Mechanical Study of Completion String With Multi-packer for High Pressure Gas Wells

doi:10.11885/j.issn.1674-5086.2015.10.27.21

Abstract

Abstract: The string with multi-packer, which is recommended by Norsok D010 standard, is an important type of high temperature high-pressure completion string. However, compared with the single packer, the force and deformation of completion string with multi-packer are more complicated, and the local trap pressure does great damage to pipe string. Therefore, the mechanical model with consideration of the end effect, deformation effect and effect of thermal expansion and contraction as well as helical and sinusoidal buckling effect was established. Besides, calculation based on field condition was performed. The results indicate that the force and deformation of string are greatly affected by the packer depth and wellhead temperature and pressure, and effect of multi-packer on mechanical behavior of string should be considered in the string design and evaluation.

Key words: packer, mechanical analysis, completion string, axial deformation, high temperature high-pressure gas well

CLC Number:

TE256

ZHANG Zhi, WANG Bo, LI Zhong, LI Yanjun, ZHANG Chao. Mechanical Study of Completion String With Multi-packer for High Pressure Gas Wells[J]. 西南石油大学学报(自然科学版), 2016, 38(6): 172-178.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2015.10.27.21

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2016/V38/I6/172

References

[1] 张智,周延军,付建红,等. 含硫气井的井筒完整性设计方法[J]. 天然气工业, 2010, 30(3):67-69. doi:10.3787/j.issn.1000-0976.2010.03.017 ZHANG Zhi, ZHOU Yanjun, FU Jianhong, et al. A method of well integrity design for sour gas wells[J]. Natural Gas Industry, 2010, 30(3):67-69. doi:10.3787/j.issn.1000-0976.2010.03.017
[2] LOGINOV A. Plug and abandonment applications for inflatable packers in the gulf of Mexico, USA[C]. SPE 23923, 2013. doi:10.4043/23923-MS
[3] 张智,顾南,杨辉,等. 高含硫高产气井环空带压安全评价研究[J]. 钻采工艺, 2011, 34(1):4244. doi:10.3969/j.issn.1000-768X.2011.01.014 ZHANG Zhi, GU Nan, YANG Hui, et al. Safety evaluation on sustained casing pressure (SCP) in high-sulfur highproduction gas well[J]. Drilling & Production Technology, 2011, 34(1):42-44. doi:10.3969/j.issn.1000-768X.2011.01.014
[4] 李钦道,谢光平,张娟. 初始管柱压缩量计算分析——封隔器管柱受力分析系统讨论之三[J]. 钻采工艺, 2001, 24(6):48-51. doi:10.3969/j.issn.1006-768X.2001.06.017 LI Qindao, XIE Guangping, ZHANG Juan. Calculation analysis of initial amount of compression of test string[J]. Drilling & Production Technology, 2001, 24(6):48-51. doi:10.3969/j.issn.1006-768X.2001.06.017
[5] 杨魁. 同井注采封隔器设计及管柱力学分析[D]. 青岛:中国石油大学(华东), 2011. YANG Kui. Packer design and mechanical analysis of injection-production string in one well[D]. Qingdao:China University of Petroleum, 2011.
[6] 许建国. 带多封隔器水平井作业管柱解封力分析[J]. 石油机械, 2011, 39(10):6971. doi:10.16082/j.cnki.issn.1001-4578.2011.10.019 XU Jianguo. An analysis of the releasing force of the multi-packer horizontal-well operation string[J]. Petroleum Machinery, 2011, 39(10):69-71. doi:10.16082/j.cnki.issn.1001-4578.2011.10.019
[7] 赵晓伟,牛彩云,朱洪征,等. 单封隔器抽油管柱受力变形分析[J]. 石油矿场机械,2011,40(12):51-54. doi:10.3969/j.issn.1001-3482.2011.12.013 ZHAO Xiaowei, NIU Caiyun, ZHU Hongzheng, et al. Analysis of the deformation to the pump strings with the packer[J]. Oil Field Equipment, 2011, 40(12):51-54. doi:10.3969/j.issn.1001-3482.2011.12.013
[8] 郎学军, 李兴应, 刘通义, 等. 双封隔器分层压裂工艺技术研究与应用[J]. 钻采工艺, 2004, 27(3):45-47. doi:10.3969/j.issn.1006-768X.2004.03.015 LANG Xuejun, LI Xingying, LIU Tongyi, et al. Research and application of separate zone fracturing with dual packer[J]. Drilling & Production Technology, 2004, 27(3):45-47. doi:10.3969/j.issn.1006-768X.2004.03.015
[9] 柴国兴,刘松,王慧莉,等. 新型水平井不动管柱封隔器分段压裂技术[J]. 中国石油大学学报(自然科学版), 2010, 34(4):141-144. doi:10.3969/j.issn.1673-5005.2010.04.028 CHAI Guoxing, LIU Song, WANG Huili, et al. New single-trip staged fracturing technology with packer isolation in horizontal wells[J]. Journal of China University of Petroleum(Edition of Natural Science), 2010, 34(4):141-144. doi:10.3969/j.issn.1673-5005.2010.04.028
[10] 崔玉海,唐高峰,丁晓芳,等. 注水管柱中温度效应的分析与计算[J]. 石油钻采工艺, 2003, 25(2):50-53. doi:10.3969/j.issn.1000-7393.2003.02.014 CUI Yuhai, TANG Gaofeng, DING Xiaofang, et al. Analysis and calculation of the temperature effect in the water injection string[J]. Oil Drilling & Production Technology, 2003, 25(2):50-53. doi:10.3969/j.issn.1000-7393.2003.02.014
[11] 张智,张琳琳. 高温高产气井自由套管热应力研究[J]. 安全与环境学报,2015,15(4):98-102. doi:10.13637/j.issn.1009-6094.2015.04.021 ZHANG Zhi, ZHANg Linlin. Thermal stress model for the free-casing section to be used for high-temperature and high-yield gas wells[J]. Journal of Safety and Environment, 2015, 15(4):98-102. doi:10.13637/j.issn.1009-6094.2015.04.021
[12] ZHANG Z, WANG H. Sealed annulus thermal expansion pressure mechanical calculation method and application among multiple packers in HPHT gas wells[J]. Journal of Natural Gas Science and Engineering, 2016, 31:692-702. doi:10.1016/j.jngse.2016.03.091
[13] 张智,王汉. 油套管导热系数与温度耦合模型计算井筒温度场[J]. 中国科技论文, 2015, 10(21):2539-2544. doi:10.3969/j.issn.2095-2783.2015.21.015 ZHANG Zhi, WANG Han. A coupled model of wellbore temperature calculation between temperature and thermal conductivity of tubing and casing[J]. China Science Paper, 2015, 10(21):2539-2544. doi:10.3969/j.issn.2095-2783.2015.21.015