... to provide a fast preliminary assessment of fault stability for fluid injection strategies in reservoirs or aquifers. The method allows to identify: i) the impact of the uncertain parameters affecting the fault stability; ii) possible critical cases for which a refinement of the analyses is required, e.g. 3D...

... ABSTRACT Preliminary analysis of the risks associated with on-going geologic carbon storage projects has to be conducted in conditions of limited knowledge about the participating rock formations to assess the feasibility of the potential injection site. Different sources of geomechanical data...

... and more rational numerical approach to assess wedge formation around underground mine openings. The approach considers the structural rock mass complexity using Discrete Fracture Network (DFN) modelling and the detailed 3D underground excavation profile obtained from surveying. The developed methodology...

... ABSTRACT Assessing and making decisions in underground mines is crucial and is difficult due to the harsh environment and the limitation of accessibility. Monitoring plays an important role in assessing ground conditions to ensure safety and efficiency. Through consistent monitoring, a safe...

... ABSTRACT: The current research generally believes that fault slip in the hydraulic fracturing process is the main cause of casing deformation. Therefore, accurate risk assessment of fault slip is an important way to prevent casing deformation. However, there are few studies on the prediction...

... is there. Also, the literature is silent on scientific design of such structures. A few references (Paronuzzi and Serafini, 2009; Schlotfeldt et al., 2018; Tokashiki and Aydan, 2010; Tsesarsky and Hatzor, 2009) studied some features and stability assessment of overhanging cliffs. reservoir...

...; Devarapalli et al., 2017; Mehmani et al., 2020; Wildenschild & Sheppard, 2013). algorithm upstream oil & gas reservoir simulation scaling method random forest algorithm carbonate machine learning interpolation artificial intelligence pixel assessment neural network reservoir...

... and mitigate the threats posed by along fault fluid migration potential. With minor modifications, this framework can be extended for risk assessments related to containments, caprock or seal integrity evaluations related to other activities such as exploration, enhanced oil recovery or carbon capture...

... development. Lost circulation is mainly caused by fracture. Seismic fracture prediction to assess lost circulation risk has limitations. Therefore, it is necessary to study more effective methods of lost circulation risk assessment. In this paper, based on the analysis of lost circulation, seismic prediction...

..., if the distance is small, the inflow rate will be overestimated. Therefore, the objective of this study is to investigate the effect of model dimension on tunnel inflow assessment in numerical modeling. To this end, UDEC for DEM and Seep/W for FEM modeling were used and the impact of different model parameters...

... assessment evaluation assessment field observation khaksar downhole sand control geomechanical sanding prediction ARMA 21 47 Comparison of Geomechanical Sanding Predictions at Early Field Life with Subsequent Years of Production and Field Observations Khaksar, A. Baker Hughes, Perth, Western...

... ABSTRACT: Seismic hazards have become one of the common risks in underground coal mining and their assessment is an important component of the safety management. In this study, a methodology, involving nine fractal dimension-based indices and a fuzzy comprehensive evaluation model, has been...

... ABSTRACT: The uncertainties related with spatial variability and heterogeneities, naturally present in rock masses, play an important role in geotechnical engineering practice. A more accurate assessment and characterisation is increasingly in need due to their impact on the mechanical...

... been detected and characterized in terms of point cloud analysis and provide a qualitative hazard system to assess rockfall probability by extensive characterization and parametrization of the joint systems. Results have demonstrated the capabilities of combining UAV platforms with computer-based...

... mass characterization, based on the above-mentioned GSI quantification, utilizing both LiDAR and photogrammetry point clouds from several rock slopes. The proposed semi-automated methodology leads to the extraction of space-resolved GSI values for the entire slope, by automatically assessing...

... aimed at assessing at a preliminary stage the stability conditions of a cave along with a safety margin with respect to the occurrence of failure. The charts have been defined upon the results of a large set of parametric two-dimensional finite-element analyses of ideal cases of underground cavities...

... different transitioning operations require different, but complementary evaluations be undertaken of the stability of the surface crown pillars that exist within the transitions. This paper accordingly examines some aspects of analysis uncertainty related to undertaking these transition zone assessments...

..., and at other mining operations. Upstream Oil & Gas metals & mining displacement manefay failure InSAR data manefay bed Artificial Intelligence manefay slide assessment machine learning interferogram mechanism slope failure satellite passive block Failure area rtkc Rio Tinto...

... hazard is elevated after blasting. Therefore, the design of exclusions and re-entry procedures should be based on an assessment of the hazard and risk. The best exposure management procedures reduce the risk to a tolerable level with as small a disruption to the mining production as possible...

... and reduction of coal production costs, but also important for the assessment of environmental impact of mining. This assessment requires accurate simulation of complex, highly non-linear and irreversible processes of rock deformation and fracturing due to coal mining and subsequent impact on ground and surface...