基于Creatar XModeling的地应力场模拟自动化系统研究
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摘要
有限元地应力场数值模拟在石油勘探开发、工程开挖领域应用广泛,有限元应力分析软件ANSYS凭借其强大的通用处理能力受到青睐;但是在地应力分析过程中该软件建模能力较弱,不能构建复杂的三维地质模型;其建模过程烦琐,且无法直接处理钻孔、测井与地震等地学数据,同时考虑整个地应力求解过程人工参与较多,自动化水平较低。针对以上问题,地应力场模拟自动化系统将地质建模与地应力求解置于同一个平台环境下,利用三维地质建模技术构建地下岩体模型,展现地层之间的相互接触关系,并进行有限元求解得到三维地应力场分布。该系统能够提高建模效率、降低建模误差、简化材料参数设置,从而提高了地应力场建模自动化水平。
The finite element numerical simulation of geostress field is widely used in petroleum exploration and engineering excavation,ANSYS software is popular favored for its powerful general processing ability,but considered its weak ability of modeling,it can't build three-dimensional geological model under complex condition,in addition,the operation of ANSYS modeling is tedious,and it can't directly deal with drilling,logging and seismic geological data,besides,there is much artificial work during the in-site stress simulation,reduces the level of automation. Considering about the above reasons,the automation system of geostress simulation combines geology modeling and stress calculation under the same environment,building rock model underground with geology modeling technology,showing the contact relations between the layers,and getting the finite element in-site stress distribution. Research work mainly includes construction modeling,finite element mesh modeling,getting the rock mechanics parameters field,data interface researching and integrated system designing. This system can improve the efficiency and automation of modeling,reduce the modeling error,and simplify the material parameters allocation.
The finite element numerical simulation of geostress field is widely used in petroleum exploration and engineering excavation,ANSYS software is popular favored for its powerful general processing ability,but considered its weak ability of modeling,it can't build three-dimensional geological model under complex condition,in addition,the operation of ANSYS modeling is tedious,and it can't directly deal with drilling,logging and seismic geological data,besides,there is much artificial work during the in-site stress simulation,reduces the level of automation. Considering about the above reasons,the automation system of geostress simulation combines geology modeling and stress calculation under the same environment,building rock model underground with geology modeling technology,showing the contact relations between the layers,and getting the finite element in-site stress distribution. Research work mainly includes construction modeling,finite element mesh modeling,getting the rock mechanics parameters field,data interface researching and integrated system designing. This system can improve the efficiency and automation of modeling,reduce the modeling error,and simplify the material parameters allocation.
引文
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9 Yin Z M,Liu Z C.Changes of rock structure after water flooding in ansai oil fleld.Scientia Geologica Sinica,1999;8(3):321—330
10 Wang G C,Song Z Q,Wang R F,et al.Refined evaluating thickness of extra-low permibility reservoir using lithophase classification—take the chang 6 extra-low permeability reservoir of the Yanhewan area as an example.Acta Geologica Sinica,2010;84(2):286 —291
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12 张小莉,冯乔,孙佩,等.鄂尔多斯盆地延长组高自然伽马砂岩储层特征.地球物理学报,2010;53(1):205—213Zhang Xiaoli,Feng Qiao,Sun Pei,et al.Characteristics of high gamma ray reservoir of Yanchang formation in Ordos basin.Chinese Journal of Geophysics,2010;53(1):205—213
13 De Kemp E A,Sprague K B.Interpretive tools for 3-D structural geological modeling part I:Bezier-based curves,ribbons and grip frames.Geo Informatica,2003;7(1):55—71
14 Sprague K B,De Kemp E A.Interpretive tools for 3-D structural geological modeling part II:surface design from sparse spatial data.Geo Informatica,2005;9(1):5—32
15 Wu Q,Xu H.An approach to computer modeling and visualization of geological faults in 3D.Computers&Geosciences,2003;29(4):503—509
16 Laurent G,Caumon G,Bpuziat A,et al.A parametric method to model 3D displacements around faults with volumetric vector fields.Tectonophysics,2013;590(2):83—93
17 Caumon G,Lepage F,Sword C H,et al.Building and efiting a sealed geological model.Mathematical Geology,2004;36(4):405 —424
