,李相方,刘希圣.Robertson—Stiff流体管流与环流轴向流动规律研究[J].石油地质与工程,1996(5). |
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| 作者姓名： | 汪海阁 李相方 刘希圣 |
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| 作者单位： | 北京石油勘探开发科学研究院
(汪海阁)，石油大学
(李相方)，石油大学(刘希圣) |
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| 基金项目： | “Robertson-Stiff流体管流与环流轴向流动规律研究”系国家教委博士点基金项目“井眼系统动力稳定性研究”的一部分 |
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| 摘 要： | RS模式是近年来提出的高精度流变模式,但由于缺乏与之相配套的钻井水力学方面的计算模式,影响了该模式的推广应用。文中从RS流体的本构方程出发,理论上推导了RS流体在钻柱内和同心环空中作轴向层流动时的流速、流量、压耗及流核尺寸的大小。对模式的验证结果表明,文中推导的模式可用于预测钻柱内和环空中水力参数的大小。
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| 关 键 词： | 钻井液 环形空间 钻柱 非牛顿流体 轴向流 |
Axial Flow of RS Fluid in Pipe and Annulus |
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| Wang Haige,Li Xiangfang,Liu Xisheng.Axial Flow of RS Fluid in Pipe and Annulus[J].Petroleum Geology and Engineering,1996(5). |
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| Authors: | Wang Haige Li Xiangfang Liu Xisheng |
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| Abstract: | In recent years, a new high accuracy rheological model-RS model was proposed by Robertson -stiff. Owing to lack of calculating formula, this model has been restricted in application. According to RS constituent equation we derive the velocity of flow, flow rate, pressure loss and the size of unsheared plug-flow as RS fluid flowing in pipe and concentric annulus under axial laminar condition. Through verification, the results show that the formula can be used in predicting. |
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| Keywords: | Drilling fluid Annular space Drill steam Nonnewtonian fluid (Axial flow) |
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