... in permeability and mechanical properties, leading to frequent occurrences of water intrusion and flooding accidents. In this study, triaxial compression test and permeability test were conducted on red sandstone under conditions of both no freeze-thaw cycle and one freeze-thaw cycle. The variation...

... poisson matrix information investigation prasad consideration sandstone young mechanical property ARMA 24 804 New method of XRF/XRD based mineralogy for estimating matrixmodulus, Biot s-coefficient and effective-stress using VRH and HS bounds of rock physics principles. Prasad, Umesh1 1.Teverra...

... ABSTRACT: Natural rocks usually contain joints, fractures, etc. However, current research on rocks' mechanical properties after thermal treatment focuses on intact rocks. To make up for this deficiency, we investigated the influence of temperature on the strength, deformation, and crack...

... 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...

... 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 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...

... precipitation reduced the average pore size of JY and YC samples. After interacting with SCCO 2 , the pore structure complexity of the QK and JY samples decreased slightly. Furthermore, the changes in mineral matrix and pore structure led to significant deterioration of the mechanical properties of the three...

... 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...

... 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...

... 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...

... 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...

..., UCS and scratch resistance measured in the cores. Therefore, nanoindentation in cutting is a cheap method to obtain mechanical properties when information or samples are not available, valuing cutting samples obtained prior to drilling new wells and getting cores and logs. Furthermore, it could...

... geologist mudstone wellbore integrity strength climate change average tensile strength engineering geology mudrock wolfcamp shale test fixture petroleum play type eagle ford geological subdiscipline room temperature bit testing mechanical property cunningham montana state university...

... and mechanical properties of the core samples were altered after implementing LN 2 treatment. The permeability enhancement was more significant than the porosity improvement. The ultrasonic velocities of the samples decreased after the cryogenic treatment owing to the creations of the new fractures inside...

..., including the pores and fractures in the rock, and hence change the permeability of the rock. Studies demonstrate that grain size significantly affects the mechanical properties and strength of rock, yet little research exists on the effect of grain size on stress-sensitive seepage behavior. In this study...

... discontinuities. In the first set of SCB specimens embedded with homogenous parallel inclusions, mechanical properties analogous to the host rock, demonstrated that fracture diversion is more likely to occur for smaller approach angle and wider spacing. The second set of samples were designed to contain...

... in the application of nanoindentation and AFM in tight sandstones. It will also benefit the study of micromechanical characteristics of various phases in tight sandstones. INTRODUCTION Acquiring the mechanical property is beneficial for several engineering aspects. Such as designing hydraulic fracturing schemes...

.... 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...

... 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...