Borehole Acoustics |

Adjoint-Based Borehole Acoustic First-Arrival Traveltime Tomography for Near-Borehole 3D Slowness Reconstruction: Method and Applications

Sun, 01 Mar 2026 00:00:00 +0000

Borehole acoustic traveltime tomography with the adjoint-state method for near-borehole slowness reconstruction

Fri, 01 Aug 2025 00:00:00 +0000

Finite-difference modeling of multipole borehole acoustic waveforms in cracked porous formations

Sun, 01 Jun 2025 00:00:00 +0000

Adjoint-State Borehole Acoustic First-Arrival & Reflection Traveltime Tomography

Thu, 01 Jun 2023 00:00:00 +0000

Developed efficient borehole acoustic traveltime tomography methods that reconstruct near- and far-borehole formation velocity distributions from the first arrivals and reflected arrivals of monopole logging data, respectively. The work includes an automatic workflow for picking the first-arrival and reflected-arrival times of the azimuthal acoustic logging tool.

Stoneley wave reflection and transmission across permeable formations and fractured zones: Comparison of analytical and numerical modeling results

Wed, 01 Sep 2021 00:00:00 +0000

Finite-Difference Modeling of Borehole Acoustic Waves in Porous Formations

Sun, 01 Dec 2019 00:00:00 +0000

Developed an advanced multi-physics finite-difference method to simulate elastic wave propagation in porous formations, incorporating elastic, poroelastic, and poro-crack media, and accounting for wave dispersion and attenuation caused by both Biot and squirt-flow mechanisms. The poroelastic finite-difference method and an effective-wavenumber analytical method were used to model Stoneley wave reflection and transmission coefficients across permeable and fractured formations, improving the interpretation of borehole acoustic measurements and the accuracy of reservoir characterization.