... interpretation circulation geothermal drilling utilisation interaction torque subsurface nar drillability cuttings rpm university efficiency 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Informing deep geothermal reservoir rock mass properties from...

... the drill bit and the rock, as well as to improve the drilling speed through the efficiency increase of rock breakage (Ma et al., 1995; Wu et al., 2014). In deep and ultra-deep wells(Guarin et al., 1949; Whiteley and England, 1985; Wanamaker, 1951; Melamed et al., 2000), the difficulty of drilling speed...

... suggest that employing SH-GES for energy storage is a viable option. However, additional research is needed to gather more data regarding the geomechanical impacts and storage efficiency. INTRODUCTION The energy landscape is rapidly changing to mitigate the impact of climate change. The transition...

..., social uproar, force majeure etc. Among several approaches which can be adopted to manage rockbursts is the practice of destress blasting. It is necessary to evaluate the efficiency of any adopted destress blasting design. This can be done through the measurement of physical parameters such as changes...

... from each hole drilled, which enables optimization of drilling settings on a completely new level. The system has proven to be able to significantly improve hole quality, while reducing tool consumption and improving efficiency. Efficient rock drilling is the first step in reducing CO2 emissions...

... ABSTRACT: This study analyzes enhancement of disposal efficiency inversely proportional to disposal area based on three design factors for the high-level radioactive waste (HLW) repository such as decay heat optimization, increased thermal limit of buffer, and double-layer concept...

.... This trend is particularly evident in urban areas, where environmental considerations are paramount. Despite extensive research and remarkable developments in cutting efficiency and machine design, traditional mechanical excavation methods still face difficulties. For instance, conventional cutting tools...

... ABSTRACT: One of the major challenge in the production of TBMs is the design of the cutter-head. The main element affecting cutting efficiency is the choice of an adequate cutter spacing. Even a minor departure from the ideal spacing causes a decrease in cutting effectiveness. In this study...

... parameters that regulate the desired fragmentation level of a particular blast. Rock mass properties and blasting parameters control the efficiency of a blasting operation. This paper focused on the rock mass characterization and discontinuities properties in mining benches in two quarries (defined here...

... efficiency university risk management international conference ore recovery risk and uncertainty assessment knowledge management proceedings sublevel institute dilution metals & mining operator loading information technology exhibition engineering variation orebody...

... of a geodynamic event, develops an approach to assessing the economic efficiency of geodynamic monitoring and forecasting the state of the massif, identifies economic effects from improving the means of geodynamic monitoring and forecasting the state of the massif. The results obtained, in general, should...

... of the magnetic component of the alternating electromagnetic field, the conclusions were made with regard to the efficiency of the methodology and the tool. Based on the data obtained during the scientific research, it was found that the method is potentially promising. The proposed methodology makes it possible...

... structural geology aluminum mining roadheader boom-type roadheader efficiency metals & mining cuttability application experimental investigation pillar fragmentation reservoir characterization non-explosive mechanized mining international journal excavation cutter reservoir...

... reservoir geomechanics characteristic efficiency rock mechanic non-contact measuring system figure 3 metals & mining journal application figure construction stability cae stereo cameratm Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza...

... variation university assumption efficiency Abstract This work is intended to present an in-house coupled geomechanics and fluid-heat flow model and investigate the circulation performance when injecting cold water into a geothermal reservoir. To understand the dominant role of fractures...

... Reliability Method (FORM). The probability of failure of a rock slope in the First-Order Reliability Method is provided by a linear approximation of the failure function. The FORM is most commonly used because it is efficient; its accuracy, however, deteriorates when the nonlinearity of limit-state function...

... ABSTRACT Efficient rock breakage in terms of energy consumption and dust generation is significantly important. This research investigates the effect of pick orientation on the efficiency of breaking rocks in terms of cutting force and energy. The study was carried out by simulating a series...

..., large deformation and high strain rate. Subject: Modelling and numerical methods Keywords: numerical modelling, problem rocks, rock properties, rock stress 1 INTRODUCTION A clear understanding of the mechanics of the rock-cutting process is necessary to solve many problems of reduced drilling efficiency...

... element and boundary element methods. To evaluate the dynamic fundamental solutions, the semi-analytical approach to reduce the range of wavenumber integration is adopted within the boundary element framework. Numerical examples are presented to demonstrate the efficiency of the presented method...

... hochen Dreiaxigkeit unter dem Kontaktoberflache verbraucht wird. 1 INTRODUCTION This paper seeks to develop an approach to the improvement of the efficiency of drilling which takes into account both the efficiency of rock removal and the tool reliability and is based on the analysis...