| 深水喷射井口结构套管水平承载力 |
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| 引用本文： | 王腾,孙宝江. 深水喷射井口结构套管水平承载力[J]. 中国石油大学学报(自然科学版), 2008, 32(5) |
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| 作者姓名： | 王腾 孙宝江 |
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| 作者单位： | 中国石油大学石油工程学院,山东,东营,257061 |
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| 基金项目： | 国家自然科学基金项目(50409007); 国家“863”重大项目(2006AA09A106) |
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| 摘 要： | 提出了喷射结构套管管周扰动土体的抗剪强度增长规律的表达式，分析了扰动土体抗剪强度的增长对API建议的软粘土p-y曲线、管身土抗力和弯矩分布、管身挠曲变形及结构套管水平承载力的影响。研究结果表明：喷射后管周扰动土体的抗剪强度与时间对数近似呈线性关系；随着时间的增加，软粘土p-y曲线的极限土抗力和初始斜率逐渐增大，但增大的幅度逐渐减小；结构套管水平承载力也与其时间对数呈线性关系。
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| 关 键 词： | 结构套管 喷射 p-y曲线 深水 水平承载力 |
Lateral bearing capacity of jetting structural casing of wellhead in deepwater |
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| WANG Teng,SUN Bao-jiang. Lateral bearing capacity of jetting structural casing of wellhead in deepwater[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2008, 32(5) |
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| Authors: | WANG Teng SUN Bao-jiang |
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| Abstract: | A shear strength formula of disturbed soil surrounding a jetted structural casing was presented and its increase law with set-up time increasing was estimated.Based on the shear strength formula,the influences of soil shear strength varying with time on API recommended soft clay p-y curves,soil resistance and moments along casing length,casing distortion and lateral bearing capacity were investigated.The results show that the disturbed soil shear strength increases linearly with logarithmic time increasing.... |
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| Keywords: | structural casing jetting p-y curves deepwater lateral bearing capacity |
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