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  1. No Access

    Article

    Reducing the Effect of Incorrect Lithology Labels on the Training of Deep Neural Networks for Lithology Identification

    The identification of lithology is a crucial step in determining the characteristics of petroleum reservoirs, and many studies have investigated the application of deep neural networks in lithology identificat...

    **aoyue Feng, Hongmei Luo, Changjiang Wang, Hanming Gu in Mathematical Geosciences (2024)

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    Article

    Anisotropic elastic least-squares reverse time migration with density variations in vertical transverse isotropic media

    Elastic least-squares reverse time migration (ELSRTM) has the potential to provide higher-quality migration images related to the lithology and fluid by imaging multi-component seismic data than conventional e...

    Yu Zhong, Hanming Gu, Yangting Liu, **a Luo, Qinghui Mao, Kai Xu in Acta Geophysica (2024)

  3. No Access

    Article

    A new elastic least-squares reverse-time migration method based on the new gradient equations

    Compared with single-component seismic data, multicomponent seismic data contain more P- and S-wave information. Making full use of multicomponent seismic data can improve the accuracy of seismic exploration. ...

    Yu Zhong, Yangting Liu, Hanming Gu, Qinghui Mao in Acta Geophysica (2022)

  4. No Access

    Article

    An integrated approach to evaluate the unconventional hydrocarbon generation potential of the Lower Goru Formation (Cretaceous) in Southern Lower Indus basin, Pakistan

    Southern Lower Indus basin is an oil and gas prone basin, which is important for producing hydrocarbon in Pakistan. Due to limited Rock-Eval pyrolysis data availability in the prospective shale gas basin, the ...

    Muhsan Ehsan, Hanming Gu, Abid Ali in Journal of Earth System Science (2021)

  5. No Access

    Article

    An integrated approach for the identification of lithofacies and clay mineralogy through Neuro-Fuzzy, cross plot, and statistical analyses, from well log data

    Today, researchers face multiple challenges identifying clay mineral types and lithofacies from well log data. This research paper hopes to offer new insight into this particular challenge. Formation evaluatio...

    Muhsan Ehsan, Hanming Gu in Journal of Earth System Science (2020)

  6. Article

    Open Access

    Deep learning for irregularly and regularly missing data reconstruction

    Deep learning (DL) is a powerful tool for mining features from data, which can theoretically avoid assumptions (e.g., linear events) constraining conventional interpolation methods. Motivated by this and inspi...

    **ntao Chai, Hanming Gu, Feng Li, Hongyou Duan, **aobo Hu, Kai Lin in Scientific Reports (2020)

  7. No Access

    Article

    A Modified Approach for Volumetric Evaluation of Shaly Sand Formations from Conventional Well Logs: A Case Study from the Talhar Shale, Pakistan

    In potential shale-gas basins, due to limited data availability, volumetric evaluation of shaly sand formations is a challenging task for researchers, as well as for exploration and production companies, with ...

    Muhsan Ehsan, Hanming Gu, Zulfiqar Ahmad in Arabian Journal for Science and Engineering (2019)

  8. No Access

    Article

    Identification of Hydrocarbon Potential of Talhar Shale: Member of Lower Goru Formation Using Well Logs Derived Parameters, Southern Lower Indus Basin, Pakistan

    Using well logs data only, the evaluation of shale gas hydrocarbon potential of Talhar Shale Member of Lower Goru Formation has been a challenge in Southern Lower Indus Basin in Pakistan. Well logs data analys...

    Muhsan Ehsan, Hanming Gu, Malik Muhammad Akhtar in Journal of Earth Science (2018)

  9. No Access

    Chapter and Conference Paper

    Direct Search Simulated Annealing for Nonlinear Global Optimization of Rayleigh Waves

    Nonlinear global optimization of Rayleigh wave dispersion curves not only undergoes computational difficulties associated with being easily entrapped in local minima for most local-search methods but also suff...

    **aochun Lv, Hanming Gu in Intelligent Computing Theories and Applications (2012)