... representation of mineralogy in each cluster. Subsequently, we test four types of regression models, namely linear regression, support vector regression, Gaussian process regression, and extreme gradient boosting regression. The linear regression and Gaussian process regression provide the most accurate...

... and mineralogical characteristics of mine and mineral processing (mill) tailings, which will allow determination of melt composition and variability possible to achieve desired melt and glass-formation temperatures and viscosities. We report here on: (a) development of a tailings characterization protocol; (b...

... zone experiment brittleness index reservoir characterization ductile bi strain irwin length upstream oil & gas strength fracture toughness brittleness poisson friction angle specimen bi mineralogy distinction mineralogy tensile strength compressive strength nominally ARMA 21...

... ABSTRACT: Various studies have been done to develop dynamic rock mechanical properties (RMP) and rock strength of shale gas to estimate high accuracy value prediction when no core is available. However, previous studies did not consider the overpressure, mineralogy, and shale composition...

..., performing a robust equation calibrated with experimental data measured from the drill cutting shale samples. The MLR provides an indentation modulus and hardness after compositional independent variables, such as TOC, porosity, and mineralogy were measured. This was obtained both with SEM-EDS and XRD...

... wellbore integrity is one of the key challenges. Changes in cement mineralogy and associated mechanical properties may critically affect the integrity of high temperature wells. In this study, the relation between changes in mineralogy and mechanical properties of API class G cement with 40% silica flour...

... ABSTRACT: Predicting production decline is important for planning and developing unconventional assets. The contribution of creep deformation to production decline is still not isolated and quantified. Mineralogy and the total organic carbon (TOC) are known to drive the creep properties...

... and rock mechanical tests were conducted on well-preserved core samples from Zubair shale. The core samples characterization included the porosity, structure, texture, and mineralogy, using the free water content method, a scanning electron microscope image, a thin section photograph, and X-ray diffraction...

... and production. This study focuses on the integration among RHN and facies, mineralogy, natural fractures, reservoir quality, and rock mechanical properties of the unconventional “Mississippian Limestone” play in north-central Oklahoma, USA. In 2415 feet (736 m) of core, RHN correlates with porosity...

... that wettability plays a key role in water weakening. strength Reservoir Characterization porosity Brine mineralogy dodecane shale weakening Upstream Oil & Gas Wolfcamp reduction spectra wettability saturation Woodford imbibed sample hardness KCl brine average reduction shale sample...

... Eqn. (7) where is the final porosity, 0 is the initial porosity, Mi is the modulus of the inclusion, Mh is the modulus of the host, and M is the modulus of the mixture. Eq. (7) is the result of a single integration step. Multiple length scales and mineralogies are included in the model...

.... The experiments were conducted in a multistage pattern at three different stress levels. A comparison between inelastic time-dependent deformation of shale samples with different mineralogies at high pressures demonstrates that carbonate-rich shales show creep-hardening behavior at higher levels of stress whereas...

... geomechanical laboratory test programs. It is essential to develop correlations between the properties of the Cobourg limestone from the Bowmanville to Bruce sample source locations. This study presents a detailed mineralogy investigation to determine the composition of the Cobourg limestone at both locations...

... Abstract: Mudrocks are fine grained low permeability sedimentary rocks. Due to this low permeability, they are difficult to characterize in terms of physical properties. The use of the reconsolidation technique allows us to determine mudrock properties while controlling mineralogy, brine...

... at high stress during the reconslidation process. Friction angle increases with increasing sand content, while cohesion decreases. Future work includes investigating the role of total porosity and porosity type, grain size distributions, and percolating mineralogy on acoustic properties. Introduction...

... fracturing strength composition vein mineral weak interface Artificial Intelligence calcite vein variability mineralogy mineralization interface structural geology Thickness organic matter constituent ash bed ash bed layer lithology well logging Upstream Oil & Gas mudstone strength...

... drilling operation in-situ pressure condition Upstream Oil & Gas elasticity strength sidewall mineralogy real-time strength estimation formation type real time system real-time sidewall Baker Hughes compressive strength depth interval Symposium RoqSCAN estimation real-time data...

..., different calibrated properties were found to have equivalent stress-strain profiles in UCS tests. The behaviour of the calibrated stiffness and strength vein properties are examined at an excavation scale using a numerical example of a 10 m-diameter tunnel. US government strength mineralogy...

... Abstract In this paper we propose a model for the compressibility of unconsolidated sands along a zero lateral strain stress path which includes the effects of texture and mineralogy on the stress dependent compressibility. It is first developed quite generally to describe the evolution...

... mechanical properties based on the measurements of principal rock components affecting mechanical behavior: mineralogy, porosity and organic content. The precise measurement capability of the nanoindenter also enables the study of rock frame and organic content separately. Nanoindentation measurement...