断层扰动下地应力场三维有限元约束优化反演

›› 2007, Vol. 28 ›› Issue (S1): 359-365.

断层扰动下地应力场三维有限元约束优化反演

沈海超，程远方，王京印，赵益忠，张建国

中国石油大学石油工程学院，东营 257061

收稿日期:2007-03-24 出版日期:2007-10-25 发布日期:2014-03-28
作者简介:沈海超，男，1982年生，博士研究生，从事油气井岩石力学与工程方面研究

3-D FEM inversion for the in-situ stress field around complex faults based on the theory of constrained optimization

SHEN Hai-chao, CHENG Yuan-fang, WANG Jing-yin, ZHAO Yi-zhong, ZHANG Jian-guo

College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China

Received:2007-03-24 Online:2007-10-25 Published:2014-03-28

摘要/Abstract

摘要： 在分析复杂断层构造扰动下的区块G的多点实测地应力分布特点的基础上，通过建立符合研究区地质特点的数值模型，采用基于有限元法及数学约束优化理论的有限元约束优化反演法对研究区的三维地应力场进行了模拟，得到了与实测值吻合良好的结果。通过对反演得到的地应力分布特征进行分析，探讨了复杂断层对区域地应力状态的影响。研究结果表明：断层附近的地应力分布主要受其邻近断层的扰动影响，且受扰乱程度与断层的几何尺寸以及离断层的距离等因素相关；由于断层的扰动作用，断层附近地应力分布十分复杂，尤其是断层端部尖灭区的地应力分布更是如此，因此，有限“点”的实测应力值不能全面反映断层发育区地应力场的全貌，三维数值模拟是区域地应力场定量分析与评价的不可缺少的手法。

关键词: 复杂断层, 地应力场, 地应力测量, 有限元约束优化方法, 三维数值模拟

Abstract: According to the distribution characteristics of in-situ stresses measured in the fault-block G around complex faults, in-situ stress field is simulated and estimated by establishing numerical model suitable for geological structure of the block G and applying the COFEM method(constrained optimization finite element method) based on the FEM method and the theory of constrained optimization. Simulating results fit with the distribution characteristics of the measurements. In addition, the influence of complex faults on regional in-situ stresses is analyzed by comparing the in-situ measurements with numerical results. It is shown that the distribution of in-situ stresses around faults is mainly affected by its near faults, and depends mainly on the scale of the fault and the distance from the near fault. Because of the influence of the faults, the distribution of in-situ stresses around faults is complicated, especially the terminal portion of faults, the distribution of in-situ stresses field can not be generated by some discrete measuring points. Three-dimensional numerical simulation is very important for us to analyze and estimate the in-situ stresses field.

Key words: complex faults, in-situ stress field, in-situ stress measuring, COFEM method, three-dimensional numerical simulation

中图分类号:

P 642

沈海超，程远方，王京印，赵益忠，张建国. 断层扰动下地应力场三维有限元约束优化反演[J]. , 2007, 28(S1): 359-365.

SHEN Hai-chao, CHENG Yuan-fang, WANG Jing-yin, ZHAO Yi-zhong, ZHANG Jian-guo. 3-D FEM inversion for the in-situ stress field around complex faults based on the theory of constrained optimization[J]. , 2007, 28(S1): 359-365.

参考文献

相关文章 15

[1]	王庆武，巨能攀，杜玲丽，黄健，胡勇,. 拉林铁路桑日至加查段三维地应力场反演分析[J]. , 2018, 39(4): 1450-1462.
[2]	蒙伟，何川，汪波，张钧博，吴枋胤，夏舞阳. 基于侧压力系数的岩爆区初始地应力场二次反演分析[J]. , 2018, 39(11): 4191-4200.
[3]	钟山，江权，冯夏庭，刘继光，李邵军，邱士利，吴世勇，. 锦屏深部地下实验室初始地应力测量实践[J]. , 2018, 39(1): 356-366.
[4]	马少坤，邵羽，刘莹，冯野，韦朝华，. 不同埋深盾构双隧道及开挖顺序对临近管线的影响研究[J]. , 2017, 38(9): 2487-2495.
[5]	张社荣，胡安奎，王超，彭振辉, . 基于SLR-ANN的地应力场三维智能反演方法研究[J]. , 2017, 38(9): 2737-2745.
[6]	王成虎，邢博瑞，. 原生裂隙水压致裂原地应力测量的理论与实践新进展[J]. , 2017, 38(5): 1289-1297.
[7]	王春艳，张方涛，马郧，康安栋，徐光黎，李松,. 基坑圆环支撑体系水平刚度系数计算方法研究[J]. , 2017, 38(3): 840-846.
[8]	李华，李崇标，刘云鹏，韩刚，赵其华,. 中国西南深切峡谷岸坡地应力场基本特征[J]. , 2016, 37(S1): 482-488.
[9]	朱元广，刘泉声，蒋景东，薛俊华，. 三向压力盒的嵌入效应及其应力测量特性模拟[J]. , 2015, 36(9): 2728-2736.
[10]	邱道宏，李术才，张乐文，崔伟，苏茂鑫，谢富东,. 基于隧洞超前地质探测和地应力场反演的岩爆预测研究[J]. , 2015, 36(7): 2034-2040.
[11]	马郧，李松，徐光黎，龙晓东，郭运，刘佑祥，张晓玉，. 武汉某超深基坑软土抗剪强度指标选取及应用研究[J]. , 2014, 35(S2): 306-312.
[12]	王海军，汤雷，任旭华，杨安玉，牛岩,. 低应力区岩石变形记忆效应形成机制及失忆性[J]. , 2014, 35(4): 1007-1014.
[13]	徐坤，王志杰，孟祥磊，孙长升. 深埋隧道围岩松动圈探测技术研究与数值模拟分析[J]. , 2013, 34(S2): 464-470.
[14]	王金安，黄琨，张然 , . 高陡复杂露天矿边坡地应力场分区非线性反演分析[J]. , 2013, 34(S2): 214-221.
[15]	张鹏，秦向辉，丰成君，孙炜锋，谭成轩 . 郯庐断裂带山东段深孔地应力测量及其现今活动性分析[J]. , 2013, 34(8): 2329-2336.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed