First Cross-Dipole Shear Wave Imaging Application for Intersecting a Mother Open-Hole from a Near-Parallel Side-Track Wellbore

2018 ◽  
Author(s):  
Javier Alejandro Franquet ◽  
Rudra Pratap Narayan Singh ◽  
Nerwing Diaz ◽  
Atul Anurag ◽  
Mohamed Ali Al Balooshi ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Imaging ◽  
Parallel Side ◽  
Imaging Application ◽  
Wave Imaging ◽  
Open Hole ◽  
Side Track

scholarly journals Shear wave imaging to determine near-borehole faults for ocean drilling exploration

2019 ◽  
Vol 217 (1) ◽  
pp. 288-293 ◽  
Author(s):  
Sheng-Qing Lee ◽  
Xiao-Ming Tang ◽  
Yuan-da Su
Keyword(s):  
Shear Wave ◽  
Imaging Technique ◽  
Geophysical Data ◽  
Fault System ◽  
Ocean Drilling Program ◽  
Shear Wave Imaging ◽  
Ocean Drilling ◽  
Imaging Application ◽  
Geological Information ◽  
Wave Imaging

SUMMARY The Deep Sea Drilling Project (DSDP) or Ocean Drilling Program (ODP), and the recent International Discovery Program (IODP) usually acquire borehole geophysical data for planetary exploration. A recently developed shear wave imaging technique was applied to the acoustic waveform log data of the IODP U1473A hole to image a fault system about 40 m away from the borehole. The shear wave imaging not only allowed us to delineate the fault structure in the vicinity of the borehole, but also to determine the orientation of the fault system, providing much needed information for the interpretation of the tectonic situation of the well site. Theory and method for the imaging application are elaborated and data processing results are presented along with the supporting borehole geophysical data. Its successful application to the IODP U1473A hole suggests that the shear wave imaging technique can be applied to the previously recorded and future ODP/IOPD borehole acoustic data, promising the extraction of valuable geophysical and geological information.

FROM THE BOREHOLE WALL INTO THE FORMATION – COMBINING BOREHOLE IMAGES WITH DEEP SHEAR WAVE IMAGING TECHNOLOGY

2019 ◽  
Author(s):  
Stefan Schimschal ◽  
Stephen Fayers ◽  
Nicklas Ritzmann ◽  
Martin Cox ◽  
Iain Whyte
Keyword(s):  
Shear Wave ◽  
Borehole Wall ◽  
Imaging Technology ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Natural shear wave imaging using vocal tract vibrations: Introducing vocal passive elastography (V-PE) to thyroid elasticity mapping

2021 ◽  
Vol 118 (2) ◽  
pp. 023702
Author(s):  
Steve Beuve ◽  
Samuel Callé ◽  
Elise Khoury ◽  
Emmanuel Gilles Simon ◽  
Jean-Pierre Remenieras
Keyword(s):  
Shear Wave ◽  
Vocal Tract ◽  
Shear Wave Imaging ◽  
Wave Imaging

A Color-Doppler Shear-Wave-Imaging Phase-reconstruction Method Using Four Color Flow Images

2016 ◽  
Vol 39 (3) ◽  
pp. 172-188
Author(s):  
Naoki Sunaguchi ◽  
Yoshiki Yamakoshi ◽  
Takahito Nakajima
Keyword(s):  
Image Quality ◽  
Shear Wave ◽  
Initial Phase ◽  
Color Doppler ◽  
Reconstruction Method ◽  
Phase Reconstruction ◽  
Color Flow ◽  
Shear Wave Imaging ◽  
Wave Imaging ◽  
Phase Map

This study investigates shear wave phase map reconstruction using a limited number of color flow images (CFIs) acquired with a color Doppler ultrasound imaging instrument. We propose an efficient reconstruction method to considerably reduce the number of CFIs required for reconstruction and compare this method with Fourier analysis-based color Doppler shear wave imaging. The proposed method uses a two-step phase reconstruction process, including an initial phase map derived from four CFIs using an advanced iterative algorithm of optical interferometry. The second step reduces phase artifacts in the initial phase map using an iterative correction procedure that cycles between the Fourier and inverse Fourier domains while imposing directional filtering and total variation regularization. We demonstrate the efficacy of this method using synthetic and experimental data of a breast phantom and human breast tissue. Our results show that the proposed method maintains image quality and reduces the number of CFIs required to four; previous methods have required at least 32 CFIs to achieve equivalent image quality. The proposed method is applicable to real-time shear wave elastography using a continuous shear wave produced by a mechanical vibrator.

Real time quantitative elastography using Supersonic Shear wave Imaging

2010 ◽  
Author(s):  
Mickael Tanter ◽  
Mathieu Pernot ◽  
Gabriel Montaldo ◽  
Jean-Luc Gennisson ◽  
Eric Bavu ◽  
...  
Keyword(s):  
Real Time ◽  
Shear Wave ◽  
Shear Wave Imaging ◽  
Wave Imaging

Suppression of the influence of surface waves on shear wave imaging for buried pipe location

2021 ◽  
pp. 104517
Author(s):  
Shuan Yan ◽  
Hongyong Yuan ◽  
Yan Gao ◽  
Boao Jin ◽  
Lizheng Deng ◽  
...  
Keyword(s):  
Surface Waves ◽  
Shear Wave ◽  
Buried Pipe ◽  
Shear Wave Imaging ◽  
Wave Imaging

Far _ Near Wellbore Fracture Characterization Using High Resolution Borehole Images and Deep Shear Wave Imaging

2020 ◽  
Author(s):  
N. Kerrouche ◽  
A. Alhammadi ◽  
A. AlMershed ◽  
H. Al-Khateeb ◽  
D.N. Tiwary ◽  
...  
Keyword(s):  
High Resolution ◽  
Shear Wave ◽  
Fracture Characterization ◽  
Shear Wave Imaging ◽  
Wave Imaging

Deep Shear Wave Imaging Helps Making Sidetrack Decisions in Fracture-Cave Carbonate Reservoir

2020 ◽  
Author(s):  
Chenglong Wang ◽  
Chengwen Xiao ◽  
Yi Xin ◽  
Wenxing Duan ◽  
Chengsen Zhang ◽  
...  
Keyword(s):  
Shear Wave ◽  
Carbonate Reservoir ◽  
Shear Wave Imaging ◽  
Wave Imaging
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