通过可理解的时间逻辑和内部点方法对直流电阻成像的混合优化
Paul Edigbue1, Hammed Oyekan2, Abdullatif Al-Shuhail2
1King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia. paulirikefe.edigbue@kfupm.edu.sa.
Scientific reports
|November 11, 2024
概括
本研究介绍了一种混合优化方法,它结合了不可理解但可以理解的时间内 (IbI) 逻辑和内部点方法 (IPM) 来改进地球物理直流电阻成像. 该方法提高了地下结构分辨率和数据逆转效率.
科学领域:
- 地质物理学 地质物理学
- 地球科学 地球科学 地球科学
- 计算地质物理学计算地质物理学
背景情况:
- 地理学直流电阻成像对于地下勘探至关重要,但由于数据非线性,它面临着传统反向方法的挑战.
- 复杂的地下特征的准确分辨率仍然是地理物理数据解释的重大障碍.
- 现有的技术往往难以平衡全球搜索和本地改进,以获得最佳的反转结果.
研究的目的:
- 为地球物理直流电阻逆转开发和验证一种新的混合优化方法.
- 提高地下成像技术的准确性,效率和分辨率.
- 在处理复杂的地质模型和大型数据集时克服传统倒置方法的局限性.
主要方法:
- 一种混合优化策略,将不可理解但可理解的时间逻辑 (IbI) 与内部点方法 (IPM) 结合起来.
- 使用IBI逻辑算法 (ILA) 进行初始全球搜索,以确定有前途的解决方案空间.
- 使用IPM进行本地优化,以改进解决方案,确保稳定性和效率.
- 为了准确和顺的模型,用数据不匹配和模型规范化术语制定一个客观函数.
主要成果:
- 混合方法在使用合成数据解决地下异常方面表现出卓越的性能.
- 对真实直流电阻数据的应用成功确定了地质断层区域,与先前的研究保持一致.
- 与传统方法相比,联合IBI-IPM方法显著提高了地下结构的分辨率.
- 探索和精炼阶段的有效平衡优化了计算时间和模型划分精度.
结论:
- 拟议的混合优化算法为地球物理直流电阻逆转提供了强大而高效的解决方案.
- 这种新的方法显著提高了地下成像的精度和分辨率,推进了地理物理数据解释实践.
- IBI逻辑和IPM之间的协同作用为分析复杂的地质场景和大规模数据集提供了强大的工具.
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