Electromagnetic forward modeling is the cornerstone of geophysical electromagnetic
inversion. During the last 50 years, numerical simulation methods have been rapidly …

The deployment of electromagnetic (EM) induction tools while drilling is one of the standard
routines for assisting the geosteering decision-making process. The conductivity distribution …

The objective of this study is to develop a method to model 3D resistivity well logging
problems in 2D formation with anisotropy, known as 2.5 D modeling. The traditional 1D …

Electromagnetic logging while drilling (LWD) is one of the key technologies of the
geosteering and formation evaluation for high-angle and horizontal wells. In this paper, we …

We have developed a new method for the fast inversion of borehole resistivity
measurements acquired in multiple wells using logging-while-drilling instruments. There are …

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 …

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 …

In most cases, interpretation of resistivity measurements is performed using 1D multilayered
formation models that are used to fit data locally in real-time applications. While drilling high …

Fast and accurate simulation of responses of electromagnetic logging-while-drilling tools in
2D and 3D formations is important for further development of the proactive geosteering …

Resistivity inverse problems are routinely solved in order to characterize hydrocarbon
bearing formations. They often require a large number of forward problems simulations …