Shear‐wave splitting and fracture orientation analysis from PS waves — examples from synthetic and field OBC data

2001 ◽  
Author(s):  
Min Lou ◽  
Yaohui Zhang ◽  
Long Don Pham
Keyword(s):  
Shear Wave ◽  
Shear Wave Splitting ◽  
Orientation Analysis ◽  
Fracture Orientation ◽  
Wave Splitting

scholarly journals Shear Wave Splitting Analysis to Estimate Fracture Orientation and Frequency Dependent Anisotropy

2016 ◽  
Vol 64 (1) ◽  
pp. 76-100 ◽  
Author(s):  
Raoof Gholami ◽  
Ali Moradzadeh ◽  
Vamegh Rasouli ◽  
Javid Hanachi
Keyword(s):  
Shear Wave ◽  
Shear Wave Splitting ◽  
Frequency Dependent ◽  
Fracture Orientation ◽  
Wave Splitting

scholarly journals IDENTIFIKASI ORIENTASI REKAHAN MIKRO AREA PANAS BUMI MONTE AMIATA BERDASARKAN ANALISIS STUDI SHEAR WAVE SPLITTING

2020 ◽  
Vol 3 (2) ◽  
pp. 72
Author(s):  
Irfan - Hanif ◽  
Ahmad Zaenudin ◽  
Nandi Haerudin ◽  
Rahmat C Wibowo
Keyword(s):  
Wave Propagation ◽  
Shear Wave ◽  
Shear Wave Splitting ◽  
Earthquake Source ◽  
Polarization Direction ◽  
Fracture Orientation ◽  
High Anisotropy ◽  
Wave Splitting ◽  
Fracture Intensity ◽  
Fracture Distribution

Shear Wave Splitting is an application of seismic wave to analyse the anisotropy level of a certain medium. Generally, shear wave propagation through a rock formation will be polarized (φ) into two parts especially when the medium structures are different, such as fracture. The polarized shear wave which is perpendicular to fracture will propagate slower than the wave that propagates parallel to the fracture. The delay time (δt) of both wave is proportional with the fracture intensity along the wave propagation from the source to the station. The description regarding fracture orientation can be obtained by analysing both Shear Wave Splitting parameters (φ and δt), and this information is adequately important in geothermal exploration or exploitation phase at Mt. Amiata. Based on the result of this research, the micro earthquake source is focused on the east to the south area and spread along 3 earthquake stations. The existence of micro earthquake source is mainly focused at the depth of 1 to 4 km. In addition, the polarization direction of each earthquake station at the geological map shows a dominant fracture orientation consistently at NW-SE. All of the three stations also show that the polarization direction is integrated to the local fault existence in the subsurface. Furthermore, the research shows that the high intensity fracture distribution occurred at MCIV station area in the southern part of research location. Meanwhile, the low intensity fracture distribution occurred at ARCI and SACS station area in the western and the eastern part of research location. The high value of fracture intensity accompanied by the high amount of structure intensity, strengthen the prediction of the high anisotropy existence which potentially tends to the high permeability presence at the area.Keywords: shear wave splitting, anisotropy, fracture, geothermal, polarization direction, fracture intensity.

Analysis of shear wave splitting anisotropy in the Tres Virgenes Volcanic Complex, Baja California Sur, Mexico

Geothermics ◽  
2021 ◽  
Vol 94 ◽  
pp. 102115
Author(s):  
F. Chacón-Hernández ◽  
F.R. Zúñiga ◽  
J.O. Campos-Enríquez ◽  
J. Lermo-Samaniego ◽  
N. Jiménez-Méndez
Keyword(s):  
Shear Wave ◽  
Baja California ◽  
Shear Wave Splitting ◽  
Volcanic Complex ◽  
Baja California Sur ◽  
Wave Splitting

Effects of oil‐water saturation on shear‐wave splitting in multicomponent seismic data

2007 ◽  
Author(s):  
Zhongping Qian ◽  
Xiang‐Yang Li ◽  
Mark Chapman ◽  
Yonggang Zhang ◽  
Yanguang Wang
Keyword(s):  
Shear Wave ◽  
Seismic Data ◽  
Water Saturation ◽  
Shear Wave Splitting ◽  
Multicomponent Seismic ◽  
Wave Splitting ◽  
Oil Water

scholarly journals Variations in lithospheric anisotropy across the North Anatolian Fault revealed by teleseismic shear wave splitting

2021 ◽  
Author(s):  
David Cornwell ◽  
Sebastian Rost ◽  
David A Thompson ◽  
Gregory A. Houseman ◽  
Lisa A Millar ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Splitting ◽  
North Anatolian Fault ◽  
The North ◽  
Wave Splitting
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