| 用斜井钻孔崩落资料反演上地壳应力状态的遗传算法 |
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| 引用本文： | 俞言祥,许忠淮,黄雨蕊.用斜井钻孔崩落资料反演上地壳应力状态的遗传算法[J].华北地震科学,2000,18(1):1-8. |
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| 作者姓名： | 俞言祥 许忠淮 黄雨蕊 |
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| 作者单位： | 中国地震局地球物理研究所,北京,100081 |
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| 基金项目： | 地震科学联合基金，中国地震局地球物理研究所项目，9500026，99AC2028，， |
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| 摘 要： | 用斜井钻孔崩落资料求取地壳应力状态是一个非线性反演问题。而遗传算法是解反演问题的有效方法之一。本文由斜井钻孔崩落的理论模型，用人工数据检验了遗传算法应用于此问题的有效性。对冀中坳陷内的饶阳凹陷和深县凹陷两个地区的６口油井的钻孔崩落数据进行了处理，用遗传算法反演了这两个凹陷的上地壳应力状态，与用非线性反演和枚举相结合的方法相比，大大减少了计算量，得到了令人满意的结果。
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| 关 键 词： | 应力测量 钻孔崩落 斜井 遗传算法 地壳应力 |
| 修稿时间： | : |
INVERSION OF UPPER CRUSTAL STRESS STATE WITH COLLAPSE DATA FROM INCLINED BOREHOLES BY GENETIC ALGORITHMS |
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| Yu Yanxiang,Xu Zhonghuai,Huang Yurui.INVERSION OF UPPER CRUSTAL STRESS STATE WITH COLLAPSE DATA FROM INCLINED BOREHOLES BY GENETIC ALGORITHMS[J].North China Earthquake Sciences,2000,18(1):1-8. |
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| Authors: | Yu Yanxiang Xu Zhonghuai Huang Yurui |
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| Abstract: | It is
a non-linear inversion to calculate crustal stress field with collapse data of inclined
borehole.Genetic algorithm is one of the most effective methods to solve the inverse
problem.In this paper,according to collapse model we tested the effectiveness of genetic
algorithm with analog data.We processed the collapse data from 6 inclined oil wells in
Raoyang sag and Shenxian sag in the middle part of Hebei province,and reversed the crustal
stress state of the two sags with genetic algorithm.Compared with the join method of
non-linear inversion and enumeration,the amount of calculation is greatly reduced and the
results are satisfactory. |
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| Keywords: | morth China stress measuring collapse of borehole inclined well algorithm stress state |
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