Volume 18 Issue 2
Jun.  2012
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ZENG De-zhi, LIN Yuan-hua, LU Ya-feng, et al., 2012. NUMERICAL SIMULATION OF HOLE CREEP SHRINKAGE FOR COMPOSITE ROCK SALT LAYERS. Journal of Geomechanics, 18 (2): 158-164.
Citation: ZENG De-zhi, LIN Yuan-hua, LU Ya-feng, et al., 2012. NUMERICAL SIMULATION OF HOLE CREEP SHRINKAGE FOR COMPOSITE ROCK SALT LAYERS. Journal of Geomechanics, 18 (2): 158-164.

NUMERICAL SIMULATION OF HOLE CREEP SHRINKAGE FOR COMPOSITE ROCK SALT LAYERS

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  • Received: 2011-10-29
  • Published: 2012-06-28
  • Salt rocks have very strong creep behaviors in HTHP environment in deep formations, complex accidents such as hole shrinkage, drill pipe sticking, etc. occurring frequently. Current methods to calculate the safe drilling mud density are mainly used in circumstances of homogeneous earth stress. The 3-D finite element analysis (FEA) model of borehole creep shrinkage concerning salt rock and sand shale was established in this paper under triaxial earth stress. On the basis of deep wells of Yangtake in Tarim, laws of borehole creep shrinkage vs time were studied under the condition of heterogeneous earth stress, and values of borehole diameter in different times are obtained when the mud density is specified. Results calculated are very close to the safety drilling mud density field used in rock salt layers, thus verifying the reasonableness and reliability of the model established in the paper. Research results can provide technical support for safe drilling in rock salt layers.

     

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  • [1]
    Holt C A, Johnson J B. A method for drilling moving salt formations-drilling and under reaming at the same time[R]. SPE 13488, 1996.
    [2]
    Willson S M, Fossum A F, Fredrich J T. Assessment of salt loading on well casings[R]. SPE 81820, 2003:13~21
    [3]
    刘绘新, 张鹏, 盖峰.四川地区盐岩蠕变规律研究[J].岩石力学与工程学报, 2002, 21(9):1290~1294. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200209001.htm

    LIU Hui-xin, ZHANG Peng, GAI Feng. Study on creep rule of salt rock in Sichuan region[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(9):1290~1294. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200209001.htm
    [4]
    何开平, 张良万, 张正禄, 等.盐膏层蠕变粘弹性流体模型及有限元分析[J].石油学报, 2002, 23(3):102~106. doi: 10.7623/syxb200203023

    HE Kai-ping, ZHANG Liang-wan, ZHANG Zheng-lu, et al. Viscous and elastic flow module for gypseous salt creep and finite element analyses[J]. Acta Petrolei Sinica, 2002, 23(3):102~106. doi: 10.7623/syxb200203023
    [5]
    曾义金, 杨春和, 陈锋, 等.深井石油套管盐膏岩层蠕变挤压应力计算研究[J].岩石力学与工程学报, 2002, 21(4):595~598. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200204030.htm

    ZENG Yi-jin, YANG Chun-he, CHEN Feng, et al. Numerical analysis of creep pressing stress of casing in deep salt rock stratum[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(4):595~598. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200204030.htm
    [6]
    高德利, 郑传奎, 覃成锦.蠕变地层中含缺陷套管外挤压力分布的数值模拟[J].中国石油大学学报, 2007, 31(1):56~61. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX200701010.htm

    GAO De-li, ZHENG Chuan-kui, TAN Cheng-jin. Numerical simulation of external pressure distribution of casing string with wear in creep formation[J]. Journal of University of Petroleum, China, 2007, 31(1):56~61. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX200701010.htm
    [7]
    杨恒林, 陈勉, 金衍, 等.蠕变地层套管等效破坏载荷分析[J].中国石油大学学报, 2006, 30(4):94~96. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX200604022.htm

    YANG Heng-lin, CHEN Mian, JIN Yan, et al. Analysis of casing equivalent collapse resistance in creep formations[J]. Journal of University of Petroleum, China, 2006, 30(4):94~96. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX200604022.htm
    [8]
    林元华, 曾德智, 施太和, 等.软岩层引起的套管外载计算方法研究[J].岩石力学与工程学报, 2007, 26(3):538~543. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200703013.htm

    LIN Yuan-hua, ZENG De-zhi, SHI Tai-he, et al. Study on computation method for casing load induced by soft rocks[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(3):538~543. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200703013.htm
    [9]
    金衍, 陈勉.盐岩地层井眼缩径控制技术新方法研究[J].岩石力学与工程学报, 2000, 19(增刊):1111~1114. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2000S1065.htm

    JIN Yan, CHEN Mian. A new approach for controlling tight hole in salt formation[J]. Chinese Journal of Rock Mechanics and Engineering, 2000, 19(Supp.):1111~1114. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2000S1065.htm
    [10]
    郑力会, 陈勉, 张民立, 等.稳定盐膏层井眼的不饱和有机盐水钻井液新技术[J].岩土力学, 2005, 26(11):1829~1833. doi: 10.3969/j.issn.1000-7598.2005.11.024

    ZHENG Li-hui, CHEN Mian, ZHANG Min-li, et al. A new technology for controlling hole-stability in salt/gypsum stratum by unsaturated organic-salt liquor drilling fluid[J]. Rock and Soil Mechanics, 2005, 26(11):1829~1833. doi: 10.3969/j.issn.1000-7598.2005.11.024
    [11]
    唐继平, 王书琪, 陈勉.盐膏层钻井理论与实践[M].北京:石油工业出版社, 2004:29~46.

    TANG Ji-ping, WANG Shu-qi, CHEN Mian. Practice and theory of drilling in salt rocks[M]. Beijing:Petroleum Industry Press, 2004:29~46.
    [12]
    林元华, 曾德智, 施太和, 等.盐岩层蠕变规律的反演方法研究[J].石油学报, 2005, 26(5):111~114. doi: 10.7623/syxb200505025

    LIN Yuan-hua, ZENG De-zhi, SHI Tai-he, et al. Inversion algorithm for creep laws of salt rocks[J]. Acta Petrolei Sinica, 2005, 26(5):111~114. doi: 10.7623/syxb200505025
    [13]
    杨春和, 曾义军, 吴文, 等.深层盐岩本构关系及其在石油钻井工程中的应用研究[J].岩石力学与工程学报, 2003, 22(10):1678~1682. doi: 10.3321/j.issn:1000-6915.2003.10.019

    YANG Chun-he, ZENG Yi-jun, WU Wen, et al. Constitutive relationship of deep salt rock and its application to petroleum drilling engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(10):1678~1682. doi: 10.3321/j.issn:1000-6915.2003.10.019
    [14]
    楼一珊, 李忠慧, 张春阳, 等.油气井眼井斜角、方位角对盐岩蠕变的影响[J].岩石力学与工程学报, 2008, 27(增2):3570~3574. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2008S2045.htm

    LOU Yi-shan, LI Zhong-hui, ZHANG Chun-yang, et al. Influence on inclination angle and azimuth angle of borehole on creep of salt rock[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(S2):3570~3574. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2008S2045.htm
    [15]
    吴应凯, 石晓兵, 陈平, 等.深部盐膏层安全钻井技术的现状及发展方向研究[J].天然气工业, 2004, 24(2):67~69. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200402022.htm

    WU Ying-kai, SHI Xiao-bing, CHEN Ping, et al. Status quo and development of safety drilling techniques for deep evaporate beds[J]. Nature Gas Industry, 2004, 24(2):67~69. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200402022.htm
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