... reservoirs by identifying the conditions and depths of the transition from brittle to ductile failure behavior. INTRODUCTION Crustal rocks typically contain some form of pore fluid, and most of these fluids are water (Price, 1975). Understanding how pore fluids affect the mechanical properties of rocks...

... ABSTRACT As a caprock for CO 2 geological sequestration, the mechanical properties of shale may change significantly from the long-term CO 2 -fluid interaction. To study the long-term effects of supercritical CO 2 -brine interaction on the mechanical properties of shale, the marine LMX shale...

... ABSTRACT Laboratory testing of rocks and developing their interrelationships is a good way for assessment of rock behavior for mining and construction industries. A detailed testing program was envisaged to establish possible correlations between porosity and mechanical properties...

... on mechanical properties and acoustic wave velocities. We used ceramic spherical particles with sizes of 250 μm − 425 μm as grains bonded together by three binding materials, namely i) Epoxy resin, ii) Sodium Silicate with Kaolinite, and iii) Portland cement. While fabricating the core plugs, in each case...

... and highly corrosive environment encountered in geothermal wells. In this study, we numerically evaluated the performance of a granite-based geopolymer based on its mechanical properties under different underground conditions, such as normal (30°C), moderate temperature (90°C), and elevated temperature (120...

... ABSTRACT Reliable estimation of the mechanical properties (e.g., strength) of weathered rocks is critical for taking proactive measures, such as adjusting mud weight density and/or drilling parameters, to achieve safe and efficient infill drilling. Currently, the common approach to estimating...

... pressure bar (SHPB) technique. The test results demonstrate the strain rate dependence of dynamic mechanical properties of both dry and water-saturated granite rock specimens. The presence of water lowers the dynamic compressive strength and elastic modulus of granite rock specimens. The dynamic increase...

... peridotite porosity mechanical property upstream oil & gas reservoir characterization ultramafic rock asia government conductivity hydraulic fracturing reservoir geomechanics bulk density strength p-wave velocity compressive strength poisson permeability sequestration thermal...

... ABSTRACT Fracturing fluid is the main cause of reservoir damage during hydraulic fracturing. Fracturing fluid will change the mechanical properties of reservoir rock, and the effect of proppant-propping hydraulic fractures will be affected. To study the changes and internal mechanism...

... and shales. Their ensuing hydro-thermo-chemo-mechanical properties affect the performance of near-surface infrastructures (e.g., foundations, pavements, tunnels), hydraulic fracturing and shale gas recovery (Speight, 2013), and the seal capacity for CO 2 geological storage (Kang et al., 2011; Heller...

... drillability, high hardness and strong abrasive property in underground high-temperature and high-pressure environment. Therefore, the effect of temperature and pressure on physical and mechanical properties and drillability of granite was explored with deep water pore pressure servo system and rock...

.... Finally, the results indicated that the newly developed device was applicable for the physical and mechanical properties investigation of grouting reinforced for broken rock under different temperatures, which also had the advantage of small size and flexible installation. The strength, ultrasonic...

... network created by induced hydraulic fractures. Also, there is still no comprehensive knowledge on the impact of geomechanical alterations on the hydrothermal fluid migration in EGS. This study presents a systematic review of the effects of changes in mechanical properties on the fracture behavior...

... ABSTRACT In this study, the grain-based model (GBM) is used to evaluate the influence of freeze-thaw cycles (FTCs) action on the mechanical properties of sandstone. Five mineral components of sandstone are built in the numerical model based on GBM. To explore the influence of FTCs, water...

... these three methodologies are quantified. The AGBM is found to be the most accurate, and is subsequently extended to measure the mechanical properties of unconventional rock samples, Hammadah al Hamra 346 (HaH 346) asteroid meteorites. The microstructure, mineral composition and mechanical properties of rock...

... ABSTRACT The different conditions associated with geothermal wells call for cement grouts that are lightweight, flexible and same time, possess good mechanical properties that can improve well integrity. This paper presents an experimental study of formulating lightweight and resilient cement...

... & gas geologist geology asia government engineering property asteroid artificial intelligence cohesion lunar regolith exploration mars internal friction angle extraterrestrial regolith regolith martian regolith friction angle water ice detection particle size mechanical property...

... that there are significant differences in the mechanical properties of the coal seam and the up and bottom layers. In terms of stress prediction results, the LX coal seam has a large interlayer stress difference with the up and bottom layers. The vertical stress is the maximum in the three-dimensional stress, which belongs...

... ABSTRACT The moon exploration has progressed to the phase of in-situ resource utilization. It is critical to comprehend the unique mechanical response and engineering properties of lunar regolith for successful exploration. Currently, most experimental studies on the mechanical properties...

... ABSTRACT Traditional macro-mechanical parameter testing methods, such as single-triaxial rock mechanics experiments, have high requirements on the size and integrity of rock samples. The nanoindentation technique has been gradually applied to the testing of rock mechanical properties, which...