Application of 2.5-D finite difference method in logging-while-drilling electromagnetic measurements for complex scenarios

Z Wu, Y Fan, J Wang, R Zhang… - IEEE Geoscience and …, 2019 - ieeexplore.ieee.org
We present a 2.5-D finite difference (FD) algorithm to simulate the logging-while-drilling
(LWD) electromagnetic (EM) measurements with arbitrarily oriented magnetic dipole …

Numerical simulation and dimension reduction analysis of electromagnetic logging while drilling of horizontal wells in complex structures

ZG Wu, SG Deng, XQ He, R Zhang, YR Fan, XY Yuan… - Petroleum Science, 2020 - Springer
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 …

The scattering of electromagnetic fields from anisotropic objects embedded in anisotropic multilayers

Y Hu, Y Fang, D Wang, Q Zhan… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This article presents an efficient method for calculating the scattered electromagnetic (EM)
fields from anisotropic objects embedded in general anisotropic multilayers, both with …

A fast numerical method for the galvanic measurement in hydraulic fracture detection

Y Fang, Y Hu, Q Zhan, D Wang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Hydraulic fracturing is critical for unconventional oil and gas production. Recently, galvanic
methods, including borehole-to-surface and surface-to-borehole electromagnetic methods …

Memory-efficient 3-D LWD solver with the flipped total field/scattered field-based DGFD method

R Zhang, Z Wu, Q Sun, M Zhuang… - … and Remote Sensing …, 2019 - ieeexplore.ieee.org
This letter presents a fast and memory-efficient 3-D electromagnetic solver for logging-while-
drilling (LWD) tools based on the flipped total field/scattered field-based discontinuous …

Numerical simulation and analysis of multicomponent induction logging response in anisotropic formation

Y Li, X Sun, G Su, M Wang, R Li - IEEE Access, 2020 - ieeexplore.ieee.org
In this article, the response characteristics of multicomponent induction logging (MCIL) tool
in anisotropic formation are analyzed. To solve the 1-D MCIL problems, we use a planar …

Fast geometric multigrid preconditioned finite-difference frequency-domain method for borehole electromagnetic sensing

Q Sun, Y Hu - IEEE Geoscience and Remote Sensing Letters, 2021 - ieeexplore.ieee.org
To model the responses of borehole electromagnetic sensing in complicated geological
environments, the geometric multigrid preconditioned finite-difference frequency-domain …

Accurate and efficient methods for the scattering simulation of dielectric objects in a layered medium

W Huang - 2019 - search.proquest.com
Electromagnetic scattering in a layered medium (LM) is important for many engineering
applications, including the hydrocarbon exploration. Various computational methods for …

Multiscale forward and inverse problems with the DGFD method and the deep learning method

R Zhang - 2020 - search.proquest.com
A fast electromagnetic (EM) forward solver has been developed for the subsurface detection,
with application includes producing synthetic logging data and instructing large-scale field …

An alternative amelioration of ME-based DZT-PML for truncating FDTD problems

N Feng, XS Li, Y Zhang, Y Sun - Electromagnetics, 2021 - Taylor & Francis
In order to further alleviate computational burdens and enhance accuracies, we propose an
efficient amelioration on the complex-frequency-shifted perfectly matched layer (CFS-PML) …