Well cementation, pumping cement into the annulus between the casing and rock or
between two casings after drilling, is a key step of well completion to keep well and …

We developed a frequency-domain finite-element method (FFEM) in conjunction with a
complex-frequency-shifted perfectly matched layer (CFS-PML) boundary to effectively study …

Recent studies have revealed the great potential of acoustic reflection logging in detecting
near borehole fractures and vugs. The new design of acoustic reflection imaging tool with a …

Numerical analyses are performed to investigate ultrasonic wave propagation in fluid–solid
half-spaces subject to a directional source. This research is particularly concerned with the …

Numerical simulation of sonic logging-while-drilling (LWD) borehole measurements is
challenging because of significant wave propagation effects due to the massive drilling …

Reverse time migration (RTM), which has the ability to migrate any type of multiples (surface
and internal) to their correct location in the subsurface, can handle multi-pathing, image …

Borehole acoustic reflection imaging is now playing an increasingly important role in
delineating micro-structures like fractures and vugs. This paper applies reverse time …

We have developed simulators of the finite difference method (FDM) and finite element
method (FEM) to study the acoustic reflection wave fields generated by acoustic logging tool …

We developed a finite element method (FEM) in conjunction with a Complex-Frequency-
Shifted Perfectly Matched Layer (CFS-PML) boundary to effectively study the wave field …