Inversion and uncertainty assessment of ultra-deep azimuthal resistivity logging-while-drilling measurements using particle swarm optimization

L Yan, Q Shen, H Lu, H Wang, X Fu, J Chen - Journal of Applied …, 2020 - Elsevier
As the depth of detection of logging-while-drilling azimuthal resistivity tools increases, more
details about formation structure fall into the detection zone. The complicated measurement …

2-D pixel-based inversion for simultaneous reconstruction of resistivity and dielectric constant from electromagnetic logging-while-drilling measurements

L Yan, S Zeng, J Chen - IEEE Transactions on Geoscience and …, 2021 - ieeexplore.ieee.org
The dielectric effects are significant in certain circumstances in hydrocarbon exploration and
production. Neglecting these effects can result in an inaccurate description of subsurface …

Fast anisotropic resistivities inversion of logging-while-drilling resistivity measurements in high-angle and horizontal wells

L Wang, ZG Wu, YR Fan, LZ Huo - Applied Geophysics, 2020 - Springer
Abstract Information about anisotropic resistivity is essential in real-time correlation,
updating of formation model and making more confident geosteering decisions in logging …

A new semianalytical algorithm for rapid simulation of triaxial electromagnetic logging responses in multilayered biaxial anisotropic formations

L Wang, P Qiao, Z Li, P Zhang, S Deng, Y Fan - Geophysics, 2023 - library.seg.org
ABSTRACT A set of compact and stable formulas are developed for the computation of
triaxial electromagnetic (EM) logging responses in multilayered formations with biaxial …

An Intelligent Inversion Method for Azimuth Electromagnetic Logging While Drilling Measurements

Z Kang, Y Zhang, H Qin, W Gan, G Chen - IEEE Access, 2023 - ieeexplore.ieee.org
Azimuth electromagnetic (EM) Logging While Drilling (LWD) tools play an important role in
geological steering and reservoir evaluation. Its measuring response is amplitude ratio …

[HTML][HTML] 石油电磁测井技术发展中的一些关键问题

张意, 冯宏, 韩雪, 陈刚, 蒋必辞 - 石油地球物理勘探, 2021 - html.rhhz.net
张意, 冯宏, 韩雪, 陈刚, 蒋必辞. 石油电磁测井技术发展中的一些关键问题. 石油地球物理勘探,
2021, 56 (6): 1430-1447. DOI: 10.13810/j. cnki. issn. 1000-7210.2021. 06.025.ZHANG Yi …

Effects of formation structure on directional electromagnetic logging while drilling measurements

Z Wu, H Li, Y Han, R Zhang, J Zhao, Q Lai - Journal of Petroleum Science …, 2022 - Elsevier
Directional electromagnetic (EM) logging while drilling (LWD) tools have been widely used
in well navigation for its azimuthal sensitivity and deep depth of detection (DOD). In this …

Detection performance of azimuthal electromagnetic logging while drilling tool in anisotropic media

ZG Wu, L Wang, YR Fan, SG Deng, R Huang… - Applied Geophysics, 2020 - Springer
Azimuthal electromagnetic (EM) logging while drilling (LWD) has been extensively used in
high-angle and horizontal (HA/HZ) wells. However, due to the effects of formation …

The joint physics and data-driven geometrical factor of array laterolog in layered formations

L Wang, Y Han, Z Li, D Hao, S Deng - Geophysics, 2025 - library.seg.org
Numerical geometrical factors (GFs) are developed for array laterolog measurements in 1D
cylindrically and planarly layered formations. The kernel of GFs assumes that laterolog …

FPGA-accelerated deep neural network for real-time inversion of geosteering data

Y Jin, Q Wan, X Wu, X Fu, J Chen - Geoenergy Science and Engineering, 2023 - Elsevier
We implement an efficient deep learning-based inversion method using the Field
Programmable Gate Array (FPGA) to support real-time geosteering. FPGA is a feasible …