蠕变性地层中套管有效外挤压力的计算方法探讨

李子丰, 杨海军, 陈飞

李子丰, 杨海军, 陈飞. 蠕变性地层中套管有效外挤压力的计算方法探讨[J]. 石油钻探技术, 2014, 42(3): 13-15. DOI: 10.3969/j.issn.1001-0890.2014.03.003
引用本文: 李子丰, 杨海军, 陈飞. 蠕变性地层中套管有效外挤压力的计算方法探讨[J]. 石油钻探技术, 2014, 42(3): 13-15. DOI: 10.3969/j.issn.1001-0890.2014.03.003
Li Zifeng, Yang Haijun, Chen Fei. The Calculation of the Effective External Pressure on Casing in Creep Formation[J]. Petroleum Drilling Techniques, 2014, 42(3): 13-15. DOI: 10.3969/j.issn.1001-0890.2014.03.003
Citation: Li Zifeng, Yang Haijun, Chen Fei. The Calculation of the Effective External Pressure on Casing in Creep Formation[J]. Petroleum Drilling Techniques, 2014, 42(3): 13-15. DOI: 10.3969/j.issn.1001-0890.2014.03.003

蠕变性地层中套管有效外挤压力的计算方法探讨

基金项目: 

国家自然科学"考虑钻井液动力润滑作用的旋转钻柱涡动状态研究(No.51244004)"和"基于最小功耗率原理和钻井液动力润滑作用的钻柱涡动理论与实验研究(No.51374183)"资助。

详细信息
    作者简介:

    李子丰(1962- ),男,河北迁安人,1983年毕业于大庆石油学院钻井工程专业,1992年获中国石油大学(北京)油气井工程专业博士学位,1992-1994年为哈尔滨工业大学力学博士后,教授,博士生导师,主要从事油气井杆管柱力学的研究。系本刊编委。联系方式:(0335)8079211,zfli@ysu.edu.cn。

  • 中图分类号: TE21

The Calculation of the Effective External Pressure on Casing in Creep Formation

  • 摘要: 在套管柱设计中,套管外挤压力的计算十分重要。在《钻井手册(甲方)》中,蠕变性地层段的套管外挤压力取为上覆岩层压力,而SY/T 5724—2008《套管柱结构与强度设计》中却将蠕变性地层段套管的外挤压力与岩石的泊松比联系起来,二者不相容。结合钻井施工过程的岩石力学理论,对蠕变性地层段的套管有效外挤压力进行分析。结果表明,SY/T 5724—2008《套管柱结构与强度设计》中关于蠕变性地层段的套管有效外挤压力的计算公式是错误的。建议采用《钻井手册(甲方)》中的蠕变性地层段的套管有效外挤压力计算公式进行套管柱结构设计。
    Abstract: In the design of casing string,the calculation of external pressure on casing is very important.In the Drilling Manual(Party A),the overburden pressure of the formations is taken as the external pressure on casing in the creep formation section,while the standards of The Structure and Strength of the Casing String Design(SY/T 5724-2008)sets the external pressure of casing as a function of rock Poisson’s ratio.Combining drilling process and rock mechanics theory,the external pressure on casing in the creep formation section is analyzed.The result shows that the formula for effective external pressure on casing in creep formation section in the standards of The Structure and Strength of the Casing String Design(SY/T 5724-2008)is incorrect.It is recommended that the formula for effective external pressure on casing in creep formation section in Drilling Manual(Party A)be used in casing design.
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出版历程
  • 收稿日期:  2013-02-27
  • 修回日期:  2013-11-04
  • 刊出日期:  1899-12-31

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