Computation Model for Collapse Strength of the Casing Wear

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Abstract:

With the combination of theoretical analysis, numerical simulation and actual test, the factors and rules impacting the collapse strength are studied. The collapse strength of the casing wear presents changes of exponent, power function, and linear trend with the residual casing wall thickness, wear radius and axial load respectively. Based on this, the computation model of collapsing strength for the whole casing wear has been established and the model is tested for verification by computing collapse strength of non-casing wear. The study results provide a guide for design of the casing sting strength and down-hole safety.

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Periodical:

Advanced Materials Research (Volumes 403-408)

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496-501

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November 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Yukihisa Kuriyama, Yasushi Tsukano. Toshitaro Mimaki Effect of wear and bending on casing collapse strength. SPE 24597. Washington, D. C.: Society ofPetroleum Engineers, 1992, pp.543-552.

DOI: 10.2118/24597-ms

Google Scholar

[2] Song J. S., et al. The Internal Oressure Capacity of Crescent-Shaped Wear Casing.IADC/SPE 23902. IADC/SPE Drilling Conference held in New Orleans, Louisiana, February, 1992, pp.11-17.

DOI: 10.2118/23902-ms

Google Scholar

[3] Zeng Dezhi, Lin Yuanhua, Shi Taihe. New algorithm of collapsing strength of wearing casing [J]. Natural Gas Industry. 2005, 25(2) : 78-80. (in Chinese).

Google Scholar

[4] Liao Hualin, Guan Zhichuan, Ma Guangjun. Remaining strength calculation of internal wall worn casing in deep and ultra-deep wells[J]. Engineering Mechanics. 2010, 27 (2) : 250-254. (in Chinese).

Google Scholar

[5] Han Jianzeng, Li Zhonghua, Zhang Yi. Finite element analysis on effect of wear casing collapse strength [J]. Natural Gas Industry, 2003, 23(5): 51-53. (in Chinese).

Google Scholar

[6] Zeng Dezhi, Gong Longxiang, FU Jianhong, et al. Study on Prediction of Abrasion Amount of and Calculation Method for Post-abrasion Collapse Strength of Full-length Well Casings[J]. STEEL PIPE, 2010, 39(7) Supplement: 11-16. (in Chinese).

Google Scholar

[7] Wang Changjin. Friction and wear research of the drill pipe and casing [D]. QinHuangdao: YanShan University, 2007. (in Chinese).

Google Scholar

[8] Li Liankun. Structural mechanics [M]. Beijing: higher education press, 1996. Third edition. (in Chinese).

Google Scholar

[9] Song Gencai. Study on Casing Damage Mechanism and Prevention [D]. DongYing: China University of Petroleum, (2010).

Google Scholar

[10] Tamano T, Mimake T, Yanagimoto S A. New empirical formula for collapse resistance ofcommerdal easing[J] . Journal of Energy Resources Technology, 1983, 43(5) : 117-121.

Google Scholar