Seismic characterization of reservoirs with multiple fracture sets using velocity and attenuation anisotropy data [PDF]
, 2011 Knowledge about the spatial distribution of the fracture density and the azimuthal fracture orientation can greatly help in optimizing production from fractured reservoirs.
Morten Jakobsen +5 more
core +1 more source
Influence of Error in Estimating Anisotropy Parameters on VTI Depth Imaging
International Journal of Geophysics, 2016 Thin layers in sedimentary rocks lead to seismic anisotropy which makes the wave velocity dependent on the propagation angle. This aspect causes errors in seismic imaging such as mispositioning of migrated events if anisotropy is not accounted for.
S. Y. Moussavi Alashloo +3 more
doaj +1 more source
Sharp Changes of Crustal Seismic Anisotropy Across the Central Tanlu Fault Zone in East China
Geophysical Research Letters, 2023 Both seismic and geodetic data suggested that the ∼120‐km long Weifang segment of the Tanlu fault zone, a large‐scale active strike‐slip system at east China, is a seismic gap with no obvious along‐strike shear motion at surface.
Wenpei Miao, Fenglin Niu, Haichao Chen
doaj +1 more source
Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]
, 2013 Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
core +1 more source
The development of magmatism along the Cameroon Volcanic Line: evidence from seismicity and seismic anisotropy [PDF]
, 2014 The Cameroon Volcanic Line (CVL) straddles the continent-ocean boundary in West Africa but exhibits no clear age progression. This renders it difficult to explain by traditional plume/plate motion hypotheses; thus, there remains no consensus on the ...
R. J. Gallacher +18 more
core +1 more source
Известия высших учебных заведений: Геология и разведка, 2022 Introduction. Reservoirs composed of thin layers with different elastic properties exhibit the anisotropy of elastic properties. Anisotropic environments are studied using special seismic positioning systems that require large financial and time ...
M. K. Savoyskaya, I. O. Bayuk
doaj +1 more source
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Understanding seismic anisotropy in the Rotondo granite: investigating stress as a potential source [PDF]
Solid EarthThe hypothesis of stress-induced seismic anisotropy was tested in the Bedretto Lab, a deep underground rock laboratory in the Swiss Alps. Several comprehensive cross-hole seismic surveys were acquired to analyze the directional dependency of seismic-wave
K. Behnen +7 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng +7 more
wiley +1 more source
Seismic anisotropy inferred from direct S-wave-derived splitting measurements and its geodynamic implications beneath southeastern Tibetan Plateau [PDF]
Solid Earth, 2017 The present study deals with detecting seismic anisotropy parameters beneath southeastern Tibet near Namcha Barwa Mountain using the splitting of direct S waves.
A. K. Tiwari +3 more
doaj +1 more source