Fracture network characterisation of the Balmuccia peridotite using drone-based photogrammetry,implications for active-seismic site survey for scientific drilling

作     者：Niccolo Menegoni Yuri Panara Andrew Greenwood Davide Mariani Alberto Zanetti Gyorgy Hetenyi Niccolò Menegoni;Yuri Panara;Andrew Greenwood;Davide Mariani;Alberto Zanetti;György Hetényi

作者机构：Ali I.Al-Naimi Petroleum Engineering Research CenterKing Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia Chair of Applied GeophysicsMontanuniversit€at LeobenLeobenAustria Department of Earth and Environmental SciencesUniversity of PaviaPaviaItaly Institute of Geosciences and Earth ResourcesNational Research Council(IGG-CNR)PaviaItaly Institute of Earth SciencesUniversity of Lausanne1015LausanneSwitzerland 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文）)

年 卷 期：2024年第16卷第10期

页      面：3961-3981页

核心收录：

学科分类：0820[工学-石油与天然气工程] 083002[工学-环境工程] 082001[工学-油气井工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：the Swiss National Science Foundation for the grant PP00P2_187199 of project OROG3NY 

主　　题：Remote sensing Fracture intensity Digital outcrop model(DOM) Rock discontinuity Fault SEismic imaging of the Ivrea ZonE(SEIZE) IvreaeVerbano Zone(IVZ) Crystalline rock 

摘      要：The presence of discontinuities(***,fractures,veins,layering)in crystalline rocks can be challenging for seismic interpretations because the wide range of their size,orientation,and intensity,which controls the mechanical properties of the rock and elastic wave propagation,resulting in equally varying seismic responses at different *** geometrical characterisation of adjacent outcrop discontinuity networks allows a better understanding of the nature of the subsurface rocks and aids seismic *** this study,we characterise the discontinuity network of the Balmuccia peridotite(BP)in the IvreaeVerbano Zone(IVZ),northwestern *** geological body is the focus of the Drilling the Ivrea eVerbano zonE(DIVE),an international continental scientific drilling project,and two active seismic surveys,SEismic imaging of the Ivrea ZonE(SEIZE)and high-resolution SEIZE(Hi-SEIZE),which aim to resolve the subsurface structure of the DIVE drilling target through high-resolution seismic *** fracture characterisation,we developed two drone-based digital outcrop models(DOMs)at two different resolutions(10^(-3)-10 m and 10^(-1)-10^(3)m),which allowed us to quantitatively characterise the orientation,size,and intensity of the main rock *** properties affect the seismic velocity and consequently the interpretation of the seismic *** found that(i)the outcropping BP discontinuity network is represented by three more sets of fractures with respect to those reported in the literature;(ii)the discontinuity sizes follow a power-law distribution,indicating similarity across scales,and(iii)discontinuity intensity is not uniformly distributed along the *** results help to explain the seismic behaviour of the BP detected by the SEIZE survey,suggesting that the low P-wave velocities observed can be related to the discontinuity network,and provide the basic topological parameters(orientation,density,distribution,and aperture)of the frac