18 王瑞,陈海霞,王广峰.ANSYS有限元网格划分浅析.天津工业大学学报,2001;21(4):8—11Wang Rui,Chen Haixia,Wang Guangfeng.Analysis of ANSYS finite element mesh dividing.Journal of Tianjin Institute of Textile Science and Technology,2001;21(4):8—11
19 Krige D G.A statistical approach to some mine valuation and allied problems on the Witwatersrand.Johannesburg:University of the Witwatersrand,1951
20 龚曙光,谢桂兰,黄云清,等.ANSYS参数化编程与命令手册.北京:机械工业出版社,2009Gong Shuguang,Xie Guilan,Huang Yunqing,et al.ANSYS Parametric programming and command manual.Beijing:China Machine Press,2009
2 马秀敏,彭华,姜景捷,等.新疆西部北天山深埋特长隧道工程区应力场数值模拟.地质力学学报,2012;18(1):1—10Ma Xiumin,Peng Hua,Jiang Jingjie,et al.Numerical simulation of in-situ stress field in the area of deep-buried and longer tunnel in north Tianshan,Xinjiang.Journal of Geomechanics,2012;18(1):1 —10
3 沈连婠.工程分析中的有限元讲义.合肥:中国科技大学,2010Shen Lianwan.The finite element method in engineering analysis.Hefei:University of Science and Technology of China,2010
4 谢刚,王小林.MATLAB与ANSYS数据接口的开发研究与应用.机械工程与自动化,2005;(2):52—54Xie Gang,Wang Xiaolin.Study on interface of MATLAB with ANSYS and application to engineering.Mechanical Engineering&Automation,2005;(2):52—54
5 Pan M,Li Z L,Gao Z B,et al.3D Geological modeling-concept,methods and key techniques.Acta Geologica Sinica(English Edition),2012;86(4):1031—1036
6 李兆亮,潘懋,杨洋,等.三维复杂断层网建模方法及应用.北京大学学报(自然科学版),2015;51(1):79—85Li Zhaoliang,Pan Mao,Yang Yang,et al.Research and application of the three-dimensional complex fault network modeling.Acta Scientiarum Naturalium Universitatis Pekinensis,2015;51(1):79—85
7 党犇,赵虹,李文厚,等.安塞油田延长组长6油层组沉积微相特征.天然气地球科学,2004;15(6):597—600Dang Ben,Zhao Hong,Li Wenhou,et al.Characteristic of sedimentary microfacies in chang 6 oil-bearing formation of yanchang formation of Ansai oil field.Natural Gas Geoscience,2004;15(6):597 —600
8 胡国泽,滕吉文,阮小敏,等.秦岭造山带和领域磁异常特征及结晶基底变异分析.地球物理学报,2014;57(2):556—571Hu Guoze,Teng Jiwen,Ruan Xiaomin,et al.Magnetic anomaly characteristics and crystalline basement variation of the Qinling orogenic belt and its adjacent areas.Chinese Journal of Geophysics,2014;57(2):556—571
9 Yin Z M,Liu Z C.Changes of rock structure after water flooding in ansai oil fleld.Scientia Geologica Sinica,1999;8(3):321—330
10 Wang G C,Song Z Q,Wang R F,et al.Refined evaluating thickness of extra-low permibility reservoir using lithophase classification—take the chang 6 extra-low permeability reservoir of the Yanhewan area as an example.Acta Geologica Sinica,2010;84(2):286 —291
11 刘震,黄艳辉,潘高峰,等.低孔渗砂岩储层临界物性确定及其石油地质意义.地质学报,2012;86(11):1815—1825Liu Zhen,Huang Yanhui,Pan Gaofeng,et al.Determination of critical properties of low porosity and permeability sandstone reservoir and its significance in petroleum geology.Acta Geologica Sinica,2012;86(11):1815—1825
12 张小莉,冯乔,孙佩,等.鄂尔多斯盆地延长组高自然伽马砂岩储层特征.地球物理学报,2010;53(1):205—213Zhang Xiaoli,Feng Qiao,Sun Pei,et al.Characteristics of high gamma ray reservoir of Yanchang formation in Ordos basin.Chinese Journal of Geophysics,2010;53(1):205—213
13 De Kemp E A,Sprague K B.Interpretive tools for 3-D structural geological modeling part I:Bezier-based curves,ribbons and grip frames.Geo Informatica,2003;7(1):55—71
14 Sprague K B,De Kemp E A.Interpretive tools for 3-D structural geological modeling part II:surface design from sparse spatial data.Geo Informatica,2005;9(1):5—32
15 Wu Q,Xu H.An approach to computer modeling and visualization of geological faults in 3D.Computers&Geosciences,2003;29(4):503—509
16 Laurent G,Caumon G,Bpuziat A,et al.A parametric method to model 3D displacements around faults with volumetric vector fields.Tectonophysics,2013;590(2):83—93
17 Caumon G,Lepage F,Sword C H,et al.Building and efiting a sealed geological model.Mathematical Geology,2004;36(4):405 —424
18 王瑞,陈海霞,王广峰.ANSYS有限元网格划分浅析.天津工业大学学报,2001;21(4):8—11Wang Rui,Chen Haixia,Wang Guangfeng.Analysis of ANSYS finite element mesh dividing.Journal of Tianjin Institute of Textile Science and Technology,2001;21(4):8—11
19 Krige D G.A statistical approach to some mine valuation and allied problems on the Witwatersrand.Johannesburg:University of the Witwatersrand,1951
20 龚曙光,谢桂兰,黄云清,等.ANSYS参数化编程与命令手册.北京:机械工业出版社,2009Gong Shuguang,Xie Guilan,Huang Yunqing,et al.ANSYS Parametric programming and command manual.Beijing:China Machine Press,2009