| 基于三线流模型的垂直裂缝井采油指数研究 |
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| 引用本文： | 赵志成.基于三线流模型的垂直裂缝井采油指数研究[J].企业科技与发展,2009(9):48-50. |
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| 作者姓名： | 赵志成 |
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| 作者单位： | [1]长江大学石油工程学院,湖北荆州434023 [2]油气钻采工程湖北省重点实验室,湖北荆州434023 |
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| 基金项目： | 国家自然科学基金资助项目,项目名称：“特低渗透油层整体压裂两相渗流理论研究”,项目编号：10772023. |
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| 摘 要： | 针对低渗透地层垂直裂缝井的渗流过程,考虑了启动压力梯度和介质变形系数的影响,建立了三线流模型。根据此模型可得到不同地层及裂缝参数条件下油井采油指数变化规律。计算结果表明：在相同的生产压差条件下,采油指数随着变形系数的增大而减小,随着启动压力梯度的增大而减小,随着裂缝半长增大而增大。
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| 关 键 词： | 变形介质 低渗透油藏 垂直裂缝井 三线流模型 |
A Study on Oil Productivity Index of Wells with Vertical Fracture Based on Model for Measuring Flow by Using 3-Pendulum Wires |
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| Authors: | ZHAO Zhi-cheng |
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| Institution: | ZHAO Zhi-cheng (1. School of Oil Engineering of Yangtze University, Jingzhou Hubei 434023; 2. Hubei Key Laboratory of Drilling and Production Engineering for Oil and Gas, Jingzhou Hubei 434023) |
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| Abstract: | In response to the flow process of wells with vertical fracture in low permeability reservoir, the model for measuring flow by using 3-pendulum wires is built after taking into consideration the impact of starting pressure gradient and deformation medium index. With this model, it is possible to get the changing law of oil productivity index of different layers and parameters. The calculation results indicates the following fact： under the same pressure difference, oil productivity index is deceasing with the increasing of deformation index or starting pressure gradient and increasing with the increasing of semi-major axis of fractures. |
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| Keywords: | deformation medium low permeability reservoir wells with vertical fracture model for measuring flow by using 3-pendulum wires |
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