Seismic characterization of naturally fractured reservoirs with monoclinic symmetry induced by horizontal and tilted fractures from amplitude variation with offset and …

X Pan, C Lu, G Zhang, P Wang, J Liu - Surveys in Geophysics, 2022 - Springer
Geological and geophysical data acquired from naturally fractured hydrocarbon reservoirs
usually exhibit the presence of multiple sets of fractures. Two different nonorthorhombic sets …

Seismic characterization of fractured reservoirs with elastic impedance difference versus angle and azimuth: A low-frequency poroelasticity perspective

X Pan, P Zhang, G Zhang, Z Guo, J Liu - Geophysics, 2021 - library.seg.org
ABSTRACT PP-wave azimuthal elastic impedance (EI) data inverted from azimuthal
prestack seismic reflection data can be theoretically and practically used for fluid-and …

Stress-Dependent PP-Wave Reflection Coefficient for Fourier-Coefficients-Based Seismic Inversion in Horizontally Stressed Vertical Transversely Isotropic Media

X Pan, J Liu - Surveys in Geophysics, 2024 - Springer
The subsurface in situ stress fields significantly influence the elastic and anisotropic
properties of rocks, yet traditional linear elastic theories often overlook the impact of stress …

[PDF][PDF] 基于扩展方位弹性阻抗的裂缝参数及地应力参数预测方法

李林, 张广智 - 地球物理学报, 2022 - dsjyj.com.cn
摘要裂缝参数及水平应力差异比(DHSR) 的准确估测对于裂缝预测及水力压裂具有重要意义.
扩展弹性阻抗是一种预测弹性参数及物性参数的有效方法, 但其并未考虑各向异性的影响 …

Estimation of in situ stresses from PP-wave azimuthal seismic data in fracture-induced anisotropic media

X Pan, Z Liu, P Wang, Y Zheng, L Li, X Wang, Z Guo… - Geophysics, 2022 - library.seg.org
Horizontally transverse isotropy (HTI) induced by vertical or subvertical aligned fractures is
common for unconventional fractured porous shale oil or gas reservoirs. Compared with the …

Seismic characterization of in situ stress in orthorhombic shale reservoirs using anisotropic extended elastic impedance inversion

L Li, Y Guo, G Zhang, X Pan, J Zhang, Y Lin - Geophysics, 2022 - library.seg.org
Seismic characterization of anisotropic in situ stress is of great importance in improving the
success of planning drilling and hydraulic fracturing treatment. Shales generally exhibit …

Detection of natural tilted fractures from azimuthal seismic amplitude data based on linear-slip theory

X Pan, Z Zhao, S Zhou, X Zhao, K Xu… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
Tilted transverse isotropy (TTI) is common for naturally fractured reservoir when the fractures
exist a tilted axis of symmetry. Seismic characterization of natural tilted fractures from …

A matrix-fracture-fluid decoupled PP reflection coefficient approximation for seismic inversion in tilted transversely isotropic media

G Huang, J Ba, D Gei, JM Carcione - Geophysics, 2022 - library.seg.org
Fracture-induced azimuthal anisotropy of seismic waves has useful applications in the
characterization of hydrocarbon reservoirs as well as the overburden. Existing theories face …

Estimation of fracture parameters and in-situ stress parameter based on extended azimuthal elastic impedance

L LI, GZ ZHANG - Chinese Journal of Geophysics, 2022 - en.dzkx.org
Accurate estimation of fracture parameters and Differential Horizontal Stress Ratio (DHSR)
is of great significance for subsurface fracture prediction and hydraulic fracturing. Extended …

Azimuthal seismic reflection characteristics with quality factor Q in viscoelastic horizontal transverse isotropic media

Y Xi, X Yin - Journal of Geophysics and Engineering, 2023 - academic.oup.com
In seismic exploration, a precise description of the seismic reflection property is critical for
reservoir prediction and fluid identification. In the study of seismic wave transmission effects …