Deflection Analysis of a Tubular String with Connectors#br#
Constrained in a Wellbore

doi:10.11885/j.issn.1674-5086.2013.11.17.03

Abstract

Abstract:

Deflection of a tubular string with connectors constrained in a wellbore includes three cases: no contact，point contact
and wrap contact. The deflection curves of tubular strings under the three cases were obtained on the basis of the fundamental
equations of tubular strings buckling and corresponding boundary conditions. The critical parameters from no contact to point
contact and from point contact to wrap contact were calculated according to the transitional conditions between different contact
cases. The relationship between the critical parameters（φ）and the ratio of the apparent radius of the tubular string to that of
the connector（λ）was analyzed. The results show that when λ is slightly larger than 1，φ is sensitive to λ，but when λ is larger
than 2，φ is not sensitive to λ and tends to stay at a stable value. Take λ=2 for instance，the entire process of contact state
transitions was depicted in detail. The results in this paper can be applied to the analysis of the effect of connectors on tubular
strings buckling in field operation

Key words: deflection, connector, no contact, point contact, wrap contact

CLC Number:

TE931

Huang Wenjun*, Gao Deli. Deflection Analysis of a Tubular String with Connectors#br# Constrained in a Wellbore[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.11.17.03.

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References

[1] Lubinski A，Althouse W S. Helical buckling of tubing
sealed in packers[J]. Journal of Petroleum Technology，
1962，14（6）：655 670.
[2] Paslay P R，Bogy D B. The stability of a circular rod laterally
constrained to be in contact with an inclined circular
cylinder[J]. Journal of Applied Mechanics，1964，31（4）：
605 610.
[3] Mitchell R F. New concepts for helical buckling[J]. SPE
Drilling Engineering，1988，3（3）：303 310.
[4] Mitchell R F. Effects of well deviation on helical buckling[
J]. SPE Drilling & Completion，1997，12（1）：63 70.
[5] Robert F M. A buckling criterion for constant-curvature
wellbores[J]. SPE Journal，1999，4（4）：349 352.
[6] 高德利. 油气井管柱力学与工程[M]. 东营：中国石油
大学出版社，2006.
[7] 高德利. 井眼轨迹控制[M]. 东营：中国石油大学出版
社，1994.
[8] 高德利，高宝奎. 水平井段管柱屈曲与摩阻分析[J]. 石
油大学学报：自然科学版，2000，24（2）：1 3.
Gao Deli，Gao Baokui. Effects of tubular buckling on
torque and drag in horizontal well[J]. Journal of China
University of Petroleum，China，2000，24（2）：1 3.
[9] 高德利，刘凤梧，徐秉业. 弯曲井眼中管柱屈曲行为研
究[J]. 石油钻采工艺，2000，22（4）：1 4.
Gao Deli，Liu Fengwu，Xu Bingye. Study on the buckling
behavior of pipe string in crooked hole[J]. Oil Drilling &
Production Technology，2000，22（4）：1 4.
[10] 高德利，刘凤梧，徐秉业. 油气井管柱的屈曲行为研
究[J]. 自然科学进展，2001，11（9）：976 980.
Gao Deli，Liu Fengwu，Xu Bingye. Analysis of buckling
behaviors of down-hole tubular strings[J]. Progress in Natural
Science，2001，11（9）：976 980.
[11] 李子丰，马兴瑞，黄文虎. 水平管中受压扭细长圆
杆（管）的线性弯曲[J]. 哈尔滨工业大学学报，1994，
26（1）：96 100.
Li Zifeng，Ma Xingrui，Huang Wenhu. The buckling of
a circular rod or pipe laterally constrained to be contact
with a horizontal circular cylinder[J]. Journal of Harbin
Institute of Technology，1994，26（1）：96 100.
[12] 李子丰，马兴瑞，黄文虎. 油气井杆管柱的静力稳定
性[J]. 工程力学，1997，14（1）：17 25.
Li Zifeng，Ma Xingrui，Huang Wenhu. Static stability of
pipe string in oil and gas wells[J]. Engineering Mechanics，
1997，14（1）：17 25.
[13] 刘凤梧. 受圆管约束管柱的后屈曲行为研究[D]. 北京：
清华大学，1999.
[14] 刘凤梧，徐秉业，高德利. 水平圆管中受压扭作用管桩
屈曲后的解析解[J]. 力学学报，1999，31（2）：238 242.
Liu Fengwu，Xu Bingye，Gao Deli. An analytic solution
for post-buckling of tubulars subjected to axial and torsional
loading in horizontal circular cylinders[J]. Acta Mechanica
Sinica，1999，31（2）：238 242.
[15] 高宝奎，高德利. 水平井段管柱螺旋屈曲的数值计
算[J]. 钻采工艺，1997，20（5）：10 11.
Gao Baokui，Gao Deli. Numerical solutions of helical
buckling of tubular strings in horizontal wells[J]. Drilling
& Production Technology，1997，20（5）：10 11.
[16] Gao Guohua，Miska S. Effects of friction on post-buckling
behavior and axial load transfer in a horizontal well[J].
SPE Journal，2010，15（4）：1110 1124.
[17] Gao Guohua，Miska S. Effects of boundary conditions and
friction on static buckling of pipe in a horizontal well[J].
SPE Journal，2009，14（4）：782 796.
[18] 高国华，李琪，李淑芳. 管柱在水平井眼中的屈曲分
析[J]. 石油学报，1996，17（3）：123 130.
Gao Guohua，Li Qi，Li Shufang. A buckling analysis of
pipe string in horizontal boreholes[J]. Acta Petrolei Sinica，
1996，17（3）：123 130.
[19] 高国华，李琪，李淑芳. 弯曲井眼中受压管柱的屈曲分
析[J]. 应用力学学报，1996，13（1）：115 120.
Gao Guohua，Li Qi，Li Shufang. Buckling analysis for
pipe string constrained in curved boreholes[J]. Chinese
Journal of Applied Mechanics，1996，13（1）：115 120.
[20] 高国华，张福祥，王宇，等. 水平井眼中管柱的屈曲和
分叉[J]. 石油学报，2001，22（1）：95 99.
Gao Guohua，Zhang Fuxiang，Wang Yu，et al. Buckling
and bifurcation of pipes in horizontal wells[J]. Acta
Petrolei Sinica，2001，22（1）：95 99.
[21] Mitchell R F. Helical buckling of pipe with connectors
in vertical wells[J]. SPE Drilling & Completion，2000，
15（3）：162 166.
[22] Mitchell R F. Lateral buckling of pipe with connectors in
horizontal wells[J]. SPE Journal，2003，8（2）：124 137.
[23] 刘凤梧，徐秉业，高德利. 封隔器对油管螺旋屈曲的影
响分析[J]. 清华大学学报：自然科学版，1999，39（8）：
104 107.
Liu Fengwu，Xu Bingye，Gao Deli. Packer effect analysis
of helical buckling of well tubing[J]. Journal of Tsinghua
University：Science & Technology，1999，39（8）：
105 108.

Deflection Analysis of a Tubular String with Connectors#br# Constrained in a Wellbore

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