油管在高次屈曲状态下的最大弯矩和允许座封力

doi:10.3863/j.issn.1000-2634.1989.02.10

西南石油大学学报(自然科学版) ›› 1989, Vol. 11 ›› Issue (2): 93-99.DOI: 10.3863/j.issn.1000-2634.1989.02.10

油管在高次屈曲状态下的最大弯矩和允许座封力

汪天庚蒲洪章

(石油机械系)

收稿日期:1988-07-11 修回日期:1900-01-01 出版日期:1989-04-20 发布日期:1989-04-20

CALCULATION OF MAXIMUM BENDING MOMENT AND ALLOWABLE PACKING FORCE OF TUBING COLUMN

Wang Tian-geng Pu Hong-zhang

（Department of Mechanical Engineering）

Received:1988-07-11 Revised:1900-01-01 Online:1989-04-20 Published:1989-04-20

摘要/Abstract

摘要： 油管在自重和座封力作用下以及井壁约束条件下通常处于高次屈曲状态，根据此特征本文求得了油管可能发生的最大弯矩。其结果是根据螺旋层曲模式求得的最大弯矩的两倍，由此结果导出了计算允许座封力的公式，为油管座封力设评提供了理论的依据和简单可靠的方法。

关键词: 最大弯矩, 座封力, 高次屈曲, 贝塞尔函数, 权残法

Abstract:

The tubing column subjected to weight and reaction forces of constraint applied by the packer and the wall of a well is usually in a multi-wave buckling state. This paper evaluates the maximum bending moment of the tubing, The evaluated value is two times as large as that obtained on the basis of the helical buckling model (Ref, 1). This paper presents the formula used to calculate the allowable packing force. It can be simply used in the design of the tubing selled with a packer.

Key words: Maximum bending moment, Packing force, Multi-wave buckling, Bessel Function, Weighted residuals method

汪天庚蒲洪章. 油管在高次屈曲状态下的最大弯矩和允许座封力[J]. 西南石油大学学报(自然科学版), 1989, 11(2): 93-99.

Wang Tian-geng Pu Hong-zhang. CALCULATION OF MAXIMUM BENDING MOMENT AND ALLOWABLE PACKING FORCE OF TUBING COLUMN[J]. 西南石油大学学报(自然科学版), 1989, 11(2): 93-99.

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油管在高次屈曲状态下的最大弯矩和允许座封力

CALCULATION OF MAXIMUM BENDING MOMENT AND ALLOWABLE PACKING FORCE OF TUBING COLUMN

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