| 流变地层中套管外载的计算方法 |
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| 引用本文： | 邓金根,黄荣樽.流变地层中套管外载的计算方法[J].石油钻探技术,1994,22(4):41-43. |
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| 作者姓名： | 邓金根 黄荣樽 |
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| 作者单位： | 石油大学（北京）岩石力学实验室，石油大学（北京）石油工程系 |
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| 摘 要： | 介绍了流变地层中地层为非线性流变体时套管外载的计算方法及步骤。举例说明，非均匀地应力作用下的地层流变将对套管产生一个大于地应力的非均匀径向外挤力和一个非均匀的切向外载，对套管将产生极大的危害。通过改变套管、水泥环的弹性参数和几何参数可以改善套管的受力状态，这一结论对于流变地层中的套管设计具有重要指导意义。
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| 关 键 词： | 岩石蠕变，套管外载，计算方法，套管柱设计，实例，大庆油田 |
Computing Method of Casing Loads in Creep Formation |
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| Deng Jingen,Huang Rongzun,.Computing Method of Casing Loads in Creep Formation[J].Petroleum Drilling Techniques,1994,22(4):41-43. |
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| Authors: | Deng Jingen Huang Rongzun |
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| Affiliation: | Deng Jingen;Huang Rongzun; |
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| Abstract: | The paper introduces the computing method,procedure and programme of external loads of casingin non-liner creep formation,and illustrates in an example that creep of rock will cause a tangential point load andan unbalanced radial compressional stress on casing, which is bigger than formation strees, which would causedamage to casing.Reselecting elastic and geometric parameters of casing and cement sheath can adjust the distribution of forces to casing. |
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| Keywords: | rock creep casing load computing method casing string design case Daqing Oilfield |
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