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泥岩热弹塑性模型在SAGD中的应用

周大通, 李治平

周大通, 李治平. 泥岩热弹塑性模型在SAGD中的应用[J]. 岩土工程学报, 2015, 37(7): 1348-1352. DOI: 10.11779/CJGE201507024
引用本文: 周大通, 李治平. 泥岩热弹塑性模型在SAGD中的应用[J]. 岩土工程学报, 2015, 37(7): 1348-1352. DOI: 10.11779/CJGE201507024
ZHOU Da-tong, LI Zhi-ping. Application of thermoplastic model for mudstone in SAGD[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(7): 1348-1352. DOI: 10.11779/CJGE201507024
Citation: ZHOU Da-tong, LI Zhi-ping. Application of thermoplastic model for mudstone in SAGD[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(7): 1348-1352. DOI: 10.11779/CJGE201507024

泥岩热弹塑性模型在SAGD中的应用  English Version

基金项目: 国家自然科学基金项目(51174178)
详细信息
    作者简介:

    周大通(1988- ),男,北京人,硕士研究生,从事岩石力学与稠油热采方面研究。E-mail: joe2ere@126.com。

Application of thermoplastic model for mudstone in SAGD

  • 摘要: 泥岩在受热过程中的应力、应变、孔压变化有特殊的规律,此研究对能源、核能、土木等诸多方面均有重要意义。目前国内的实验和模型研究很少,而国外的学者通过在黏土的修正剑桥模型的基础上引入温度变量,成功地提出了黏土的热弹塑性本构模型。通过对现有的黏土本构模型进行对比计算,并在此基础上进行发展,得出可以应用于泥岩的热弹塑性本构模型。进而,将新疆某稠油油田泥岩夹层数据代入该模型进行计算,获得了其孔隙压力和轴向应变预测结果,该结果国外同类实验结果较好地吻合。运用孔隙压力升高造成张失效这一原理,模型预测出了不同孔隙度泥岩的失效温度。同时,结合温度场公式,模型一判断SAGD开采时储层中泥岩夹层的失效位置和时间。这方面研究对于稠油开采中的蒸汽辅助重力泄油(SAGD)时,受到夹层阻碍,抑制蒸汽腔扩展这一问题的解决有重要意义。
    Abstract: The studies on stress, strain and pore pressure of mudstone during heating are significant in many fields, such as heave oil recovery, nuclear waste storage and civil engineering. The literature investigation indicates that rare related works have been done in this area and ongoing studies still stay in infancy all over the world. To our knowledge, few experiments and models have been revealed in domestic research activities. While some thermo-elasto-plastic constitutive models are successfully created by introducing temperature effect into the modified clay-based Cambridge model. Here, a thermo-elasto-plastic model for mudstone is proposed, which is capable to simulate change of stress, strain and pore pressure under in-situ boundary conditions. Furthermore, inner bed mudstone data of Xinjiang’s heavy oil field are applied in this model. Results of pore pressure and axial strain are obtained, and they agree with those of foreign experiments. By using the function for temperature field during steam chamber expansion of SAGD, constitutive failure of mudstone with different saturations is forecast. The results can effectively solve the problem that the inner bed mudstone hinders the steam chamber expansion.
  • [1] BALDI G, HUECKEL T, PELLEGRINI R. Thermal volume changes of themineral-water system in low-porosity clay soils[J]. Canadian Geotechnical Journal, 1988, 25(4): 807-825.
    [2] BALDI G, HUECKEL T, PEANO A, et al. Developments in modelling of thermo-hydro-geomechanical behaviour of boom clay and clay-based buffer materials[C]// ISMES, Final Report, EUR, 1991: 134.
    [3] HUECKEL T, BALDI G. Thermoplasticity of saturated clays: experimental constitutive study[J]. Journal of Geotechnical Engineering, ASCE, 1990, 116(12): 1778-1796.
    [4] HUECKEL T, BORSETTO M. Thermoplasticity of saturated soils and shales: constitutive equations[J]. Journal of Geotechnical Engineering, ASCE, 1990, 116(12): 1765-1777.
    [5] YU Jun-cui, NABIL Sultan, PIERRE DElage. A thermomechanical model for saturated clays[J]. Canadian Geotechnical Journal, 2000, 37(4): 607-620.
    [6] 张连英. 高温作用下泥岩的损伤演化及破裂机理研究[D]. 北京: 中国矿业大学, 2012. (ZHANG Lian-ying. Research on Damage Evoultion and Fracture Mechanisms of Mudstone under High Tempearture[D]. Beijing: China University of mining and Technology, 2012. (in Chinese))
    [7] ROSCOE K, BURLAND J. On generalized stress strain behaviour of wet clay[M]. Cambridge: Cambridge University Press, 1968.
    [8] ROSENQUIST T. Physico-chemical properties of soils in soil-water system[J]. J Soil Mech and Found Engrg Div, 1959, 85(2): 31-53.
    [9] 朱合华, 闫治国, 邓 涛, 等. 3种岩石高温后的力学性质的试验研究[J]. 岩石力学与工程学报, 2006, 25(10): 1945-1950. (ZHU He-hua,YAN Zhi-guo,Deng Tao. Testing Study on Mechanical Properties of Tuff, Granite and Breccia after High Temperatures[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(10): 1945-1950. (in Chinese))
    [10] 仲岩磊. 隔夹层在稠油蒸汽吞吐热采中的意义[J]. 中国石油大学胜利学院学报, 2012, 26(4): 6-8. (ZHONG Yan-lei. The Significance of Spacer Layer in Thermal Recovery of Heavy Oil Steam Stimulation[J]. Journal of Shengli College China University of Petroleum, 2001, 26(4): 6-8. (in Chinese))
    [11] 鄢 旭. 隔夹层对SAGD开发的影响及对策研究[J]. 内江科技, 2011, 35(1): 124. (YAN Xu. Study on the influence and Countermeasure of the Isolation Layer on the Development of SAGD [J]. NEIJING KEJI, 2011, 35(1): 124. (in Chinese))
    [12] HUECKEL T, FRANC Ois B, LALOUI L. Explaining thermal failure in saturated clays[C]// Ge´otechnique 59, No. 3, 197-212, doi:10.1680/geot.2009.59.3.197. 2009a.
    [13] HUECKEL T, LALOUI L, FRANC¸OIS B. Implications of thermal sensitivity of the static internal friction angle[C]// Proc 1st Int Symp on Computational Geomechanics (ComGeo I), Juanles-Pins, 2009b: 104-115.
    [14] HUECKEL T, LALOUI L. Implications of thermal sensitivity of the internal friction angle[C]// Proc 1st Int Symp Comp Geomech (ComGeo1). Juanles-Pins, 2009.
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出版历程
  • 收稿日期:  2014-06-17
  • 发布日期:  2015-07-19

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