Obtaining quantitative information on the state of stress in the crust can only be
accomplished by accessing the zone of interest by drilling. The borehole cavity, however …

The accurate extraction of useful signals from the measurement data is one of the important
parts and challenges of the understanding of subsurface information. The desired signal is …

Single-well S-wave imaging has several attractive features because of its directional
sensitivity and usefulness for fracture characterization. To provide a method for single-well …

Rocks in earth's crust usually contain both pores and cracks. This phenomenon significantly
affects the propagation of elastic waves in earth. This study describes a unified elastic wave …

Rocks in the earth's crust usually contain pores and cracks. Typical examples include tight
sandstone and shale rocks that have low porosity but contain abundant microcracks. By …

Sedimentary rocks are often heterogeneous porous media inherently containing complex
distributions of heterogeneities (eg, fluid patches and cracks). Understanding and modeling …

Imaging near-borehole structures using acoustic-logging data depends on the data-
processing method used. We demonstrate that extracting the up-and downgoing reflections …

We have investigated the impact of wave-induced fluid flow, including Biot flow and
mesoscopic flow, on the signatures of seismic reflectivity in heterogeneous reservoir rocks …

The development of dipole shear-wave imaging technology requires understanding of the
effects of radiation, reflection, and reception of elastic waves from a borehole dipole source …

模拟弹性波在孔隙介质中传播, 需要稳定有效的吸收边界来消除或尽可能的减小由人工边界引起
的虚假反射. 本文在前人工作基础上, 首次建立了弹性孔隙介质情况下完全匹配层吸收边界的高 …