| 迭代法计算油气井密闭环空压力 |
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| 引用本文： | 邓元洲,陈平,张慧丽. 迭代法计算油气井密闭环空压力[J]. 海洋石油, 2006, 26(2): 93-96 |
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| 作者姓名： | 邓元洲 陈平 张慧丽 |
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| 作者单位： | "油气藏地质与开发工程"国家重点实验室·西南石油大学,四川,成都,610500;"油气藏地质与开发工程"国家重点实验室·西南石油大学,四川,成都,610500;"油气藏地质与开发工程"国家重点实验室·西南石油大学,四川,成都,610500 |
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| 摘 要： | 在充分考虑压力和体积耦合变化的基础上,建立了计算密闭环空压力的数学模型,并简要阐述了用迭代法计算环空压力的思路。以文献1中的实例为例,计算了环空温度变化所引起的环空压力增加值。计算表明,同文献1的结果比较,用迭代法计算的环空压力平均小大约10%。文章方法对高温高压井井身结构设计、套管强度设计有一定的指导作用。
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| 关 键 词： | 环空压力 套管 迭代法 |
| 文章编号： | 1008-2336（2006）02-0093-04 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2006-02-27 |
Calculating the pressure in sealed annulus in oil well by iterative method |
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| Deng Yuanzhou,Chen Ping,Zhang Huili. Calculating the pressure in sealed annulus in oil well by iterative method[J]. Offshore Oil, 2006, 26(2): 93-96 |
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| Authors: | Deng Yuanzhou Chen Ping Zhang Huili |
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| Abstract: | Volume and pressure had coupled effect on each other, based on it the authors established mathematic model to calculate pressure in the sealed annulus by iterative method. With example in literature 1 to calculate pressure which changed due to temperature, the result indicated that the pressure in the sealed annulus based on this model was 10 % less than that based on the absolutely rigidity casing model. The method could instruct well structure design and casing intensity design in HP/HT wells. |
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| Keywords: | pressure in the annulus casing iterative method |
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